US3639927A - Mattress for invalids - Google Patents

Mattress for invalids Download PDF

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US3639927A
US3639927A US34094A US3639927DA US3639927A US 3639927 A US3639927 A US 3639927A US 34094 A US34094 A US 34094A US 3639927D A US3639927D A US 3639927DA US 3639927 A US3639927 A US 3639927A
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Prior art keywords
mattress
inserts
frame
patient
cutout
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Expired - Lifetime
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US34094A
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Josef Munch
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Otto Bock Orthopadische Industrie KG
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Otto Bock Orthopadische Industrie KG
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
    • A47C27/146—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities on the outside surface of the mattress or cushion
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/148—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays of different resilience
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/15—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays consisting of two or more layers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05715—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with modular blocks, or inserts, with layers of different material

Definitions

  • ABSTRACT A frame of foam polymer with a rectangular cutout, positioned to underlie the major part of the body of a patient recumbent thereon, rests on a baseplate serving as a support for a multiplicity of square or rectangular inserts of like foam material detachably pasted onto the base so as to be removable at locations proximal to a pressure-sensitive part of the patients body.
  • a transverse pad at the foot end of the mattress has vertical recesses open toward the head end to receive the feet of the patient whose legs rest on anatomically shaped wedge pieces which extend into these recesses but tenninate short of their closed ends to leave room for the unsupported heels of the patient.
  • the general object of my present invention to provide a mattress construction which can be quickly and easily adapted to specific requirements for the purpose of relieving local pressure on the body of a patient.
  • a related object is to provide means in combination with such a mattress for keeping the feet of the patient free from pressure of both the underlying mattress and an overlying blanket.
  • a further object is to provide a mattress, e.g., for hospital beds, which can be quickly restored to use by a replacement of certain parts upon being soiled or otherwise damaged.
  • I provide a mat tress in the form of a generally rectangular horizontal frame, commensurate with the body measurements of a patient whom it is intended to support, which has a central longitudinal cutout positioned to underlie the major part of the patients body in a recumbent position, this cutout being filled by a multiplicity of preferably rectangular (e.g., square) inserts closely juxtaposed therein to form a continuous surface with the frame.
  • Both the frame and the inserts are made of resilient cushioning material, preferably a foam polymer, as is a headrest carried by the mattress.
  • the inserts are individually and selectively removable from the frame to relieve the pressure upon sensitive parts of the patients body.
  • the frame and the inserts are supported on a baseplate which underlies the cutout and may have an outline substantially registering with that of the frame.
  • the inserts may be detachably pasted onto that baseplate, as with the aid of a pressure-activated adhesive.
  • the foot end of the mattress frame carries a transverse pad formed with a pair of vertical recesses which are open toward the head end to receive the feet of the patient.
  • a blanket covering the lower body of the patient can then be draped over this pad so as to stay clear of his toes for the avoidance of possible discomfort.
  • the pad may be made of the same polymeric foam material as the rest of the mattress structure.
  • FIGS. 2, 4 and 6 are plan views of three different embodiments of my invention.
  • FIGS. 1, 3 and are cross-sectional views taken on lines I- l, lllIII and V-V of FIGS. 2, 4 and 6, respectively.
  • the mattress shown in FIGS. 1 and 2 comprises a rectangular frame 2 of foam plastic resting on a rigid baseplate l coextensive therewith.
  • Frame 2 has a rectangular central cutout 7, occupied by an array of substantially identical inserts 3 of like foam plastic and square outline.
  • the inserts 3 are detachable cemented onto the baseplate l by a pressure-activated adhe' sive which also serves to hold the frame 2 in position.
  • a headrest 4, also of foam plastic, is similarly cemented onto the right-hand end of frame 2 just beyond the cutout 7.
  • FIGS. 5 and 6 show a mattress similar to that of FIGS. I and 2 with the addition of a pad 5, likewise of foam plastic, detachably cemented onto the frame 2 just beyond the end of cutout 7.
  • a part of the frame 2 and some of the inserts 3 are overlain by two pieces wedge pieces 6 which are anatomically shaped to conform to the hollow of the knees of the patient and to support his shanks down to the region of the ankles.
  • Two forwardly open vertical recesses 5a in pad 5 receive the ends of the wedge pieces 6 with enough clearance to accommodate the heels of the patient whose toes do not quite reach the top of the pad so that they will not be contacted by an overhanging blanket 8.
  • the wedge pieces 6 may be strips of foam plastic also detachably cemented to the underlying mattress portions.
  • a mattress comprising a generally rectangular horizontal frame of resilient material provided with a central longitudinal cutout positioned to underlie the major part of the body of a patient recumbent thereon, a multiplicity of resilient inserts closely juxtaposed in said cutout to form a continuous surface with said frame, said inserts being selectively removable from said frame to relieve pressure on a sensitive part of the pa tients body a transverse pad extending entirely across said frame at the foot end thereof, said pad having a pair of vertical recesses open toward and defined in part by a vertical wall facing the head end for receiving the feet of the patient, and two elongate wedge pieces shaped to support the legs of the patient up to the thighs, said wedge pieces rising from said surface and extending into said recesses while being spaced from the respective walls thereof by a distance sufficient to accommodate the unsupported heels of the patient.
  • a mattress as defined in claim I further comprising a baseplate underlying said cutout and supporting said inserts.
  • said pad, said wedge pieces, said frame and said inserts consist essentially of foam polymer.

Abstract

A frame of foam polymer with a rectangular cutout, positioned to underlie the major part of the body of a patient recumbent thereon, rests on a baseplate serving as a support for a multiplicity of square or rectangular inserts of like foam material detachably pasted onto the base so as to be removable at locations proximal to a pressure-sensitive part of the patient''s body. A transverse pad at the foot end of the mattress has vertical recesses open toward the head end to receive the feet of the patient whose legs rest on anatomically shaped wedge pieces which extend into these recesses but terminate short of their closed ends to leave room for the unsupported heels of the patient.

Description

[ 1 Feb. 8, 1972 [541 MATTRESS FOR INVALIDS [72] Inventor: Josef Munch, Duisburg-Hamborn, Germany [73] Assignee: Firms Otto Bock Orthopadische lndustrie KG., Duderstadt, Germany [22] Filed: May 1,1970
[21] Appl.No.: 34,094
3,160,549 12/1964 Caldwelletal. ..161/159 3,345,656 10/1967 Steinman ..5/327 R 3,378,861 4/1968 Lousberg ....5/91 X 3,451,071 6/1969 Whiteley... ..5/91 3,464,842 9/1969 Jackstadt..... 161/406 X 3,481,593 12/1969 Allen et al.... .....5/327 R 3,063,749 1 1/ 1962 Struble et al ..297/218 Primary Examiner-Casmir A. Nunberg Attorney-Karl F. Ross [57] ABSTRACT A frame of foam polymer with a rectangular cutout, positioned to underlie the major part of the body of a patient recumbent thereon, rests on a baseplate serving as a support for a multiplicity of square or rectangular inserts of like foam material detachably pasted onto the base so as to be removable at locations proximal to a pressure-sensitive part of the patients body. A transverse pad at the foot end of the mattress has vertical recesses open toward the head end to receive the feet of the patient whose legs rest on anatomically shaped wedge pieces which extend into these recesses but tenninate short of their closed ends to leave room for the unsupported heels of the patient.
8 Claims, 6 Drawing Figures PATENTED FEB 81972 3,639,927
FIG. I 4
PRESSURE- ACTIVATED A DHESIVE I N VEN TOR.
K M (R988 Attorney MATTRESS FOR INVALIDS My present invention relates to a mattress to be used by invalids and other persons with oversensitivity to external pressure on parts of their body.
Amputees, paraplegics and other persons react with varying degrees of discomfort to such pressures which frequently lead to bruises at points of concentrated stress e.g., in the region of the hips or buttocks in the case of a recumbent body. It is therefore desirable to provide for a more even stress distribution by spreading the area of contact between the body and the mattress, on which the patient is resting, a task calling for a wide variety of mattress configurations according to the size of the patient and the nature of the ailment.
It is, therefore, the general object of my present invention to provide a mattress construction which can be quickly and easily adapted to specific requirements for the purpose of relieving local pressure on the body of a patient.
A related object is to provide means in combination with such a mattress for keeping the feet of the patient free from pressure of both the underlying mattress and an overlying blanket.
A further object is to provide a mattress, e.g., for hospital beds, which can be quickly restored to use by a replacement of certain parts upon being soiled or otherwise damaged.
In accordance with he present invention, I provide a mat tress in the form of a generally rectangular horizontal frame, commensurate with the body measurements of a patient whom it is intended to support, which has a central longitudinal cutout positioned to underlie the major part of the patients body in a recumbent position, this cutout being filled by a multiplicity of preferably rectangular (e.g., square) inserts closely juxtaposed therein to form a continuous surface with the frame. Both the frame and the inserts are made of resilient cushioning material, preferably a foam polymer, as is a headrest carried by the mattress. The inserts are individually and selectively removable from the frame to relieve the pressure upon sensitive parts of the patients body. For this purpose, advantageously, the frame and the inserts are supported on a baseplate which underlies the cutout and may have an outline substantially registering with that of the frame. The inserts may be detachably pasted onto that baseplate, as with the aid of a pressure-activated adhesive.
According to another feature of my invention, the foot end of the mattress frame carries a transverse pad formed with a pair of vertical recesses which are open toward the head end to receive the feet of the patient. Two elongate wedge pieces, shaped to support the legs of the patient up to the thighs, rise from the mattress and extend into these recesses but terminate short of the closed ends of the latter by a distance sufficient to accommodate the unsupported heels of the patient so as to keep them free from pressure. A blanket covering the lower body of the patient can then be draped over this pad so as to stay clear of his toes for the avoidance of possible discomfort. The pad may be made of the same polymeric foam material as the rest of the mattress structure.
The invention will be described in greater detail with reference to the accompanying drawing in which:
FIGS. 2, 4 and 6 are plan views of three different embodiments of my invention; and
FIGS. 1, 3 and are cross-sectional views taken on lines I- l, lllIII and V-V of FIGS. 2, 4 and 6, respectively.
The mattress shown in FIGS. 1 and 2 comprises a rectangular frame 2 of foam plastic resting on a rigid baseplate l coextensive therewith. Frame 2 has a rectangular central cutout 7, occupied by an array of substantially identical inserts 3 of like foam plastic and square outline. The inserts 3 are detachable cemented onto the baseplate l by a pressure-activated adhe' sive which also serves to hold the frame 2 in position. A headrest 4, also of foam plastic, is similarly cemented onto the right-hand end of frame 2 just beyond the cutout 7.
As shown in FIGS. 3 and 4, several of the squares 3 of the preceding embodiment may be combined into larger inserts 3a gsix squares), 3!: (nine squares) or divided into smaller strips c; the latter may be partly removed, for example, at a location where the stump of a leg amputee overhangs the middle section 3a.
FIGS. 5 and 6 show a mattress similar to that of FIGS. I and 2 with the addition of a pad 5, likewise of foam plastic, detachably cemented onto the frame 2 just beyond the end of cutout 7. A part of the frame 2 and some of the inserts 3 are overlain by two pieces wedge pieces 6 which are anatomically shaped to conform to the hollow of the knees of the patient and to support his shanks down to the region of the ankles. Two forwardly open vertical recesses 5a in pad 5 receive the ends of the wedge pieces 6 with enough clearance to accommodate the heels of the patient whose toes do not quite reach the top of the pad so that they will not be contacted by an overhanging blanket 8. The wedge pieces 6 may be strips of foam plastic also detachably cemented to the underlying mattress portions.
It will be apparent that, in the case of a soiled mattress, only some of the inserts 3, 3a-3c will usually have to be replaced to provide a clean supporting surface for the patient.
I claim:
1. A mattress comprising a generally rectangular horizontal frame of resilient material provided with a central longitudinal cutout positioned to underlie the major part of the body of a patient recumbent thereon, a multiplicity of resilient inserts closely juxtaposed in said cutout to form a continuous surface with said frame, said inserts being selectively removable from said frame to relieve pressure on a sensitive part of the pa tients body a transverse pad extending entirely across said frame at the foot end thereof, said pad having a pair of vertical recesses open toward and defined in part by a vertical wall facing the head end for receiving the feet of the patient, and two elongate wedge pieces shaped to support the legs of the patient up to the thighs, said wedge pieces rising from said surface and extending into said recesses while being spaced from the respective walls thereof by a distance sufficient to accommodate the unsupported heels of the patient.
2. A mattress as defined in claim I, further comprising a baseplate underlying said cutout and supporting said inserts.
3. A mattress as defined in claim 2 wherein said inserts are adhesively but detachable secured to said baseplate said pad is adhesively but detachably secured to said frame and said wedge pieces are adhesively but detachable secured to and overlie said inserts.
4. A mattress as defined in claim 3 wherein said baseplate has an outline substantially registering with that of said frame.
5. A mattress as defined in claim 4 wherein said inserts are provided with pressure-activated adhesive layers on their undersides.
6. A mattress as defined in claim 3 wherein said inserts are rectangular 7. A mattress as defined in claim 3 wherein said pad, said wedge pieces, said frame and said inserts consist essentially of foam polymer.
8. A mattress as defined in claim 3, further comprising a headrest at the head end of said frame, said cutout terminating substantially at said headrest.

Claims (8)

1. A mattress comprising a generally rectangular horizontal frame of resilient material provided with a central longitudinal cutout positioned to underlie the major part of the body of a patient recumbent thereon, a multiplicity of resilient inserts closely juxtaposed in said cutout to form a continuous surface with said frame, said inserts being selectively removable from said frame to relieve pressure on a sensitive part of the patient''s body, a transverse pad extending entirely across said frame at the foot end thereof, said pad having a pair of vertical recesses open toward and defined in part by a vertical wall facing the head end for receiving the feet of the patient, and two elongate wedge pieces shaped to support the legs of the patient up to the thighs, said wedge pieces rising from said surface and extending into said recesses while being spaced from the respective walls thereof by a distance sufficient to accommodate the unsupported heels of the patient.
2. A mattress as defined in claim 1, further comprising a baseplate underlying said cutout and supporting said inserts.
3. A mattress as defined in claim 2 wherein said inserts are adhesively but detachably secured to said baseplate, said pad is adhesively but detachably secured to said frame and said wedge pieces are adhesively but detachably secured to and overlie said inserts.
4. A mattress as defined in claim 3 wherein said baseplate has an outline substantially registering with that of said frame.
5. A mattress as defined in claim 4 wherein said inserts are provided with pressure-activated adhesive layers on their undersides.
6. A mattress as defined in claim 3 wherein said inserts are rectangular.
7. A mattress as defined in claim 3 wherein said pad, said wedge pieces, said frame and said inserts consist essentially of foam polymer.
8. A mattress as defined in claim 3, further comprising a headrest at the head end of said frame, said cutout terminating substantially at said headrest.
US34094A 1969-05-07 1970-05-04 Mattress for invalids Expired - Lifetime US3639927A (en)

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DE6918374U DE6918374U (en) 1969-05-07 1969-05-07 MULTI-PIECE FOAM MATTRESS

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Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742528A (en) * 1970-05-05 1973-07-03 Bock Orthopaedische Ind Kg Fa Mattress for invalids
US3890004A (en) * 1974-01-16 1975-06-17 Larry E Rail Body support
US4397052A (en) * 1980-12-15 1983-08-09 Lund Iii Richard G Prenatal support pillow
US4451240A (en) * 1975-08-29 1984-05-29 Advanced Sports Corp. Aquatic mat
US4471952A (en) * 1979-04-26 1984-09-18 Span-America Medical Systems, Inc. Surgical body positioner and disposable topper
US4628557A (en) * 1984-09-14 1986-12-16 Lutheran Hospital Foundation, Inc. Adjustable hospital mattress with removable inserts
US4634393A (en) * 1975-07-08 1987-01-06 Advanced Sports Corporation Aquatic mat
US4665573A (en) * 1985-05-16 1987-05-19 Fiore Timothy J Contoured body support structure
US4706313A (en) * 1986-05-01 1987-11-17 Comfortex, Inc. Decubitus ulcer mattress
US5054142A (en) * 1988-03-02 1991-10-08 Owens Thomas P Contoured body cushion
US5172439A (en) * 1991-06-10 1992-12-22 Farley David L Therapeutic mattress overlay and method of forming and using the same
US5179742A (en) * 1991-11-01 1993-01-19 Stryker Corporation Pressure reduction mattress
US5295276A (en) * 1992-05-13 1994-03-22 Richards Constance E Patient positioning and alignment system
US5430901A (en) * 1993-06-10 1995-07-11 Farley; David L. Anatomically conformable therapeutic mattress overlay
US5433505A (en) * 1992-04-19 1995-07-18 Master Manufacturing Co. Adjustable seat and back cushion
USD381543S (en) * 1994-10-27 1997-07-29 Farley David L Foam pad
US5687742A (en) * 1993-06-22 1997-11-18 Johnson; Lanny L. Knee extension device
US5822817A (en) * 1994-11-08 1998-10-20 Racing Strollers, Inc. Infant mattress system with sleeping recess
US5963998A (en) * 1994-11-08 1999-10-12 Racing Strollers, Inc. Recessed sleeping surface
US6003179A (en) * 1997-11-18 1999-12-21 Farley; David L. Inclined anatomic support surface
US6026525A (en) * 1998-09-30 2000-02-22 Bumpa Bed Company, Llc Foldable infant mattress system with sleeping recess
US6260221B1 (en) * 1999-08-13 2001-07-17 Marc Grabell Medical apparatus for the treatment and prevention of heel decubitus
US6371894B1 (en) 2000-02-18 2002-04-16 Jack Hill Medical device for physical therapy treatment
US6532609B2 (en) * 2000-08-30 2003-03-18 Gainsborough Accessories International Limited Physiotherapy bench
US6634045B1 (en) 2002-04-01 2003-10-21 Dudonis Matt Heel elevator support
US20040093673A1 (en) * 2002-11-15 2004-05-20 Marshall Mabel E. Extremity positioner
US6895614B1 (en) * 2003-02-10 2005-05-24 Shawn Peck Hunting mat
EP1602304A1 (en) * 2004-06-04 2005-12-07 Hill-Rom Services, Inc. Mattress with heel pressure relief portion
US20060016012A1 (en) * 2004-07-21 2006-01-26 Xiaoguang Liu Device and method to prevent deep vein thrombosis
US20060112489A1 (en) * 2004-04-30 2006-06-01 Bobey John A Patient support
WO2006061449A1 (en) * 2004-12-10 2006-06-15 Arturo Valero Pavia Customizable ergonomic bed
US20070113349A1 (en) * 2005-11-09 2007-05-24 Oprandi Arthur V Mattress pad
US20070294829A1 (en) * 2006-06-27 2007-12-27 Tyco Healthcare Group Lp Adjustable positioning device
US7555795B1 (en) * 2006-10-05 2009-07-07 Kim Triolo Feil Toe rest in bed and blanket support
US20100325804A1 (en) * 2009-06-24 2010-12-30 Barry Tubb Nap seat
US9066598B1 (en) 2013-08-05 2015-06-30 James Jay Sears Foot support and protection system
US20160143450A1 (en) * 2014-11-26 2016-05-26 Milica Awshee Mattress Topper
US20160193096A1 (en) * 2011-09-30 2016-07-07 Off-Loading Technologies Inc. Methods and systems for a dynamic support mattress to treat and reduce the incidence of pressure ulcers
US20170066511A1 (en) * 2015-09-08 2017-03-09 Jeffrey Alan Palmer Tear resistant water mat
US9635948B2 (en) 2014-03-24 2017-05-02 Lisa M. Spaugh Blanket/sheet lifting device and method
AT15338U1 (en) * 2016-02-24 2017-06-15 Grüne Erde Beteiligungs GmbH Latex stripe mattress
US20170325596A1 (en) * 2016-05-13 2017-11-16 Perfect Pressure Inc. Foam mattress having an adjustable mattress core for adjusting and customizing its firmness, assembling method and kit thereof
CN110267635A (en) * 2017-02-06 2019-09-20 八乐梦医用床有限公司 Physical condition decision maker, body bearing device and physical condition determination method
US10765226B2 (en) * 2018-01-10 2020-09-08 Jennifer Mirinda Lee Mattress with longitudinally adjustable vertical relief
US20210251836A1 (en) * 2020-02-13 2021-08-19 Bone Foam, Inc. Anterior cervical positioning system
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US3160549A (en) * 1960-12-29 1964-12-08 Minnesota Mining & Mfg Vibration damping structures
US3146469A (en) * 1962-09-05 1964-09-01 Conamore C Slade Axial groove mattress
US3464842A (en) * 1963-01-04 1969-09-02 Wilhelm Jackstadt & Co Fa Self-sealing foil having plural adhesive layers
US3378861A (en) * 1965-07-20 1968-04-23 Lousberg Hubert Jean Gerard Mattress of novel shape
US3345656A (en) * 1965-10-21 1967-10-10 Steinman Charles Foot protective device
US3451071A (en) * 1967-08-03 1969-06-24 Julia G Whiteley Means for removing pressure from pressure sores
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Cited By (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742528A (en) * 1970-05-05 1973-07-03 Bock Orthopaedische Ind Kg Fa Mattress for invalids
US3890004A (en) * 1974-01-16 1975-06-17 Larry E Rail Body support
US4634393A (en) * 1975-07-08 1987-01-06 Advanced Sports Corporation Aquatic mat
US4451240A (en) * 1975-08-29 1984-05-29 Advanced Sports Corp. Aquatic mat
US4471952A (en) * 1979-04-26 1984-09-18 Span-America Medical Systems, Inc. Surgical body positioner and disposable topper
US4397052A (en) * 1980-12-15 1983-08-09 Lund Iii Richard G Prenatal support pillow
US4628557A (en) * 1984-09-14 1986-12-16 Lutheran Hospital Foundation, Inc. Adjustable hospital mattress with removable inserts
US4665573A (en) * 1985-05-16 1987-05-19 Fiore Timothy J Contoured body support structure
US4706313A (en) * 1986-05-01 1987-11-17 Comfortex, Inc. Decubitus ulcer mattress
US5054142A (en) * 1988-03-02 1991-10-08 Owens Thomas P Contoured body cushion
US5172439A (en) * 1991-06-10 1992-12-22 Farley David L Therapeutic mattress overlay and method of forming and using the same
US5179742A (en) * 1991-11-01 1993-01-19 Stryker Corporation Pressure reduction mattress
US5433505A (en) * 1992-04-19 1995-07-18 Master Manufacturing Co. Adjustable seat and back cushion
US5295276A (en) * 1992-05-13 1994-03-22 Richards Constance E Patient positioning and alignment system
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DE6918374U (en) 1969-09-18
FR2047088A5 (en) 1971-03-12
IT940241B (en) 1973-02-10
GB1268888A (en) 1972-03-29
NL7004972A (en) 1970-11-10

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