U.S. patent application number 10/072732 was filed with the patent office on 2002-09-05 for omni- directional weight-bearing support assistive device.
This patent application is currently assigned to Ultimate Support Systems, Inc.. Invention is credited to Eason, Donald H., House, Kenneth W., Workman, Jonathan P..
Application Number | 20020121755 10/072732 |
Document ID | / |
Family ID | 21732855 |
Filed Date | 2002-09-05 |
United States Patent
Application |
20020121755 |
Kind Code |
A1 |
Workman, Jonathan P. ; et
al. |
September 5, 2002 |
Omni- directional weight-bearing support assistive device
Abstract
The present invention may provide a support assistive device for
a user having a frame assembly (1), a vertical pelvis support
element (2) connected to the frame assembly which may primarily
support the ischial tuberosities (34), and a horizontal pelvis
support element (3) which may primarily support the anterior
superior iliac spines (35) of a pelvis (1a). It may provide such
support with minimal or no hand or arm support. By supporting on
the anterior superior iliac spine (35) on either side, a moment can
be created to assist in turning even without the use of hands by
simply turning the direction of the pelvis (1a). The created moment
of the present invention is more natural to the user in turning the
pelvis and as a result the device. The present invention may also
provide a fluidic braking assembly (53) for any rotatable elements
(48), which can be advantaged to assist a user in supplying an
increase of force to actuate the braking action. The braking system
may be actuated from a single station or multiple stations and may
provide braking in any direction the wheels are turned, that is,
omni-directionally. It may also include a elevation assembly (5)
that can assist lowering of an upper frame assembly (6) to a
corresponding elevation with a lower frame assembly (4) to assist
in packaging and in transportation. It may also provide a rotatable
swivel lock system (54) for the rotatable elements (48) that may be
restrained in various orientations, and may be controlled through a
single station.
Inventors: |
Workman, Jonathan P.;
(Loveland, CO) ; House, Kenneth W.; (Fort Collins,
CO) ; Eason, Donald H.; (Fort Collins, CO) |
Correspondence
Address: |
Santangelo Law Offices, P.C.
Third Floor
125 South Howes
Fort Collins
CO
80521
US
|
Assignee: |
Ultimate Support Systems,
Inc.
Fort Collins
CO
|
Family ID: |
21732855 |
Appl. No.: |
10/072732 |
Filed: |
February 5, 2002 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
10072732 |
Feb 5, 2002 |
|
|
|
09091388 |
Jun 12, 1998 |
|
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|
6343802 |
|
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09091388 |
Jun 12, 1998 |
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PCT/US96/20698 |
Dec 12, 1996 |
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60008649 |
Dec 14, 1995 |
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Current U.S.
Class: |
280/87.021 |
Current CPC
Class: |
A61H 3/04 20130101; A61H
2201/1633 20130101; A61H 2201/0173 20130101; A61H 2003/007
20130101; A61H 3/008 20130101; A61H 2201/0161 20130101; A61H
2201/163 20130101; A61H 2201/0192 20130101; A61H 2003/046
20130101 |
Class at
Publication: |
280/87.021 |
International
Class: |
B62M 001/00 |
Claims
1. A support assistive device for a user having a pelvis with an
anterior superior iliac spine comprising: a. a frame assembly; b. a
vertical pelvis support element connected to said frame assembly;
and c. a horizontal pelvis support element designed to support
primarily said anterior superior iliac spine of said pelvis and
connected to said frame assembly.
2. A support assistive device as described in claim 1 wherein said
frame assembly comprises a lower frame assembly, an elevation
assembly connected to said lower frame assembly, an upper frame
assembly connected to elevation assembly, and wherein said vertical
pelvis support element is connected to said upper frame
assembly.
3. A support assistive device as described in claim 2 wherein said
lower frame assembly comprises a first lower frame element and a
second lower frame element and wherein said second lower frame
element is connected in an upwardly inclining manner to said first
lower frame element.
4. A support assistive device as described in claim 2 or 3 wherein
said lower frame assembly is open toward a first end for access and
closed toward a second end and wherein said second end is elevated
for increased gait stride.
5. A support assistive device as described in claim 2 wherein said
elevation assembly comprises a forcing element to assist in
elevation adjustment.
6. A support assistive device as described in claim 5 wherein said
elevation assembly is designed to be independently activated from a
plurality of independent locations.
7. A support assistive device as described in claim 6 wherein said
elevation assembly is designed to be directly activated from a
plurality of said independent locations.
8. A support assistive device as described in claim 2 wherein said
upper frame assembly comprises a first upper frame assembly height
adjustment element and a second upper frame assembly height
adjustment element wherein a relative height of said first and
second upper frame assembly height adjustment elements is
adjustable.
9. A support assistive device as described in claim 1 wherein said
vertical pelvis support element supports primarily at least one
ischial tuberosity.
10. A support assistive device as described in claim 1 wherein said
horizontal pelvis support element is horizontally adjustable
relative to said vertical pelvis support element.
11. A support assistive device as described in claim 1 wherein said
horizontal pelvis support element is vertically adjustable relative
to said vertical pelvis support element.
12. A support assistive device as described in claim 1 wherein said
horizontal pelvis support element comprises a left and right
support element wherein said left and right support elements act
independently of one another and further comprising a gap between
said left and right support elements.
13. A support assistive device as described in claim 1 wherein said
vertical pelvis support element and horizontal pelvis support
element interactively support said pelvis at locations that allow a
full striding gait.
14. A support assistive device as described in claim 1 wherein said
vertical pelvis support element and horizontal pelvis support
element interactively support said pelvis at locations that allow a
fall striding gait independent of the substantial use of arms for
support.
15. A support assistive device of claim 1 wherein said vertical
pelvis support element and said horizontal pelvis support element
further comprises adjustment elements that are adjustable
independent of each other.
16. A support assistive device as described in claim 1 wherein said
horizontal pelvis support element comprises at least one horizontal
pelvis securing element capable of securing said horizontal pelvis
support element.
17. A support assistive device as described in claim 2 wherein said
upper frame assembly comprises an adjustable first restraining
element designed to restrain said anterior superior iliac spine
against said horizontal pelvis support element.
18. A support assistive device as described in claim 17 wherein
said first restraining element is supported by a second restraining
element.
19. A support assistive device as described in claim 1 further
comprising a plurality of rotatable elements connected to said
frame assembly.
20. A support assistive device as described in claim 1 wherein said
frame assembly comprises a lower frame assembly connected to a
plurality of rotatable elements, an elevation assembly connected to
said lower frame assembly, and an upper frame assembly connected to
said elevation element.
21. A support assistive device as described in claim 19 or 20
further comprising a braking assembly.
22. A support assistive device as described in claim 21 wherein
said braking assembly is fluidicly actuated.
23. A support assistive device as described in claim 22 wherein
said braking assembly comprises a remote braking actuator attached
to said braking assembly to remotely actuate said braking
assembly.
24. A support assistive device of claim 23 wherein said remote
braking actuator is securable for at least one rotatable
element.
25. A support assistive device as described in claim 22 wherein
said braking assembly is advantaged.
26. A support assistive device as described in claim 23 wherein
said remote braking actuator further comprises a single station and
wherein said single station brakes a plurality of rotatable
elements.
27. A support assistive device as described in claim 21 wherein
said braking assembly omni-directionally brakes said rotatable
elements.
28. A support assistive device as described in claim 23 wherein
said braking assembly omni-directionally brakes said rotatable
elements.
29. A support assistive device as described in claim 26 wherein
said braking assembly omni-directionally brakes said rotatable
elements.
30. A support assistive device as described in claim 27 wherein
said braking assembly brakes simultaneously a plurality of
rotatable elements.
31. A support assistive device as described in claim 2 wherein said
elevation assembly is designed to allow lowering of said upper
frame assembly to a corresponding elevation with said lower frame
assembly.
32. A support assistive device as described in claim 2 wherein said
rotatable elements rotate about a horizontal first axis and
separately turn about a second axis substantially perpendicular to
a horizontal plane with respect to said lower frame assembly.
33. A support assistive device as described in claim 19 wherein
said rotatable elements rotate about a horizontal first axis and
separately turn about a second axis substantially perpendicular to
a horizontal plane with respect to said lower frame assembly and
wherein said rotatable elements are designed to be folded
substantially within an envelope of said frame assembly.
34. A support assistive device as described in claim 19 wherein
said rotatable elements rotate about a horizontal first axis and
separately turn about a second axis substantially perpendicular to
a horizontal plane with respect to said lower frame assembly and
wherein said rotatable elements are designed to be folded to a
substantially aligned planar position with respect to said
horizontal plane on said lower frame assembly.
35. A support assistive device as described in claim 32 wherein
said rotatable elements are designed to be swivel locked into a
position about said second axis.
36. A support assistive device as described in claim 35 further
comprising a single station to swivel lock a plurality of said
rotatable elements.
37. A support assistive device as described in claim 32 wherein
said rotatable elements are designed to be automatically swivel
locked into a position when said rotatable elements are folded.
38. A method of supporting a user having a pelvis in a support
assistive device comprising: a. providing a frame assembly; b.
positioning said pelvis near a vertical pelvis support element; c.
vertically supporting said pelvis with said vertical pelvis support
element; and d. horizontally supporting said pelvis in a frontal
plane primarily in the proximity of an anterior superior iliac
spine of said pelvis with a horizontal pelvis support element.
39. A method of supporting said user in said support assistive
device as described in claim 38 comprising the step of pivotally
revolving said horizontal pelvis support element to move said
horizontal pelvis support element.
40. A method of supporting said user in said support assistive
device as described in claim 38 wherein said step of providing a
frame assembly comprises the steps of: a. providing a lower frame
assembly; and b. connecting an upper frame assembly to said lower
frame assembly.
41. A method of supporting said user in said support assistive
device as described in claim 40 wherein said step of connecting
said upper frame assembly to said lower frame assembly comprises
the step of hingeably connecting said upper frame assembly to said
lower frame assembly and the step of forcibly changing elevations
of said upper frame assembly and said vertical pelvis support
element.
42. A method of supporting said user in said support assistive
device as described in claim 41 further comprising the step of
allowing said step of forcibly changing elevations from a plurality
of direct and independent locations.
43. A method of supporting said user in said support assistive
device as described in claim 38 wherein said step of horizontally
supporting said pelvis in a frontal plane comprises the step of
supporting said pelvis while allowing a full striding gait.
44. A method of supporting said user in said support assistive
device as described in claim 43 further comprising the step of
supporting said pelvis substantially independently of at least one
arm of said user.
45. A method of supporting said user in said support assistive
device as described in claim 38 comprising the step of allowing
said horizontal pelvis support element to be secured with an
advantage.
46. A method of supporting said user in said support assistive
device as described in claim 38 or 43 wherein said step of
horizontally supporting said pelvis comprises the step of securing
said horizontal pelvis support element in a variable position.
47. A method of supporting said user in said support assistive
device as described in claim 40 comprising the step of providing a
plurality of said rotatable elements connected to said lower frame
assembly and flexibly allowing said rotatable elements to turn
about a first axis substantially parallel to a horizontal plane
with respect to said lower frame assembly while allowing said
rotatable elements to separately turn about a second axis
substantially perpendicular to a horizontal plane with respect to
said lower frame assembly.
48. A method of supporting said user in said support assistive
device as described in claim 47 further comprising the step of
braking said support assistive device with a braking assembly.
49. A method of supporting said user in said support assistive
device as described in claim 48 wherein said step of braking
further comprises the step of fluidicly actuating said braking
assembly.
50. A method of supporting said user in said support assistive
device as described in claim 48 wherein said step of braking
comprises the step of advantaging said braking assembly.
51. A method of supporting said user in said support assistive
device as described in claim 48 wherein said step of braking
comprises the step of braking a plurality of rotatable elements
from a single station.
52. A method of supporting said user in said support assistive
device as described in claim 48 or 51 wherein said step of braking
comprises the step of braking omni-directionally.
53. A method of supporting said user in said support assistive
device as described in claim 52 wherein said step of braking
omni-directionally comprises the step of braking simultaneously
said plurality of rotatable elements.
54. A method of supporting said user in said support assistive
device as described in claim 47 further comprising the step of
folding said rotatable elements substantially within an envelope of
said frame assembly.
55. A method of supporting said user in said support assistive
device as described in claim 47 further comprising the step of
allowing said rotatable elements to be swivel locked into a
plurality of positions about said second axis.
56. A method of supporting said user in said support assistive
device as described in claim 55 wherein said step of allowing said
rotatable elements to be swivel locked further comprises the step
of allowing from a single station.
57. A method of supporting said user in said support assistive
device as described in claim 54 further comprising the step of
allowing said rotatable elements to be automatically swivel locked
into a position when said step of folding said rotatable elements
substantially within an envelope of said frame assembly occurs.
58. A support assistive device for a user having a pelvis with an
anterior superior iliac spine comprising: a. a frame assembly; b a
vertical pelvis support element connected to said frame assembly
wherein said vertical pelvis support element supports primarily a
lower bony structure of said pelvis; and c. a horizontal pelvis
support element connected to said frame assembly wherein said
horizontal pelvis support element is positioned toward a front of
said support assistive device and supports primarily a second bony
structure in a frontal plane of said pelvis in a forward position
and at a separate location from said vertical pelvis support
element.
59. A support assistive device for a user having a pelvis with an
anterior superior iliac spine comprising: a. a frame assembly; b. a
vertical pelvis support element connected to said frame assembly
wherein said vertical pelvis support element supports primarily at
least one ischial tuberosity of said pelvis; and c. a horizontal
pelvis support element connected to said frame assembly wherein
said pelvis support element supports primarily at least one
anterior superior iliac spine of said pelvis.
60. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 58 or 59
wherein said horizontal pelvis support element comprises a left
support element to support primarily a left anterior superior iliac
spine of said pelvis and a right support element to support
primarily a right anterior superior iliac spine of said pelvis.
61. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 60 wherein said
left and right support elements are connected.
62. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 60 wherein said
left and right support elements pivot about an axis on said frame
assembly.
63. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 58 or 59
wherein said vertical pelvis support element is located at a
different elevation than said horizontal pelvis support
element.
64. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 63 said
vertical pelvis support element is adjustable relative to said
horizontal pelvis support element.
65. A support assistive device as described in claim 64 wherein
said horizontal pelvis support element is horizontally adjustable
relative to said vertical pelvis support element.
66. A support assistive device as described in claim 65 wherein
said horizontal pelvis support element is vertically adjustable
relative to said vertical pelvis support element.
67. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 60 wherein said
vertical pelvis support element is located at a different elevation
than said pelvis support element.
68. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 58 or 59
wherein said horizontal pelvis support element is primarily a
curved element.
69. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 58 or 68
comprising a pelvis biasing element attached to said horizontal
pelvis support element.
70. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 60 wherein said
left and right support elements are separated by a gap.
71. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 58 wherein
vertical pelvis support element and said horizontal pelvis support
element supports said bony structures of said pelvis at a full
striding gait location.
72. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 58 and 59
wherein said vertical pelvis support element and horizontal pelvis
support element interactively support said pelvis to allow a full
striding gait independent of the substantial use of arms for
support.
73. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 58 or 59
wherein said horizontal pelvis support element comprises a
horizontal pelvis securing element connected to said pelvis support
element to secure said horizontal pelvis support element.
74. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 60 wherein said
pelvis support element further comprises a horizontal pelvis
securing element connected to said pelvis support element to secure
said horizontal pelvis support element.
75. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 74 wherein said
horizontal pelvis securing element further comprises a left
securing element for said left support element and a right securing
element for said right support element wherein said left and right
securing elements act independently of each other.
76. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 58 or 59
comprising a plurality of rotatable elements connected to said
frame assembly.
77. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 76 further
comprising a braking assembly.
78. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 77 wherein said
braking assembly is fluidicly actuated.
79. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 78 wherein said
braking assembly further comprises a remote braking actuator
attached to said braking assembly for remotely actuating said
braking assembly to brake a plurality of rotatable elements.
80. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 78 wherein said
braking assembly is advantaged.
81. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 79 wherein said
braking assembly is advantaged.
82. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 79 wherein said
remote braking actuator element further comprises a single station
and wherein said single station brakes a plurality of rotatable
elements.
83. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 80 wherein said
actuating element further comprises a single station and wherein
said single station brakes a plurality of rotatable elements.
84. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 77 wherein said
braking assembly omni-directionally brakes said rotatable
elements.
85. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 84 wherein said
braking assembly brakes simultaneously a plurality of rotatable
elements.
86. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 58 wherein said
frame assembly comprises a lower frame assembly and a upper frame
assembly and an elevation assembly connected between said lower and
upper frame assemblies and wherein said elevation assembly allows
changing an elevation of said upper frame assembly to a
corresponding elevation with said lower frame assembly.
87. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 86 wherein said
elevation assembly further comprises a forcing element to assist
said user in said changing of said elevation.
88. A support assistive device as described in claim 86 or 87
wherein said elevation assembly is designed to be directly and
independently activated from a plurality of independent
locations.
89. A support assistive device as described in claim 88 wherein
said elevation assembly is designed to be directly activated from a
plurality of said independent locations.
90. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 76 wherein said
rotatable elements are designed to be folded substantially within
an envelope of said frame assembly.
91. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 86 wherein said
rotatable elements are designed to be folded substantially within
an envelope of said frame assembly.
92. A method of supporting a user having a pelvis in a support
assistive device comprising: a. positioning said pelvis near a
pelvis support; b. biasing said pelvis toward said pelvis support;
c. vertically supporting said pelvis primarily at a first bony
structure of said pelvis; and d. horizontally supporting said
pelvis at a second bony structure in a frontal position at a
separate elevation from said step of vertically supporting said
pelvis.
93. A method of supporting a user having a pelvis in a support
assistive device comprising: a. positioning said pelvis near a
pelvis support; b. biasing said pelvis toward said pelvis support;
c. vertically supporting said pelvis primarily on at least one
ischial tuberosity of said pelvis; and d. horizontally supporting
said pelvis primarily on at least one anterior superior iliac
spine.
94. A method of supporting said user in said support assistive
device as described in claim 93 wherein said step of vertically
supporting said pelvis occurs at a different elevation than said
step of horizontally supporting said pelvis.
95. A method of supporting said user in said support assistive
device as described in claim 92 wherein said step of horizontally
supporting comprises the step of primarily supporting with a curved
line support.
96. A method of supporting said user in said support assistive
device as described in claim 92 wherein said second bony structure
comprises a left and right anterior superior iliac spine and
wherein said step of horizontally supporting said pelvis comprises
the step of supporting primarily said left and right anterior
superior iliac spine.
97. A method of supporting said user in said support assistive
device as described in claim 92 or 96 wherein said step of
horizontally supporting said pelvis comprises the step of
independently supporting a pelvis with a left support element and a
right support element.
98. A method of supporting said user in said support assistive
device as described in claim 97 wherein said step of horizontally
supporting said pelvis further comprises the step of leaving a gap
between left and right support elements.
99. A method of supporting said user in said support assistive
device as described in claim 92 comprising the step of allowing a
full striding gait.
100. A method of supporting said user in said support assistive
device as described in claim 93 comprising the step of allowing a
full striding gait.
101. A method of supporting said user in said support assistive
device as described in claim 92 or 93 further comprising the step
of supporting said pelvis substantially independently of at least
one arm of said user.
102. A method of supporting said user in said support assistive
device as described in claim 92 or 99 wherein said step of
vertically supporting the pelvis and said step of horizontally
supporting said pelvis comprises the step of allowing elevation
adjustments.
103. A method of supporting said user in said support assistive
device as described in claim 92 or 95 wherein step of biasing said
pelvis comprises the step of biasing said pelvis toward said second
bony structure with a first restraining element.
104. A method of supporting said user in said support assistive
device as described in claim 92 or 93 comprising the step of
providing a plurality of said rotatable elements connected to a
frame assembly on said support assistive device and flexibly
allowing said rotatable elements to turn about a first axis
substantially parallel to a horizontal plane with respect to said
frame assembly while allowing said rotatable elements to separately
turn about a second axis substantially perpendicular to a
horizontal plane with respect to said frame assembly.
105. A method of supporting said user in said support assistive
device as described in claim 104 further comprising the step of
allowing said rotatable elements to be swivel locked into a
plurality of positions about said second axis.
106. A method of supporting a user having a pelvis in a support
assistive device as described in claim 105 wherein said step of
allowing said rotatable elements to be swivel locked further
comprises the step of allowing from a single station.
107. A method of supporting said user in said support assistive
device as described in claim 104 further comprising the step of
braking said support assistive device with a braking assembly.
108. A method of supporting said user in said support assistive
device as described in claim 107 wherein said step of braking
further comprises the step of fluidicly actuating said braking
assembly.
109. A method of supporting said user in said support assistive
device as described in claim 107 wherein said step of braking
comprises the step of advantaging said braking assembly.
110. A method of supporting said user in said support assistive
device as described in claim 107 wherein said step of braking
comprises the step of braking a plurality of rotatable elements
from a single station.
111. A method of supporting said user in said support assistive
device as described in claim 107 or 110 wherein said step of
braking comprises the step of braking omni-directionally.
112. A method of supporting said user in said support assistive
device as described in claim 111 wherein said step of braking
omni-directionally comprises the step of braking simultaneously
said plurality of rotatable elements.
113. A method of supporting a user having a pelvis in a support
assistive device comprising the steps of: a. providing a support
assistive device with a plurality of rotatable elements; and b.
fluidicly actuating a braking assembly connected to said rotatable
elements.
114. A method of supporting said user in said support assistive
device as described in claim 113 comprising the step of advantaging
said braking assembly.
115. A method of supporting a user having a pelvis in a support
assistive device comprising: a. providing a support assistive
device with a plurality of rotatable elements; b. fluidicly
actuating a braking assembly; and c. braking a plurality of said
rotatable elements.
116. A method of supporting said user in said support assistive
device as described in claim 115 wherein said step of braking
comprises the step of braking a plurality of said rotatable
elements from a single braking station.
117. A method of supporting a user having a pelvis in a support
assistive device comprising: a. providing a support assistive
device with a plurality of rotatable elements; b. actuating a
braking assembly; and c. omni-directionally remote braking a
plurality of said rotatable elements.
118. A method of supporting said user in said support assistive
device as described in claim 117 wherein said step of
omni-directionally remote braking comprises the step of braking
simultaneously omni-directionally a plurality of said rotatable
elements.
119. A method of supporting said user in said support assistive
device as described in claim 117 wherein step of actuating said
braking assembly occurs from a single station.
120. A method of supporting said user in said support assistive
device as described in claim 118 wherein step of actuating said
braking assembly occurs from a plurality of stations.
121. A method of supporting said user in said support assistive
device as described in claim 118 wherein step of actuating said
braking assembly occurs from a single station.
122. A support assistive device for a user having a pelvis with an
anterior superior iliac spine comprising: a. a frame assembly; b. a
plurality of rotatable elements connected to said frame assembly;
c. a fluidic braking assembly affecting at least one of said
rotatable elements; and d. a remote braking actuator coupled to
said fluidic braking assembly.
123. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 122 wherein
said braking assembly is advantaged to provide increased force in
actuating said braking assembly.
124. A support assistive device for a user having a pelvis with an
anterior superior iliac spine comprising: a. a frame assembly; b. a
plurality of rotatable elements connected to said frame assembly;
c. a fluidic braking assembly affecting a plurality of said
rotatable elements; and d. a braking station coupled to said
fluidic braking assembly to actuate braking of a plurality of said
rotatable elements from said station.
125. A support assistive device for a user having a pelvis with an
anterior superior iliac spine comprising: a. a frame assembly; b. a
plurality of rotatable elements connected to said frame assembly
wherein said rotatable elements positionally turn about a
substantially perpendicular axis to a plurality of turned positions
wherein said perpendicular axis is perpendicular to a plane formed
by said rotatable elements; and c. an omni-directional braking
assembly designed to allow remote braking of at least one of said
rotatable elements in a plurality of said turned positions.
126. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 125 wherein
said omni-directional braking assembly brakes simultaneously a
plurality of said rotatable elements.
127. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 125 or 126
further comprising a single braking station wherein said braking
station brakes a plurality of said rotatable elements.
128. A support assistive device for a user having a pelvis with an
anterior superior iliac spine as described in claim 122, 124, or
125 further comprising a plurality of braking stations wherein said
braking stations brake a plurality of said rotatable elements.
129. A method of supporting a user having a pelvis in a support
assistive device comprising: a. providing a support assistive
device having a lower frame assembly and an upper frame assembly
connected to the lower frame assembly by an elevation assembly; and
b. vertically changing an elevation of said upper frame assembly
while maintaining a horizontal orientation to an elevation that
corresponds with said lower frame assembly.
130. A method of supporting said user in said support assistive
device as described in claim 129 comprising the step of providing a
plurality of rotatable elements attached to said lower frame
assembly.
131. A method of supporting said user in said support assistive
device as described in claim 130 further comprising the step of
repositioning at least one of said rotatable elements to a
substantially parallel plane with said lower frame assembly.
132. A method of supporting said user in said support assistive
device as described in claim 130 further comprising the step of
repositioning at least one of said rotatable elements within an
envelope of said upper and lower frame assemblies.
133. A method of supporting said user in said support assistive
device as described in claim 129 wherein said upper frame assembly
is oriented in a substantially constant pelvic orientation and
wherein step of folding comprises the step of maintaining said
upper frame assembly in said substantially constant pelvic
orientation while said step of folding occurs.
134. A method of supporting said user in said support assistive
device as described in claim 133 wherein said step of maintaining
said upper frame assembly in said substantially constant pelvic
orientation comprises utilizing a four bar linkage.
135. A method of supporting said user in said support assistive
device as described in claim 134 wherein said step of maintaining
said upper frame assembly in said substantially constant pelvic
orientation comprises maintaining said upper frame substantially
level.
136. A method of supporting said user in said support assistive
device as described in claim 134 wherein said upper frame assembly
comprises a horizontal pelvis support element and further
comprising the step of lowering said horizontal pelvis support
element relative to said upper frame assembly.
137. A support assistive device for a user having a pelvis with an
anterior superior iliac spine comprising: a. a frame assembly
comprising: i. a lower frame assembly; ii. a lowerable upper frame
assembly; and b. an elevation assembly connecting said upper frame
assembly to said lower frame assembly wherein said elevation
assembly is designed to allow said upper frame assembly to
vertically change elevation to a corresponding elevation with said
lower frame assembly and to maintain the upper frame assembly in a
substantially constant pelvic orientation as said upper frame
assembly changes elevation.
138. A support assistive device as described in claim 137
comprising a plurality of rotatable elements and a frame wheel
repositionable support connecting said plurality of rotatable
elements to said lower frame assembly wherein said frame wheel
repositionable support is designed to allow said rotatable elements
to be folded substantially within an envelope of said frame
assembly.
139. A support assistive device as described in claim 137 wherein
said elevation assembly is designed to maintain said upper frame
assembly in a substantially level orientation at a variety of
elevations.
140. A support assistive device as described in claim 137 wherein
said elevation assembly is designed to be directly and
independently activated from a plurality of independent
locations.
141. A support assistive device for a user having a pelvis with an
anterior superior iliac spine comprising: a. a lower frame
assembly; b. an elevation assembly connected to said lower frame
assembly; and c. an upper frame assembly having an adjustable
height and connected to said elevation assembly comprising: i. a
vertical pelvis support element; and ii. a horizontal pelvis
support element designed to support primarily at least one anterior
superior iliac spine of said pelvis.
142. A support assistive device of claim 141 wherein said vertical
pelvis support element and said horizontal pelvis support element
further comprise adjustment elements that are adjustable
independent of each other.
143. A support assistive device as described in claim 141
comprising a relative adjustment element to adjust the proximity of
said vertical pelvis support element with respect to said
horizontal pelvis support element.
144. A support assistive device as described in claim 141
comprising an adjustable tilt angle element connected to said
vertical pelvis support element.
145. A support assistive device as described in claim 141 wherein
said elevation assembly comprises a forcing element to assist in an
adjustment of a relative height between said lower and upper frame
assembly.
146. A support assistive device as described in claim 141 wherein
said forcing element comprises a pressurized cylinder.
147. A support assistive device as described in claim 141 wherein
said upper frame assembly comprises a first upper frame assembly
height adjustment element and a second upper frame assembly height
adjustment element wherein a relative height of said first and
second upper frame assembly height adjustment elements is
adjustable.
148. A support assistive device as described in claim 147 wherein
said first upper frame assembly height adjustment element and said
second upper frame assembly height adjustment element further
comprises holes and wherein said first upper frame assembly height
adjustment element slidably engages said second upper frame
assembly height adjustment element and wherein said first upper
frame assembly height adjustment element is secured by use of a
height fixing element which engages at least one hole on said first
upper frame assembly height adjustment element aligned with at
least one hole on said second upper frame assembly height
adjustment element.
149. A support assistive device as described in claim 141 wherein
said upper frame assembly comprises a pressurized cylinder for
adjusting the position of said upper frame assembly.
150. A support assistive device as described in claim 147 wherein
said upper frame assembly further comprises a collar clamp attached
to said second upper frame assembly height adjustment element.
151. A support assistive device as described in claim 147 wherein
second upper frame assembly height adjustment element comprises
notched indentions for ease of adjustment.
152. A support assistive device as described in claim 141 wherein
said horizontal pelvis support element comprises a pressurized
cylinder to adjust said horizontal pelvis support element.
153. A support assistive device as described in claim 141 wherein
said horizontal pelvis support element comprises notched indentions
for ease of adjustment.
Description
TECHNICAL FIELD
[0001] Generally, this invention relates to the field of medical
support assistive devices. Specifically, the invention focuses upon
concentrated vertical and horizontal support in certain bony
structures of the body to assist and support a user in ambulation
of medical support assistive devices.
Background Art
[0002] The medical field of medical support assistive devices is
generally well known. Many patents through the decades have been
focused upon this particular area. Generally, the patents focus
upon restraining support of different areas of the body depending
on the different capabilities of the user. For instance, U.S. Pat.
No. 4,312,505 to Englehart, entitled "An Invalid's Wheeled Walker",
shows a belt restraining above the waist of the user with padded
arm supports to support the body. U.S. Pat. No. 5,058,912 to
Harroun, entitled "Combination Chair/Walker", shows a wheeled
device with a crotch supporting "diaper" arrangement. Other
references show various methods of supporting the user, aged an
infant to an older adult. Some of these assistive devices are
stationary requiring a user to lift the apparatus, walk, and then
set it down to recover for the next step. Others are mobile in that
they contain rotatable elements such as wheels, casters, rollers,
and so forth by which the user ambulates. Generally, these devices
fall in three categories. The first category are those devices
which require the user to support his body, in some cases, with
only an arm rest or arm support. Thus, the arms can tire frequently
as the user ambulates. The next category requires the user to be
strapped in and held typically about the chest, waist, or fixed
about a large portion of the hips. This type of restraint can be
intimidating for some users, uncomfortable for others, and can
produce chaffing and skin irritation. Other supports are for the
more physically disadvantaged, in that the user is not able to
support his weight, and must rely upon either others to assist the
person in his ambulation or upon power-operated movement such as a
battery powered wheel chair. One example of a commercial assistive
device is known as the Arrow Walker developed overseas by Theraplay
Limited in Kelwinning, Scottland, and is sold in the U.S. by Triad,
Inc., from Cumberland, Md. It advertises that it helps children
"experience the joy of independent movement." However, in viewing
the depiction of the product, even it does not appear to rely upon
pelvic movement, but relies upon arm and hand support and movement
to ambulate. The pelvis does not appear to be engaged in a frontal
horizontal plane; instead, the upper chest is saddled. Another
example of a commercially available embodiment is known as the
U-step made in the U.S. by In-Step Mobility Products Corporation of
Skokie, Ill. It again is of the type that relies upon arm and hand
support to assist the user.
[0003] In reviewing the available references, it is apparent that a
gap is missing in the field of support assistive devices. The gap
is filled by the present invention. The gap that is missing
includes the ability to allow a normal gait of a user, who is able
to at least partially support his weight, without the use of, or
the substantial use of, hands or arms to support the user's weight.
The may be done selectively by concentrated and limited engagement
of the user's pelvis. Furthermore, the device may assist the user
in changing elevations through power assistive systems and may
include rotatable elements, such as wheels, an improved braking
system, and a swivel lock system.
[0004] This area of improvement has heretofore gone unnoticed in
spite of a long felt need and the long available arts and elements.
What is surprising is that the present invention fills the gap even
though the field is crowded with a wide variety of devices and
improvements. Certainly, those in the art appreciated that a
problem existed in attempting to make more comfortable and useful
assistive devices, yet apparently failed to appreciate the
solution. With the field crowded, it may be apparent that those
skilled in the art made substantial attempts to fill the need, but
were unsuccessful in achieving what the present invention
accomplishes. In contrast, the apparent direction of the art was to
teach away from the technical direction of the present invention in
that, among other aspects, generally the direction was to support
more rigidly more area of the body, not less, as the present
invention teaches. Furthermore, the present invention is unique in
its combination of results from what some could consider simple and
available elements. Actually, this direction resulted in the
unexpected results of the present invention in that focused and
limited support could be made and yet allow a user to be supported
even in case of a lapse into unconsciousness.
DISCLOSURE OF THE INVENTION
[0005] The present invention involves a unique awareness of key
support areas that allows a user to ambulate without undue
restriction. It recognizes the importance of supporting primarily
at two bony structures of the body, restrains the pelvis in a
limited fashion, and enables the user to walk, turn, and raise and
lower with minimal or no arm and hand involvement. The two primary
bony structures of the pelvis used in the present invention
typically may be the ischial tuberosities and the anterior superior
iliac spines. A typical person using the devices will have two of
each, unless through some physical disability or surgery, they have
been removed or otherwise might not have the f all support of both
bony structures. The invention could work in some degree for even
those individuals without both ischial tuberosities and both
anterior superior iliac spines. The present invention realizes a
key is to support in these focused areas and not to restrain in the
other areas that typically were taught in the art. This focused
engagement allows a large degree of movement, comfort, and
ambulation. When used with an elevation assembly, the present
invention may allow variable weight-bearing that can encourage
physical conditioning as well as assist people with permanent
disabilities. Its present structure can reduce falls, increase
mobility and day to day functionality, and assist in returning to
the work force.
[0006] One object of the present invention is to provide a support
assistive device for a user having a frame assembly, a vertical
pelvis support element connected to the frame, and a horizontal
pelvis support element supporting primarily the anterior superior
iliac spine of a l o pelvis. One goal of this object is to provide
such a device that assists in improving the gait stride of the user
as well as a forcing element to assist the user in weight-bearing
and in elevation adjustments. Another goal is to provide the
improved gait with minimal or no hand or arm support. Another goal
of this object is to support primarily the ischial tuberosities
while supporting anterior superior iliac spines. FIG. 6 shows with
specificity the locations of the anterior superior iliac spine and
the ischial tuberosities using a skeletal model. Noteworthy in this
invention is the recognition that by supporting the ischial
tuberosity, located behind the center of gravity of the body, a
forward moment may be created. This forward moment may be
counteracted by supporting the anterior superior iliac spine in a
forward position, located in a frontal plane of the body. Thus, the
two sets of supports oppose each other. This tends to allow full
support without the substantial use (or even no use) of hands or
arms to support the body. Also, noteworthy is the fact that by
supporting on the anterior superior iliac spine on either side, a
moment can be created to assist in turning even without the use of
hands by simply turning the direction of the pelvis. In other
inventions, this frontal support to counteract the moment created
by supporting the ischial tuberosities is most often provided by
the hands or arms. In the other inventions, also, the hands and
arms may be used to create a turning moment to the device. By
contrast, the created moment of the present invention is more
natural to the user in turning the pelvis and as a result the
device. This movement may generally be available without the use of
hands, arms, and so forth in direct contrast to such products as
the Arrow Walker and U-Step and others. Such support allows freedom
of movement for the user and may allow the hands and arms
unencumbered to perform other tasks. Another goal of this object is
to provide a fluidic braking assembly for any rotatable elements,
which can be advantaged to assist a user in supplying an increase
of force to actuate the braking action. Other goals are to provide
a single station that could brake a plurality of rotatable elements
and to provide braking in any direction the wheels are turned, that
is, omni-directionally. Another goal of this object is to provide a
device that could be lowered to a corresponding elevation with a
lower frame assembly to assist in packaging and in transportation.
Another goal is to provide a rotatable swivel lock system for the
rotatable elements that may be restrained in various orientations,
and may be controlled through a single station.
[0007] Another object of the present invention is to provide a
support assistive device having a frame assembly, a vertical pelvis
support element, and a horizontal pelvis support element that
supports primarily in the forward position and at a separate
elevation or location from the vertical pelvis support element. A
goal of the present invention is to allow the pelvis to be
supported with a left and right support element which may act
independently of each other. Another goal of the present invention
is to provide a biasing element to bias the pelvis toward the
pelvis support while vertically supporting the pelvis primarily at
a first or lower bony structure and while horizontally supporting
the pelvis in a forward position at a second bony structure in a
frontal plane of the pelvis. A goal of the invention is to provide
elevation adjustments commensurate with the appropriate locations
of supporting the bony structures. A further goal of the present
invention is to provide a support assistive device having a
plurality of rotatable elements and a fluidic braking assembly to
brake the rotatable elements. Such a goal could include the
advantaging of the braking assembly to assist the user in actuating
the brakes. It could also include a single braking station and a
swivel lock system to include a plurality of rotatable
elements.
[0008] A further object of the present invention is to provide a
lower frame assembly and an upper frame assembly with a plurality
of rotatable elements such that the upper frame assembly may be
horizontally lowered (or otherwise change elevations) to a
corresponding elevation with the lower frame and may include the
rotatable elements folding within the envelope of the frame.
[0009] Still, a further goal of the invention is to provide a
support assistive device with a lower frame assembly, an elevation
assembly to assist in elevation adjustments, and an upper frame
assembly. The upper frame assembly could include a vertical pelvis
support element, a horizontal pelvis support element to support at
least one anterior superior iliac spine, and adjustment elements to
adjust the proximity of the vertical pelvis support element with
respect to the horizontal pelvis support element. One goal could
include providing a forcing element such as a pressurized cylinder
to assist the support elements in adjustments.
[0010] Naturally, further goals and objects of the invention are
disclosed throughout other areas of the specification and
claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 represents a isometric view of the preferred
embodiment of the invention.
[0012] FIG. 2 represents a detailed assembly drawing of various
components of the present invention shown in FIG. 1 and incorporate
the individual portions of FIGS. 2A-2E.
[0013] FIG. 3 shows a typical user using the support assistive
device where the weight may be at least partially supported and yet
allow a full striding gait or to otherwise ambulate depending on
the user's capabilities, typically, without relying on hands and
arms to support the user.
[0014] FIG. 4 shows a user using the support assistive device in a
lowered position to allow picking up objects from, for instance, a
floor and to subsequently return via a forcing element to a desired
elevation.
[0015] FIG. 5 shows a user in a unconscious state sufficiently
retained in a support assistive device to avoid falling.
[0016] FIG. 6 shows the two areas of primary contact of the ischial
tuberosities and the anterior superior iliac spines using a
skeletal model.
[0017] FIG. 7 shows a detail of a dual actuated cylinder actuating
lever, used in the present invention to actuate the elevation
assembly from a plurality of locations.
[0018] FIG. 8 shows the left and right support elements which may
operate independently of each other and may leave a gap between the
elements.
[0019] FIG. 9 shows the rotatable elements in a retracted state in
a substantially planer configuration with respect to the frame
members.
[0020] FIG. 10 shows the rotatable elements in a similar retracted
position as in FIG. 9 within the envelope of the frame.
[0021] FIG. 11 shows an assembled view of fluidic conduit lines
attached to the rotatable elements to control the swiveling and
braking.
BEST MODE FOR CARRYING OUT THE INVENTION
[0022] The basic concepts of the present invention may be
implemented in a variety of ways. It involves the support assistive
device, the method of using the support assistive device, different
aspects of the support assistive device such as braking,
weight-bearing, pelvic supporting, swiveling, and folding of the
support assistive device. Furthermore, various aspects mentioned
above may be applicable to a variety of devices and where
applicable could include wheelchairs, gurneys, and other devices.
Various techniques related to the device and steps are inherent to
the utilization. They may simply be the natural result of utilizing
the device as intended and described. In addition, while some
devices are disclosed, it would be understood that these not only
accomplish certain methods, but also can be varied in number of
ways. Importantly, as to all the foregoing, all of these facets
should be understood to be encompassed by this patent.
[0023] In regard to general aspects and by referring to FIG. 3, it
can be seen that the present invention allows a user to ambulate
with a great deal of flexibility not achieved in other devices.
Also, it may be noted that the weight-bearing support assistive
device can vary the weight imposed upon the legs to be commensurate
with the support capabilities of the user. In some cases, it may
even be that the user has minimal weight upon the legs. This could
occur, for instance, if the user had become disabled in the legs or
is recovering from surgery, or is otherwise in a rehabilitation
process. It is also apparent by viewing FIG. 3 that by selectively
engaging the pelvis as with the present invention, the support
assistive device can be used without the substantial use of hands
or arms. In some cases, the user may not have the capability to use
hands and arms, and thus this feature is deemed important to some
uses of the present invention. A third aspect, in viewing FIG. 3,
is that by engaging the pelvis, the user can direct the support
assistive device by simply rotating the user's pelvis as the user
walks and moves. This movement conforms more naturally to normal
movements and assists the user to direct the device while
performing other tasks such as shopping, writing, and other
functions. This function corresponds more generally and more
naturally to the function that other individuals, without the need
for the support assistive device, could perform. This aspect is in
direct contrast to the other devices in the market place which
generally require the use of hands and arms in restricted movement
to use a device. A fourth aspect, in viewing FIG. 3, is shown in
the open front and raised rear structure of the lower frame
assembly. Thus, the user has an improved gait capability without
undue restrictions generally found in other devices in the market
place. Also, in reviewing other devices that support the upper
torso, they may tend to restrict the weight transfer that otherwise
is beneficial in initiating walking or moving.
[0024] FIG. 4 shows a user restrained in the support assistive
device, yet able to adequately bend at the waist to pick up even
small objects from a lower elevation such as the floor. One of the
features of the present invention is that it engages and supports
the pelvis in a minimal area and yet still allows flexibility to
the user as is generally possible. This flexibility may include
bending, turning, and so forth. The device as will be described in
detail below, may be raised and lowered to change elevations using
an elevation assembly. This elevation assembly may assist the user
with the user's weight as the user changes elevations. Thus, even a
user having difficulty with weight may quickly adjust the elevation
using the weight-bearing support assistive device to perform
various functions not normally found in other devices.
[0025] FIG. 5 shows another aspect of the present invention in that
even though the user is able to freely ambulate, bend over to pick
up items from the floor, and otherwise perform more natural
movements, in case of unconsciousness, the user may be restrained
from a fall that could injure the user.
[0026] FIG. 6 shows key aspects of the present invention. The
present invention engages and supports the pelvis (1a) in primarily
two bony structures typical of pelvic structures. The ischial
tuberosity (34) is shown supported by vertical pelvis support
element (2) . The anterior superior iliac spine (35) is shown
supported by the horizontal pelvis support element (3). As shown,
the right support element (39) supports the right anterior superior
iliac spine. A mirror image may occur for the left side of the
pelvis (la) and the left anterior superior iliac spine.
[0027] Having described some general aspects and functions of the
present invention, reference is made to FIGS. 1 and 2 in more
detail. The preferred embodiment may have at least the following
primary elements including a frame assembly (1) and a pelvis
support which may be divided into a vertical pelvis support element
(2) and a horizontal pelvis support element (3). The term
"assembly" is used to mean the overall structure of the particular
element and may include sub-elements, washers, bolts, and so forth
or even a unitary element. The term "connected " includes direct or
indirect connection, such as through intervening members and is
intended to include elements that are responsive to other elements.
Depending on the needs and embodiments, the frame assembly may have
rotatable elements (48) attached to it. The horizontal pelvis
support element (3) is designed to support primarily the anterior
superior iliac spine (34) of the pelvis and may be connected to the
vertical pelvis support element (2), directly or to a portion of
the frame assembly. The verb "support", as used herein, at the
ischial tuberosity and the anterior superior iliac spine, is meant
to include support in the proximity of the forward protrusion of
the anterior superior iliac spine or the lower protrusion of the
ischial tuberosity. This is to allow for some variation in the
comfort of the user to adjust the engagement point slightly above
or below or to the left or right of the most forward protrusion of
the anterior superior iliac spine or lower protrusion of the
ischial tuberosity. (Obviously, in most cases, the support could be
transferred through the intervening tissue, muscle, and fleshy
portions to these bony structures.) The term "element" may be a
single device or may be composed of multiple devices, such as
sub-elements. The term "primarily support" is meant to include the
majority of support needed to accomplish the goals and objects of
the present invention and to exclude other support that would
interfere with the goals and objects of the present invention, and
could be in contrast to other devices that, for instance, surround
and engage the entire periphery of the pelvis.
[0028] The frame assembly (1) may be made from appropriate
materials and may include a variety of other aspects such as
rubberized bumpers, internal mechanisms to be described below, and
other features. One feature of the preferred embodiment may be that
the device may use the inner volume of the frame assembly to hold
various components in the invention such as tubing, brake
cylinders, cams, and other features. This allows for a less
obtrusive external appearance. Part of the frame assembly (1)
includes the lower frame assembly (4), an elevation assembly (5)
connected to the lower frame assembly (4), and an upper frame
assembly (6) connected to the elevation assembly (5). The elevation
assembly (5) may include a four bar linkage assembly (7) which
assists to maintain a horizontal orientation of the upper frame
assembly (6) at different elevations. The four bar linkage assembly
(7) is well known to those in the art, and may include an upper
linkage element (7a) and a lower linkage element (7b). These may be
rotatably connected to the upper frame assembly on one end and the
lower frame assembly on a second end of each lower and upper
linkage element. To assist the user in adjusting the weight-bearing
pressure, the elevation assembly may also include a forcing element
(8). Particularly, in the preferred embodiment, the forcing element
(8) may include a pressurized cylinder as is shown in FIGS. 1 and
2. The pressurized cylinder may not only be adjustable for
elevation and weight-bearing, but may also assists in collapsing
and folding the preferred embodiment for transportation and
storage.
[0029] In contemplation of the preferred embodiment, the present
invention may allow actuation of the forcing element (8) from both
or either side of the upper frame assembly (6) with a left
actuation tab (9) and a right actuation tab (10), as shown in FIGS.
1 and 2. Of course, the actuation tabs could be positioned at
different locations. The location shown may be conducive to hand
actuation, but any other actuation may be accomplished at various
locations. The embodiment shown contemplates two tabs, although
more or less could be used, as those with ordinary skill would
naturally understand. In FIGS. 1 and 2, two cables are shown. A
left actuator cable (11) and right actuator cable (12) typically
are connected to left actuation tab (9) and right actuation tab
(10). Although a cable is envisioned, other devices and methods
could be used, as would be recognized by those with ordinary skill
in the art. The forcing element (8), which for purposes of this
embodiment may be a pressurized gas cylinder, may have a rod (13).
FIG. 2 also shows an actuator base (14) described in more detail
below.
[0030] More specifically, in FIG. 7, the rod (13) may be mounted to
the actuator base (14). Also, the left actuator cable (11) and
right actuator cable (12) may be mounted to the actuator base (14)
through a left coupling (16) and a right coupling (17),
respectively. An actuator lever (15) may be attached to the
actuator base (14) and may pivot about actuator pin (21), shown in
FIG. 2. As is customary with cables of the type shown, an inner
wire extends through the outside covering of the cable. This is
shown in FIG. 7 as a left actuator wire (18) and a right actuator
wire (19) extending from left actuator cable (11) and right
actuator cable (12), respectively. As shown, the left actuator wire
(18) and right actuator wire (19) may directly and independently be
attached to the actuator lever (15). In one preferred embodiment, a
pressurized gas cylinder, having an actuator (20), could be used
and engaged by the actuator lever (15) to release the rod (13) and
obtain the desired movement. Having a plurality of actuation points
as described above, that may operate directly and independently,
could allow for direct and generally less encumbered actuation from
a plurality of locations, and appears to be unknown in the market
place before the present invention. Each location can directly
activate the actuator without necessitating junctions and other
intermediate transitions. Each location also can activate,
independent of other locations, the actuator lever (15). While the
term actuator lever has been used, the concepts could apply to any
system actuating a pneumatic or hydraulic cylinder. For the
purposes of this embodiment, a locking gas cylinder may be used for
the forcing element (8). As those with ordinary skill in the art
could learn, locking gas cylinders are available in the marketplace
as spring blocking or rigid blocking. Either could be used with the
present invention, although the spring blocking type could have an
advantage in flexibly moving vertically with the gait of the user's
pelvis. Locking gas cylinders include an actuator that internally
releases gas pressure upon actuation. The actuator is depicted in
FIG. 2 as actuator (20). Typical brands include Bloc-O-Lift.RTM. by
Stabilus, as shown, or those cylinders made by the Suspa or other
companies.
[0031] Thus, by understanding the above description, it can be seen
that either actuation tab may be used to actuate the forcing
element (8) by moving its actuator wire in its respective actuator
cable. As the actuator wire is moved, the actuator lever (15)
pivots toward the actuator base (14) and presses the actuator (20)
which actuates the cylinder to assist in raising or lowering the
upper frame assembly (6). The advantage of this mode of actuator is
that a multiple of actuation tabs may be used from any location
conducive to the user or even an assistant to actuate the forcing
element (8).
[0032] Referring again to FIGS. 1 and 2, the elevation assembly (5)
may assist in maintaining the upper frame assembly (6) in a
generally constant pelvic orientation at a variety of elevations.
This feature may assist the support of the user's pelvis in a
consistent angle as the elevation changes. For instance, a four bar
linkage assembly (7) could be used, known to those in the art for
maintaining this constancy. The orientation of the upper frame
assembly could be substantially level with respect to the plane of
the lower frame assembly and the elevation assembly could assist in
maintaining that orientation at a variety of elevations.
[0033] As shown in FIGS. 1 and 2, the lower frame assembly (4) may
contain several elements. A first lower frame element (22) may form
a base. It may have twin lengths of tubing or other appropriate
structural forms. Connected to the first lower frame element (22)
in the preferred embodiment is a second lower frame element (23).
The second lower frame element (23) may be inclined in an upward
manner with respect to the first lower frame element (22). By
upwardly inclining the second lower frame element, the propensity
of the user's legs to impact the frame members generally may be
reduced and may allow a full striding gait, that is, not unduly
hinder the hip rotation of the pelvic joints while moving, thus
allowing more natural motion. By supporting the body in the manner
described herein, the full striding gait may be 35 accomplished
without the substantial use of the arms, other than perhaps the
occasional height adjustment or egress or ingress to the device and
so forth. In other words, the arms in the preferred embodiment may
not be necessary to support or guide the present invention as in
other devices. Additionally, a first end (24) between the lower
frame element (22) may be opened for easy access and increased
versatility in movement. A second end (25) may be closed to support
the structure and the second lower frame element (23) may be
elevated or may be upwardly inclined to provide clearance in the
preferred embodiment while the user is walking or otherwise making
a striding gait.
[0034] In the preferred embodiment, the upper frame assembly may be
attached to the elevation element. Thus, the elevation element may
move the upper frame assembly as a unit. If the upper frame
assembly is configured to encompass the vertical pelvis support
element and the horizontal pelvis support element (which in
themselves may include various sub-elements described elsewhere),
then the elevation element would correspondingly move these two
elements as well. Naturally, the vertical pelvis support element
could be configured as a separate part of the device and may be
indirectly connected to the upper frame assembly. Likewise, the
horizontal pelvis support element could be separate from the upper
frame assembly and may be indirectly connected to the upper frame
assembly. As a further available adjustment, the vertical pelvis
support element may be independently adjustable (either
"horizontally" or "vertically" or both) relative to the horizontal
pelvis support element, even though they may be connected directly
to the upper frame assembly.
[0035] The upper frame assembly (6) may include several
sub-elements to support the pelvis in a generally vertical manner.
This may include the sub-element referred to as the vertical pelvis
support element (2). By "vertical", the term is meant to include
any direction that has a vertical component, which may not be
necessarily in a strict up and down direction. (Likewise,
"horizontal" is meant to include any direction that has a
horizontal component, which may not be necessarily in a strict
lateral direction.) Sub-elements of the upper frame assembly (6) to
assist in adjustments may include a first upper frame assembly
height adjustment element (27) which may slidably engage a second
upper frame assembly height adjustment element (28). Each height
adjustment element may have its own hole (30a and 30b) or set of
holes or other apertures. At least one of the holes from one set is
designed to align with at least one hole of the other set at
various elevations. Once the holes are aligned, a height fixing
element (31) may secure the respective position of the first and
second height adjustment elements. The height fixing element may be
a biased (such as a spring) pin assembly which engages at least one
hole. Furthermore, the second upper frame assembly height
adjustment element (28) may include notched indentions (30c). The
notched indentions may be useful to allow the user to easily push
or otherwise disengage the height fixing element (31) away from the
holes (30a). Such notched indentions may provide extra clearance to
disengage the pin to assist in making the adjustments of the first
upper frame assembly height adjustment element (27). Notched
indentions could be useful in other arrangements in other joints of
the device for similar reasons. A collar type clamp (31a) may also
be used to secure the height of the first upper frame assembly
height adjustment element (27) with respect to the second upper
frame assembly height adjustment element (28). Other variations for
adjustment are certainly possible. As an example of an alternate
embodiment, the upper frame assembly (6) could include a
pressurized cylinder for adjusting similar to the forcing element
(8).
[0036] The vertical pelvis support element (2) may have several
sub-elements to assist in supporting the pelvis. For instance, in
the preferred embodiment, it may include a vertical pelvis support
engagement element (32) and associated mounting tubes, clamps, and
hardware, such as may be useful to connect it to the upper frame
assembly (6) and to provide its own adjustments. Obviously, it
could be connected to the frame assembly independent of the upper
frame assembly. The vertical pelvis support engagement element (32)
may be shaped similar to a bicycle seat. Generally, it may be a
support surface that would be of comfort to the user and yet allow
a full striding gait, where the user may be capable of such gait,
and generally would be designed to support primarily a lower bony
structure of the pelvis such as the ischial tuberosity. Typically,
the vertical pelvis support engagement element (32) may be located
in an upper area of the vertical pelvis support element (2). To aid
in flexibly allowing movement of the vertical pelvis support
engagement element (32), a flexible element (32a) may be used. This
flexible element may include a coil spring, leaf spring,
pressurized cylinder, or other device that would flexibly allow
movement as the user ambulates. Located in proximity to the
vertical pelvis support engagement element (32) may be an
adjustable tilt angle element (33). As shown in FIG. 2, the
adjustable tilt angle element (33) may include a slot and angular
or curving members that allow the vertical pelvis support
engagement element (32) to be repositioned to different angles for
the user's comfort.
[0037] Referring to FIG. 6, the vertical pelvis support element (2)
in the preferred embodiment may primarily support a first bony
structure. More specifically, it primarily supports at least one of
the ischial tuberosities (34) with the vertical pelvis support
engagement element (32). The horizontal pelvis support element (3)
may be adjustable relative to the vertical pelvis support element
(2). It may be adjustable "vertically" or "horizontally" relative
to the vertical pelvis support element. For instance, to accomplish
a generally horizontal adjustment, a relative adjustment element
(36), such as a screw with a handle may be used, as shown in FIGS.
1 and 2. The screw with the handle will be described in detail
below. Likewise, a similar arrangement could be used for the
vertical relative position of the horizontal pelvis support element
and the vertical pelvis support element. Other types of adjustments
are also described later.
[0038] The next major element to be described in detail is the
horizontal pelvis support element (3). The horizontal pelvis
support element (3) may be considered one of the key elements of
the present invention in conjunction with the vertical pelvis
support element. The horizontal pelvis support element (3) supports
the pelvis at specific areas, namely a second bony structure which
typically could be the anterior superior iliac spine. This type of
support and engagement is not taught by other devices or
disclosures. The present invention realizes that such contact is
needed to adequately support the pelvis. Yet, by placing such
contact primarily in this area, the user may walk with a full
striding gait, as the user's capabilities may allow, unencumbered
by unnecessarily restrictive restraints. Furthermore, by supporting
in this selective area, the user may bend, turn, tilt, and make
other more natural movements not found in other devices, especially
if the hands and arms are not substantially used for support. The
horizontal pelvis support element (3) may pivot or otherwise move
in order to contact the pelvis.
[0039] Contact with the pelvis in this area may be primarily
through a sub-element of the horizontal pelvis support element,
referred to as the horizontal contact element (37). In the
preferred embodiment, as shown in FIGS. 1 and 2, the horizontal
contact element (37) may be primarily a curved element. However,
other embodiments could use a small pad that primarily contacts in
the proximity of the anterior superior iliac spine. The goals and
objects of the present invention might be met by the horizontal
contact element being designed to contact primarily in the frontal
plane a second bony structure and generally to avoid contact in
other places such that movement would otherwise be restricted
unnecessarily. By the use of the term "horizontal", it is
specifically not meant that the engagement must necessarily be
through a horizontal plane. It is intended that such horizontal
support be directed to supporting the pelvis in a horizontal
direction, as contrasted to the vertical pelvis support element
which at least partly supports the pelvis in a vertical direction.
Thus, the horizontal pelvis support element could, for instance,
rotate vertically and engage the pelvis primarily in the proximity
of the anterior superior iliac spine through some localized pads.
Likewise, the horizontal pelvis support element could move in an
angular fashion toward the anterior superior iliac spine, for
instance, and still support the movement of the pelvis in a
horizontal position. Other embodiments are possible. For the
preferred embodiment, the horizontal pelvis support element may
engage the pelvis primarily at or in the proximity of the anterior
superior iliac spine in a horizontal fashion through a curved line
support as shown.
[0040] The horizontal pelvis support element (3) may be
substantially a one piece element that could, for instance, pivot
from one side. Alternatively, it may be divided into separate
components. For instance, it may include a left and a right support
element. Referring to FIGS. 1 and 2, in such an embodiment, a left
support element (38) might primarily engage and support in a
forward position a bony structure such as the left anterior
superior iliac spine of the pelvis. Correspondingly, a right
support element (39), might primarily engage and support in a
forward position a bony structure such as a right anterior superior
iliac spine of the pelvis. The left and right support elements
might rotate about its corresponding axis denoted as upper frame
axis (40) on the upper frame assembly (6). This would allow a user
to rotate the left and right support elements independently to a
position where the pelvis could gain access to the vertical pelvis
support element (2) and then to close back and to engage and
support the horizontal movement of the pelvis. As shown in FIG. 8,
a gap (41) between the left support element (38) and the right
support element (39) may be preferred for further comfort to the
user and yet support the user sufficiently to perform the goals and
objects of the present invention.
[0041] A horizontal pelvis securing element (42) may be a
sub-element of the horizontal pelvis support element (3). It may
also be incorporated into the individual components such as the
left and the right support elements, as shown in FIG. 2. The
horizontal pelvis securing element (42) may include a cam (43) and
a swing element (44) with a swing securing element (45). As a user
positions a pelvis on the vertical pelvis support element (2) and
rotates the horizontal pelvis support element (3) toward the bony
structure such as at an anterior superior iliac spine, such
rotation could be assisted by the swing element (44). The cam (43)
and swing element (44) may assist in leveraging or advantaging the
force of the horizontal pelvis support element (3) to engage the
anterior superior iliac spine. The horizontal pelvis securing
element (42) may additionally secure the horizontal pelvis support
element into a variety of positions as is appropriate for
individual users. The swing element may be secured in position by
the swing securing element (45) as shown in FIGS. 2 and 8.
[0042] One of the features of the present invention is that the
vertical pelvis support element (2) and the horizontal pelvis
support element (3) may interactively engage and support the pelvis
at locations that allow a full striding gait. Obviously, the user's
capabilities may determine how far a user may stride. However, the
capabilities of the present invention, by supporting in limited and
specific locations, allow the user to ambulate in a manner that
other devices have not allowed and yet secure the user
sufficiently. This movement may include pelvic pivot, bend,
rotation, stride and other gait movements. Such a position includes
supporting the pelvis vertically at a different elevation than
supporting the pelvis horizontally. As mentioned earlier, the
horizontal pelvis support element supports primarily a second bony
structure in a frontal plane of the user's pelvis. This is shown in
FIG. 6 using a skeletal model. The frontal plane of the pelvis
would include such forwardly extending structures such as the
anterior superior iliac spine.
[0043] A pelvis biasing element (46), as shown in FIGS. 1 and 2,
may be attached to the horizontal pelvis support element. The
pelvis biasing element (46) could be also attached to the upper
frame assembly (6) as shown in FIG. 1. The pelvis biasing element
(46) may include a first restraining element (46a). In the
preferred embodiment, the first restraining element (46a) may
include a belt to restrain the sacrum in a rearward plane of the
pelvis. The belt may be adjustable by utilizing such elements as
Velcro.RTM.. For additional convenience, the pelvis biasing element
(46) may include a second restraining element (47). One function of
the second restraining element (47) could be to support the first
restraining element in an appropriate location such that the user
might not be required to manipulate the first restraining element
when the user positioned the pelvis near the vertical pelvis
support element. Obviously, as one skilled in the art would
recognize, there are a variety of shapes, materials, and locations
to restrain the first restraining element. FIG. 8 shows one of many
alternative embodiments of the second restraining element (47). The
second restraining element (47) could be, for instance, a flexible
rod or spring wire attached to the upper frame (6).
[0044] In the preferred embodiment, as shown in FIGS. 1 and 2, the
horizontal pelvis support element (3) may be independently
adjustable in height to account for different elevations of
different users. Such an adjustment might be similar to the height
adjustment elements of the upper frame assembly (6) described
above, using apparatus and methods described similar to the first
and second upper frame assembly height adjustment elements.
Obviously, different combinations could accomplish the goal of
allowing adjustments.
[0045] The horizontal pelvis support element (3) may be adjusted
relative to the vertical pelvis support element (2). Such
adjustment may be made by providing notches, holes, and pins. For
the preferred embodiment, however, it may be convenient to provide
a handle with a screw that slidably adjusts the horizontal pelvis
support element (3). This may be seen in FIG. 1 and FIG. 2 as a
relative adjustment element (36) which may coordinate the
horizontal relative position. (Obviously, a similar arrangement,
and certainly other arrangements, could be available for a vertical
relative position adjustment.) The relative adjustment element (36)
may include a screw (36a) which engages the upper frame assembly
(6) on one end and a handle (36b) on another end such that the
relative location of the horizontal pelvis support element may be
variably adjusted. This relative adjustment element may assist the
user in adjusting the tilt of the pelvis and in obtaining a more
correct posture. Furthermore, the horizontal pelvis support element
(3) may be adjusted with respect to the vertical pelvis support
element (2) in a more vertical direction by the use of a height
adjustment element, similar to that used by the vertical pelvis
support element described in the preceding paragraphs. For
instance, this could include a telescoping tube arrangement,
secured by aligning holes and spring biased pins, as one
embodiment.
[0046] In the preferred embodiment, a plurality of rotatable
elements (48) as shown in FIGS. 1 and 2 could be connected to the
frame assembly. This could include being connected to the lower
frame assembly (4) near the first lower frame element (22). These
rotatable elements could include, for instance, wheels, casters,
rollers, and other rotating devices. These rotatable elements
generally could rotate about a horizontal axis (49) as shown in
FIG. 2. Separately, they could turn or swivel about a second axis
(50) which may be substantially perpendicular to a horizontal plane
with respect to the lower frame assembly (4). Additional movement
to the rotatable elements might include being designed to be folded
to a substantially aligned planer position with respect to the
horizontal plane to the lower frame assembly (4) when a frame wheel
repositionable support (52) is rotated. This is shown in FIG. 9
where the wheels are aligned in a substantially planer position
with respect to a horizontal plane near a lower frame assembly.
While FIG. 9 shows the wheels aligned in a substantially planer
position, the general intent of the folding of the rotatable
elements (48) is to reduce the volume necessary to store or
transport the device. Thus, as shown in FIG. 10, the rotatable
elements may be folded to within an envelope of the frame. By the
term "envelope", it is meant to include the volume created by
approximately the outside dimensions of the frame assembly and, as
shown in FIG. 10, could include the volume created by the
horizontal frame envelope dimension (51a), the vertical frame
envelope dimension (51b), and the depth of the frame assembly.
[0047] Referring again to FIGS. 1 and 2, the rotatable elements may
be folded to different orientations, typically within the envelope
of the frame assembly. These may be folded using a frame wheel
repositionable support (52). The frame wheel repositionable support
may include a position retarding assembly (52a) which may assist in
the folding by holding in a folded position. It may also include a
retainer (52c) to retain the repositioning orientation, known to
those in the art. For instance, to fold the rotatable elements (48)
to a folded state, the user might depress the pin, which may be
biased (such as with a spring) and act as a retainer (52c) by
engaging a hole in the lower frame element (22), to release the
frame wheel repositionable support (52) and rotate or otherwise
reposition the frame wheel repositionable support to a folded
position. Upon reuse, the frame wheel repositionable support may be
rotated back to where the pin engages into position. (This feature
is also described and shown in FIG. 11, below.) Naturally, other
embodiments are possible that could allow the rotatable elements to
be folded to a position within the envelope of the frame
assembly.
[0048] If the rotatable elements are included with the embodiment,
then a braking assembly (53) may be appropriate. The braking
assembly (53) may include a remote braking actuator (53a), a master
cylinder (53b), conduit lines (53c), a piston assembly (53d), a
cylinder (53g) inside the rotatable element swivel axle (53e), and
a brake shoe (53f). The braking assembly may be fluidicly actuated
in that it may use a fluid (either a gas or a liquid, as would be
known to those in the art) to remotely actuate the brake to engage
the rotatable element. This type of braking assembly is in contrast
to other devices in this field which typically may use a lever
mounted to the rotatable element itself that requires manual
actuation of each brake on each rotatable element so that the lever
itself drags the rolling surface of a wheel. It is also in contrast
to some devices which may use a variety of pulleys and cables to
actuate the brakes. The present braking assembly may brake the
rotatable elements fluidicly, may brake the rotatable elements in
any direction in which the rotatable elements have turned about the
second axis (50), and may brake a plurality of rotatable elements
simultaneously. Furthermore, the braking assembly of the present
invention may be advantaged in a mechanical or fluidic manner to
provide an increased force in actuating the braking assembly. For
instance, this could be useful for handicapped individuals needing
assistance to actuate the braking assembly with a larger degree of
force than their capabilities.
[0049] Another advantage of the braking assembly as part of the
present invention is that a single station could brake a plurality
of rotatably elements or the braking could include a multiple of
stations acting on different rotatable elements. Likewise, because
the braking assembly is fluidicly actuated, it may be placed at a
variety of convenient locations for the user or an assistant. In
the present invention, the remote braking actuator (53a) may be
located on the lower frame assembly (4). Such a location could
allow the user or an assistant to step on the actuator (53a) and
fluidicly brake, in the embodiment shown, each of the rotatable
elements simultaneously and omni-directionally (that is in any
direction to which the rotatable elements are turned or swiveled).
Naturally, it may be desirable to only brake a plurality of
rotatable elements less than the total number of the rotatable
elements or even a single rotatable element. Similarly, the remote
braking actuator could be located in a position where the user's
arms or hands could actuate the braking assembly. The master
cylinder (53b) may be actuated by the remote braking actuator such
that fluid pressure in the conduit lines (53c) actuates the piston
(53d) at each rotatable element which may be enclosed in a cylinder
(53g), which may in turn be located inside the rotatable element
swivel axle (53e), although it may be located other places as well.
Such actuation may force the brake shoe (53f) against the rotatable
element, causing friction, thus producing a braking function.
[0050] Other embodiments of braking assemblies are certainly
possible and may be included in the scope of the fluidicly
actuating braking assembly described above. Such alternate
embodiments could include disk brakes, either single or double
acting cylinders, and other friction causing devices to cause
restricted movement of the rotatable elements. Another aspect of
the braking assembly as described above is that it may function in
any position of the rotatable elements, even in a folded position,
such as when the rotatable elements are folded within the envelope
of the frame assembly.
[0051] In addition to the braking assembly, the present invention
may include a rotatable swivel lock system. The rotatable swivel
lock system (54) may include swivel actuator (54a), master cylinder
(54b), conduit lines (54c), swivel cylinder (54d), swivel piston
(54e), wrench (54f), pivot point (54g), and rotatable element
swivel axle (53e), as shown in FIGS. 1 and 2. The swivel actuator
(54a) may be similar to the remote braking actuator (53a). In the
present invention, it may be positioned on the lower frame assembly
(4) and may be actuated by a foot of a user or assistant and may be
remote. The swivel actuator (54a) may actuate the master cylinder
(54b) which in turn may pressurize the conduit line (54c) with
fluid (either gas or liquid). The fluid may actuate the swivel
cylinder (54d) which may include forcing the swivel piston (54e) to
a position that may then move the wrench (54f). The wrench (54f) as
shown in the present invention may pivot about pivot point (54g).
Near the opposite end of the pivot point (54g), the wrench may move
up and down on the rotatable element swivel axle (53e) from the
perspective of FIG. 2. The rotatable element swivel axle (53e) in
the present embodiment may have at least one swivel cam (54h), such
as a non-circular flat, which the wrench may engage at different
elevations. In the present embodiment, if the wrench, for instance,
is in a non-engaging position (54i), the rotatable elements may
turn about the axis (50) on the rotatable element swivel axle
(53e). However, if the swivel actuator (54a) is actuated, the
swivel piston (54e) may move the wrench (54f) in contact with the
swivel cam (54h) on the rotatable element swivel axle (53e) as to
reduce or prevent rotation. As shown in FIG. 2, in viewing multiple
cams about the rotatable element swivel axle (53e), the wrench may
prevent rotation at multiple angles about the second axis (50) as
the frame wheel axle assembly (55) turns about the second axis
(50). Also, similar to the braking system, the swivel lock system
may include a station or a plurality of stations. A swivel lock
system may be useful to the user when navigating side sloping
surfaces or early stages of gait training.
[0052] The device may even be provided with a system that will
allow the rotatable elements to be locked in place whenever it is
folded to a position within the envelope of the frame assembly.
Likewise, the present invention may use the cam (54i) and include a
logic system that swivel locks each rotatable elements or any
number of the rotatable elements automatically when the rotatable
elements are folded, such as when folded within the frame envelope,
regardless of whether the swivel actuator is actuated. As those
with knowledge in the art would understand, an accumulator may be
desired in each of the fluidic systems in order to better
accomplish this and may be useful for adding fluid capacity to the
fluidic systems.
[0053] FIG. 11 shows some assembled items within the frame wheel
repositionable support (52) described above, such as portions of
the braking assembly (53), swivel lock system (54), retainer (52c),
and a rotatable element (48). (To view the inside volume of the
frame wheel repositionable support (52) for purposes of
illustration, it is turned approximately 90 degrees from the actual
orientation that it would engage the lower frame assembly (4).)
Conduit lines (53c and 54c) are shown as part of the braking
assembly and swivel lock system. The conduit line (53c) could
actuate the brake shoe (53f) toward the rotatable element (48) to
brake against rotation. An isometric view of the wrench (54f) is
also shown, whereupon the wrench extends toward the swivel cam
(54h), shown in FIG. 2. As described above, the rotatable element
swivel axle (53e) in the present embodiment may have at least one
swivel cam (54h), with two being shown, which the wrench may engage
at different elevations. In the present embodiment, if the wrench,
for instance, is in a non-engaging position (54i), the rotatable
elements may turn about the axis (50) on the rotatable element
swivel axle (53e). However, if the swivel actuator (54a) is
actuated, the swivel piston inside the swivel cylinder (54d) may
move the wrench (54f), such as by causing it to pivot about pivot
point (54g), in such contact with the swivel cam (54h) on the
rotatable element swivel axle (53e) as to reduce or prevent
rotation. Also shown is a portion of the retainer (52c) extending
below the frame wheel repositionable support (52). The retainer
(52c) could engage the hole (54j) (or other aperture) on the lower
frame assembly (4) to restrain the frame wheel repositionable
support (52) from rotating about the frame assembly (4) until
disengaged, as described above.
[0054] When using the preferred embodiment of the present
invention, a step may include providing the frame assembly to a
user. The user or assistant might then position the user's pelvis
near a vertical pelvis support element. By moving at least one
horizontal pelvis support element connected to a frame assembly,
the user may have access to the vertical pelvis support element.
The user's pelvis might be positioned so that it is supported by
the vertical pelvis support element. Horizontally, the pelvis may
be supported primarily in a frontal plane at the anterior superior
iliac spine of the pelvis with a horizontal pelvis support element.
This may involve locating the horizontal pelvis support element
against the pelvis. Another aspect of the present invention may
include forcibly elevating the upper frame assembly to a
comfortable height for the user or to another appropriate height
that the user or the user's assistant may direct. To more fully
utilize the present invention, the support may be such that it
allows a full striding gait while accomplishing the support.
Furthermore, in supporting the pelvis, the invention may advantage
the horizontal pelvis support element or the vertical pelvis
support element with a mechanically or fluidicly advantaged system.
It may also be useful to provide rotatable elements that may be
individually or collectively braked, restricted from swiveling upon
actuation, or other restricted movements of the rotatable
elements.
[0055] Another advantage of the present invention may be seen in
providing a reduced, folded state of the device for increased
capabilities for transportation and storage. Generally, the various
adjustable elements, such as the horizontal pelvis support element,
could be lowered to a minimal position in the upper frame assembly
(6). The upper frame assembly (6) might be lowered by using the
elevation element (5) to a lower elevation corresponding to an
elevation of the lower frame assembly (4). This could include
reducing the overall fully extended height by at least 30 percent.
It could even include lowering the upper frame assembly so that it
was substantially at a similar elevation with the lower frame
assembly. This elevation could include, for instance, an elevation
such that the majority of the upper frame assembly was within a few
inches of the highest point of the lower frame assembly. For the
preferred embodiment, the upper frame assembly could be designed to
lower within the lower frame assembly envelope (such as between the
side-to-side dimensions of the lower frame assembly) to better
effectuate the folding, as shown in FIGS. 9 and 10. Furthermore, if
the embodiment is provided with rotatable elements, the rotatable
elements could be folded within the envelope created by the volume
of the frame assembly (1). The device could then be more easily
carried, transported, or stored.
[0056] Each of these support assistive embodiments could include
various facets of the present invention. Some may include rotatable
elements, while others may not include such elements. Some may
include varieties of elevation adjustments specific to the
elevation assembly or to the pelvis support elements. The market
place and manufacturing concerns may dictate the appropriate
embodiments for the present invention.
[0057] The foregoing discussion and the claims that follow describe
only the preferred embodiments of the present invention.
Particularly with respect to the claims, it should be understood
that a number of changes may be made without departing from the
essence of the present invention. In this regard, it is intended
that such changes--to the extent that they substantially achieve
the same results in substantially the same way--will still fall
within the scope of the present invention.
[0058] It is simply not practical to describe in the claims all the
possible embodiments to the present invention which may be
accomplished generally in keeping with the goals and objects of the
present invention and this disclosure and which may include
separately or collectively such aspects as supporting the pelvis in
specific areas such as the anterior superior iliac spine and
ischial tuberosities, the fluidicly actuated braking assembly
system, the multiple actuation tabs directly and independently
actuating a forcing element, and other aspects of the present
invention. While these may be added to explicitly include such
details, the existing claims should be construed to encompass such
aspects. To the extent the methods claimed in the present invention
are not further discussed, they are natural outgrowths of the
system or apparatus claims. Therefore, separate and further
discussion of the methods are deemed unnecessary as they otherwise
claim steps that are implicit in the use and manufacture of the
system or the apparatus claims. Furthermore, the steps are
organized in a more logical fashion, however, other sequences can
and do occur. Therefore, the method claims should not be construed
to include only the order of the sequence and steps presented.
* * * * *