Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3639927 A
Publication typeGrant
Publication dateFeb 8, 1972
Filing dateMay 4, 1970
Priority dateMay 7, 1969
Also published asDE6918374U
Publication numberUS 3639927 A, US 3639927A, US-A-3639927, US3639927 A, US3639927A
InventorsJosef Munch
Original AssigneeBock Orthopaed Ind
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Mattress for invalids
US 3639927 A
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.
Images(1)
Previous page
Next page
Description  (OCR text may contain errors)

[ 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.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3063749 *Jun 21, 1960Nov 13, 1962Struble AlbertHeadrest cover
US3146469 *Sep 5, 1962Sep 1, 1964Conamore C SladeAxial groove mattress
US3160549 *Dec 29, 1960Dec 8, 1964Minnesota Mining & MfgVibration damping structures
US3345656 *Oct 21, 1965Oct 10, 1967Charles SteinmanFoot protective device
US3378861 *Oct 22, 1965Apr 23, 1968Lousberg Hubert Jean GerardMattress of novel shape
US3451071 *Aug 3, 1967Jun 24, 1969Julia G WhiteleyMeans for removing pressure from pressure sores
US3464842 *Mar 26, 1963Sep 2, 1969Wilhelm Jackstadt & Co FaSelf-sealing foil having plural adhesive layers
US3481593 *Sep 22, 1967Dec 2, 1969Horace E AllenMedical examination support device
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3742528 *Feb 15, 1972Jul 3, 1973Bock Orthopaedische Ind Kg FaMattress for invalids
US3890004 *Jan 16, 1974Jun 17, 1975Larry E RailBody support
US4397052 *Dec 15, 1980Aug 9, 1983Lund Iii Richard GPrenatal support pillow
US4451240 *May 27, 1981May 29, 1984Advanced Sports Corp.Aquatic mat
US4471952 *Oct 13, 1981Sep 18, 1984Span-America Medical Systems, Inc.During heart surgery
US4628557 *Sep 14, 1984Dec 16, 1986Lutheran Hospital Foundation, Inc.Adjustable hospital mattress with removable inserts
US4634393 *Feb 22, 1985Jan 6, 1987Advanced Sports CorporationAquatic mat
US4665573 *May 16, 1985May 19, 1987Fiore Timothy JContoured body support structure
US4706313 *May 1, 1986Nov 17, 1987Comfortex, Inc.Decubitus ulcer mattress
US5054142 *Apr 4, 1990Oct 8, 1991Owens Thomas PContoured body cushion
US5172439 *Jun 10, 1991Dec 22, 1992Farley David LTherapeutic mattress overlay and method of forming and using the same
US5179742 *Nov 1, 1991Jan 19, 1993Stryker CorporationPressure reduction mattress
US5295276 *May 13, 1992Mar 22, 1994Richards Constance EPatient positioning and alignment system
US5430901 *Jun 10, 1993Jul 11, 1995Farley; David L.Anatomically conformable therapeutic mattress overlay
US5433505 *Jun 14, 1994Jul 18, 1995Master Manufacturing Co.Adjustable seat and back cushion
US5687742 *Oct 31, 1995Nov 18, 1997Johnson; Lanny L.Knee extension device
US5822817 *May 30, 1996Oct 20, 1998Racing Strollers, Inc.Infant mattress system with sleeping recess
US5937465 *Apr 13, 1998Aug 17, 1999Bumpa Bed Company,L.L.C.Infant mattress system with sleeping recess
US5963998 *Aug 21, 1996Oct 12, 1999Racing Strollers, Inc.Recessed sleeping surface
US6003179 *Nov 18, 1997Dec 21, 1999Farley; David L.Inclined anatomic support surface
US6026525 *Sep 30, 1998Feb 22, 2000Bumpa Bed Company, LlcFoldable infant mattress system with sleeping recess
US6260221 *Aug 13, 1999Jul 17, 2001Lawrence E. GluskinMedical apparatus for the treatment and prevention of heel decubitus
US6371894Feb 18, 2000Apr 16, 2002Jack HillMedical device for physical therapy treatment
US6532609 *Aug 29, 2001Mar 18, 2003Gainsborough Accessories International LimitedPhysiotherapy bench
US6634045Apr 1, 2002Oct 21, 2003Dudonis MattHeel elevator support
US6895614 *Feb 10, 2003May 24, 2005Shawn PeckHunting mat
US7036169 *Nov 15, 2002May 2, 2006Marshall Mabel EExtremity positioner
US7356863 *Nov 19, 2005Apr 15, 2008Oprandi Arthur VMattress pad
US7555795 *Sep 13, 2007Jul 7, 2009Kim Triolo FeilToe rest in bed and blanket support
US7685664Jun 2, 2005Mar 30, 2010Hill-Rom Services, Inc.Mattress with heel pressure relief portion
US7698765Jan 3, 2006Apr 20, 2010Hill-Rom Services, Inc.Patient support
US8146191Dec 22, 2009Apr 3, 2012Hill-Rom Services, Inc.Patient support
EP1602304A1 *May 31, 2005Dec 7, 2005Hill-Rom Services, Inc.Mattress with heel pressure relief portion
EP1847200A2 *May 31, 2005Oct 24, 2007Hill-Rom Services, Inc.Mattress with heel pressure relief portion
WO2006061449A1 *Dec 7, 2005Jun 15, 2006Pavia Arturo ValeroCustomizable ergonomic bed
Classifications
U.S. Classification5/723, 5/733, 5/648, 5/734, 5/651
International ClassificationA47C27/14, A61G7/057
Cooperative ClassificationA61G7/05715, A47C27/148, A47C27/146, A47C27/15
European ClassificationA47C27/14C4, A47C27/14E, A47C27/15, A61G7/057C