Patent US4697290A successfully refreshed from Google Patents.
US4697290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device comprising a mattress support
Assignee: REGIONALA STIFTELSEN I VARMLAND MED ERRESS GEIJERSVAGEN Firma
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Filing: 1986-05-12
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Granted: 1987-10-06
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Expires: 2006-05-12
Abstract
Abstract The invention relates to a device comprising a mattress support intended to be placed underneath a mattress or the like, to facilitate the care of bedridden patients. The support consists of a number of sections (1), each comprising a rigid board (4) or the like, extending essentially fully across the width of the support, and underneath each such board at least two inflatable cells (13a, 13b), of which at least one is placed on each side of an imaginary center line (14) along the support (21). The sections are adjoining along their adjacent edges (2), said joint being articulate and/or permitting the disassembly and reassembly of the support, and the inflatable cells on each side of said center line are inflatable independently and optionally, thus providing for a slow rocking of a patient lying on the bed, via the rigid boards and the mattress (23) on top of the support, thereby causing a redistribution of the areas of pressure between the mattress and the patient which in turn counteracts the formation of bed sores and/or provides a certain massaging effect.
Inventors
- 👤 Lars E. Alklind
- 👤 Eric Nilsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:35
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/001
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
251 words
A device to facilitate the care of bed patients comprising a support structure to be placed underneath a mattress having a first longitudinal center line, a predetermined length and a predetermined width; said support structure comprising at least three sequentially connected identical sections; each of said sections comprising a rigid, substantially rectangular, planar member having a width substantially equal to said predetermined width of said mattress, a first pair of opposed widthwise edges, a top planar surface, supportingly receivable of said mattress, disposed between said first pair of widthwise edges, a bottom planar surface disposed between said first pair of widthwise edges and a second longitudinal center line alignable with said first longitudinal center line, an envelope releasably enclosing said planar member, said envelope including a second pair of widthwise edges corresponding to said first pair of widthwise edges and at least two deformable chambers contacting said bottom planar surface of said planar member, at least one of said deformable chambers located on each side of said second longitudinal center line, connection means, located on said second pair of widthwise edges, for releasably articulatably connecting adjacent sections along their respective adjacent widthwise edges, at least one independently inflatable cell, disposed in each of said deformable chambers, for deforming said chambers away from said bottom planar surface to incline said planar member in the transverse direction, wherein said inflatable cells may independently deform said deformable chambers to produce a maximum inclination of said planar member to a horizontal plane of 10 degrees.
Claim 2
Independent Claim
251 words
A device to facilitate the care of bed patients comprising a support structure to be placed underneath a mattress having a first longitudinal center line, a predetermined length and a predetermined width; said support structure comprising at least three sequentially connected identical sections; each of said sections comprising a rigid, substantially rectangular, planar member having a width substantially equal to said predetermined width of said mattress, a first pair of opposed widthwise edges, a top planar surface, supportingly receivable of said mattress, disposed between said first pair of widthwise edges, a bottom planar surface disposed between said first pair of widthwise edges and a second longitudinal center line alignable with said first longitudinal center line, an envelope releasably enclosing said planar member, said envelope including a second pair of widthwise edges corresponding to said first pair of widthwise edges and at least two deformable chambers contacting said bottom planar surface of said planar member, at least one of said deformable chambers located on each side of said second longitudinal center line, connection means, located on said second pair of widthwise edges, for releasably articulatably connecting adjacent sections along their respective adjacent widthwise edges, at least one independently inflatable cell, disposed in each of said deformable chambers, for deforming said chambers away from said bottom planar surface to incline said planar member in the transverse direction, wherein said inflatable cells may independently deform said deformable chambers to produce a maximum inclination of said planar member to a horizontal plane of 10 degrees.
Claim 3
Dependent Claim
15 words
The device according to claim 1, wherein said independently inflatable cell comprises an annular tube.
Claim 4
Dependent Claim
14 words
The device according to claim 1, wherein said envelope consists of a liquid-impermeable material.
Claim 5
Dependent Claim
13 words
The device according to claim 3, wherein said liquid-impermeable material comprises plastic-coated fabric.
Claim 6
Dependent Claim
132 words
The device according to claim 1, further comprising pump means for generating compressed air to inflate said at least one independently inflatable cell; valve means, operably connected to said pump means and said at least one independently inflatable cell, for selectively supplying compressed air from said pump means to said inflatable cells in said deformable chamber on one side of said second longitudinal center line and releasing compressed air from said inflatable cells in said deformable chambers on the other side of said second longitudinal center line in a first valve position and vice-versa in a second valve position; and timing means, operably connected to said valve means, for cyclically switching said valve between said first valve position and said second valve position; whereby said mattress is rocked in said transverse direction.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-05 | 1991-04-06 | 1991-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-05 | 1995-04-06 | 1995-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-05 | 1999-04-06 | 1999-10-06 | $7700.00 | Window Closed / Lapsed |