Patent US4572174A successfully refreshed from Google Patents.
US4572174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low friction bed pad
Assignee: Senecare Enterprises Inc
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Filing: 1983-11-22
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Granted: 1986-02-25
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Expires: 2003-11-22
Abstract
Abstract A bed pad structure is provided for the prevention of bed sores or pressure ulcers. The bed pad includes a pouch portion having an upper layer formed from a porous low friction material and a lower layer formed from a flexible impervious sheet material. The pouch portion is further constructed to enable easy insertion and removal of a lubricated insert in between the upper and lower layers. Lubrication from the insert can flow through the porous upper layer. The low friction characteristics of the upper layer plus the presence of the lubricant adjacent the patient substantially prevents friction and related wear which are contributing factors to the occurrence of bed sores.
Inventors
- 👤 Kasriel Eilender
- 👤 Mille Stand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:53
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/05; A61G7/057; Y; Y10; Y10S; Y10S206/00; Y10S206/828; Y10S5/00; Y10S5/925
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
104 words
A composite pad for substantially preventing bed sores, said composite pad comprising: an upper layer formed from a low friction flexible porous material; a lower layer formed from a substantially impervious sheet material, said upper and lower layers being attached to one another to define a recloseable pouch therebetween; and a lubricant disposed in said pouch, said lubricant being flowable through the porus upper layer thereby providing a low coefficient of friction between the upper layer and a skin surface adjacent thereto, whereby the low coefficient of friction substantially prevents bed sores on a patient supported on said upper layer of said composite pad.
Claim 2
Dependent Claim
104 words
A composite pad for substantially preventing bed sores, said composite pad comprising: an upper layer formed from a low friction flexible porous material; a lower layer formed from a substantially impervious sheet material, said upper and lower layers being attached to one another to define a recloseable pouch therebetween; and a lubricant disposed in said pouch, said lubricant being flowable through the porus upper layer thereby providing a low coefficient of friction between the upper layer and a skin surface adjacent thereto, whereby the low coefficient of friction substantially prevents bed sores on a patient supported on said upper layer of said composite pad.
Claim 3
Dependent Claim
15 words
A composite pad as in claim 1 wherein the lubricant is an ointment or cream.
Claim 4
Dependent Claim
22 words
A composite pad as in claim 1 further including a plurality of straps for releasably attaching the pad to a supporting structure.
Claim 5
Dependent Claim
76 words
A composite pad as in claim 1 wherein the upper and lower layers are substantially rectangular with said upper and lower layers each having two opposed pairs of edges, at least two said edges on said upper layer being fixedly attached respectively to the corresponding edges of said lower layer and with the remaining edges of said upper and lower layers being substantially free from one another to enable insertion or removal of the lubricant insert.
Claim 6
Dependent Claim
29 words
A composite pad as in claim 4 further including a releasable closure means adjacent said remaining edges for securely retaining the lubricant insert intermediate said upper and lower layers.
Claim 7
Dependent Claim
15 words
A composite pad as in claim 1 wherein the upper layer comprises a PTFE. material.
Claim 8
Dependent Claim
24 words
A composite pad as in claim 1 wherein the coefficient of friction between the upper layer and the patient supported thereon is about 0.04.
Claim 9
Dependent Claim
97 words
A composite structure for substantially preventing bed sores on the skin of a patient, said structure comprising: a layer of porous sheet material characterized by the fact that the coefficient of friction between the porous material and the skin of the patient is approximately 0.04; and a substantially impervious layer of sheet material disposed adjacent said porous layer and affixed thereto so as to define a recloseable pouch therebetween for receiving additional material, whereby the positioning of said porous layer adjacent the patient reduces frictional wear on the skin of the patient thereby substantially preventing bed sores.
Claim 10
Dependent Claim
97 words
A composite structure for substantially preventing bed sores on the skin of a patient, said structure comprising: a layer of porous sheet material characterized by the fact that the coefficient of friction between the porous material and the skin of the patient is approximately 0.04; and a substantially impervious layer of sheet material disposed adjacent said porous layer and affixed thereto so as to define a recloseable pouch therebetween for receiving additional material, whereby the positioning of said porous layer adjacent the patient reduces frictional wear on the skin of the patient thereby substantially preventing bed sores.
Claim 11
Dependent Claim
24 words
A structure as in claim 8 further including a lubricated sheet of material disposed in the pouch and intermediate said porous and impervious layers.
Claim 12
Dependent Claim
24 words
A structure as in claim 9 wherein the pouch includes a reclosable opening for insertion and removal of the lubricant impregnated sheet of material.
Claim 13
Dependent Claim
14 words
A structure as in claim 9 wherein the porous layer comprises a PTFE fabric.
Claim 14
Dependent Claim
49 words
A composite pad for substantially preventing bed sores on the skin of a patient, said composite pad comprising: a porous upper fabric layer comprising PTFE; and an impervious lower layer, said lower layer being disposed adjacent said upper layer and being attached thereto to define a recloseable pouch therebetween.
Claim 15
Dependent Claim
49 words
A composite pad for substantially preventing bed sores on the skin of a patient, said composite pad comprising: a porous upper fabric layer comprising PTFE; and an impervious lower layer, said lower layer being disposed adjacent said upper layer and being attached thereto to define a recloseable pouch therebetween.
Claim 16
Dependent Claim
18 words
A composite pad as in claim 12 further including a lubricated insert intermediate said upper and lower layers.
Claim 17
Dependent Claim
15 words
A composite pad as in claim 13 further comprising a plurality of straps secured thereto.
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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) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |