US3644950A - Patient support system - Google Patents

Patient support system Download PDF

Info

Publication number
US3644950A
US3644950A US3644950DA US3644950A US 3644950 A US3644950 A US 3644950A US 3644950D A US3644950D A US 3644950DA US 3644950 A US3644950 A US 3644950A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
container
foam
air
pressurized
top
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Edward R Lindsay Jr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Milton Roy Co
Original Assignee
Milton Roy Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT OR ACCOMODATION FOR PATIENTS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05Parts, details or accessories of beds
    • A61G7/057Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT OR ACCOMODATION FOR PATIENTS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00General characteristics of devices
    • A61G2203/30General characteristics of devices characterised by sensor means
    • A61G2203/34General characteristics of devices characterised by sensor means for pressure
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S297/00Chairs and seats
    • Y10S297/03Pneumatic

Abstract

In a bed for supporting and treating a hospital patient, a lamination of low and medium density plastic foam is enclosed in a pressurized container. An open pore foam layer on top of the container produces a flow of air from the top of the foam layer for patient ventilation. Control of the volume of air varies the degree of ventilation. The container is divided into airtight zones which can be independently pressurized to control the relative firmness of the support in different zones. The pressurizing air for the container is controlled to vary the relative firmness of support.

Description

United States Patent Lindsay, Jr. Feb. 29, 1972 [54] PATIENT SUPPORT SYSTEM 3,393,937 7/1968 Wehmer ..5/348 2,997,100 8/1961 Morris ....5/348 [72] Inventor. Edward R. Lindsay, Jr., Clearwater, Fla, 3,017,642 1/l962 Rosenberg at a. 5,349 [73] Assignee: Milton Roy Company, St. Petersburg, Fla. 3,051,601 8/1962 Shick ..5/361 [22] Wed: 1969 Primary ExaminerBobby R. Gay [21] Appl. No.: 846,719 Assistant ExaminerDarre1l Marquette Attorney-Woodcock, Washbum, Kurtz 81. Mackiewicz [52] US. Cl ..5/347, 5/348, 5/350,

297D1G 3 [57] ABSTRACT [51] Int. Cl ..A47c 27/08 In a bed f supporting and "eating a hospital patient a [58] Field of Search ..5/347, 348, 91, 355, 361, 353 lamination f low and medium density plastic f is endosed in a pressurized container. An open pore foam layer on top of [56] References cued the container produces a flow of air from the top of the foam UNITED STATES PATENTS layer for patient ventilation. Control of: the volume oi air varues the degree of ventilation. The container 18 divided into airl,228,783 6/1917 Kerivan 5/343 tight zones which can be independently pressurized to control 3,032,438 3/1963 Nachmanm. 5/ 353 the relative firmness of the support in different zones. The 3,1 18,153 1/1964 Hood 5/ 345 pressurizing air for the container is controlled to vary the rela- 3, i i i Whitney five firmness of upport 3,266,064 8/1966 Figman ....5/347 3,330,598 7/1967 Whiteside ..297/284 5 Claims, 4 Drawing Figures PATIENT SUPPORT SYSTEM BACKGROUND OF THE INVENTION This invention relates to a hospital bed and more particularly to a plastic foam bed having a flow of ventilating air from the top thereof.

The comfort of a hospital patient is greatly enhanced by a bed which provides uniform support for the patients body. Uniform support also helps prevent decubitus ulcers. Decubitus ulcers result from a loss of blood circulation caused by pressure on the skin, particularly pressure over a bony protuberance. If the pressure on areas of support exceeds the mean capillary blood pressure, these areas are vulnerable to decubitus ulcers. Other factors which contribute to decubitus ulcers are lack of proper ventilation, skin sheer, moisture and diet, but pressure is the most important and primary cause. These and other considerations are discussed in Etiology of Decubitus Ulcers: An Experimental Study, Archives of Physical Medicine and Rehabilitation, Nov., 1961.

Attempts to equalize pressure on the patients body have included the provision of liquid-filled mattresses, such as that shown in U.S. Pat. No. 3,108,293. Liquid-filled mattresses must have a cover to keep the patient out of contact with the liquid. This cover acts as a hammock and itself distributes pressure unevenly over the patients body. Both conventional and liquid-filled mattresses prevent air from circulating freely over areas of the patients body resting on the mattress.

A great advance in patient supporting beds was a fluidized granular bed shown in Hargest et al. U.S. Pat. No. 3,428,973. This bed includes a mass of granular material which is fluidized by air blowing upwardly through the mass. A patient resting on a pliable sheet on top of the mass of granular material is supported uniformly over all parts of his body. The use of beds of this type has been particularly successful in the treatment of burn victims, the prevention of decubitus ulcers and, in general, obviating the adverse effects of confinement to a hospital bed on patient recovery. The beneficial use of such beds is described in Patients Float in Bed of Beads, Hospital Practice, May, 1969, Vol. 4, No.5, page 91, and in Bead Bed Floats Away Sores, Medical World News, May 16, 1969.

Unfortunately, it is not practical to provide fluidized granular type beds for all hospital patients because of expense and weight considerations.

Soft plastic foam has some characteristics of uniform support which make it attractive for possible use in a hospital bed. The use of plastic foam instead of fluidized granules would also be attractive from the cost standpoint. Employing lowdensity foam to support a patient providesa low-pressure uniform support by allowing the patient to sink down into the foam. Since the foam is a good insulator, heat and perspiration on the supporting areas becomes a problem. Attempts have been made to ventilate a foam mattress. For example, in the F igman U.S. Pat. No. 3,266,064, regularly spaced openings in the foam convey ventilating air to the patient.

SUMMARY OF THE INVENTION In accordance with an important aspect of the present invention, the patient support includes a pressurized plastic foam filled container covered by an open pore foam sheet which serves as a plenum for the distribution of ventilating air to the supporting areas of the patients skin.

In accordance with another aspect of the invention, the pressurized container encloses a lamination of layers of plastic foam of differing density.

In accordance with another aspect of the present invention, the pressurization of the container is controlled to vary the relative firmness of the support.

In this system, the softest support is that provided by the layers of low-density foam with no air pressure. As air pressure is increased, less and less of the patients weight is supported by the foam. When maximum pressure is obtained, nearly all of the patients weight is carried by the pressurized container.

In accordance with still another aspect of the invention, the pressurized container is divided into airtight zones which are independently pressurized to control the relative firmness provided different parts of a patient.

DESCRIPTION OF THE DRAWINGS FIG. 1 shows a cross section of the polyfoam and pneumatic support system of the invention;

FIG. 2 is a cross section of the pressurized container enclosing the lamination of soft and medium density foam layers;

FIG. 3 shows details of the pressurized container; and

FIG. 4 shows the support system in place in a conventional hospital bed.

DESCRIPTION OF A PARTICULAR EMBODIMENT Referring to FIG. 1, the pressurized container 1 encloses a lamination of low and medium density plastic foams. The container is covered with an open pore foam layer 2 which acts as a plenum for a supply of ventilating air. This air is supplied from an air compressor 3 through the connecting hose 4. The use of an open pore foam as an air plenum has significant advantages in a support system of this type. For example, the distribution of air from the open pore foam is more uniform than the distribution from a box perforated on its top surface and placed beneath a foam mattress, as described in Science and Medicine, AprilMay, 1969, page 19. It is also more uniform than the flow of air through foam with openings extending all the way through the foam such as is shown in the aforementioned Figman U.S. Pat. No. 3,266,064.

Typically, the foam layer 2 may be a 2-inch thick open pore foam which is rigid enough that patient loading does not pinch off air flow through the pores, but soft enough to conform to the shape of the patients body. One particular foam suitable for use in an open pore (reticulated) polyurethane foam available from Scott Industrial Foam Division of the Scott Paper Company, Chester, Pennsylvania, having 60-30 p.p.i. (pores per inch). A uniform air flow of between 0.5 to 1.5 feet per minute can be obtained from the top surface of the foam layer 2.

In some applications, it will be desirable to include a top foam sheet 5 above the open pore foam 2. The top foam sheet 5 should be a low-density, semiclosed cell (not reticulated) foam. One foam suitable for use is the polyether urethane flexible foam available from Napco Chemical Company, Plainfield, New Jersey, having a nominal density of 1.10-1.35 pounds per cubic foot.

The pressurized container 1, open pore foam layer 2, and top foam sheet 5 are all enclosed in a fabric cover 6. The top of this cover particularly must be made of a material which will stretch, but which does not support the patient by a hammocking effect. The typical material suitable for use is a nylon stretch-type material sold under the trade name of Banlon.

The ventilating air supplied to the hose 4, and the pressurizing air supplied through the hose 4a, are supplied from the air compressor 3. The air compressor unit includes a flow control knob 7 and an airflow indicator 8. The ventilating air may be heated and humidified as required. The air compressor also includes a pressure control 9 and an air pressure indicator 10. The unit should be capable of pressurizing the container 1 up to a pressure of 2 p.s.i. The ability to change the firmness of support supplied by the pressurized container is quite desirable. It allows selecting the firmness particularly suited to the needs and desires of the individual patient. It is also desirable for an individual patient to vary the relative firmness of support from time to time to relieve monotony. One compressor suitable for use is the vane-type air compressor.

Referring to FIG. 2, the pressurized container 1 encloses a lamination of foams, the layers 11-14 being shown. The laminations are of increasing density. That is, in most applications it will be desired to have more dense foam at the bottom. Typically, the layer 11 may be a low-density semiclosed cell polyether urethane foam having an indentation load deflection (lLD) of 25 percent at 9 pounds. Layer 12 typically may have an lLD of 25 percent at 12 pounds; layer 13 an ILD of 25 percent at to pounds and layer 14 an ILD of percent at to pounds.

The foam layers are enclosed in the fabric container I having an excess of fabric at the top to allow deflection uninfiuenced by a hammocking effect. An air fitting 15 supplies the pressurizing air to the container. The container is divided into 4-inch square cells by tensile cords which are fastened to the top of fabric container 1 and to a board 16 in the bottom of the container. Of course, the cells may be larger or smaller than 4 square inches.

The attachment of the tensile cords between the board 16 and the top fabric is shown in FIG. 3. Note that the foam is compressed at the tie down at the corner of each convex pocket. Typical cords 17-20 divide the foam into 4-inch square cells. There is a dome of top fabric between each group of four cords. This allows depression of a particular cell without affecting other cells. The rows of cells along the edges may be pressurized separately from the other cells to allow a firm support along the edges of the bed. This provides firm support so that the edges of the container do not bulge out. This also provides a firm support at the edge when a person is getting into or out of the bed. As shown in FIG. 3, a separate piece of fabric 21 is used along the edge and is folded under to be attached to the baseboard along the line 22. This piece of fabric separates the enclosed cells from the remainder of the cells. This technique is also used to divide the rest of the sealed container into zones which can be separately pressurized.

As shown in FIG. 4, the container is divided into three separate control zones. Ducts 23, 24, and 25 supply separate sources of pressurizing air to the three zones. Zone control of firmness is desirable, for example, to allow the patient to sit on a relatively firm support while his back remains on a soft support. Also, zone control of firmness facilitates handling of a patient in a supine position on a bedpan. The capability of softening a zone under the buttocks while maintaining the remainder of the support firm allows sliding the bedpan under the patient instead of lifting the patient.

FIG. 4 shows the support system in place on a conventional hospital bed. The board 16 (not shown in FIG. 4) is hinged at appropriate places to allow bending along lines at the points 26, 27 and 28 so that the normal raising and lowering functions of a hospital bed can be accommodated. Auxiliary orthopedic support members, such as the contoured heel pad 29, can be inserted in the foam at the appropriate places.

The advantages of the patient support system of the present invention over a conventional hospital bed can be appreciated by the results of a simple pressure test. This test was conducted by inserting a pressure measuring sensor into different places on a conventional mattress and on a polyfoam support system of the present invention. The sensor included an air cell with opposed electrical contacts which closed when the pressure in the air cell was reduced to a measured level. This test is summarized by the following comparison of supporting pressures for a conventional mattress and a polyfoam support.

Conventional mattress Position Polyfoam 165 mm. Hg. 39 5.8

65 mm. Hg. 14 7.5

Sitting on Edge of Bed buttocks midthigh The above comparison demonstrates the advantages of the polyfoam support in more nearly equalizing the distribution of pressure on the supporting areas of the patient. Note, for example, that midcapillary pressure on an average probably runs between 20 and 30 mm. of Hg. Note, also, for example, that the pressure measurements at 4 inches above waist are greater for the polyfoam support than for a conventional mattress. This indicates that the polyfoam support extends up into the small of the back to provide support in that area and to lessen the pressure on the other areas.

While a particular embodiment of the invention has been shown and described, it will be understood that various modifications may be made without departing from the true spirit and scope of the invention. The appended claims are, therefore, intended to cover any such modifications.

What is claimed is:

1. A system for uniformly supporting a patient comprising:

a lamination of layers of lowand medium-density plastic foam,

an airtight container enclosing said lamination,

means for pressurizing said container so that said layers of foam are pressurized to the desired degree of firmness, tensile cords between the top and bottom of said container dividing said lamination of foam into pressurized cells,

an open pore reticulated uniform foam layer on top of said pressurized container,

an outer covering enclosing said pressurized container and said reticulated foam layer, and

a source of ventilating air connected to said open pore reticulated foam layer producing a flow of air from the top of said foam layer for patient ventilation.

2. The system of claim 1, and an air compressor supplying pressurized air to said container and supplying ventilating air to said open pore foam layer.

3. The system recited in claim I wherein said lamination has layers of foam of increasing density from the top to the bottom of said container.

4. The combination recited in claim 2 wherein said air compressor has controls for varying the pressurization of said container so that different degrees of relative firmness of said mattress can be obtained.

5. A system for uniformly supporting a patient comprising:

a lamination of layers of lowand medium-density plastic foam, an airtight container enclosing said lamination, means for pressurizing said container so that said layers of foam are pressurized to the desired degree of firmness,

said pressurized container having separately pressurized cells around the periphery thereof, the cells around the periphery being supplied with air at a higher pressure than the remaining portion of said container to provide firmer support at the edges of said container,

an open pore uniform foam layer on top of said pressurized container, and

a source of ventilating air connected to said open pore foam layer producing a flow of air from the top of said foam layer for patient ventilation.

Claims (5)

1. A system for uniformly supporting a patient comprising: a lamination of layers of low- and medium-density plastic foam, an airtight container enclosing said lamination, means for pressurizing said container so that said layers of foam are pressurized to the desired degree of firmness, tensile cords between the top and bottom of said container dividing said lamination of foam into pressurized cells, an open pore reticulated uniform foam layer on top of said pressurized container, an outer covering enclosing said pressurized container and said reticulated foam layer, and a source of ventilating air connected to said open pore reticulated foam layer producing a flow of air from the top of said foam layer for patient ventilation.
2. The system of claim 1, and an air compressor supplying pressurized air to said container and supplying ventilating air to said open pore foam layer.
3. The system recited in claim 1 wherein said lamination has layers of foam of increasing density from the top to the bottom of said container.
4. The combination recited in claim 2 wherein said air compressor has controls for varying the pressurization of said container so that different degrees of relative firmness of said mattress can be obtained.
5. A sYstem for uniformly supporting a patient comprising: a lamination of layers of low- and medium-density plastic foam, an airtight container enclosing said lamination, means for pressurizing said container so that said layers of foam are pressurized to the desired degree of firmness, said pressurized container having separately pressurized cells around the periphery thereof, the cells around the periphery being supplied with air at a higher pressure than the remaining portion of said container to provide firmer support at the edges of said container, an open pore uniform foam layer on top of said pressurized container, and a source of ventilating air connected to said open pore foam layer producing a flow of air from the top of said foam layer for patient ventilation.
US3644950A 1969-08-01 1969-08-01 Patient support system Expired - Lifetime US3644950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US84671969 true 1969-08-01 1969-08-01

Publications (1)

Publication Number Publication Date
US3644950A true US3644950A (en) 1972-02-29

Family

ID=25298746

Family Applications (1)

Application Number Title Priority Date Filing Date
US3644950A Expired - Lifetime US3644950A (en) 1969-08-01 1969-08-01 Patient support system

Country Status (5)

Country Link
US (1) US3644950A (en)
CA (1) CA922820A (en)
DE (1) DE2038238A1 (en)
FR (1) FR2057835A5 (en)
GB (1) GB1263418A (en)

Cited By (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778851A (en) * 1971-03-02 1973-12-18 Haworth Air Conditioning Ltd Mattress
US3840920A (en) * 1972-01-24 1974-10-15 W Voelker Adjustable mattress for pregnant mothers
US3866606A (en) * 1973-09-04 1975-02-18 Thomas S Hargest Cyclically produced contoured support
US3879776A (en) * 1974-01-10 1975-04-29 Morris Solen Variable tension fluid mattress
EP0072240A1 (en) * 1981-08-10 1983-02-16 Support Systems International, Inc. Improved fluidized supporting apparatus
US4599755A (en) * 1983-11-30 1986-07-15 Fuji Electric Co., Ltd. Bead fluidizing type body supporting device
DE3545311A1 (en) * 1985-12-20 1987-07-02 Rokado Metall Holz Kunststoff water bed
US4694521A (en) * 1985-06-19 1987-09-22 Fuji Electric Co., Ltd Human body supporting device
US4745645A (en) * 1987-08-27 1988-05-24 Mcwilliams Douglas J Inflatable insert for worn mattresses
US4803744A (en) * 1987-05-19 1989-02-14 Hill-Rom Company, Inc. Inflatable bed
US4825488A (en) * 1988-04-13 1989-05-02 Bedford Peter H Support pad for nonambulatory persons
US4835802A (en) * 1988-02-22 1989-06-06 The Kmw Group, Inc. Fluidization patient support control system
US4840425A (en) * 1987-04-21 1989-06-20 Tush Cush, Inc. Varying support cushioned seating assembly and method
US4896389A (en) * 1988-06-10 1990-01-30 S.S.I. Medical Services Of Canada Inc. Inflatable air mattress
US4944060A (en) * 1989-03-03 1990-07-31 Peery John R Mattress assembly for the prevention and treatment of decubitus ulcers
US4946220A (en) * 1987-08-17 1990-08-07 David Wyon Ventilated chair or similar device
US5002336A (en) * 1989-10-18 1991-03-26 Steve Feher Selectively cooled or heated seat and backrest construction
US5163737A (en) * 1991-01-29 1992-11-17 The Bbj Connection Cushion
US5251347A (en) * 1992-01-03 1993-10-12 Stryker Corporation Bed having patient warming apparatus
US5305483A (en) * 1993-03-08 1994-04-26 Watkins Charles E Infant body support and providing air flow for breathing
US5325551A (en) * 1992-06-16 1994-07-05 Stryker Corporation Mattress for retarding development of decubitus ulcers
US5373595A (en) * 1993-03-12 1994-12-20 Irvin Industries Canada Ltd. Air support device
US5542136A (en) * 1994-08-05 1996-08-06 Stryker Corporation Portable mattress for treating decubitus ulcers
WO1996039904A1 (en) * 1992-06-16 1996-12-19 Hargest Thomas S Sudden infant death syndrome prevention apparatus
US5594963A (en) * 1992-08-20 1997-01-21 Kinetic Concepts, Inc. Pressure relief air mattress and related system
US5606754A (en) * 1989-03-09 1997-03-04 Ssi Medical Services, Inc. Vibratory patient support system
US5640728A (en) * 1993-09-30 1997-06-24 Graebe; Robert H. Ventilated access interface and cushion support system
US5701623A (en) * 1996-03-11 1997-12-30 Latex Foam Products, Inc. Composite mattress and mattress topper having a latex foam core
WO1998023236A1 (en) 1996-11-25 1998-06-04 Kinetic Concepts, Inc. Temperature control for use with patient supports
US5794289A (en) * 1995-10-06 1998-08-18 Gaymar Industries, Inc. Mattress for relieving pressure ulcers
US5893184A (en) * 1997-01-10 1999-04-13 Comfortex Health Care Surfaces Pressure reducing backrest cushion with selective pressure point relief
US5983429A (en) * 1994-02-15 1999-11-16 Stacy; Richard B. Method and apparatus for supporting and for supplying therapy to a patient
US6036271A (en) * 1994-06-03 2000-03-14 Span-America Medical Systems, Inc. Self-adjusting pressure relief seating system and methodology
US6052853A (en) * 1995-06-07 2000-04-25 Halo Sleep Systems, Inc. Mattress and method for preventing accumulation of carbon dioxide in bedding
US6684433B2 (en) * 2001-03-07 2004-02-03 Gualtiero G. Giori Pressure adjustable foam support apparatus
US20040031103A1 (en) * 2000-11-07 2004-02-19 Wyatt Charles C Therapeutic mattress assembly
US6721980B1 (en) 1998-10-28 2004-04-20 Hill-Fom Services, Inc. Force optimization surface apparatus and method
US6782574B2 (en) * 2000-07-18 2004-08-31 Span-America Medical Systems, Inc. Air-powered low interface pressure support surface
US20040168255A1 (en) * 1998-05-06 2004-09-02 Hill-Rom Services, Inc. Mattress or cushion structure
US20040177450A1 (en) * 2000-04-18 2004-09-16 Hill-Rom Services, Inc. Patient support apparatus and method
US20060059630A1 (en) * 2004-09-23 2006-03-23 Romano James J Mattress having an air pressure indicator
US20060075569A1 (en) * 2002-09-17 2006-04-13 Gino Giori Adjustable foam mattress
US7036163B2 (en) 2002-02-06 2006-05-02 Halo Innovations, Inc. Furniture cover sheet
US20060191538A1 (en) * 2001-10-22 2006-08-31 Map Medizin-Technologie Gmbh Application device for breathing mask arrangement
US7152264B2 (en) 2001-03-30 2006-12-26 Dennis Boyd Air mattress with pillow top
WO2007009275A1 (en) * 2005-07-20 2007-01-25 Prospective Concepts Ag Pneumatic cushion structure
US20070163052A1 (en) * 1998-05-06 2007-07-19 Romano James J Patient support
US20070266499A1 (en) * 2006-05-09 2007-11-22 Hill-Rom Services, Inc. Pulmonary mattress
US20080022461A1 (en) * 2006-07-26 2008-01-31 Kci Licensing, Inc., Legal Department, Intellectual Property Patient support with welded materials
US20080078032A1 (en) * 2001-03-30 2008-04-03 Dennis Boyd Air mattress with pillow top
US20090271923A1 (en) * 2008-04-30 2009-11-05 Lewis Randall J Patient lifter with intra operative controlled temperature air delivery system
US7694372B1 (en) 2009-04-07 2010-04-13 Dennis Boyd Air mattress
US20100088825A1 (en) * 2008-10-09 2010-04-15 Howell Charles A Fluidizable Bed with Supportive Filter Sheet
US20100101022A1 (en) * 2008-10-24 2010-04-29 Carl William Riley Apparatuses for supporting and monitoring a person
US20110047703A1 (en) * 2009-08-31 2011-03-03 Jean-Francois Tarsaud Lateral tilt device
US20110068935A1 (en) * 2009-09-18 2011-03-24 Riley Carl W Apparatuses for supporting and monitoring a condition of a person
US20110173758A1 (en) * 2008-06-20 2011-07-21 Ricky Jay Fontaine Inflatable mattress and method of operating same
US8397327B2 (en) 2010-08-31 2013-03-19 Span-America Medical Systems, Inc. Bed insert
US20130212806A1 (en) * 2012-02-21 2013-08-22 Qfix Systems, Llc Novel Air Bearing Device And Method For Transferring Patients
WO2013139857A1 (en) * 2012-03-20 2013-09-26 Enmed Ip Ltd. A cushion assembly
US8739339B1 (en) * 2004-05-20 2014-06-03 King Koil Licensing Company, Inc. Multi-layer mattress with an air filtration foundation
US8752220B2 (en) 2009-07-10 2014-06-17 Hill-Rom Services, Inc. Systems for patient support, monitoring and treatment
WO2014113164A1 (en) * 2013-01-18 2014-07-24 Fxi, Inc. Body support system with pressure redistribution and internal air flow guide(s)
US20140237719A1 (en) * 2009-08-31 2014-08-28 Gentherm Incorporated Climate-controlled topper member for beds
US8844073B2 (en) 2010-06-07 2014-09-30 Hill-Rom Services, Inc. Apparatus for supporting and monitoring a person
US8997279B1 (en) * 2004-05-20 2015-04-07 King Koil Licensing Company, Inc. Multi-layer mattress with an air filtration foundation
US20150143629A1 (en) * 2010-09-08 2015-05-28 Hill-Rom Services, Inc. Footboard having integrated foot cushion
US9119479B2 (en) 2008-12-22 2015-09-01 Tempur-Pedic Management, Llc Adjustable-firmness body support and method
US9138064B2 (en) 2013-01-18 2015-09-22 Fxi, Inc. Mattress with combination of pressure redistribution and internal air flow guides
US9165449B2 (en) 2012-05-22 2015-10-20 Hill-Rom Services, Inc. Occupant egress prediction systems, methods and devices
US9271579B2 (en) 2013-04-05 2016-03-01 Rapid Air Llc Adjustable mattress with foam inserts and air chambers
US9308393B1 (en) 2015-01-15 2016-04-12 Dri-Em, Inc. Bed drying device, UV lights for bedsores
US9329076B2 (en) 2012-06-21 2016-05-03 Hill-Rom Services, Inc. Patient support systems and methods of use
US9333136B2 (en) 2013-02-28 2016-05-10 Hill-Rom Services, Inc. Sensors in a mattress cover
US20160150891A1 (en) * 2007-10-15 2016-06-02 Gentherm Incorporated Climate controlled bed assembly with intermediate layer
US9433300B2 (en) 2013-02-28 2016-09-06 Hill-Rom Services, Inc. Topper for a patient surface
US9462893B2 (en) 1998-05-06 2016-10-11 Hill-Rom Services, Inc. Cover system for a patient support surface
US9504620B2 (en) 2014-07-23 2016-11-29 American Sterilizer Company Method of controlling a pressurized mattress system for a support structure
US9552460B2 (en) 2009-09-18 2017-01-24 Hill-Rom Services, Inc. Apparatus for supporting and monitoring a person
US9693921B2 (en) 2008-09-19 2017-07-04 Diacor, Inc. Systems for patient transfer, devices for movement of a patient, and methods for transferring a patient
US9833369B2 (en) 2012-06-21 2017-12-05 Hill-Rom Services, Inc. Patient support systems and methods of use
US9861550B2 (en) 2012-05-22 2018-01-09 Hill-Rom Services, Inc. Adverse condition detection, assessment, and response systems, methods and devices

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7211069A (en) * 1972-01-20 1973-07-24
GB1532219A (en) * 1975-06-28 1978-11-15 Howorth Air Eng Ltd Mattress
US4371997A (en) * 1980-08-25 1983-02-08 Mattson Roy D Adjustable firmness cushion with multiple layered foam-filled compartments
GB8619186D0 (en) * 1986-08-06 1986-09-17 Lowthian P T Cushions
JPS6366962U (en) * 1986-10-21 1988-05-06
GB2265826B (en) * 1992-04-02 1996-10-16 Duncan Shirreffs Bain Low air loss beds
DE19952170C2 (en) * 1999-10-29 2003-01-30 Stefan Hammerschmidt Reusable anti-decubitus mattress

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1228783A (en) * 1915-12-18 1917-06-05 George Edward Kerivan Mattress.
US2997100A (en) * 1958-06-09 1961-08-22 Toyad Corp Pneumatic foam structures
US3017642A (en) * 1959-11-27 1962-01-23 Holiday Line Inc Self-inflating cushion
US3051601A (en) * 1958-11-07 1962-08-28 Gen Tire & Rubber Co Laminated polyurethane foam cushion
US3082438A (en) * 1961-02-10 1963-03-26 Nachman Corp Bed spring assembly
US3118153A (en) * 1960-10-21 1964-01-21 Davidson Rubber Company Inc Upholstery corner construction
US3148391A (en) * 1961-11-24 1964-09-15 John K Whitney Support device
US3266064A (en) * 1963-03-29 1966-08-16 Figman Murray Ventilated mattress-box spring combination
US3330598A (en) * 1966-02-14 1967-07-11 Whiteside George Harold Pneumatic seat
US3393937A (en) * 1965-12-30 1968-07-23 Wehmer Felix Supports for the human body

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1228783A (en) * 1915-12-18 1917-06-05 George Edward Kerivan Mattress.
US2997100A (en) * 1958-06-09 1961-08-22 Toyad Corp Pneumatic foam structures
US3051601A (en) * 1958-11-07 1962-08-28 Gen Tire & Rubber Co Laminated polyurethane foam cushion
US3017642A (en) * 1959-11-27 1962-01-23 Holiday Line Inc Self-inflating cushion
US3118153A (en) * 1960-10-21 1964-01-21 Davidson Rubber Company Inc Upholstery corner construction
US3082438A (en) * 1961-02-10 1963-03-26 Nachman Corp Bed spring assembly
US3148391A (en) * 1961-11-24 1964-09-15 John K Whitney Support device
US3266064A (en) * 1963-03-29 1966-08-16 Figman Murray Ventilated mattress-box spring combination
US3393937A (en) * 1965-12-30 1968-07-23 Wehmer Felix Supports for the human body
US3330598A (en) * 1966-02-14 1967-07-11 Whiteside George Harold Pneumatic seat

Cited By (138)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778851A (en) * 1971-03-02 1973-12-18 Haworth Air Conditioning Ltd Mattress
US3840920A (en) * 1972-01-24 1974-10-15 W Voelker Adjustable mattress for pregnant mothers
US3866606A (en) * 1973-09-04 1975-02-18 Thomas S Hargest Cyclically produced contoured support
US3879776A (en) * 1974-01-10 1975-04-29 Morris Solen Variable tension fluid mattress
EP0072240A1 (en) * 1981-08-10 1983-02-16 Support Systems International, Inc. Improved fluidized supporting apparatus
US4599755A (en) * 1983-11-30 1986-07-15 Fuji Electric Co., Ltd. Bead fluidizing type body supporting device
US4694521A (en) * 1985-06-19 1987-09-22 Fuji Electric Co., Ltd Human body supporting device
DE3545311A1 (en) * 1985-12-20 1987-07-02 Rokado Metall Holz Kunststoff water bed
US4840425A (en) * 1987-04-21 1989-06-20 Tush Cush, Inc. Varying support cushioned seating assembly and method
JPS6446413A (en) * 1987-05-19 1989-02-20 Hill Rom Co Inc Expansible type bed
JP2713984B2 (en) 1987-05-19 1998-02-16 ヒル−ロム カンパニー,インコーポレイティド Improved inflatable bed apparatus, and a method of controlling the firmness of an inflatable bed
US4803744A (en) * 1987-05-19 1989-02-14 Hill-Rom Company, Inc. Inflatable bed
US4946220A (en) * 1987-08-17 1990-08-07 David Wyon Ventilated chair or similar device
US4745645A (en) * 1987-08-27 1988-05-24 Mcwilliams Douglas J Inflatable insert for worn mattresses
US4835802A (en) * 1988-02-22 1989-06-06 The Kmw Group, Inc. Fluidization patient support control system
US4825488A (en) * 1988-04-13 1989-05-02 Bedford Peter H Support pad for nonambulatory persons
US4896389A (en) * 1988-06-10 1990-01-30 S.S.I. Medical Services Of Canada Inc. Inflatable air mattress
WO1992002200A1 (en) * 1989-03-03 1992-02-20 Therapeutic Environments, Inc. Mattress assembly for the prevention and treatment of decubitus ulcers
US4944060A (en) * 1989-03-03 1990-07-31 Peery John R Mattress assembly for the prevention and treatment of decubitus ulcers
US6415814B1 (en) 1989-03-09 2002-07-09 Hill-Rom Services, Inc. Vibratory patient support system
US5606754A (en) * 1989-03-09 1997-03-04 Ssi Medical Services, Inc. Vibratory patient support system
US20050034764A1 (en) * 1989-03-09 2005-02-17 Hanh Barry D. Patient support system
US6820640B2 (en) 1989-03-09 2004-11-23 Hill-Rom Services, Inc. Vibratory patient support system
US6098222A (en) * 1989-03-09 2000-08-08 Hill-Rom Company, Inc. Vibratory patient support system
US5002336A (en) * 1989-10-18 1991-03-26 Steve Feher Selectively cooled or heated seat and backrest construction
US5163737A (en) * 1991-01-29 1992-11-17 The Bbj Connection Cushion
US5251347A (en) * 1992-01-03 1993-10-12 Stryker Corporation Bed having patient warming apparatus
WO1996039904A1 (en) * 1992-06-16 1996-12-19 Hargest Thomas S Sudden infant death syndrome prevention apparatus
US5325551A (en) * 1992-06-16 1994-07-05 Stryker Corporation Mattress for retarding development of decubitus ulcers
US5787534A (en) * 1992-06-16 1998-08-04 Hargest; Thomas S. Sudden infant death syndrome prevention apparatus and method and patient surface
US5594963A (en) * 1992-08-20 1997-01-21 Kinetic Concepts, Inc. Pressure relief air mattress and related system
US5675852A (en) * 1993-03-08 1997-10-14 Watkins; Charles Eugene Infant body support pad
US5305483A (en) * 1993-03-08 1994-04-26 Watkins Charles E Infant body support and providing air flow for breathing
US5373595A (en) * 1993-03-12 1994-12-20 Irvin Industries Canada Ltd. Air support device
US5640728A (en) * 1993-09-30 1997-06-24 Graebe; Robert H. Ventilated access interface and cushion support system
US5983429A (en) * 1994-02-15 1999-11-16 Stacy; Richard B. Method and apparatus for supporting and for supplying therapy to a patient
US6036271A (en) * 1994-06-03 2000-03-14 Span-America Medical Systems, Inc. Self-adjusting pressure relief seating system and methodology
US5542136A (en) * 1994-08-05 1996-08-06 Stryker Corporation Portable mattress for treating decubitus ulcers
US6052853A (en) * 1995-06-07 2000-04-25 Halo Sleep Systems, Inc. Mattress and method for preventing accumulation of carbon dioxide in bedding
US6370718B1 (en) 1995-06-07 2002-04-16 Halo Innovations, Inc. Mattress and method for preventing accumulation of carbon dioxide in bedding
US5794289A (en) * 1995-10-06 1998-08-18 Gaymar Industries, Inc. Mattress for relieving pressure ulcers
US5701623A (en) * 1996-03-11 1997-12-30 Latex Foam Products, Inc. Composite mattress and mattress topper having a latex foam core
WO1998023236A1 (en) 1996-11-25 1998-06-04 Kinetic Concepts, Inc. Temperature control for use with patient supports
US5893184A (en) * 1997-01-10 1999-04-13 Comfortex Health Care Surfaces Pressure reducing backrest cushion with selective pressure point relief
US6209159B1 (en) 1997-01-10 2001-04-03 Comfortex Health Care Surfaces Pressure reducing cushion with selective pressure point relief
US20070163052A1 (en) * 1998-05-06 2007-07-19 Romano James J Patient support
US7191480B2 (en) 1998-05-06 2007-03-20 Hill-Rom Services, Inc. Mattress or cushion structure
US20040168255A1 (en) * 1998-05-06 2004-09-02 Hill-Rom Services, Inc. Mattress or cushion structure
US7480953B2 (en) * 1998-05-06 2009-01-27 Hill-Rom Services, Inc. Patient support
US7617555B2 (en) 1998-05-06 2009-11-17 Hill-Rom Services, Inc. Patient support surface
US8601620B2 (en) 1998-05-06 2013-12-10 Hill-Rom Services, Inc. Cover system for a patient support surface
US20100095461A1 (en) * 1998-05-06 2010-04-22 Romano James J Patient support surface
US7966680B2 (en) 1998-05-06 2011-06-28 Hill-Rom Services, Inc. Patient support surface
US9462893B2 (en) 1998-05-06 2016-10-11 Hill-Rom Services, Inc. Cover system for a patient support surface
US20080060138A1 (en) * 1998-10-28 2008-03-13 Price James H Patient support surface with physiological sensors
US8031080B2 (en) 1998-10-28 2011-10-04 Hill-Rom Services, Inc. Patient support surface with vital signs sensors
US20040194220A1 (en) * 1998-10-28 2004-10-07 Hill-Rom Services, Inc. Force optimization surface apparatus and method
US20090183312A1 (en) * 1998-10-28 2009-07-23 Price James H Patient support surface with vital signs sensors
US7515059B2 (en) 1998-10-28 2009-04-07 Hill-Rom Services, Inc. Patient support surface with physiological sensors
US6721980B1 (en) 1998-10-28 2004-04-20 Hill-Fom Services, Inc. Force optimization surface apparatus and method
US7330127B2 (en) 1998-10-28 2008-02-12 Hill-Rom Services, Inc. Force optimization surface apparatus and method
US20040177450A1 (en) * 2000-04-18 2004-09-16 Hill-Rom Services, Inc. Patient support apparatus and method
US6782574B2 (en) * 2000-07-18 2004-08-31 Span-America Medical Systems, Inc. Air-powered low interface pressure support surface
US7296315B2 (en) * 2000-07-18 2007-11-20 Span-America Medical Systems, Inc. Air-powered low interface pressure support surface
US20070234481A1 (en) * 2000-07-18 2007-10-11 Totton Wanda J Air-powered low interface pressure support surface
US20050022308A1 (en) * 2000-07-18 2005-02-03 Totton Wanda J. Air-powered low interface pressure support surface
US8789224B2 (en) 2000-11-07 2014-07-29 Tempur-Pedic Managemant, LLC Therapeutic mattress assembly
US20040031103A1 (en) * 2000-11-07 2004-02-19 Wyatt Charles C Therapeutic mattress assembly
EP2140847A3 (en) * 2000-11-07 2010-11-17 Tempur World, LLC Therapeutic mattress assembly
US6684433B2 (en) * 2001-03-07 2004-02-03 Gualtiero G. Giori Pressure adjustable foam support apparatus
US20070113350A1 (en) * 2001-03-30 2007-05-24 Dennis Boyd Air Mattress with Pillow Top
US20080078032A1 (en) * 2001-03-30 2008-04-03 Dennis Boyd Air mattress with pillow top
US7367073B2 (en) 2001-03-30 2008-05-06 Dennis Boyd Air mattress with pillow top
US7152264B2 (en) 2001-03-30 2006-12-26 Dennis Boyd Air mattress with pillow top
US7610642B2 (en) 2001-03-30 2009-11-03 Dennis Boyd Air mattress with pillow top
US20060191538A1 (en) * 2001-10-22 2006-08-31 Map Medizin-Technologie Gmbh Application device for breathing mask arrangement
US20050005363A1 (en) * 2001-10-30 2005-01-13 Gualtiero Giori Pressure adjustable foam support apparatus
US7036163B2 (en) 2002-02-06 2006-05-02 Halo Innovations, Inc. Furniture cover sheet
US20060075569A1 (en) * 2002-09-17 2006-04-13 Gino Giori Adjustable foam mattress
US8739339B1 (en) * 2004-05-20 2014-06-03 King Koil Licensing Company, Inc. Multi-layer mattress with an air filtration foundation
US8997279B1 (en) * 2004-05-20 2015-04-07 King Koil Licensing Company, Inc. Multi-layer mattress with an air filtration foundation
US20060059630A1 (en) * 2004-09-23 2006-03-23 Romano James J Mattress having an air pressure indicator
US7287290B2 (en) * 2004-09-23 2007-10-30 Hill-Rom Services, Inc. Mattress having an air pressure indicator
WO2007009275A1 (en) * 2005-07-20 2007-01-25 Prospective Concepts Ag Pneumatic cushion structure
US7975335B2 (en) 2006-05-09 2011-07-12 Hill-Rom Services, Inc. Pulmonary mattress
US8474074B2 (en) 2006-05-09 2013-07-02 Hill-Rom Services, Inc. Pulmonary mattress
US20070266499A1 (en) * 2006-05-09 2007-11-22 Hill-Rom Services, Inc. Pulmonary mattress
CN101478942B (en) 2006-07-26 2012-04-04 凯希特许有限公司 Patient support with welded materials
US20080022461A1 (en) * 2006-07-26 2008-01-31 Kci Licensing, Inc., Legal Department, Intellectual Property Patient support with welded materials
WO2008014277A3 (en) * 2006-07-26 2008-05-08 Alan L Bartlett Patient support with welded materials
US20160150891A1 (en) * 2007-10-15 2016-06-02 Gentherm Incorporated Climate controlled bed assembly with intermediate layer
US9974394B2 (en) * 2007-10-15 2018-05-22 Gentherm Incorporated Climate controlled bed assembly with intermediate layer
US8555440B2 (en) 2008-04-30 2013-10-15 Randall J. Lewis Patient lifter with intra operative controlled temperature air delivery system
US20090271923A1 (en) * 2008-04-30 2009-11-05 Lewis Randall J Patient lifter with intra operative controlled temperature air delivery system
US20110173758A1 (en) * 2008-06-20 2011-07-21 Ricky Jay Fontaine Inflatable mattress and method of operating same
US9693921B2 (en) 2008-09-19 2017-07-04 Diacor, Inc. Systems for patient transfer, devices for movement of a patient, and methods for transferring a patient
US20100088825A1 (en) * 2008-10-09 2010-04-15 Howell Charles A Fluidizable Bed with Supportive Filter Sheet
US8281433B2 (en) 2008-10-24 2012-10-09 Hill-Rom Services, Inc. Apparatuses for supporting and monitoring a person
US20100101022A1 (en) * 2008-10-24 2010-04-29 Carl William Riley Apparatuses for supporting and monitoring a person
US9119479B2 (en) 2008-12-22 2015-09-01 Tempur-Pedic Management, Llc Adjustable-firmness body support and method
US7694372B1 (en) 2009-04-07 2010-04-13 Dennis Boyd Air mattress
US8752220B2 (en) 2009-07-10 2014-06-17 Hill-Rom Services, Inc. Systems for patient support, monitoring and treatment
US8429774B2 (en) 2009-08-31 2013-04-30 Hill-Rom Industries Sa Lateral tilt device
US8601622B1 (en) 2009-08-31 2013-12-10 Hill-Rom Industries S.A. Patient support apparatus including a lateral tilt device
US9814641B2 (en) * 2009-08-31 2017-11-14 Genthrem Incorporated Climate-controlled topper member for beds
US20110047703A1 (en) * 2009-08-31 2011-03-03 Jean-Francois Tarsaud Lateral tilt device
US20140237719A1 (en) * 2009-08-31 2014-08-28 Gentherm Incorporated Climate-controlled topper member for beds
US8525680B2 (en) 2009-09-18 2013-09-03 Hill-Rom Services, Inc. Apparatuses for supporting and monitoring a condition of a person
US9775758B2 (en) 2009-09-18 2017-10-03 Hill-Rom Services, Inc. Person support apparatus having physiological sensor
US8525679B2 (en) 2009-09-18 2013-09-03 Hill-Rom Services, Inc. Sensor control for apparatuses for supporting and monitoring a person
US9013315B2 (en) 2009-09-18 2015-04-21 Hill-Rom Services, Inc. Sensor control for apparatuses for supporting and monitoring a person
US9549675B2 (en) 2009-09-18 2017-01-24 Hill-Rom Services, Inc. Sensor control for apparatuses for supporting and monitoring a person
US9044204B2 (en) 2009-09-18 2015-06-02 Hill-Rom Services, Inc. Apparatuses for supporting and monitoring a condition of a person
US20110068928A1 (en) * 2009-09-18 2011-03-24 Riley Carl W Sensor control for apparatuses for supporting and monitoring a person
US9552460B2 (en) 2009-09-18 2017-01-24 Hill-Rom Services, Inc. Apparatus for supporting and monitoring a person
US20110068935A1 (en) * 2009-09-18 2011-03-24 Riley Carl W Apparatuses for supporting and monitoring a condition of a person
US9549705B2 (en) 2009-09-18 2017-01-24 Hill-Rom Services, Inc. Apparatuses for supporting and monitoring a condition of a person
US8844073B2 (en) 2010-06-07 2014-09-30 Hill-Rom Services, Inc. Apparatus for supporting and monitoring a person
US8397327B2 (en) 2010-08-31 2013-03-19 Span-America Medical Systems, Inc. Bed insert
US20150143629A1 (en) * 2010-09-08 2015-05-28 Hill-Rom Services, Inc. Footboard having integrated foot cushion
US20130212806A1 (en) * 2012-02-21 2013-08-22 Qfix Systems, Llc Novel Air Bearing Device And Method For Transferring Patients
WO2013139857A1 (en) * 2012-03-20 2013-09-26 Enmed Ip Ltd. A cushion assembly
US9761109B2 (en) 2012-05-22 2017-09-12 Hill-Rom Services, Inc. Occupant egress prediction systems, methods and devices
US9165449B2 (en) 2012-05-22 2015-10-20 Hill-Rom Services, Inc. Occupant egress prediction systems, methods and devices
US9978244B2 (en) 2012-05-22 2018-05-22 Hill-Rom Services, Inc. Occupant falls risk determination systems, methods and devices
US9552714B2 (en) 2012-05-22 2017-01-24 Hill-Rom Services, Inc. Occupant egress prediction systems, methods and devices
US9861550B2 (en) 2012-05-22 2018-01-09 Hill-Rom Services, Inc. Adverse condition detection, assessment, and response systems, methods and devices
US9655457B2 (en) 2012-06-21 2017-05-23 Hill-Rom Services, Inc. Patient support systems and methods of use
US9329076B2 (en) 2012-06-21 2016-05-03 Hill-Rom Services, Inc. Patient support systems and methods of use
US9833369B2 (en) 2012-06-21 2017-12-05 Hill-Rom Services, Inc. Patient support systems and methods of use
WO2014113164A1 (en) * 2013-01-18 2014-07-24 Fxi, Inc. Body support system with pressure redistribution and internal air flow guide(s)
US9138064B2 (en) 2013-01-18 2015-09-22 Fxi, Inc. Mattress with combination of pressure redistribution and internal air flow guides
US9392875B2 (en) 2013-01-18 2016-07-19 Fxi, Inc. Body support system with combination of pressure redistribution and internal air flow guide(s) for withdrawing heat and moisture away from body reclining on support surface of body support system
US9433300B2 (en) 2013-02-28 2016-09-06 Hill-Rom Services, Inc. Topper for a patient surface
US9333136B2 (en) 2013-02-28 2016-05-10 Hill-Rom Services, Inc. Sensors in a mattress cover
US9271579B2 (en) 2013-04-05 2016-03-01 Rapid Air Llc Adjustable mattress with foam inserts and air chambers
US9504620B2 (en) 2014-07-23 2016-11-29 American Sterilizer Company Method of controlling a pressurized mattress system for a support structure
US9308393B1 (en) 2015-01-15 2016-04-12 Dri-Em, Inc. Bed drying device, UV lights for bedsores

Also Published As

Publication number Publication date Type
CA922820A (en) 1973-03-13 grant
CA922820A1 (en) grant
GB1263418A (en) 1972-02-09 application
DE2038238A1 (en) 1971-02-11 application
FR2057835A5 (en) 1971-05-21 application

Similar Documents

Publication Publication Date Title
US3428974A (en) Compartmented air mattress
US3611455A (en) Flotation pad
US3462775A (en) Supporting means to prevent parts of the body from contracting bed-sores
US3574873A (en) Fluid-type support structure for simulating flotation-type support
US3308489A (en) Cushion for resting legs high
US4999867A (en) Air mattress and method for adjusting it
US5387177A (en) Adjustable pediatric incubator nest
US4541135A (en) Air mattress
US7409735B2 (en) Dynamic cellular person support surface
US5568660A (en) Wheelchair cushion and cover
US5113539A (en) Adjustable firmness coil spring mattress with inflatable tubes
US3811140A (en) Body support device
US5561875A (en) Vacuum/heat formed cushion supported on a fluid permeable manifold
US4796948A (en) Patient support system for wheelchairs and the like
US4371997A (en) Adjustable firmness cushion with multiple layered foam-filled compartments
US6901617B2 (en) Multi-layer cushion and cover
US6625830B2 (en) Wheelchair cushion
US4213213A (en) Support device
US5107558A (en) Mattress with removable insert
US5433505A (en) Adjustable seat and back cushion
US5487197A (en) Pneumatic wheelchair cushion
US4706313A (en) Decubitus ulcer mattress
US6115861A (en) Mattress structure
US5509155A (en) Alternating low air loss pressure overlay for patient bedside chair
US6823549B1 (en) Alternating pressure cushion with inflatable lumbar support