U.S. patent application number 14/174654 was filed with the patent office on 2014-08-14 for overmould attachments for prosthetic foot.
This patent application is currently assigned to Ossur hf. The applicant listed for this patent is Ossur hf. Invention is credited to Ragnar Orn Gunnarsson, Christophe Guy Lecomte, Maria Guor n Sveinbjornsdottir.
Application Number | 20140228974 14/174654 |
Document ID | / |
Family ID | 51298007 |
Filed Date | 2014-08-14 |
United States Patent
Application |
20140228974 |
Kind Code |
A1 |
Lecomte; Christophe Guy ; et
al. |
August 14, 2014 |
OVERMOULD ATTACHMENTS FOR PROSTHETIC FOOT
Abstract
An attachment for a prosthetic foot comprising an attachment
surface that couples to the edges of a foot plate of a prosthetic
foot and an outer surface that functionally or cosmetically alters
the foot plate of the prosthetic foot in order to adapt the
prosthetic foot to the needs of the user. In another embodiment, a
toe attachment for a prosthetic foot comprising a cavity that can
receive the toe end of an elongate foot element of a prosthetic
foot, the toe attachment that can functionally or cosmetically
alter the elongate foot element in order to adapt the prosthetic
foot to the needs of the user. In yet another embodiment, a seal
cover that can removably engage a prosthetic foot and a cosmetic
cover for a prosthetic foot, resulting in a substantially
watertight connection between the seal cover and the prosthesis and
the seal cover and the cosmesis.
Inventors: |
Lecomte; Christophe Guy;
(Reykjavik, IS) ; Sveinbjornsdottir; Maria Guor n;
(Mosfellsbaet, IS) ; Gunnarsson; Ragnar Orn;
(Reykjavik, IS) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Ossur hf |
Reykjavik |
|
IS |
|
|
Assignee: |
Ossur hf
Reykjavik
IS
|
Family ID: |
51298007 |
Appl. No.: |
14/174654 |
Filed: |
February 6, 2014 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61764424 |
Feb 13, 2013 |
|
|
|
Current U.S.
Class: |
623/53 |
Current CPC
Class: |
A61F 2002/5027 20130101;
A61F 2002/5083 20130101; A61F 2002/6621 20130101; A61F 2/76
20130101; A61F 2002/5016 20130101; A61F 2002/503 20130101; A61F
2002/5001 20130101; A61F 2002/5024 20130101; A61F 2/66 20130101;
A61F 2002/6657 20130101 |
Class at
Publication: |
623/53 |
International
Class: |
A61F 2/66 20060101
A61F002/66 |
Claims
1-3. (canceled)
4. A prosthetic foot, comprising: an elongate foot member having a
distal toe end with a distal toe surface and a proximal ankle end,
the elongate foot member having a medial surface and a lateral
surface extending along a length of the elongate foot member; and
an attachment member coupleable to the elongate foot member along
an entire length of the attachment member, the attachment member
configured to attach to at least the distal toe surface and the
medial and lateral surfaces of the elongate foot member to alter a
shape of the prosthetic foot by increasing one or both of a width
and a length of at least a portion of the elongate foot member.
5. The prosthetic foot of claim 4, further comprising a heel member
disposed below the elongate foot member and extending to a proximal
heel end, wherein the attachment member does not attach to the heel
member.
6. The foot prosthesis of claim 4, wherein the attachment member
changes a stiffness characteristic of the elongate foot member.
7. The foot prosthesis of claim 4, wherein the attachment member
comprises a different material than the elongate foot member.
8. The foot prosthesis of claim 4, wherein at least one of the
medial and lateral surfaces of the elongate foot member extend
along a plane parallel to a longitudinal axis of the elongate foot
member along at least a portion of their length between the distal
toe end and the proximal ankle end, the attachment member
increasing a width of the elongate foot member and defining a
curved outer edge of the prosthetic foot when attached to the
elongate foot member.
9. The foot prosthesis of claim 4, wherein the attachment member is
coupleable to the elongate foot member along the entire length of
the elongate foot member.
10. The foot prosthesis of claim 4, wherein the attachment member
extends partially over at least one of a top surface and a bottom
surface of the elongate foot member when the attachment member is
coupled to the elongate foot member.
11. The foot prosthesis of claim 4, wherein the attachment member
comprises a distal portion coupleable to the distal toe surface of
the elongate foot member, the distal portion of the attachment
member having a split therein corresponding to a split in the
elongate foot member that divides the elongate foot member into a
medial portion and a lateral portion.
12. The foot prosthesis of claim 4, wherein the attachment member
is configured to clip to at least one of the medial and lateral
surfaces of the elongate foot member.
13. The foot prosthesis of claim 4, wherein the attachment member
comprises a distal portion attachable to the distal toe surface of
the elongate foot member, the distal portion of the attachment
member defining a slot configured to receive a strap of a sandal
when worn on the prosthetic foot.
14. The foot prosthesis of claim 4, wherein the attachment member
has a side profile that matches a profile of the elongate foot
member.
15. A prosthetic foot, comprising: an elongate foot member having a
distal toe end with a distal toe surface and a proximal ankle end,
the elongate foot member having a medial surface and a lateral
surface extending along a length of the elongate foot member; and
an attachment member coupleable to the elongate foot member, the
attachment member configured to attach to at least the distal toe
surface and the medial and lateral surfaces of the elongate foot
member to alter a shape of the prosthetic foot by increasing one or
both of a width and a length of at least a portion of the elongate
foot member, wherein the attachment member is coupleable to the
elongate foot member along the entire length of the elongate foot
member, wherein the attachment member has a side profile that
matches a profile of the elongate foot member.
16. The foot prosthesis of claim 15, wherein the attachment member
changes a stiffness characteristic of the elongate foot member.
17. The foot prosthesis of claim 15, wherein at least one of the
medial and lateral surfaces of the elongate foot member extend
along a plane parallel to a longitudinal axis of the elongate foot
member along at least a portion of their length between the distal
toe end and the proximal ankle end, the attachment member
increasing a width of the elongate foot member and providing a
curved outer edge to the prosthetic foot when attached to the
elongate foot member.
18. The foot prosthesis of claim 15, wherein the attachment member
extends partially over at least one of a top surface and a bottom
surface of the elongate foot member when the attachment member is
coupled to the elongate foot member.
19. The foot prosthesis of claim 15, wherein the attachment member
comprises a distal portion coupleable to the distal toe surface of
the elongate foot member, the distal portion of the attachment
member having a split therein corresponding to a split in the
elongate foot member that divides the elongate foot member into a
medial portion and a lateral portion.
20. The foot prosthesis of claim 15, wherein the attachment member
comprises a distal portion attachable to the distal toe surface of
the elongate foot member, the distal portion of the attachment
member defining a slot configured to receive a strap of a sandal
when worn on the prosthetic foot.
21. A prosthetic foot, comprising: an elongate foot member having a
toe end and an ankle end; and a toe attachment removably coupleable
to the elongate foot member and having a top surface, a bottom
surface, a distal end, a proximal end, the toe attachment defining
a slot therein and having a length shorter than a length of the
elongate foot member, wherein the toe attachment is configured to
removably couple solely to the toe end of the elongate foot member,
wherein the slot in the toe attachment extends from the top surface
to the bottom surface defining a medial lobe and a lateral lobe of
the removably coupleable toe attachment, the slot configured to
removably receive a strap of a sandal when said sandal is coupled
to the prosthetic foot.
22. The foot prosthesis of claim 21, wherein the slot is generally
U-shaped.
23. The foot prosthesis of claim 21, wherein the toe attachment is
attachable to at least the distal toe surface and the medial and
lateral surfaces of the elongate foot member to alter a shape of
the prosthetic foot by increasing a least one of a width and a
length of at least a portion of the elongate foot member.
24. The foot prosthesis of claim 21, wherein the medial lobe and
the lateral lobe of the toe attachment have different widths.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to U.S. Provisional
Application No. 61/764,424 filed Feb. 13, 2013, which is hereby
expressly incorporated in its entirety by reference herein and
should be considered a part of this specification.
BACKGROUND
[0002] 1. Field
[0003] Embodiments of the present invention relate to prosthetic
feet and overmould attachments and cosmetic covers for prosthetic
feet.
[0004] 2. Description of the Related Art
[0005] Prosthetic feet of different designs are well known in the
art. The various conventional designs have sought to solve various
limitations associated with prosthetic feet. One limitation
associated with prosthetic feet known in the art has to do with
manufacturing prosthetic feet having foot plates with varying
characteristics. Some of the possible variations of a foot plate
include width, length, thickness, shape, and stiffness.
Incorporating one or more of these variations into the design of a
prosthesis can result in a prosthesis with characteristics that are
desirable or beneficial for a particular user or a particular use.
However, incorporating these variations directly into the foot
plate during the manufacturing process can be expensive, time
consuming and result in waste of the production materials.
[0006] Accordingly, there is a need for an improved design that is
economically efficient to manufacture while still providing the
advantages to the user of having variations in the foot plate.
[0007] Another limitation associated with prosthetic feet known in
the art has to do with wear and tear on the prosthesis. Materials
typically used in the art to produce prosthetic feet, such as
carbon fiber, can be expensive and difficult to repair or replace.
During the course of use of a prosthetic foot, normal wear and tear
can result in undesirable cosmetic or structural damage to the foot
plate or any other element of the prosthesis. Such damage can be
very difficult or expensive to repair and can require that the
entire foot plate of the prosthesis be replaced.
[0008] Accordingly, there is a need for an improved design that
protects the foot plate from the damage associated with normal wear
and tear and allows for a damaged element or portion of the
prosthesis to be easily and economically repaired or replaced.
[0009] Yet another limitation associated with prosthetic feet known
in the art has to do with water and/or debris, such as dirt,
entering the cosmetic foot cover. This water and/or debris can be
difficult to clean out from the cosmetic cover and can cause
problems with the function of the cosmetic cover or prosthesis
therein. On the other hand, sealing the opening of a cosmetic cover
can limit the function of the ankle joint and make access for
manipulation or adjustment of the ankle very difficult.
[0010] Accordingly, there is a need for an improved foot cover or
foot cover attachment that can prevent water and/or debris from
entering the foot cover, but that will still allow for easy
adjustments and manipulation of the ankle and attachment or
adaptors,
SUMMARY
[0011] In accordance with one embodiment disclosed herein, a
prosthetic foot comprising at least one foot plate that can be
coupled to an attachment is provided. The foot plate has a toe end,
an ankle end, a toe surface or edge, an ankle surface or edge,
medial and lateral side surfaces or edges, a top surface, and a
bottom surface. The foot plate can be made of carbon fiber or any
other material used in the art to manufacture foot plates for
prosthetic feet. The foot plate can be generally straight, or it
can be curved between the toe end and the ankle end such that the
toe end is substantially horizontal while the ankle end is
substantially vertical. The foot plate can be coupled to an
attachment at the toe end, wherein the attachment extends at least
partially along the length of the side surfaces from the toe end
toward the ankle end. In some embodiments, the attachment extends
all the way along the side surfaces wherein it is also coupled to
the ankle surface. In embodiments in which the foot plate is curved
and the attachment extends along the sides to at least the portion
where the foot plate is curved, the portion of the attachment along
the side surfaces will also curve to match the side surfaces. The
foot plate can be coupled to an attachment that can extend at least
partially over the top surface and/or at least partially over the
bottom surface of the foot plate. In some embodiments, the
prosthetic foot can have a heel plate connected to the bottom
surface of the foot plate and extending away from the toe end of
the foot plate.
[0012] The foot plate can be removably coupled to the attachment.
The foot plate can be coupled to the attachment using at least one
clip mechanism, a series of clips, glue or epoxy, magnetic force,
elastic properties of the attachment (e.g., press-fit connection)
and/or any other coupling mechanism known in the art. In some
embodiments, the attachment is not coupled with or in contact with
the heel plate.
[0013] The attachment can alter the shape of the foot plate such
that the altered shape of the foot plate is more similar to the
shape of a natural human foot. Alternatively, the altered shape of
the foot plate can provide the prosthetic foot and its user with
other functional or cosmetic benefits. For example, the altered
shape of the foot plate can aid in fitting the prosthesis into a
foot cover or shoe.
[0014] In some embodiments, the foot plate has a lengthwise split
beginning at the toe end of the foot plate and traversing at least
part of the length of the foot plate that divides the foot plate
resulting in a medial portion and a lateral portion. In some
embodiments, the lengthwise split does not span the entire length
of the foot plate, and thus the medial and lateral portions join
into a singular foot plate at some point between the toe end and
the ankle end of the foot plate. In some embodiments, the
attachment will have a corresponding split at the toe end. The
split in the foot plate and the attachment allow the medial and
lateral portions to flex at least somewhat independently, improving
functional properties of the prosthetic foot during rollover.
[0015] In accordance with another embodiment disclosed herein, a
prosthetic foot with a foot plate that can receive a coupleable toe
attachment at the toe end of the foot plate is provided. The foot
plate has a toe end, an ankle end, a toe surface, an ankle surface,
medial and lateral side surfaces, a top surface, and a bottom
surface. The foot plate can be made of carbon fiber or any other
material used in the art to manufacture foot plates for prosthetic
feet. The foot plate can be straight, or it can be curved between
the toe end and the ankle end such that the toe end is
substantially horizontal while the ankle end is substantially
vertical. The ankle end of the foot plate can attach to an adaptor
or a residual limb. The foot plate has sides that are substantially
straight resulting in a more economical and efficient manufacturing
process. The foot plate is manufactured to a standard size
resulting in a more economical and efficient manufacturing
process.
[0016] The foot plate can be coupled at the toe end to a toe
attachment that extends at least partially over the top surface and
at least partially over the bottom surface of the foot plate. The
foot plate can be removably coupled to the toe attachment, the toe
attachment having a cavity that can receive the toe end of the foot
plate. The toe attachment alters the shape of the foot plate such
that the altered shape of the foot plate is more similar to the
shape of a natural human foot. The altered shape of the foot plate
can aid in fitting the prosthesis into a foot cover or shoe.
[0017] In accordance with another embodiment, an overmould
attachment that is coupleable to a foot plate of a prosthetic foot
is provided. The overmould attachment is coupled to the toe end or
toe surface of the foot plate, and at least partially along the
medial and lateral side surfaces of the foot plate. In some
embodiments, the attachment extends along the entire length of the
side surfaces and at least partially onto an ankle surface of the
foot plate. The attachment is removably coupleable to a prosthetic
foot. The attachment is made out of polymer or a plastic-like
material or a compressible material. In other embodiments, the
attachment is made of any material used in the art. The attachment
can alter the stiffness or thickness characteristics of the foot
plate.
[0018] The attachment alters the cosmetic appearance of the
prosthetic foot and protects the prosthetic foot from wear and
tear. The attachment can be coupled to a prosthetic foot without
altering any fit adjustments made to the prosthetic foot. In some
embodiments, the attachment alters the shape of the foot plate such
that the altered shape of the foot plate is more similar to the
shape of a natural human foot. Alternatively, the altered shape of
the foot plate can provide the prosthetic foot and the user with
other functional or cosmetic benefits. For example, the altered
shape of the foot plate can aid in fitting the prosthesis into a
foot cover or shoe.
[0019] In accordance with another embodiment disclosed herein, an
overmould attachment that includes an extended portion at the toe
end of the foot plate is provided. The extended portion includes a
cutout section resulting in a medial lobe and a lateral lobe. The
cutout is generally U-shaped. The respective widths of the medial
and lateral lobes result in a stiffness for the medial and lateral
lobes, wherein varying the widths of the medial and lateral lobes
results in varying the stiffness of the medial and lateral lobes.
The characteristics of the medial and lateral lobes can result in
improved rollover during use of the prosthetic coupled to the
attachment. Additionally, the extended portion can aid in fitting
the prosthesis into a foot cover or shoe.
[0020] In accordance with another embodiment disclosed herein, a
prosthetic foot is provided. The prosthetic foot comprises an
elongate foot member having a distal toe end with a distal toe
surface, a proximal ankle end, and medial and lateral surfaces
extending along a length of the elongate foot member. The
prosthetic foot also comprises an attachment member coupleable to
the elongate foot member along an entire length of the attachment
member. The attachment member is configured to attach to at least
the distal toe surface and the medial and lateral surfaces of the
elongate foot member to alter a shape of the prosthetic foot by
increasing one or both of a width and a length of at least a
portion of the elongate foot member.
[0021] In accordance with another embodiment disclosed herein, a
prosthetic foot is provided. The prosthetic foot comprises an
elongate foot member having a distal toe end with a distal toe
surface, a proximal ankle end, and medial and lateral surfaces
extending along a length of the elongate foot member. The
prosthetic foot also comprises an attachment member coupleable to
the elongate foot member along the entire length of the attachment
member. The attachment member is configured to attach to at least
the distal toe surface and the medial and lateral surfaces of the
elongate foot member and can alter the shape of the prosthetic foot
by increasing one or both of a width and a length of at least a
portion of the elongate foot member. The attachment member has a
side profile that matches a profile of the elongate foot
member.
[0022] In accordance with yet another embodiment disclosed herein,
a coupleable toe attachment for use with a prosthetic foot is
provided. The toe attachment is removably coupleable to a
prosthetic foot. The toe attachment further includes a cutout
section that divides the top surface and bottom surface into a
medial lobe and a lateral lobe. The cutout is generally U-shaped.
The cutout, resulting in a medial and lateral lobe, gives the toe
attachment a more anatomical or a "sandal toe" appearance. The
respective widths of the medial and lateral lobes result in a
stiffness for the medial and lateral lobes, wherein varying the
widths of the medial and lateral lobes results in varying the
stiffness of the medial and lateral lobes. Additionally, the toe
attachment can aid in fitting the prosthesis into a foot cover or
shoe.
[0023] The toe attachment can have a cavity that can receive the
toe end of foot plate of a prosthetic foot, such that the toe end
of a foot plate fits inside the cavity. In some embodiments, at
least part of the cavity extends all the way through the toe
attachment. The toe attachment is coupled to a foot plate of a
prosthetic foot using clips, glue or epoxy, magnetic force, and/or
any other coupling mechanism known in the art.
[0024] In accordance with another embodiment disclosed herein, a
prosthetic foot is provided. The prosthetic foot comprises an
elongate foot member having a toe end and an ankle end. The
prosthetic foot also comprises a toe attachment removably
coupleable solely to the toe end of the elongate foot member. The
toe attachment has a top surface, a bottom surface, a distal end, a
proximal end, the toe attachment defining a slot therein and having
a length shorter than a length of the elongate foot member. The
slot in the toe attachment extends from the top surface to the
bottom surface defining a medial lobe and a lateral lobe of the toe
attachment. The slot is configured to removably receive a strap of
a sandal when said sandal is coupled to the prosthetic foot.
[0025] In accordance with another embodiment disclosed herein, a
seal cover for a cosmetic cover for a prosthetic foot is provided.
Viewed from above, the seal cover generally has the shape of the
cross-section of a human ankle or of the opening of a cosmetic
cover for a prosthetic foot. The seal cover has an outer portion
and an inner portion. The inner portion and the outer portion are
made of different materials. The outer portion is a frame made of a
plastic or plastic-like material. The inner portion is a membrane
made of an elastic or flexible material. The top surface of the
outer portion is substantially flat. The bottom surface can have
two concentric lips that run substantially parallel to the
perimeter of the outer surface that can removably engage the
opening of a cosmetic cover for a prosthetic foot after a
prosthetic foot has been inserted into the cosmetic cover, creating
a substantially watertight connection between the outer portion and
the cosmetic cover.
[0026] The inner portion can include a membrane made of a flexible
material, such as rubber or elastic, and has a circular O-ring
opening that can engage a pyramid adaptor or foot plate or shank or
pylon of a prosthetic foot system, creating a substantially
watertight connection between the inner portion and the prosthetic
foot system. In some embodiments, a collar adaptor can be placed on
the prosthetic foot system that has a groove to receive the
circular opening of the inner portion of the seal cover.
[0027] In accordance with another embodiment disclosed herein, a
seal cover for a cosmetic cover for a prosthetic foot. Viewed from
above, the seal cover generally has the shape of the cross-section
of a human ankle or of the opening of a cosmetic cover for a
prosthetic foot. The seal has an outer portion and an inner
portion. The inner portion and the outer portion are made of
different materials. The outer portion is a frame made of a plastic
or plastic-like material. The inner portion is a membrane made of
an elastic or flexible material. The top surface of the outer
portion is substantially flat. The bottom surface of the outer
portion of the seal cover engages the rim at the opening of the
cosmetic cover after a prosthetic foot has been inserted into the
cosmetic cover using a series of hooked protrusions or teeth that
can removably engage complementary cavities in the rim of the
cosmetic cover in order to facilitate the engagement of the seal
cover to the cosmetic cover. Additionally, glue or epoxy can be
used along the points of attachment to further improve engagement
of the seal cover to the cosmetic cover.
[0028] The inner portion is a membrane made of a flexible material,
such as rubber or elastic, and has a circular O-ring opening that
can engage a pyramid adaptor or foot plate or shank or pylon of a
prosthetic foot system, creating a substantially watertight
connection between the inner portion and the prosthetic foot
system. In some embodiments, a collar adaptor can be placed on the
prosthetic foot system that has a groove to receive the circular
opening of the inner portion of the seal cover.
BRIEF DESCRIPTION OF THE DRAWINGS
[0029] FIG. 1 is a partial side, top and front profile view of one
embodiment of an overmould attachment coupled to a prosthetic
foot.
[0030] FIG. 2 is a partial side, top and front profile view of the
prosthetic foot in FIG. 1 that can be coupled to an overmould
attachment and an overmould attachment that can be coupled to a
prosthetic foot, with the prosthetic foot and the overmould
separated.
[0031] FIG. 3 is a front profile view of the overmould attachment
coupled to the prosthetic foot of FIG. 1.
[0032] FIG. 4 is a top plan view of the overmould attachment
coupled to the prosthetic foot of FIG. 1.
[0033] FIG. 5 is a bottom plan view of the overmould attachment
coupled to the prosthetic foot of FIG. 1.
[0034] FIG. 6 is a partial side, top and front profile view of
another embodiment of an overmould attachment coupled to a
prosthetic foot.
[0035] FIG. 7 is a partial side, top and front profile view of the
prosthetic foot in FIG. 6 that can be coupled to an overmould
attachment and an overmould attachment that can be coupled to a
prosthetic foot, with the prosthetic foot and the overmould
separated.
[0036] FIG. 8 is a side profile view of the overmould attachment
coupled to the prosthetic foot of FIG. 6.
[0037] FIG. 9 is a top plan view of the overmould attachment
coupled to the prosthetic foot of FIG. 6.
[0038] FIG. 10 is a partial side, top and front profile view of yet
another embodiment of an overmould attachment coupled to a
prosthetic foot.
[0039] FIG. 11 is a partial side, top and front profile view of the
prosthetic foot of FIG. 10 that can be coupled to an overmould
attachment and an overmould attachment that can be coupled to a
prosthetic foot, with the prosthetic foot and the overmould
separated.
[0040] FIG. 12 is a top plan view of the overmould attachment
coupled to the prosthetic foot of FIG. 10.
[0041] FIG. 13 is a bottom plan view of the overmould attachment
coupled to the prosthetic foot of FIG. 10.
[0042] FIG. 14 is a partial side, top and front profile view of one
embodiment of a toe attachment coupled to a prosthetic foot
plate.
[0043] FIG. 15 is a partial side, top and front profile view of the
prosthetic foot plate of FIG. 14 that can be coupled to a toe
attachment and a toe attachment that can be coupled to a prosthetic
foot plate, with the foot plate and the toe attachment
separated.
[0044] FIG. 16 is a top plan view of one embodiment of the toe
attachment in FIG. 15.
[0045] FIG. 17 is a partial rear, side, and top profile view of the
toe attachment in FIG. 15, showing one embodiment of a cavity that
can receive a prosthetic foot plate.
[0046] FIG. 18 is a partial rear, side, and bottom profile view of
the toe attachment of FIG. 15, showing one embodiment of a cavity
that can receive a prosthetic foot plate.
[0047] FIG. 19 is a rear profile view of the toe attachment of FIG.
15, showing one embodiment of a cavity that can receive a
prosthetic foot plate.
[0048] FIG. 20 is a side profile view of the toe attachment of FIG.
15.
[0049] FIG. 21 is a partial side, top and front profile view of one
embodiment of a seal cover for a prosthetic foot.
[0050] FIG. 22 is a top plan view of the seal cover of FIG. 21.
[0051] FIG. 23 is a bottom plan view of the seal cover of FIG.
21.
[0052] FIG. 24 is a side profile view of the seal cover of FIG.
21.
[0053] FIG. 25A is a cross-sectional view of the seal cover of FIG.
21, as viewed along plane 25-25 in FIG. 22.
[0054] FIG. 25B is a cross-sectional view of one embodiment of the
seal cover of FIG. 21 engaged with a cosmetic cover and a
prosthetic foot system.
[0055] FIG. 26 is a partial side, top and front profile view of
another embodiment of a seal cover for a prosthetic foot.
[0056] FIG. 27 is a top plan view of the seal cover of FIG. 26.
[0057] FIG. 28 is a bottom plan view of the seal cover of FIG.
26.
[0058] FIG. 29 is a side profile view of the seal cover of FIG.
26.
[0059] FIG. 30 is a cross-sectional view the seal cover of FIG. 26,
as viewed along plane 30-30 in FIG. 27.
[0060] FIG. 31 is a partial side, top and front profile view of one
embodiment of a collar adaptor.
[0061] FIG. 32 is a partial side, top and front profile view of one
embodiment of a seal cover for a prosthetic foot.
[0062] FIG. 33 is a top plan view of the seal cover of FIG. 32.
[0063] FIG. 34 is a bottom plan view of the seal cover of FIG.
32.
[0064] FIG. 35 is a side profile view of the seal cover of FIG.
32.
[0065] FIG. 36 is a cross-sectional view of the seal cover of FIG.
32, as viewed along plane 36-36 in FIG. 33.
[0066] FIG. 37 is a cross-sectional view of one embodiment of the
seal cover of FIG. 32 engaged with a cosmetic cover and a
prosthetic foot system.
DETAILED DESCRIPTION
[0067] FIGS. 1-5 illustrate one embodiment of an overmould
attachment 10 coupleable to a foot plate 40 of a prosthetic foot
100. The foot plate 40 generally can have a toe end 42 and an ankle
end 44, as well as a toe surface or edge 46, an ankle surface or
edge 48, and medial and lateral side surfaces or edges 50 extending
from the toe surface 46 to the ankle surface 48. In one embodiment,
the medial and/or lateral side surfaces or edges 50 extend
generally linearly (e.g., do not curve outward in a transverse
direction to the longitudinal axis of the foot 100), or the foot
plate 40 is generally planar, between the toe end 42 and the ankle
end 44 along at least a portion of their length. In another
embodiment, the medial and or lateral side surfaces or edges 50
extend in a generally curved manner (e.g., curved in the
medial-lateral direction and/or curved in the anterior-posterior
direction) along at least a portion of their length between the toe
end 42 and the ankle end 44. The foot plate 40 can also have a top
surface 52 and a bottom surface 54 opposite the top surface 52. In
some embodiments, the overmould attachment 10 is coupled to at
least the toe surface 46 of the foot plate 40 of the prosthetic
foot 100. In one embodiment, the overmould attachment 10 can be
removably coupled to the foot plate 40 of the prosthetic foot 100.
In some embodiments, as seen in FIG. 1, the overmould attachment 10
is coupled to the toe surface 46 and all along the entire length of
the side surfaces 50 of the foot plate 40. In some embodiments, as
shown in FIGS. 1, 3 and 4, at the ankle surface 48 of the foot
plate 40, the overmould attachment 10 has portions 12 that extend
at least partially over the ankle surface 48 of the foot plate 40.
In some embodiments, the portions 12 of the overmould attachment 10
that extend at least partially over the ankle surface 48 help to
couple the overmould attachment 10 to the foot plate 40. In some
embodiments, the overmould attachment 10 extends at least partially
over the top surface 52 of the foot plate and at least partially
over the bottom surface 54 of the foot plate. In some embodiments,
the overmould attachment 10 extends at least partially over the top
surface 52 of the foot plate. In some embodiments, the overmould
attachment 10 extends at least partially over the bottom surface 54
of the foot plate. In some embodiments, the prosthetic foot 100 can
have a heel plate 70 disposed below (e.g., coupled to) the bottom
surface 54 of the foot plate 40, extending away from the toe end
42. In one embodiment, the overmould attachment 10 is not coupled
to the heel plate 70. In some embodiments, the overmould attachment
10 does not contact the heel plate 70.
[0068] In some embodiments, the foot plate 40 has a lengthwise
split 56, beginning at the toe end 42 of the foot plate and
extending at least part of the length of the foot plate 40, that
divides the foot plate 40, resulting in a medial portion 58 and a
lateral portion 60. In some embodiments, the lengthwise split 56
does not span the entire length of the foot plate 40, resulting in
an undivided foot plate at the ankle end 44 of the foot plate 40.
In some embodiments, the overmould attachment 10 will have a
corresponding split 14 at the toe end 42. The splits 56 and 14 in
the foot plate 40 and the overmould attachment 10 allow the medial
and lateral portions 58 and 60 to flex at least somewhat
independently, improving functional properties of the prosthetic
foot during rollover or during use on different surfaces (e.g., on
uneven terrain).
[0069] In one embodiment, as shown in FIG. 4, the overmould
attachment 10 advantageously changes the shape of the foot plate
40. In some embodiments, the overmould attachment 10 changes the
width of the foot plate 40. In some embodiments, the overmould
attachment 10 changes the length of the foot plate 40. In some
embodiments, the overmould attachment 10 advantageously changes the
shape of the foot plate 40 to make it more like the shape of a
natural human foot (e.g., to include a sandal toe slot). In some
embodiments, the overmould attachment 10 advantageously changes the
shape of the foot plate 40 to improve stability characteristics of
the prosthetic foot 100. In some embodiments, the overmould
attachment 10 advantageously changes the shape of the prosthetic
foot 100 to improve functional characteristics of the prosthetic
foot 100 during rollover. In some embodiments, the altered shape of
the foot plate 40 allows the prosthetic foot 100 to be used with a
shoe or other footwear without needing a cosmetic cover over.
[0070] In one embodiment, the overmould attachment 10 shown in
FIGS. 1-5 removably couples to a foot plate 40 of a prosthetic foot
100. In some embodiments, the overmould attachment 10 is coupled or
removably coupled to the foot plate 40 using at least one clip
mechanism. In some embodiments, the overmould attachment 10 is
coupled or removably coupled to the foot plate 40 using a series of
clips. In other embodiments, the overmould attachment 10 is coupled
or removably coupled to the foot plate 40 using glue or epoxy. In
other embodiments, the overmould attachment 10 is coupled or
removably coupled to the foot plate 40 using magnetic force. In
other embodiments, the overmould attachment 10 is coupled to the
foot plate 40 using a series of complementary magnets located at
corresponding locations of the overmould attachment 10 and the foot
plate 40. In still other embodiments, the overmould attachment 10
is coupled to the foot plate 40 using elastic properties of at
least one part of the overmould attachment 10. In some embodiments,
the overmould attachment 10 is coupled to the foot plate 40 using
any method of coupling known in the art. In some embodiments, the
overmould attachment 10 is coupled to the foot plate 40 using any
combination of any of the aforementioned coupling mechanisms.
[0071] In some embodiments, the overmould attachment 10 is made of
a polymer or plastic-like material or a compressible material. In
some embodiments, the overmould attachment 10 is the same stiffness
as the foot plate 40. In some embodiments, the overmould attachment
10 is cheaper and easier to manufacture than the foot plate 40. In
some embodiments, the overmould attachment 10 protects the foot
plate 40 of the prosthetic foot 100 from damage due to everyday
wear and tear.
[0072] FIGS. 6-9 illustrate another embodiment of an overmould
attachment 210 coupleable to a foot plate 240 of a prosthetic foot
200. The foot plate 240 generally can have a toe end 242 and an
ankle end 244, as well as a toe surface or edge 246, an ankle
surface or edge 248, and medial and lateral side surfaces or edges
250 extending from the toe surface 246 to the ankle surface 248. In
one embodiment, the medial and/or lateral side surfaces or edges
250 extend generally linearly between the toe end 242 and the ankle
end 244 along at least a portion of their length. In another
embodiment, the medial and or lateral side surfaces or edges 250
extend in a generally curved manner along at least a portion of
their length between the toe end 242 and the ankle end 244. The
foot plate 240 can also have a top surface 252 and a bottom surface
254 opposite the top surface 252. In this embodiment, the overmould
attachment 210 is coupled to the toe surface 246 of the foot plate
240 and along the side surfaces 250 of the foot plate 240 until
about the portion 262 of the foot plate 240 where the foot plate
240 curves. In some embodiments, the overmould attachment 210 would
extend along the side surfaces 250 of the foot plate 240 past the
curved portion 262, with the overmould attachment 210 curving to
match the curve of the side surfaces 250. In other embodiments, the
overmould attachment would extend along the side surfaces 250 of
the foot plate and stop before the curved portion 262. In some
embodiments, the overmould attachment 210 extends at least
partially over the top surface 252 of the foot plate 240 and at
least partially over the bottom surface 254 of the foot plate 240.
In some embodiments, the overmould attachment 210 extends at least
partially over the top surface 252 of the foot plate 240. In some
embodiments, the overmould attachment 210 extends at least
partially over the bottom surface 254 of the foot plate 240. In
some embodiments, the prosthetic foot 200 can have a heel plate 270
disposed below (e.g., coupled to) the bottom surface 254 of the
foot plate 240, extending away from the toe end 242. In one
embodiment, the overmould attachment 10 is not coupled to the heel
plate 270. In some embodiments, the overmould attachment 10 does
not contact the heel plate 270.
[0073] In some embodiments, the foot plate 240 has a lengthwise
split 256, beginning at the toe end 242 of the foot plate and
extending at least part of the length of the foot plate 240, that
divides the foot plate 240, resulting in a medial portion 258 and a
lateral portion 260. In some embodiments, the lengthwise split 256
does not span the entire length of the foot plate, resulting in an
undivided foot plate at the ankle end 244 of the foot plate 240. In
some embodiments, the attachment 210 will have a corresponding
split 214 at the toe end 242. The splits 256 and 214 in the foot
plate 240 and the overmould attachment 210 allow the medial and
lateral portions 258 and 260 to flex at least somewhat
independently, improving functional properties of the prosthetic
foot during rollover and to accommodate use of the foot on
different terrain.
[0074] In one embodiment, as seen in FIG. 9, the overmould
attachment 210 advantageously changes the shape of the foot plate
240. In some embodiments, the overmould attachment 210 changes the
width of the foot plate 240. In some embodiments, the overmould
attachment 210 changes the length of the foot plate 240. In some
embodiments, the overmould attachment 210 advantageously changes
the shape (e.g., contour) of the foot plate 240 to make it more
like the shape of a natural human foot (e.g., to include a sandal
toe slot). In some embodiments, the overmould attachment 210
advantageously changes the shape of the foot plate 240 to improve
stability characteristics of the prosthetic foot 200 (e.g., by
making the foot wider). In some embodiments, the overmould
attachment 210 advantageously changes the shape of the foot plate
240 to improve functional characteristics of the prosthetic foot
200 during rollover. In some embodiments, the altered shape of the
foot plate 240 allows the prosthetic foot 200 to be used with a
shoe or other footwear without needing a cosmetic cover over.
[0075] In one embodiment, the overmould attachment 210 shown in
FIGS. 6-9 can be removably coupled to a foot plate 240 of a
prosthetic foot 200. In some embodiments, the overmould attachment
210 is coupled or removably coupled to the foot plate 240 using at
least one clip mechanism. In some embodiments, the overmould
attachment 210 is coupled or removably coupled to the foot plate
240 using a series of clips. In other embodiments, the overmould
attachment 210 is coupled or removably coupled to the foot plate
240 using glue or epoxy. In other embodiments, the overmould
attachment 210 is coupled or removably coupled to the foot plate
240 using magnetic force. In other embodiments, the overmould
attachment 210 is coupled to the foot plate 240 using a series of
complementary magnets located at corresponding locations of the
overmould attachment 210 and the foot plate 240. In still other
embodiments, the overmould attachment 210 is coupled to the foot
plate 240 using elastic properties of at least one part of the
overmould attachment 210. In some embodiments, the overmould
attachment 210 is coupled to the foot plate 240 using any method of
coupling known in the art. In some embodiments, the overmould
attachment 210 is coupled to the foot plate 240 using any
combination of any of the aforementioned coupling mechanisms.
[0076] In some embodiments, the overmould attachment 210 is made of
a polymer or plastic-like material or a compressible material. In
some embodiments, the overmould attachment 210 is the same
stiffness as the foot plate 240. In some embodiments, the overmould
attachment 210 is cheaper and easier to manufacture than the foot
plate 240. In some embodiments, the overmould attachment 210
protects the foot plate 240 of the prosthetic foot 200 from damage
due to everyday wear and tear.
[0077] FIGS. 10-13 illustrate another embodiment of an overmould
attachment 310 coupleable to a foot plate 340 of a prosthetic foot
300. The foot plate 340 generally can have a toe end 342 and an
ankle end 344, as well as a toe surface 346, an ankle surface 348,
and medial and lateral side surfaces 350 extending from the toe
surface 346 to the ankle surface 348. In one embodiment, the medial
and/or lateral side surfaces or edges 350 extend generally linearly
between the toe end 342 and the ankle end 344 along at least a
portion of their length. In another embodiment, the medial and or
lateral side surfaces or edges 350 extend in a generally curved
manner along at least a portion of their length between the toe end
342 and the ankle end 344. The foot plate 340 can have a top
surface 352 and a bottom surface 354 opposite the top surface 352.
Like the embodiments shown in FIGS. 1-5 and FIGS. 6-9, the
embodiment of an overmould attachment 310 shown in FIGS. 10-13 is
coupled or removably coupled to the toe surface 346 of foot plate
340 and along the side surfaces 350 of the foot plate 340 of a
prosthetic foot 300. In one embodiment, the overmould attachment
310 is coupled or removably coupled along the entire side surfaces
350 of the foot plate 340. In some embodiments, as shown in FIGS.
10 and 12, at the ankle surface 346 of the foot plate 340, the
overmould attachment 310 has portions 312 that extend at least
partially over the ankle surface 348 of the foot plate 340. In some
embodiments, the portions 312 of the overmould attachment 310 that
extend at least partially over the ankle surface 348 help to couple
the overmould attachment 310 to the foot plate 340. In some
embodiments, the overmould attachment 310 extends at least
partially over the top surface 352 of the foot plate 340 and at
least partially over the bottom surface 354 of the foot plate 340.
In some embodiments, the overmould attachment 310 extends at least
partially over the top surface 352 of the foot plate 340. In some
embodiments, the overmould attachment 310 extends at least
partially over the bottom surface 354 of the foot plate 340. In
some embodiments, the prosthetic foot 300 can have a heel plate
370, connected to the bottom surface 354 of the foot plate 340,
extending away from the toe end 342. In one embodiment, the
overmould attachment 10 is not coupled to the heel plate 370. In
some embodiments, the overmould attachment 10 does not contact the
heel plate 370.
[0078] In some embodiments, the foot plate 340 has a lengthwise
split, 356 beginning at the toe end 342 of the foot plate and
extending at least part of the length of the foot plate 340, that
divides the foot plate 340, resulting in a medial portion 358 and a
lateral portion 360. In some embodiments, the lengthwise split 356
does not span the entire length of the foot plate, resulting in an
undivided foot plate at the ankle end 344 of the foot plate 340. In
some embodiments, the attachment 310 can have a corresponding split
(not shown) at the toe end 342. The splits in the foot plate and
the attachment can allow the medial and lateral portions 358 and
360 to flex at least somewhat independently, improving functional
properties of the prosthetic foot during rollover and when used on
uneven terrain.
[0079] In one embodiment, as seen in FIGS. 10, 12 and 13, the
overmould attachment 310 is a single piece that advantageously
changes the shape of the foot plate 340. In some embodiments,
including the embodiment shown in FIGS. 10, 12 and 13, the
overmould attachment 310 includes a portion 314 that extends the
length of the toe of the foot plate 340, wherein the extended
portion 314 includes a cutout section 316 that divides the extended
portion 314 into a medial lobe 318 and a lateral lobe 320. In some
embodiments, the cutout or slot 316 is generally U-shaped and sized
to receive a strap of a sandal, flip-flop or similar footwear
(e.g., the slot 316 provides a sandal toe feature). In some
embodiments, both the medial lobe 318 and lateral lobe 320 can have
a width. In some embodiments, the lateral lobe 320 has a width
greater than the width of the medial lobe 318. In other
embodiments, the medial lobe 318 has a width greater than the width
of the lateral lobe 320. In still other embodiments, the medial
lobe 318 and lateral lobe 320 have equal or approximately equal
widths (e.g., the slot 316 can be located generally midway along
the width of the foot 300). In some embodiments, the respective
widths of the medial lobe 318 and lateral lobe 320 result in a
stiffness for the medial lobe 318 and lateral lobe 320, wherein
varying the widths of the medial lobe 318 and lateral lobe 320
results in varying the stiffness of the medial lobe 318 and lateral
lobe 320. In some embodiments, the characteristics of the medial
lobe 318 and lateral lobe 320 result in improved rollover during
use of the prosthetic foot 300 coupled to the overmould attachment
310.
[0080] In some embodiments, this extended portion 314 including a
cutout 316 allows the user to use the prosthetic foot 300 in
combination with sandal-type shoes or other types of footwear
without also having to use a cosmetic foot cover. In some
embodiments, the overmould attachment 310 changes the width of the
foot plate 340. In some embodiments, the overmould attachment 310
changes the length of the foot plate 340. In some embodiments, the
overmould attachment 310 advantageously changes the shape of the
foot plate 340 to make it more like the shape of a natural human
foot (e.g., to include a sandal toe slot). In some embodiments, the
overmould attachment 310 advantageously changes the shape of the
foot plate 340 to improve stability characteristics of the
prosthetic foot 300. In some embodiments, the overmould attachment
310 advantageously changes the shape of the foot plate 340 to
improve functional characteristics of the prosthetic foot 300
during rollover.
[0081] In one embodiment, the overmould attachment 310 shown in
FIGS. 10-13 can be removably coupled to a foot plate 340 of a
prosthetic foot 300. In some embodiments, the overmould attachment
310 is coupled or removably coupled to the foot plate 340 using at
least one clip mechanism. In some embodiments, the overmould
attachment 310 is coupled or removably coupled to the foot plate
340 using a series of clips. In other embodiments, the overmould
attachment 310 is coupled or removably coupled to the foot plate
340 using glue or epoxy. In other embodiments, the overmould
attachment 310 is coupled or removably coupled to the foot plate
340 using magnetic force. In other embodiments, the overmould
attachment 310 is coupled to the foot plate 340 using a series of
complementary magnets located at corresponding locations of the
overmould attachment 310 and foot plate 340. In still other
embodiments, the overmould attachment 310 is coupled to the foot
plate 340 using elastic properties of at least one part of the
overmould attachment 310. In some embodiments, the overmould
attachment 310 is coupled to the foot plate 340 using any method of
coupling known in the art. In some embodiments, the overmould
attachment 310 is coupled to the foot plate 340 using any
combination of any of the aforementioned coupling mechanisms.
[0082] In some embodiments, the overmould attachment 310 is made of
a polymer or plastic-like material or a compressible material. In
some embodiments, the overmould attachment 310 is the same
stiffness as the foot plate 340. In some embodiments, the overmould
attachment 310 is cheaper and easier to manufacture than the foot
plate 340. In some embodiments, the overmould attachment 310
protects the foot plate 340 of the prosthetic foot 300 from damage
due to everyday wear and tear.
[0083] FIGS. 14-20 illustrate one embodiment of a toe attachment
410 coupleable to a foot plate 440 of a prosthetic foot 400. The
foot plate 440 can be generally planar (e.g., generally flat) and
have a toe end 442 and an ankle end 444, as well as a toe surface
446, an ankle surface 448, and medial and lateral side surfaces 450
extending from the toe surface 446 to the ankle surface 448. In the
embodiment shown in FIG. 14, the toe attachment 410 is coupled to
the toe end 442 of a foot plate 440 for a prosthetic foot 400. In
some embodiments, the toe attachment 410 is removably coupleable to
the foot plate 440. In some embodiments, the toe attachment 410 can
have a cavity 412 on a rear surface 414, shown in FIGS. 17-19,
wherein the cavity can receive the toe end 442 of a foot plate 440
such that the toe attachment 410 is coupled or removably coupled to
the toe end 442 of the foot plate 440. In some embodiments, the toe
attachment 410 is coupled or removably coupled to a foot plate 440
using at least one clip. In some embodiments, the toe attachment
410 is coupled or removably coupled to a foot plate 440 using glue
or epoxy. In still another embodiment, the toe attachment 410 is
coupled or removably coupled to a foot plate 440 using magnetic
force. In some embodiments, the toe attachment 410 is coupled to
the foot plate 440 using any method of coupling known in the art.
In some embodiments, the toe attachment 410 is coupled to the foot
plate 440 using any combination of any of the aforementioned
coupling mechanisms.
[0084] In some embodiments, the toe attachment 410 can have a top
surface 418 and a bottom surface 420. In some embodiments, the top
surface 418 and the bottom surface 420 are substantially parallel.
In some embodiments, as shown in FIG. 20, the top surface 418 and
the bottom surface 420 have a slight upward curve as they move away
from rear surface 414. In some embodiments, the toe attachment 410
can have a cutout or slot 416 that extends from the top surface 418
to the bottom surface 420 that divides the toe attachment 410 into
a medial lobe 422 and a lateral lobe 424. In some embodiments, the
cutout or slot 416 is generally U-shaped and sized to receive a
strap of a sandal, flip-flop or similar footwear (e.g., the slot
416 can provide a sandal toe feature). In some embodiments, the
cutout 416 resulting in a medial lobe 422 and lateral lobe 424
gives the toe attachment 410 a more anatomical appearance. In some
embodiments, the more anatomical appearance is a "sandal toe"
appearance. In some embodiments, both the medial lobe 422 and
lateral lobe 424 can have a width. In some embodiments, the medial
lobe 422 has a width greater than the width of the lateral lobe
424. In other embodiments, the lateral lobe 424 has a width greater
than the width of the medial lobe 422. In still other embodiments,
the medial lobe 422 and lateral lobe 424 have equal or
approximately equal widths (e.g., the slot 416 can be located
generally midway along the width of the foot 400). In some
embodiments, the respective widths of the medial lobe 422 and
lateral lobe 424 result in a stiffness for the medial lobe 422 and
lateral lobe 424, wherein varying the widths of the medial lobe 422
and lateral lobe 424 results in varying the stiffness of the medial
lobe 422 and lateral lobe 424. In some embodiments, this stiffness
of the medial lobe 422 and lateral lobe 424 improve the functional
characteristics of the prosthetic foot 400 during rollover.
Additionally, when coupled to a foot plate 440, the toe attachment
410 facilitates use of the prosthetic foot 400 with sandal-type
shoes or other footwear without the use a cosmesis.
[0085] FIGS. 21-25 illustrate one embodiment of a seal cover 500
for a cosmetic cover (e.g., cosmesis) for a prosthetic foot. In
some embodiments, the seal cover 500 generally has the shape of the
cross-section of a human ankle. In some embodiments, the seal cover
500 generally has the shape of the ankle opening of a cosmetic
cover for a prosthetic foot. The seal cover 500 generally can have
an inner portion 512 and an outer portion 514. In some embodiments,
the inner portion 512 and the outer portion 514 are made of
different materials. In some embodiments, the inner portion 512 is
a membrane made of a flexible material. In some embodiments, the
flexible material is elastic. In some embodiments, the outer
portion 514 is a frame made of plastic (e.g., a hard plastic).
However, other suitable materials can be used. In still another
embodiment, the inner portion 512 and the outer portion 514 can be
made of the same material.
[0086] The inner portion 512 can have a circular opening 516 that
can fit over (e.g., engage) a portion of a prosthetic foot 542 or
prosthetic component (e.g., pylon) 544 or 546, resulting in a
substantially watertight connection 560 between the inner portion
512 and the prosthetic foot 542 or prosthetic foot component 544 or
546. In some embodiments, the circular opening 516 can have an
O-ring 518. In some embodiments, the opening 516 of the inner
portion 512 fits over (e.g., engages) an adaptor of a prosthetic
foot. In some embodiments, the opening 516 of the inner portion 512
fits around (e.g., engages) a shank of a prosthetic foot. In some
embodiments, the opening 516 of the inner portion 512 engages a
collar adaptor located on a prosthetic foot (e.g., the collar
adaptor 700 shown in FIG. 31 and described below), the collar
adaptor having a groove that can receive the O-ring 518 of the
opening 516. In some embodiments, when the opening 516 is engaged
with the corresponding portion of a prosthetic foot 544, the
connection 560 between the inner portion 512 and the prosthetic
foot is substantially watertight.
[0087] In some embodiments, the outer portion 514 can have a top
surface 520, a bottom surface 522, and an edge 524 defining a
perimeter 526. The edge 524 and the top surface 520 form a corner
528 around the perimeter 526 of the outer portion 514, and, in some
embodiments, this corner 528 is rounded off. In some embodiments,
the top surface 520 is substantially flat. In some embodiments, the
perimeter 526 has generally the shape of the ankle opening of a
cosmetic cover 540 for a prosthetic foot 542. The outer portion 514
can engage a cosmetic cover 540 for a prosthetic foot 542. In some
embodiments, the outer portion 514 can removably engage a cosmetic
cover 540 for a prosthetic foot 542. In some embodiments, the
bottom surface 522 can engage a cosmetic cover 540 for a prosthetic
foot 542. In some embodiments, the bottom surface 522 has a series
of protrusions 530 that can removably engage complementary cavities
on the cosmetic cover 540. In some embodiments, the bottom surface
522 can engage a cosmetic cover 540 such that the connection 550
between the outer portion 514 and the cosmetic cover is
substantially watertight. In some embodiments, glue or epoxy can be
used at the connection 550 between the outer portion 514 and the
cosmetic cover to improve the seal of the connection 550.
[0088] In some embodiments, the series of protrusions 530 is
generally located around the perimeter 526 of the outer portion
514. In some embodiments, the series of protrusions 530 generally
located around the perimeter 526 of the outer portion 514 are
offset in from the edge 524 of the outer portion 514 such that when
the outer portion 514 is engaged with a cosmetic cover, the edge
524 of the outer portion 514 is substantially flush with an outer
surface of the cosmetic cover 540. In some embodiments, the
protrusions 530 mate with corresponding recess openings or slots on
a surface of the opening of the cosmetic cover 540. In some
embodiments, the protrusions 530 are equally spaced around the
perimeter 526 of the outer portion 514. In some embodiments, the
spacing between the protrusions 530 can vary. In some embodiments,
the series of protrusions 530 can have any number of protrusions.
In some embodiments, the number of protrusions 530 is between 1 and
30. In some embodiments, there are about 15-20 protrusions in the
series of protrusions 530. In some embodiments, there are 18
protrusions in the series of protrusions 530.
[0089] In some embodiments, a protrusion 530 can have a height, a
length, a width, and a first and second cross-sectional faces 532,
the cross-sectional faces 532 having a shape comprising a body 534
having a rectangular cross-section and a head 536 having an
inverted triangular cross-section. The head 536 is located on the
portion of the protrusion 530 farthest away from the bottom surface
522. In some embodiments, the triangular portion of the first and
second cross-sectional faces 532 is angled inwards towards the
opposite cross-sectional face. In some embodiments, the triangular
head 536 has a width greater than the width of the rectangular body
534 such that the width of the triangle extends beyond the width of
the rectangle. The height of a protrusion 530 is defined by the
distance from the bottom surface 522 to the tip of the head 534 of
the protrusion 530. In some embodiments, all protrusions 530 have
equal heights. In some embodiments, the protrusions 530 have
varying heights. In some embodiments, the height of a single
protrusion 530 can be between about 0.1 cm to about 10 cm. In some
embodiments, the height of a single protrusion 530 can be between
about 0.1 cm to about 3 cm. The length of a protrusion 530 is
defined by the distance from the first cross-sectional face to the
second cross-sectional face. The length of a single protrusion 530
can vary between about 0.1 cm to about 10 cm. In some embodiments,
the length of a single protrusion 530 can be between about 0.1 cm
to about 3 cm. In some embodiments, all protrusions 530 have
generally equal lengths. In some embodiments, protrusions 530 can
have varying lengths. In some embodiments, the protrusions 530 are
generally straight between the first and second cross-sectional
faces 532. In some embodiments, the protrusions 530 curve between
the first and second cross-sectional faces 532. In some
embodiments, the protrusions 530 curve between the first and second
cross-sectional faces 532 such that they run generally parallel to
the perimeter 526 of the outer portion 514.
[0090] FIG. 25B illustrates one embodiment of a seal cover 500
engaged with a cosmetic cover 540 and fitted around (e.g., engaged
with) a prosthetic foot system. In some embodiments, the outer
portion 514 of the seal cover 500 is engaged with the cosmetic
cover 540 such that the connection 550 between the outer portion
514 and the cosmetic cover 540 is substantially watertight. In some
embodiments, the inner portion 512 of the seal cover 500 fits
around (e.g., engages) a component 542, 544 or 546 of a prosthetic
foot system such that the connection 560 between the inner portion
512 and the prosthetic foot system is substantially watertight. In
some embodiments, the inner portion 512 of the seal cover 500 fits
around (e.g., engages) a collar adaptor (e.g., the collar adaptor
700 shown in FIG. 31 and described below) located on or around a
component of a prosthetic foot system, wherein the collar adaptor
can have a groove to receive the inner portion 512. In some
embodiments, the inner portion 512 can have varying shapes or
designs.
[0091] FIGS. 26-30 illustrate one embodiment of a seal cover 600
for a cosmetic cover for a prosthetic foot. In some embodiments,
the seal cover 600 generally has the shape of the cross-section of
a human ankle. In some embodiments, the seal cover 600 generally
has the shape of the ankle opening of a cosmetic cover for a
prosthetic foot. The seal cover 600 generally can have an inner
portion 612 and an outer portion 614. In some embodiments, the
inner portion 612 and the outer portion 614 are made of different
materials. In some embodiments, the inner portion 612 is a membrane
made of a flexible material. In some embodiments, the flexible
material is elastic. In some embodiments, the outer portion 614 is
a frame made of plastic (e.g., hard plastic). However, other
suitable materials can be used. In still another embodiment, the
inner portion 612 and the outer portion 614 can be made of the same
material.
[0092] The inner portion 612 can have a circular opening 616 that
can fit over (e.g., engage) a portion of a prosthetic foot or
prosthetic component (e.g., pylon), resulting in a substantially
watertight connection between the inner portion 612 and the
prosthetic foot. In some embodiments, the circular opening 616 can
have an O-ring 618. In some embodiments, the opening 616 of the
inner portion 612 fits over (e.g., engages) an adaptor of a
prosthetic foot. In some embodiments, the opening 616 of the inner
portion 612 fits around (e.g., engages) a shank of a prosthetic
foot. In some embodiments, the opening 616 of the inner portion 612
engages a collar adaptor located on a prosthetic foot (e.g., the
collar adaptor 700 shown in FIG. 31 and described below), the
collar adaptor having a groove that can receive the O-ring 618 of
the opening 616. In some embodiments, when the opening 616 is
engaged with the corresponding portion of a prosthetic foot, the
connection between the inner portion 612 and the prosthetic foot is
substantially watertight.
[0093] In some embodiments, the outer portion 614 can have a top
surface 620, a bottom surface 622, and an edge 624 defining a
perimeter 626. The edge 624 and the top surface 620 form a corner
628 around the perimeter 626 of the outer portion 614, and, in some
embodiments, this corner 628 is rounded off. In some embodiments,
the top surface 620 is substantially flat. In some embodiments, the
perimeter 626 has generally the shape of the ankle opening of a
cosmetic cover for a prosthetic foot. The outer portion 614 can
engage a cosmetic cover for a prosthetic foot. In some embodiments,
the outer portion 614 can removably engage a cosmetic cover for a
prosthetic foot. In some embodiments, the bottom surface 622 can
engage a cosmetic cover for a prosthetic foot. In some embodiments
the bottom surface 622 can have a first lip 630 and a second lip
640, wherein the first lip 630 is closer to the perimeter 626 of
the outer portion 614 than the second lip 640, and whereby the two
lips 630 and 640 define a cavity or slot 650 between them. In some
embodiments, the first and second lips 630 and 640 can removably
engage a cosmetic cover for a prosthetic foot. In some embodiments,
the first and second lips 630 and 640 are located generally near
the perimeter 626 of the bottom surface 622. In some embodiments,
the first lip 630 is a continuous projection that forms a single
continuous ridge that runs generally parallel to the perimeter 626
of the outer portion 614. In some embodiments, the second lip 640
is a continuous projection that forms a single continuous ridge
that runs generally parallel to the perimeter 626 of the outer
portion 614. In some embodiments, the first and second lips 630 and
640 run generally parallel to the perimeter 626 of the outer
portion 614. In some embodiments, the continuous first and second
lips 630 and 640 define a cavity, slot or channel 650 that runs
substantially parallel to the perimeter 626 of the outer portion
614 and that can removably receive at least a portion of a cosmetic
cover for a prosthetic foot.
[0094] In some embodiments, the first lip 630 has an outer surface
632 and an inner surface 634. In some embodiments, the outer
surface 632 of the first lip 630 is generally perpendicular to the
top surface 620 of the outer portion 614. In some embodiments, the
outer surface 632 is contiguous with the edge 624 of the outer
portion 614 such that it is effectively a continuation of the edge
624 of the outer portion 614. In some embodiments, the inner
surface 634 of the first lip 630 is at an angle relative to the
outer surface 632 such that the first lip 630 becomes narrower as
it moves away from the bottom surface 622 of the outer portion
614.
[0095] In some embodiments, the second lip 640 has an outer surface
642 and an inner surface 644. In some embodiments, the outer
surface 642 of the second lip 640 is generally perpendicular to the
top surface 620 of the outer portion 614. In some embodiments, the
outer surface 642 of the second lip 640 is generally parallel to
the outer surface 632 of the first lip 630. In some embodiments,
the inner surface 644 of the second lip 640 has a semi-circle or
round protrusion 646 on the portion of the surface 644 that is
farthest away from the bottom surface 622 of the outer portion 614.
In some embodiments, the portion of the inner surface 644 closest
to the bottom surface 622 of the outer portion 614 is at an angle
relative to the outer surface 642 of the second lip 640. In some
embodiments, the semi-circle or round protrusion 646 on the inner
surface 644 of the second lip 640 can removably engage a
corresponding feature on a cosmetic cover for a prosthetic foot. In
some embodiments, the second lip 640 can deflect towards first lip
630 during the process of engaging the seal cover to the cosmetic
cover, and then return to the original un-deflected position to
engage the cosmetic cover. In some embodiments, the connection
between the outer portion 614 and the cosmetic cover is
substantially watertight. In some embodiments, glue or epoxy may be
used at the point of attachment to achieve a greater degree of
waterproofing.
[0096] FIGS. 32-37 illustrate one embodiment of a seal cover 800
for a cosmetic cover for a prosthetic foot. In some embodiments,
the seal cover 800 generally has the shape of the cross-section of
a human ankle. In some embodiments, the seal cover 800 generally
has the shape of the ankle opening of a cosmetic cover for a
prosthetic foot. The seal cover 800 generally can have an inner
portion 812 and an outer portion 814. In some embodiments, the
inner portion 812 and the outer portion 814 are made of different
materials. In some embodiments, the inner portion 812 is a membrane
made of a flexible material. In some embodiments, the flexible
material is elastic. In some embodiments, the outer portion 814 is
a frame made of plastic (e.g., hard plastic). In still another
embodiment, the inner portion 812 and the outer portion 814 can be
made of the same material.
[0097] However, other suitable materials can be used. The inner
portion 812 can have a circular opening 816 that can fit over
(e.g., engage) a portion of a prosthetic foot or prosthetic
component (e.g., pylon), resulting in a substantially watertight
connection between the inner portion 812 and the prosthetic foot.
In some embodiments, the circular opening 816 can have an O-ring
818. In some embodiments, the opening 816 of the inner portion 812
fits over (e.g., engages) an adaptor of a prosthetic foot. In some
embodiments, the opening 816 of the inner portion 812 fits around
(e.g., engages) a shank of a prosthetic foot. In some embodiments,
the opening 816 of the inner portion 812 engages a collar adaptor
located on a prosthetic foot (e.g., the collar adaptor 700 shown in
FIG. 31 and described below), the collar adaptor having a groove
that can receive the O-ring 818 of the opening 816. In some
embodiments, the inner portion 812 can have excess material (e.g.,
be oversized) such that when the opening 816 is engaged with a
portion of a prosthetic foot or prosthetic component, the inner
portion 816 is not taut or rigid. In some embodiments, the excess
material (or oversized configuration) of the inner portion 812 can
define one or more folds 870 in the inner portion 812. In some
embodiments, this excess material that defines one or more folds
870 allows for greater flexibility of the inner portion 812 when it
is engaged with a prosthetic foot or prosthetic component. In some
embodiments, when the opening 816 is engaged with the corresponding
portion of a prosthetic foot, the connection between the inner
portion 812 and the prosthetic foot is substantially
watertight.
[0098] In some embodiments, the outer portion 814 can have a top
surface 820, a bottom surface 822, and an edge 824 defining a
perimeter 826. The edge 824 and the top surface 820 form a corner
828 around the perimeter 826 of the outer portion 814, and, in some
embodiments, this corner 828 is rounded off. In some embodiments,
the top surface 820 is substantially flat, though in other
embodiments it can have other suitable configurations (e.g.,
curved, concave, convex). In some embodiments, the perimeter 826
has generally the shape of the ankle opening of a cosmetic cover
840 for a prosthetic foot 842. The outer portion 814 can engage a
cosmetic cover 840 for a prosthetic foot 842. In some embodiments,
the outer portion 814 can removably engage a cosmetic cover 840 for
a prosthetic foot 842. In some embodiments, the bottom surface 822
can engage a cosmetic cover 840 for a prosthetic foot 842. In some
embodiments, the outer portion 814 can engage a cosmetic cover 840
for a prosthetic foot 842 in the manner described and shown with
respect to outer portion 514 and cosmetic cover 540 in FIGS. 21-25,
via a series of protrusions 830 on the bottom surface 822 that can
removably engage one or more complementary cavities, recesses or
slots on the cosmetic cover 840. In some embodiments, the series of
protrusions 830 on seal cover 800 is substantially similar to the
series of protrusions 530 on seal cover 500 as described above for
FIGS. 21-25. In some embodiments, the outer portion 814 can fit
over or engage a cosmetic cover 840 for a prosthetic foot 842 in
the manner described and shown with respect to outer portion 614
and in FIGS. 26-30, using a first and second lip to engage the
cosmetic cover 840 (not shown for the embodiment of the seal cover
800). In some embodiments, the first and second lips (not shown)
are substantially similar to the first lip 630 and second lip 640
on seal cover 600 described above for FIGS. 26-30.
[0099] FIG. 37 illustrates one embodiment of a seal cover 800
engaged with a cosmetic cover 840 and fitted around (e.g., engaged
with) a prosthetic foot system. In some embodiments, the outer
portion 814 of the seal cover 800 is engaged with the cosmetic
cover 840 such that the connection 850 between the outer portion
814 and the cosmetic cover 840 is substantially watertight. In some
embodiments, the inner portion 812 of the seal cover 800 fits
around (e.g., engages) a component, for example 842 or 844, of a
prosthetic foot system such that the connection 860 between the
inner portion 812 and the prosthetic foot system is substantially
watertight. In some embodiments, the inner portion 812 of the seal
cover 800 fits around (e.g., engages) a collar adaptor (e.g., the
collar adaptor 700 shown in FIG. 31 and described below) located on
or around a component of a prosthetic foot system, wherein the
collar adaptor can have a groove to receive the inner portion 812.
In some embodiments, the inner portion 812 has excess material (or
is oversized) resulting in at least one fold 870, wherein the at
least one fold 870 allows for greater flexibility in the inner
portion 812 and the connection 860 between the inner portion 812
and the prosthetic foot system. In some embodiments, the inner
portion 812 can have varying shapes or designs, including one or
more folds 870.
[0100] FIG. 31 illustrates one embodiment of a collar adaptor 700
for a prosthetic foot system that can receive (e.g., engage) a seal
cover, such as the seal cover 500 or seal cover 600. In some
embodiments, the collar adaptor 700 can have a groove 710 that can
receive (e.g., engage) at least a portion of a seal cover. In some
embodiments, the groove 710 can receive (e.g., engage) an inner
portion of a seal cover. In some embodiments, the groove 710 can
receive (e.g., engage) an O-ring of an inner portion of a seal
cover. In some embodiments, the groove 710 is circumferential. In
some embodiments, the groove 710 can have a semi-circular
cross-section. In some embodiments, the collar adaptor 700 can
receive (e.g., engage) at least a portion of a seal cover such that
the connection between the collar adaptor 700 and the seal cover is
substantially watertight.
[0101] In some embodiments, the collar adaptor 700 can fit on,
over, or around (e.g., engage) a portion or component of a
prosthetic foot system, such as a proximal portion of a foot plate
of the prosthetic foot or a pylon attached to the prosthetic foot.
In some embodiments, the collar adaptor 700 can fit on, over, or
around (e.g., engage) a portion or component of a prosthetic foot
system via an aperture in the collar adaptor 700. In some
embodiments, the aperture can have a substantially rectangular
shape. In some embodiments, the aperture can have a substantially
circular shape. In some embodiments, the aperture can have a shape
such that the collar adaptor 700 can fit on, over, or around a
portion or component of a prosthetic foot system (e.g., the shape
of the aperture generally coincides with a cross-sectional shape of
the component to which the adaptor is coupled). In some
embodiments, the collar adaptor 700 can fit on, over, or around
(e.g., engage) the shank, pylon, pyramid adaptor, foot plate, or
any other portion or component of a prosthetic foot system. In some
embodiments, the collar adaptor 700 can fit on, over, or around
(e.g., engage) at least a portion or component of a prosthetic foot
system such that the connection between the collar adaptor 700 and
the at least a portion of the prosthetic foot system is
substantially watertight. In some embodiments, the collar adaptor
700 can fit on, over, or around (e.g., engage) a portion or
component of a prosthetic foot system and can removably receive
(e.g., engage) at least a portion (i.e., an inner portion or
O-ring) of a seal cover resulting in a substantially watertight
connection between the prosthetic foot system and the seal cover.
In some embodiments, the collar adaptor 700 can be integrated into
(e.g., manufactured as a part of) at least a portion of a
prosthetic foot system, such that the portion of the prosthetic
foot system can have a groove 710 that can receive (e.g., engage) a
portion of a seal cover.
[0102] Although this disclosure has been described in the context
of certain embodiments and examples, it will be understood by those
skilled in the art that the disclosure extends beyond the
specifically disclosed embodiments to other alternative embodiments
and/or uses and obvious modifications and equivalents thereof. In
addition, while several variations of the embodiments of the
disclosure have been shown and described in detail, other
modifications, which are within the scope of this disclosure, will
be readily apparent to those of skill in the art. It is also
contemplated that various combinations or sub-combinations of the
specific features and aspects of the embodiments may be made and
still fall within the scope of the disclosure. For example,
features described above in connection with one embodiment can be
used with a different embodiment described herein and the
combination still fall within the scope of the disclosure. It
should be understood that various features and aspects of the
disclosed embodiments can be combined with, or substituted for, one
another in order to form varying modes of the embodiments of the
disclosure. Thus, it is intended that the scope of the disclosure
herein should not be limited by the particular embodiments
described above.
[0103] Features, materials, characteristics, or groups described in
conjunction with a particular aspect, embodiment, or example are to
be understood to be applicable to any other aspect, embodiment or
example described in this section or elsewhere in this
specification unless incompatible therewith. All of the features
disclosed in this specification (including any accompanying claims,
abstract and drawings), and/or all of the steps of any method or
process so disclosed, may be combined in any combination, except
combinations where at least some of such features and/or steps are
mutually exclusive. The protection is not restricted to the details
of any foregoing embodiments. The protection extends to any novel
one, or any novel combination, of the features disclosed in this
specification (including any accompanying claims, abstract and
drawings), or to any novel one, or any novel combination, of the
steps of any method or process so disclosed.
[0104] Furthermore, certain features that are described in this
disclosure in the context of separate implementations can also be
implemented in combination in a single implementation. Conversely,
various features that are described in the context of a single
implementation can also be implemented in multiple implementations
separately or in any suitable subcombination. Moreover, although
features may be described above as acting in certain combinations,
one or more features from a claimed combination can, in some cases,
be excised from the combination, and the combination may be claimed
as a subcombination or variation of a subcombination.
[0105] Moreover, while operations may be depicted in the drawings
or described in the specification in a particular order, such
operations need not be performed in the particular order shown or
in sequential order, or that all operations be performed, to
achieve desirable results. Other operations that are not depicted
or described can be incorporated in the example methods and
processes. For example, one or more additional operations can be
performed before, after, simultaneously, or between any of the
described operations. Further, the operations may be rearranged or
reordered in other implementations. Those skilled in the art will
appreciate that in some embodiments, the actual steps taken in the
processes illustrated and/or disclosed may differ from those shown
in the figures. Depending on the embodiment, certain of the steps
described above may be removed, others may be added. Furthermore,
the features and attributes of the specific embodiments disclosed
above may be combined in different ways to form additional
embodiments, all of which fall within the scope of the present
disclosure. Also, the separation of various system components in
the implementations described above should not be understood as
requiring such separation in all implementations, and it should be
understood that the described components and systems can generally
be integrated together in a single product or packaged into
multiple products.
[0106] For purposes of this disclosure, certain aspects,
advantages, and novel features are described herein. Not
necessarily all such advantages may be achieved in accordance with
any particular embodiment. Thus, for example, those skilled in the
art will recognize that the disclosure may be embodied or carried
out in a manner that achieves one advantage or a group of
advantages as taught herein without necessarily achieving other
advantages as may be taught or suggested herein.
[0107] Conditional language, such as "can," "could," "might," or
"may," unless specifically stated otherwise, or otherwise
understood within the context as used, is generally intended to
convey that certain embodiments include, while other embodiments do
not include, certain features, elements, and/or steps. Thus, such
conditional language is not generally intended to imply that
features, elements, and/or steps are in any way required for one or
more embodiments or that one or more embodiments necessarily
include logic for deciding, with or without user input or
prompting, whether these features, elements, and/or steps are
included or are to be performed in any particular embodiment.
[0108] Conjunctive language such as the phrase "at least one of X,
Y, and Z," unless specifically stated otherwise, is otherwise
understood with the context as used in general to convey that an
item, term, etc. may be either X, Y, or Z. Thus, such conjunctive
language is not generally intended to imply that certain
embodiments require the presence of at least one of X, at least one
of Y, and at least one of Z.
[0109] Language of degree used herein, such as the terms
"approximately," "about," "generally," and "substantially" as used
herein represent a value, amount, or characteristic close to the
stated value, amount, or characteristic that still performs a
desired function or achieves a desired result. For example, the
terms "approximately", "about", "generally," and "substantially"
may refer to an amount that is within less than 10% of, within less
than 5% of, within less than 1% of, within less than 0.1% of, and
within less than 0.01% of the stated amount. As another example, in
certain embodiments, the terms "generally parallel" and
"substantially parallel" refer to a value, amount, or
characteristic that departs from exactly parallel by less than or
equal to 15 degrees, 10 degrees, 5 degrees, 3 degrees, 1 degree,
0.1 degree, or otherwise.
[0110] The scope of the present disclosure is not intended to be
limited by the specific disclosures of preferred embodiments in
this section or elsewhere in this specification, and may be defined
by claims as presented in this section or elsewhere in this
specification or as presented in the future. The language of the
claims is to be interpreted broadly based on the language employed
in the claims and not limited to the examples described in the
present specification or during the prosecution of the application,
which examples are to be construed as non-exclusive.
* * * * *