U.S. patent number 3,858,570 [Application Number 05/261,801] was granted by the patent office on 1975-01-07 for comprehensive infant care system.
This patent grant is currently assigned to Puritan-Bennett Corporation. Invention is credited to John W. Beld, Paul A. Byrne, Warren G. Kinninger, Robert E. N. Klohr.
United States Patent |
3,858,570 |
Beld , et al. |
January 7, 1975 |
COMPREHENSIVE INFANT CARE SYSTEM
Abstract
This invention relates generally to an incubator and more
particularly to a comprehensive infant care system comprising an
environmental chamber for the infant which chamber has a base and a
transparent dome adapted to fit over the base. Means are provided
for moving the dome relative to the base between a closed position
in engagement with the base and a predetermined open limit position
and for holding the dome at various positions between the open
limit and closed positions. The chamber, including the dome and
base, as well as the dome-moving means is mounted on a supporting
structure and there is included means for tilting the entire
chamber to a selected tilt position. The system further comprises a
chassis portion within the supporting structure having internally
wired compartments, modular electronic units adapted to plug into
the compartments, and means for electrically connecting the modular
units to the chassis wiring upon plugging the units into the
compartments. Means are also provided for supplying infrared heat
to the chamber.
Inventors: |
Beld; John W. (O'Fallon,
MO), Kinninger; Warren G. (Florissant, MO), Klohr; Robert
E. N. (Fenton, MO), Byrne; Paul A. (St. Louis, MO) |
Assignee: |
Puritan-Bennett Corporation
(Kansas City, MO)
|
Family
ID: |
22994933 |
Appl.
No.: |
05/261,801 |
Filed: |
June 12, 1972 |
Current U.S.
Class: |
600/22; 392/416;
5/603; 5/655 |
Current CPC
Class: |
A61G
11/008 (20130101); A61G 11/00 (20130101); A61G
11/003 (20130101); A61G 7/005 (20130101); A61G
11/005 (20130101); A61F 2007/0088 (20130101); A61G
2210/50 (20130101) |
Current International
Class: |
A61G
11/00 (20060101); A61G 7/005 (20060101); A61F
7/00 (20060101); A61g 011/00 () |
Field of
Search: |
;128/1B,204,145R,172.1,212,395,371,372 ;98/1.5 ;21/83
;312/117,123,209,241,350,249,250,251,252,284,312,237
;220/35,36,89B,8 ;119/43 ;34/99 ;5/362 ;248/162 ;217/6E |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
|
|
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510,199 |
|
Oct 1952 |
|
FR |
|
160,736 |
|
Jan 1955 |
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AU |
|
Primary Examiner: Gaudet; Richard A.
Assistant Examiner: Recla; Henry J.
Attorney, Agent or Firm: Rogers, Ezell & Eilers
Claims
What is claimed is:
1. An incubator for infants comprising a base on which the infant
lies, a dome adapted to fit over the base and to define with the
base an environmental chamber for the infant, the dome and base
having mating surfaces which engage when the dome is closed, means
for moving the dome relative to the base along a defined path
between a closed position and an open position relative to the
base, means for maintaining an equal distance between said mating
surfaces for each dome position, whereby for a given dome position,
the mating surfaces are the same distance apart, an infrared
heating source for emitting infrared radiation to the infant, and
means for mounting said heating source above the base in fixed
relation to said dome to emit the same relative distribution of
radiation energy over the infant for all positions of the dome
relative to the base, whereby as the dome is moved between closed
and opened positions, the relative distribution of radiation energy
over the infant from the infrared heating source remains
constant.
2. The incubator of claim 1 further comprising means for holding
the dome at various positions between the open and closed
positions.
3. The incubator of claim 1 further comprising a guide means having
a first member connected to the base and a second member connected
to the dome, the guide means further including means for moving the
first member relative to the second member for movement of the dome
with respect to the base.
4. The incubator of claim 3 wherein the guide means further
comprises a tower assembly having a rigid first member and a rigid
second member, means for slideably mounting the second member in
telescoping relationship with respect to the first member, means
for attaching the base to the first member, and means for attaching
the dome to the second member.
5. The incubator of claim 3 further comprising means for
counterweighting the second member and components connected thereto
to hold the dome in any selected position relative to the base
between the open and closed positions unless forcibly moved.
6. The incubator of claim 5 wherein the counterbalancing means is a
spring means.
7. The incubator of claim 1 wherein the base includes side walls
having surfaces for seating with the dome in its closed
position.
8. The incubator of claim 1 further comprising means for tilting
the dome, base, and dome-moving means as a unit, and mens for
locking the unit in a selected tilt position.
9. The incubator of claim 8 further comprising a support structure,
a carriage assembly pivotally mounted at one end on the top of the
support structure, means at the other end of the carriage assembly
to hold that end at a selected position above the support
structure, the base and dome-moving means being mounted on top of
the carriage assembly for tilting movement therewith.
10. The incubator of claim 1 further comprising a support
structure, and means for mounting the dome base on the support
structure, the support structure having a chassis portion for
housing electronic circuitry for monitoring or controlling selected
parameters.
11. The incubator of claim 1 including an infrared heating element
secured to the top portion of the dome, and means for supplying
electrical power to the heating element.
12. The incubator of claim 1 wherein the dome is transparent and
all of the corners of both the dome and base are rounded for ease
in cleaning and protection of the infant.
13. The incubator of claim 1 wherein the base includes a surface
defining a plane for supporting the infant, and said dome movement
between closed and open positions is along a path generally normal
to said plane.
14. The incubator of claim 1 wherein the relative distribution of
radiation energy for each position of the dome relative to the base
is uniform.
15. An incubator for infants comprising a base on which the infant
lies, a dome adapted to fit over the base and define with the base
an environment chamber for the infant, means to move the dome
relative to the base between a closed position in engagement with
the base and an open position, a support structure including a
cabinet portion and a chassis portion, a pedestal portion for
supporting the chassis portion in spaced relation above the cabinet
portion, the pedestal portion being substantially narrower than the
chassis and cabinet portions, modular electronic units each
designed to monitor or control selected parameters, the chassis
portion including compartments for slideably receiving the modules,
the incubator further comprising means for mounting the dome base
on the chassis portion.
16. The incubator of claim 15 wherein each of the modules includes
an electrical connector and each of the compartments includes a
prewired electrical connector that mates with the electrical
connector on its associated module, and further including means for
aligning the mating connectors for automatic connection when a
module is inserted into its associated compartment.
17. The incubator of claim 16 including a central connector panel
into which sensor leads may be connected, the panel being
internally wired within the chassis portion and through the mating
connectors to the modular units.
18. The incubator of claim 15 wherein the support structure further
includes work surfaces on top of the cabinet portion at each side
of the pedestal portion.
19. The incubator of claim 18 including a tray mounted in the top
of the cabinet portion.
20. A comprehensive infant care system comprising a supporting
structure having a chassis portion with compartments therein,
modular electronic units adapted to plug into the compartments, the
compartments being internally wired, means for electrically
connecting the modular units to the chassis wiring upon plugging
the units into the compartments, a carriage assembly, means for
mounting the carriage assembly on the supporting structure for
tilting movement of the carriage assembly with respect to the
supporting structure, means for locking the carriage assembly in a
selected tilt position, an incubator chamber in which the infant is
placed having a base mounted on the carriage assembly, and a
transparent dome for covering the infant, the system further
comprising a first column member mounted at its bottom to the
carriage assembly at one side of the dome and base, a second column
mounted for sliding movement relative to the first column, an arm
member, means for mounting one end of the arm member to the second
column for movement therewith, and means for mounting the dome to
the other end of the arm member with the dome in alignment with the
base, whereby movement of the second column relative to the first
moves the dome relative to the base between a closed position in
contact with the base and a predetermined open position, and
whereby tilting the carriage assembly correspondingly tilts the
base, first and second column members, arm member, and dome as a
unit.
21. The system of claim 20 including means for snapping the base
onto the carriage assembly for easy installation and removal of the
base.
22. The system of claim 20 including means for locking the carriage
assembly in a selected one of several tilt positions.
23. The system of claim 20 including means for counterbalancing the
cumulative weight of the second column and those components
supported thereby to hold the second column in any slide position
relative to the first column between the fully closed and open
positions, and hence the dome in any position relative to the base
between fully open and closed positions.
24. The system of claim 23 wherein the counterbalancing means
further comprises a spring means, one end of the spring means
connected to the top of the first column and its other end
connected to the bottom of the second column, the tension in the
spring means being such as to urge the second column away from the
first.
25. The system of claim 20 wherein the dome and base are of molded
plastic with all corners rounded.
26. The system of claim 20 wherein the means for mounting the dome
to the end of the arm member includes handle brackets which stay
with the dome when removed from the arm member for convenience in
carrying the dome.
27. The system of claim 10 including an infrared heating element
secured to the top portion of the dome, and means for supplying
electrical power to the heating element.
28. The system of claim 20 wherein the incubator chamber is
releasably mounted for quick removal from the remaining components
of the system.
29. An incubator for infants comprising a base on which the infant
lies, a dome adapted to fit over the base, an infrared heating
element in the form of an array covering an upper surface portion
of the dome, the array having an opening therein for the
unobstructed passage of X-rays therethrough, a tray mounted beneath
the dome base for receiving an X-ray cassette and means for
defining an unobstructed X-ray path from the top of the incubator
through the opening in the heating element, dome and base, to the
X-ray cassette for X-raying the infant without inserting the
cassette into the chamber.
30. An incubator for infants comprising a base on which the infant
lies, the base including a surface defining a plane for supporting
the infant, a dome adapted to fit over the base and to define with
the base an environmental chamber for the infant, an infrared
heating element secured to the top portion of the dome, means for
supplying electrical power to the heating element, and means to
move the entire dome toward and away from the base along a path
generally normal to said plane between a closed position in
engagement with the base and an open position relative to the
base.
31. The incubator of claim 30 wherein the top portion of the dome
where the heating element is secured is relatively flat and
parallel to said plane, to provide even distribution of heat from
the element over the infant regardless of the position of the dome
between open and closed positions relative to the base.
32. The incubator of claim 31 further comprising means for tilting
the dome, base, and dome moving means as a unit, and means for
locking the unit in a selected tilt position.
33. The incubator of claim 32 further comprising a support
structure, a carriage assembly pivotally mounted at one end on the
top of the support structure, means at the other end of the
carriage assembly to hold that end at a selected position above the
support structure, the base and dome moving means being mounted on
top of the carriage assembly for tilting movement therewith.
34. The incubator of claim 30 further comprising a tower assembly
having a rigid first member and a rigid second member, means for
slideably mounting the second member in telescoping relationship
with respect to the first member, means for attaching the base to
the first member, and means for attaching the dome to the second
member.
35. The incubator of claim 34 further comprising means for
counterweighting the second member and components connected thereto
to hold the dome in any selected position relative to the base
between the open and closed positions unless forcibly moved.
36. A comprehensive infant care system comprising a supporting
structure having a chassis portion with internally wired
compartments, an incubator chamber mounted on the supporting
structure, modular electronic units, each modular unit designed to
monitor or control specific parameters within the chamber, and each
of which modular units is adapted to plug into a selected
compartment, each compartment being wired to monitor or control
specific parameters in conjunction with its associated modular unit
independently of the other compartments and units, whereby one or
more units may be used as desired, and means for automatically
electrically connecting the modular units to the chassis wiring
upon plugging the units into the compartments.
37. The system of claim 36 wherein the support structure further
includes a lower cabinet portion containing storage compartments
for instruments and medicants for attending the infant, the cabinet
portion having a top surface, the support structure further
comprising a pedestal portion between the top of the cabinet
portion and the chassis portion, which pedestal portion is
substantially narrower than the cabinet and chassis portions, to
thereby space the chassis portion above the cabinet portion such
that portions of the cabinet top extend under the chassis portion
to effectively increase the working surface on top of the
cabinet.
38. The system of claim 37 including a sunken tray mounted in the
cabinet top for placing small instruments and the like.
39. The system of claim 36 including compartment means in the
support structure adapted for receiving an oxygen tank.
40. The system of claim 36 wherein the modular units have front
panels with indicators mounted thereon, and including means for
mounting the modular units within the chassis compartments such
that the indicators are tilted upward for easy visibility.
41. The system of claim 36 including a surgical tray mounted for
selective accessibility in the supporting structure, the tray being
for the placement of instruments in performing minor operations on
the infant with the infant in the incubator.
42. The system of claim 36 wherein the incubator chamber further
comprises a base mounted on the supporting structure, a cover for
the base, and means for moving the cover into and out of covering
relationship with respect to the base.
43. The system of claim 42 further comprising means for tilting the
base, cover, and cover-moving means relative to the supporting
structure.
44. The system of claim 43 wherein the moving means includes a
first column member rigidly connected to the base, a second column
member rigidly connected to the cover, and sliding track means
between the first and second columns to slide the second column
with respect to the first and thereby move the cover with respect
to the base.
45. The system of claim 36 wherein the incubator chamber is
releasably mounted on the supporting structure for quick removal
therefrom.
46. An incubator for infants comprising a base on which the infant
lies, a dome adapted to fit over the base and to define with the
base an environmental chamber for the infant, means for controlling
the infant's environment within the chamber, a first column member
secured near its bottom end to the base at one side of the dome and
base, a second column member mounted for sliding movement relative
to the first column, an arm member, means for mounting one end of
the arm member to the second column for movement therewith, and
means for rigidly mounting the dome to the other end of the arm
member with the dome in alignment with the base, whereby movement
of the second column relative to the first moves the dome relative
to the base between a closed position in contact with the base and
an open position.
47. The incubator of claim 46 further comprising a supporting
structure, a carriage assembly, means for mounting the carriage
assembly on the supporting structure for tilting movement of the
carriage assembly with respect to the supporting structure, means
for locking the carriage assembly in a selected tilt position, and
means for mounting the dome base on the carriage assembly.
48. The incubator of claimi 47 including means for mounting the
base onto the carriage assembly for easy installation and removal
of the base.
49. The incubator of claim 46 wherein the means for mounting the
dome to the end of the arm member includes handle brackets which
stay with the dome when removed from the arm member for convenience
in carrying the dome.
50. The incubator of claim 46 including means for counterbalancing
the cumulative weight of the second column and those components
supported thereby to hold the second column in any slide position
relative to the first column between the fully closed and open
positions, and hence the dome in any position relative to the base
between fully open and closed positions.
51. The incubator of claim 50 wherein the counterbalancing means
further comprises spring means, one end of the spring means
connected to the top of the first column and its other end
connected to the bottom of the second column, the tension in the
spring means being such as to urge the second column away from the
first.
Description
BACKGROUND AND SUMMARY OF THE INVENTION
Incubator equipment for infants to date has not been designed with
an emphasis on total infant care from the date of birth. Total care
should begin in the delivery room with environmental controls which
aid the infant in adapting to his new surroundings. The ideal
system facilitates the performance of emergency procedures and
detects abnormal vital signs immediately after birth. Infants with
problems are then transported to the nursery where intensive care
or observation is continued. An incuabtor system of ideal design
should fulfill all of these requirements, but existing incubators
do not.
Existing individual instruments for diagnosis or life support
satisfy specific needs in the nursery but are not suited for total
organized care. Nurseries are forced into purchasing equipment from
various sources in an attempt to improve care, presenting many
problems because of the absence of a comprehensive design. There
has been confusion and difficulty with use of the equipment, poor
utilization of limited space, a cluttered working environment, and
limited access to the infant. For example, incubators presently
used were not originally designed for use with auxiliary equipment
now considered necessary for patient care; instruments must be
gathered and set up around the incubator as needs arise, an
annoying and time-consuming chore; the remote location of
instruments hinders the attachment of sensors with exposed sensor
leads and power cords getting in the way and limiting access to the
infant; many individual instrumentation units require supporting
cabinets which reduce effective utilization of floor space; and
extensive disassembly of the incubators is necessary for thorough
cleaning.
The need for total infant care is fulfilled by this invention which
is a comprehensive infant care system bringing together necessary
components for total care. This invention provides among other
features unobstructed access to the infant, obsolescence protection
including expandability of instrumentation and environmental
control equipment through a modular concept, clean infrared
heating, versatility, an attractive appearance, supply storage, the
elimination of clutter, easy accessibility to those parts which
must be cleaned or sterilized, convenience surfaces for
administration of drugs, performance of other medical procedures
and general working surface, necessary ease of operation.
Generally the infant care system of this invention includes a
support structure having a base cabinet primarily for storage of
equipment, medicines, and the like including a compartment for
containing an oxygen bottle and associated indicators and controls.
On top of the base cabinet is a large work surface within which is
mounted a recessed tray for the placement of certain small
instruments, medicants, and the like while attending the infant.
The support structure also includes a pedestal portion mounted on
top of the base cabinet, which pedestal portion is relatively
narrow so as to leave ample work surface on each side, and which
has a primary function of supporting a chassis portion in elevated
relationship with respect to the cabinet top.
The chassis portion has a group of compartments for receiving
modular electronic units, each of which is designed for electronic
monitoring of one or more physical parameters such as pulse,
respiration, and the like, or control of an environmental parameter
such as oxygen. Each electronic module slides into a compartment
and automatically makes electrical connection with a prewired
receptacle located within the compartment, thus eliminating the
requirement of connecting various inputs and outputs of individual
electronic units. With this invention, connecting the
instrumentation, both mechanically and electrically, is
foolproof.
Mounted on top of the chassis portion is a dome assembly generally
including a tub or base in which the infant is placed, a
transparent plastic dome, means for moving the dome into and out of
covering relationship with respect to the base and means for
tilting the entire dome assembly.
The tilting means generally includes a carriage assembly on which
the dome base is mounted, the carriage assembly being pivotally
mounted to the top of the chassis portion at one end and having
adjustable locking means at the other for selecting the degree of
tilt. The dome moving means generally includes a tower assembly
vertically mounted to the adjustable end of the carriage assembly
and having a cantilevered arm mounted at its top with means at the
outer end of the arm for mounting the dome thereto. The tower is
designed to telescope vertically such that the dome can be moved
quite easily into and out of engagement with the dome base to
provide a full incubator environment in the fully closed position,
and complete access to the infant in the fully open position.
An infrared heating element, such as of an etched, film-laminated
type is permanently bonded to the upper inside surface of the dome,
thus providing an exceptionally clean heating system and
eliminating forced air circulation.
A tray for receiving an X-ray cassette is located beneath and
formed as part of the dome base. The design of this invention
provides an unobstructed X-ray path between an X-ray gun located
above the dome and the X-ray cassette located beneath the dome base
allowing the infant to be X-rayed without disturbing him. Both the
dome and base are easily removable for cleaning or sterilizing as
required.
Hence, it is a general object of this invention to provide a
comprehensive infant care system of the type heretofore described
providing complete incubator environment with greatly improved
access to the infant, and which otherwise overcomes the problems of
the prior art.
Other objects of this invention will become apparent from the
detailed description to follow.
DESCRIPTION OF THE DRAWINGS:
FIG. 1 is a rear isometric view of the infant care system of this
invention showing the dome assembly in its open position;
FIG. 2 is a front isometric view of the infant care system of this
invention showing the dome assembly in its closed position;
FIG. 3 is a plan view on an enlarged scale of primarily the upper
portion of the infant care system of this invention with parts
broken away for purposes of illustration;
FIG. 4 is a view in section taken along the line 4--4 of FIG.
3;
FIG. 5 is an enlarged view in section taken along the line 5--5 of
FIG. 4;
FIG. 6 is an enlarged view in section taken along the line 6--6 of
FIG. 4;
FIG. 7 is an enlarged view in section taken along the line 7--7 of
FIG. 2;
FIG. 8 is a view in section taken along the line 8--8 of FIG.
4;
FIG. 9 is an enlarged fragmentary view in section taken along the
line 9--9 of FIG. 4; and
FIG. 10 is a view in section taken along the line 10--10 of FIG.
9.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT:
In the drawing there is shown an infant care system 10 of this
invention generally including a support structure 11 having a
cabinet base 12, a pedestal 14, and a chassis portion 16, and the
system further generally including a dome assembly 18.
The base cabinet 12 has a lower portion of generally rectangular
configuration including drawers such as the drawers 20, 21, and 22
and a door 23 suitably hinged as at 24 for access to a storage area
behind it. Each of the drawers and door has a suitable handle 26.
The drawers 20 through 22 are preferably removable for easy
cleaning and compartmentalized and labeled for the storage and unit
dose dispensing of medicants for the infant. Suitable locks could
also be provided for the storage of narcotics and the like.
The cabinet 12 has a right side wall 30 creased outwardly as at 31
for added strength, the upper portion of each side wall 31 having
outward extensions 33 for supporting the outer extremities of a
cabinet top 35. The left side (not shown) of the cabinet 12 is the
same as the right. The cabinet top 35 covers the entire length and
width of the cabinet including the extensions 33 and is preferably
covered with a durable, easily cleaned surface such as FORMICA or
the like. The added width of the top 35 provided by the extensions
33 provides an exceptionally large work surface for ease in
recording data and performing other tasks without increasing the
width of the cabinet 12. The overhang also shields the cabinet 12
and its contents against accidental spillage. A tray 40 is flush
mounted in the top 35 at the front side of the incubator for the
placement of small instruments used in attending the infant to
prevent them from rolling or sliding off the top.
Referring primarily to FIGS. 1 and 7, a compartment 45 is built
into the rear side of the cabinet 12 for containing an oxygen
bottle 46 having mounted thereon suitable oxygen controls and
gauges 47. At the location of the compartment 45 the bottom 48 of
the cabinet 12 has an opening 49 with a U-shaped support bracket 50
depending thereunder. The bottom of the oxygen bottle 46 extends
through the opening 49 and rests on the support bracket 50. The
compartment 45 is defined at the sides and front by suitable wall
members 52 and at the rear by a panel 53 which is pivotally mounted
at its lower end as at 54 to the rear edge of the bottom of the
cabinet 12, and which is formed at the top in a horizontal flange
56 for supporting a work surface section 58. The top section 58 is
secured to the flange 56 by suitable means such as screws 60, sized
such that with the drawer 53 closed a sufficient gap remains
between the cabinet top 35 and the top section 58 for the oxygen
controls 47 to protrude therethrough for easy access at all times.
Suitable stops (not shown) are provided to define the closed
position (shown by the solid lines) and the opened position (shown
by the dashed lines) of FIG. 1 for the panel 53. When the panel 53
is closed, it and the top section 58 fit flush with the rear wall
of the base 12 and top 35, respectively.
To insert the oxygen bottle 46 into the compartment 45, the panel
53 is pivoted to its open position, the bottle and controls
inserted, and the panel 53 pivoted closed.
The entire unit is mounted on casters 62 of preferably a conductive
material to minimize static charge.
As best seen in FIGS. 1, 2, and 7 the chassis portion 16 is
separated from the base cabinet 12 by the relatively narrow
pedestal 14 which not only provides additional service area for
fuses, accessory power outlets and the like, and an integral wiring
duct for the instrumentation contained in the chassis portion 16 to
be described, but also raises the chassis portion 16 above the top
35 to effectively increase the width of the work surface 35. The
side walls of the pedestal 14 are creased outwardly as at 64.
The chassis portion 16 houses electronic monitoring and control
equipment and generally includes upwardly sloping bottom walls 70
and 71, front and rear walls 73 and 74 which slope inwardly toward
the top, a flat top wall 75, and end walls 76 creased outwardly as
at 78 to be continuous with the creases 31 and 64. A plurality of
compartments 80 are formed internally at the front of the chassis
portion 16 and defined by structural wall members 82 (see FIG. 7)
for receiving self-contained instrumentation modular units such as
units 84, 85, 86, and 87. The units 84 through 87 are of a
self-contained plug-in type which automatically make electrical
connection by way of mating connectors 90 and 91. The connectors 91
are prewired within the chassis portion 16. Each of the modular
units 84 through 87 slides on suitable tracks within a compartment
80 to insure proper mating of the conductors 90 and 91. It should
be noted that while four such modular units are shown,
accommodations can be provided for more or less depending on the
monitoring and control requirement. Preferably, each modular unit
is designed to monitor a specific function such as pulse and
respiration, or control an environmental parameter such as oxygen
supply, or supply required power to the other circuits in the
system, with each module utilizing integrated circuit and digital
readout technology. The back panel 74 is removable for easy access
to the wiring harness and other components within the chassis
portion 16.
This novel modular electronic design as applied to incubators
provides many advantages. The modular units 84 through 87 are
mounted in a neat, orderly manner so as not to interfere with
access to the infant. Each unit slides into its compartment in a
precise manner so that electrical hookup is automatic and
foolproof. The modules are interchangeable between incubator units
so that a full set of electrical modules need not be supplied with
each unit. The face of each instrument module fits flush with the
inclined front panel surface 73 for easy reading of the instrument
displays and operation of the controls. External wiring and
electrical outlets are eliminated.
Power is supplied to the unit from a single external power cord 95
and a wiring harness within the incubator unit. Also connected by
way of the internal wiring harness to the power and instrumentation
is a centralized sensor connector panel 100 into which sensors can
be plugged for monitoring the desired parameters, thus eliminating
awkward, unsightly, and tangled wires.
A surgical tray 102 is slidedly mounted on guides 103 in the back
and at the top of the chassis portion 16 for use in performing
minor or emergency surgical procedures with the infant in the
incubator. The surgical tray 102 preferably locks in position when
fully opened but is completely removable for cleaning and
sterilizing as necessary. Handles 105 are located at each corner of
the chassis portion 16 for maneuvering the unit.
The dome assembly 18 is mounted on top of the instrument enclosure
portion 16 and generally includes a carriage assembly 110, a tower
assembly 112, a dome 114, and a dome base or tub 116. As will be
described the entire dome assembly 18 can be tilted as a unit and
the dome 114 raised or lowered with respect to the dome base 116 as
desired.
The carriage assembly 110 includes a pair of parallel rods 120 and
121 extending from the left end of the incubator unit as viewed in
FIG. 2 part way across the top of the chassis portion 16, each of
which is pivotally mounted at its right end by means of a pin 122
to a bracket 123 which is suitably secured to the top of the
chassis portion 16. The left end of each of the parallel rods 120
and 121 is secured at one end of an L-shaped bracket 125 such as by
screws 126 (best seen in FIG. 9), which brackets 125 form the
bottom of the tower assembly 112. A vertical rod 128 having a
series of spaced apertures 129 is secured at its top between the
L-shaped brackets 125 by means of a nut and bolt assembly 130, the
lower end of the rod extending downwardly through an opening 132 in
the top and at the left end of the chassis portion 16.
Beneath the opening 132 and within the chassis portion 16 is a
T-shaped handle 135 accessible through an opening 136 in the left
side wall of the chassis portion 16.
The T-handle 135 has parallel 137 and 137' extending therefrom.
Pins 138 and 139 are secured in the end of the arms 137 and 137',
respectively, and extend through suitable apertures in a plate 140
depending from and suitably secured to the top wall of the chassis
portion 16 on the side of the opening 132 opposite the T-handle
135. Springs 141 and 142 are located around the pins 138 and 139
between their heads and the plate 140. Another pin 145 is secured
in the plate 140 and extends toward the T-handle 135 into an
appropriate one of the apertures 129 in the rod 128 as will be
described.
A plate 147 having a square opening 148 through which the rod 128
extends, is secured on the top of the arms 137 and 137' by screws
149 or the like.
OPERATION OF TILT MECHANISM
To operate the tilt mechanism associated with the carriage assembly
110, it is only necessary to pull the T-handle 135 against the
force of the springs 141 and 142, which in turn causes the plate
147 to engage the rod 128 pivoting the rod about the nut and bolt
assembly 130 to the left as viewed in FIG. 4, thus disengaging the
rod 128 from the pin 145. The rod 128 and hence the left end of the
carriage assembly 110 are now free to be adjusted vertically to any
position defined by the pin 145 and an associated aperture 129.
When the carriage is in the chosen position, the T-handle 135 is
released with the springs 141 urging the T-handle 135, the plate
147, and hence the rod 128 to the right with an appropriate one of
the apertures 129 engaging the pin 145 to lock the carriage in the
selected position.
On top of the bars 120 and 121 and suitably secured thereto are a
pair of parallel crossbars 150 and 151. Near each end of the bars
150 and 151 is a spring catch 153, as best shown in FIG. 6, having
a vertical bore 155 and an intersecting horizontal bore 156. A
spring 157 is mounted within the horizontal bore 156 between a
screw cap 158 at the outer end and a steel ball 159 at the end
intercepting the vertical bore 155. The end of the horizontal bore
156 is made slightly smaller to restrict the ball 159 to extend
only partially into the vertical bore 155.
The tub or dome base 116, preferably of nonconductive molded
plastic, is releasably mounted on the carriage assembly 110 by
means of pins 163 which mate with the spring catches 153. The pins
163 are secured to the bottom of the tub by means of screws 165,
each pin 163 having an annular groove 167 within which the ball 159
catches when the pins are forcibly pressed into the vertical bores
155. In this described embodiment there are four such pins and
catches to hold the dome base to the carriage assembly.
The base 116 is a molded one-piece plastic unit having side wall
portions 170 of sufficient height to prevent the infant from
falling even with the dome 114 opened. The top of the wall 170 is
formed in a smooth downward fold 172 followed by a smooth upward
fold 174. The downward fold 172 is used as a convenient handle
formed completely around the base for ease in mounting, removal,
and carrying, while the upwardly formed fold 174 and the small
section of wall between the folds 172 and 174 provide a seating
surface for the lower edge of the dome 114 to provide an automatic
alignment when the dome is closed. All surfaces are smooth and all
corners of the dome rounded for ease in cleaning and to insure
infant protection. The dome 114 and base 116 have mating
depressions defining integral ports 180 through which sensor
conductors extend from within the dome to the central connector
panel 100. At the underside of base 116 is located a tray 182
having a short rear wall 183, a bottom wall 184, and a frontal
opening 185 for receiving an X-ray cassette. As will be described,
this is part of the design feature for taking X-rays of the infant
in the incubator without disturbing him, and without introducing
the cassette, which is biologically contaminated through handling,
into the infant's environment.
The tower assembly 112 has telescoping members, one of which
remains stationary with respect to the carriage assembly 110 and
the other of which moves axially with respect to the one member for
the purpose of adjusting the height of the dome 114 in relation to
the base 116 as will be hereinafter described.
Referring to FIGS. 4, 9, and 10, the tower assembly 112 includes a
first generally rectangular column 190 secured at its bottom to the
left end of the rods 120 and 121 such as by screws 192 or other
suitable means. Hence, the column 190 moves with the left end of
the rods 120 and 121 depending on their pivotal position as
adjusted by the tilt mechanism heretofore described. At the upper
end of the column 190 is a generally U-shaped bracket 194 (FIG. 10)
within which is pivotally mounted a pair of spools 195 and 196
about which are wound a pair of ribbon-type springs 197 and 198,
respectively, when not in tension. The upper ends of the springs
197 and 198 are suitably secured to the spools 195 and 196. The
U-shaped bracket 194 has flanges 200 suitably secured to the right
wall of the column 190 as viewed in FIG. 4. A handle 201 is
attached to the left wall near the bottom of the column 190 to aid
in adjusting the left end in the carriage assembly 110 in a manner
heretofore described.
The tower assembly 112 also includes a generally rectangular column
205 that fits in telescoping relationship outside the column 190,
and a generally U-shaped column 206 which fits in telescoping
relationship inside the column 190. The U-shaped column 206 has
walls on all sides except the right side as viewed in FIG. 4. At
the top of the inner column 206 are outwardly turned flanges 207.
The outer and inner columns 205 and 206 are fastened together at
the top by a pair of parallel rods 209 and 210, the left ends of
which are secured to the flanges 207 by suitable screws 211 and to
the top of the outer column 205 by suitable screws 212. The rod 209
is attached at the front side of the tower, and the rod 210 is
attached at the back side of the tower as viewed in FIG. 2. A plate
213 covers the top of the tower and is fastened to the rods 209 and
210 by screws 214. With the outer and inner columns 205 and 206
fastened together at the top, they move together in telescoping
relationship relative to the column 190.
To insure smooth telescoping movement between the columns suitable
bearing guides 215, such as standard drawer guides, are mounted
between the front wall of the column 190 and the front wall of the
column 206, and between the rear wall of the column 190 and the
rear wall of the column 206 as shown in FIG. 10. Each of the
bearing guides has a member 216 secured to the inner column 206, a
member 217 secured to the column 190, and a floating member 218
which move relative to one another as aided by ball bearings 220 as
is conventional in the art.
A U-shaped bracket 225 is secured between the front and rear walls
at the bottom end of the inner column 206 as best shown in FIGS. 4
and 9. The bottom ends of the springs 197 and 198 are secured by
rivets 226 or the like to the bracket 225. A handle 228 is mounted
on the left wall near the top of the outer column 205 as shown in
FIG. 4.
The rods 209 and 210 project from the top of the tower assembly 112
over the top of the dome 114. A first bracket 230 shaped like a
handle is secured beneath and at the right ends of the rods 209 and
210 with suitable bolts 231. Spaced from the handle bracket 230
toward the tower 112 is a second handle bracket 233 secured to the
rods 209 and 210 by suitable bolts 234. Hence, when viewed from the
top as in FIG. 3, the rods 209 and 210 and the handle brackets 230
and 233 define a window 235 for purposes to be explained.
The dome 114 is fastened to the underside of the handle brackets
230 and 233 by means of screws 237 so that the dome 114 can be
removed from the tower assembly 112 for cleaning or the like by
removing the bolts 231 and 234, leaving the handle brackets 230 and
233 attached to the top of the dome for ease in carrying.
The dome 114 is shaped as shown in the drawing and is molded of a
shatterproof, optically transparent material. The bottom edge of
the dome is dimensioned to conform to the wall portion between the
folds 172 and 174 of the base 116 to automatically seat therewith
when the dome is lowered on the base. These seating surfaces
eliminate the need for auxiliary hardware and gasketing which
harbor bacteria and make cleaning difficult.
All of the corners of the dome 114 are rounded for ease in cleaning
and to insure infant safety. Also, the unique dome design offers
improved visibility of the infant.
One of the features of this invention is the use of an infrared
heater formed integrally with the dome 114, thus eliminating the
need for forced air circulation requiring external air passages
which can introduce bacteria, extensive cleaning problems, and
problems with maintaining proper room temperature. Hence, the
incubator of this invention includes an infrared heating element
240, which may be of the etched, film-laminated type and
permanently bonded to the inside upper surface of the dome 114 as
shown in the drawing. The heating element 240 covers generally the
entire upper surface with the exception of the area beneath the
window 235 defined by the rods 209 and 210 and the handle brackets
230 and 234. Thus, there is provided an unobstructed X-ray path
from above the window 235 through the dome 114 and the base 116 to
an X-ray plate positioned within the tray 182 under the dome base.
With this invention it is possible to position an X-ray camera,
shown by dashed lines in FIG. 7, above the window 235, insert an
X-ray cassette in the tray 182, and X-ray the infant without
removing the infant from the incubator.
Power is supplied to the heating element 240 from within the
chassis portion 16, through conductors 242 (see FIG. 1), to the
terminals of a connector 244 physically mounted to the rod 210. A
mating connector 245 is physically mounted to the top of the dome
114 and has mating terminals electrically connected to the heating
element 240. The connectors 244 and 245 are aligned such that
connection and disconnection is automatically made upon mounting
and unmounting, respectively, the dome 114 to the arms 209 and 210.
A suitable sensor (not shown) can be located on the top of the dome
114, or some other suitable place, to protect against overheating
by opening the heater circuit as is conventional in the art.
The dome 114, like the base 116, is easily removed for cleaning. It
is contemplated that spare domes would be kept available for use
while others are being sterilized or cleaned, thereby maintaining
continual use of the remaining portions of the incubator unit.
Hence, with this invention fewer incubators are needed to serve a
given number of infants resulting in substantial cost saving.
Further, cost savings are realized due to the reduced cleaning
time, and hence the reduced labor staff required to support the
equipment.
OPERATION OF THE DOME ASSEMBLY
It has already been explained how the tilting mechanism operates to
pivot the carriage assembly 110. Because the base 116, the tower
assembly 112, and hence the dome 114 are all mounted on the
carriage assembly 110, all of these components which comprise the
dome assembly tilt with the carriage assembly as shown by the
dashed lines of FIG. 4. As heretofore stated the degree of tilt is
adjustable by positioning the pin 145 in a select one of the
apertures 129 in the rod 128 by use of the T-handle 135. Hence,
with this invention it is possible to tilt the infant to a desired
position completely externally of the dome and tube so as not to
disturb the infant and his environment.
In addition to tilting, the dome 114 can also be positioned
anywhere with respect to its base 116 between an open position
shown in FIG. 1 and a closed position best shown in FIG. 2. In this
respect the tensions of the springs 197 and 198 are selected to
very nearly counterbalance the cumulative weight of the inner and
outer columns 205 and 206, the rods 209 and 210, and the remaining
components supported thereon such as the dome 114 and heating
element 240. To raise the dome 114, upward pressure is applied to
the handle 228 causing the columns 205 and 206 to move upward with
respect to the column 190, aided by the drawer guides 215 and the
springs 197 and 198 which coil around the spools 195 and 196. Of
course, the dome 114 moves with the columns 205 and 206 since it is
physically attached thereto by means of the handle brackets 230 and
233 and the rods 209 and 210. With the tower assembly 112 so
balanced, the dome 114 will stay in any position in which it is
placed so that with ease the dome can be placed in its fully open
position for full access to the infant, its fully closed position,
or any position therebetween.
It should further be noted that the design of this invention
operation of the tower assembly 112 to position the dome 114 with
respect to its base 116 is totally independent of the tilt position
so that alignment of the dome and base is always maintained
regardless of the tilt angle or dome height.
From the foregoing it is evident that there has been described a
novel comprehensive infant care system providing complete incubator
environment with greatly improved access to the infant, and which
otherwise fulfills the objects set forth above.
Various changes and modifications may be made in this invention, as
will be readily apparent to those skilled in the art. Such changes
and modifications are within the scope and teaching of this
invention as defined by the claims appended hereto.
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