Patent US1273380A successfully refreshed from Google Patents.
Patent US5300103A successfully refreshed from Google Patents.
US5300103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal blanket and absorbent interfacing pad therefor
Assignee: UNITED STATES MANUFACTURING COMPANY LLC
•
Filing: 1992-09-24
•
Granted: 1994-04-05
•
Expires: 2012-09-24
Abstract
Abstract A thermal blanket particularly suitable for post-operative therapy and a thermally-conductive, fluid-absorbing interfacing pad for use therewith. The pad includes an intermediate or core layer of a pliant, liquid-absorbing, hydrocolloid-containing skin barrier material having both wet and dry tack, a thin backing layer on one side of the intermediate layer, and a porous, fluid-transmitting (and preferably fluid-absorbing) facing layer on the opposite side of the intermediate layer. One or more adhesive patches detachably secure the blanket and pad together, such patches being formed of a pressure-sensitive adhesive material preferably having greater affinity for the surface of the blanket than for the surface of the backing layer of the pad. In one embodiment, the pad's facing layer is provided with openings that expose areas of the adhesive intermediate layer for direct contact between the intermediate layer and a patient's skin.
Inventors
- 👤 Emil Stempel
- 👤 Kenneth E. Riedel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:26
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/02; A61F2007/0001; A61F2007/0029; A61F2007/003; A61F2007/0039; A61F2007/0042; A61F2007/0054; A61F2007/0225; A61F2007/0226
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
137 words
In combination, a flexible thermal blanket for therapeutic hot/cold treatment of a patient; said blanket having flow passages therethrough for the circulation of heated or cooled liquid and having a patient-facing wall of smooth, flexible, polymeric material; and an interfacing pad having a backing layer, a porous absorbent liquid-transmitting patient-facing layer, and an intermediate layer between said backing layer and said patient-facing layer of said pad of an adhesive hydrocolloid-containing liquid-absorbing skin barrier composition with both wet and dry tack; all of said layers being highly flexible and being secured together, said layers providing a body-conformable pad having an outline generally corresponding with that of said blanket and a surface area no smaller than that of said blanket; and adhesive attachment means releasably securing said backing layer of said pad to said patient-facing wall of said blanket.
Claim 2
Dependent Claim
137 words
In combination, a flexible thermal blanket for therapeutic hot/cold treatment of a patient; said blanket having flow passages therethrough for the circulation of heated or cooled liquid and having a patient-facing wall of smooth, flexible, polymeric material; and an interfacing pad having a backing layer, a porous absorbent liquid-transmitting patient-facing layer, and an intermediate layer between said backing layer and said patient-facing layer of said pad of an adhesive hydrocolloid-containing liquid-absorbing skin barrier composition with both wet and dry tack; all of said layers being highly flexible and being secured together, said layers providing a body-conformable pad having an outline generally corresponding with that of said blanket and a surface area no smaller than that of said blanket; and adhesive attachment means releasably securing said backing layer of said pad to said patient-facing wall of said blanket.
Claim 3
Dependent Claim
16 words
The combination of claim 1 in which said patient-facing layer of said pad is also liquid-absorbing.
Claim 4
Dependent Claim
19 words
The combination of claim 2 in which said absorbent, porous, patient-facing layer is composed of a non-linting non-woven fabric.
Claim 5
Dependent Claim
19 words
The combination of claim 2 in which said absorbent, porous, facing layer is composed of hydrophilic open-cell polymeric foam.
Claim 6
Dependent Claim
17 words
The combination of claim 1 in which said interfacing pad is larger in area than said blanket.
Claim 7
Dependent Claim
20 words
The combination of claim 1 in which said layers of said pad are adhesively secured together by said intermediate layer.
Claim 8
Dependent Claim
38 words
The combination of claim 6 in which said absorbent patient-facing layer has a plurality of apertures exposing areas of said intermediate layer therethrough for direct limited adhesive contact of said intermediate layer with the skin of a patient.
Claim 9
Dependent Claim
29 words
The combination of claim 1 in which said skin barrier composition includes said hydrocolloid dispersed in a water-insoluble elastomer having dry tack and retained in a cross-linked polymer network.
Claim 10
Dependent Claim
17 words
The combination of claim 1 in which said blanket and pad are each generally U-shaped in outline.
Claim 11
Dependent Claim
31 words
The combination of claim 1 in which said adhesive attachment means comprises a plurality of patches of pressure-sensitive adhesive interposed between said backing layer and said patient-facing wall of said blanket.
Claim 12
Dependent Claim
46 words
The combination of claim 10 in which said patches are composed of an adhesive having greater affinity for said patient-facing wall of said blanket than for said backing layer so that said patches separate cleanly from said backing layer when said pad and blanket are separated.
Claim 13
Dependent Claim
38 words
The combination of claim 11 in which said patient-facing wall of said blanket is formed of polyvinylchloride, said backing layer of said interfacing pad is formed of polymethylpentene, and said patches are formed of an acrylic pressure-sensitive adhesive.
Claim 14
Dependent Claim
55 words
A multilayer interfacing pad for use as an absorbent, heat-transferring liner beneath a thermal blanket used for heating or cooling a body surface; said pad having a polymeric, liquid-impervious backing layer, a porous absorbent liquid-transmitting skin-contacting layer, and an intermediate layer therebetween of a hydrocolloid-containing liquid-absorbing skin barrier composition having both wet and dry tack.
Claim 15
Dependent Claim
55 words
A multilayer interfacing pad for use as an absorbent, heat-transferring liner beneath a thermal blanket used for heating or cooling a body surface; said pad having a polymeric, liquid-impervious backing layer, a porous absorbent liquid-transmitting skin-contacting layer, and an intermediate layer therebetween of a hydrocolloid-containing liquid-absorbing skin barrier composition having both wet and dry tack.
Claim 16
Dependent Claim
16 words
The pad of claim 13 in which said skin-contacting layer of said pad is also liquid-absorbing.
Claim 17
Dependent Claim
21 words
The pad of claim 14 in which said absorbent, porous, skin-contacting layer is formed of a non-woven material of synthetic fibers.
Claim 18
Dependent Claim
29 words
The pad of claim 13 in which said skin barrier composition includes said hydrocolloid dispersed in a water-insoluble elastomer having dry tack and retained in a cross-linked polymer network.
Claim 19
Dependent Claim
20 words
The pad of claim 13 in which said layers of said pad are adhesively secured together by said intermediate layer.
Claim 20
Dependent Claim
34 words
The pad of claim 17 in which said absorbent skin-contacting layer has a plurality of apertures exposing areas of said intermediate layer therethrough for making limited adhesive contact with the skin of a patient.
Claim 21
Dependent Claim
14 words
The pad of claim 13 in which said pad is generally U-shaped in outline.
Claim 22
Dependent Claim
14 words
The pad of claim 13 in which said backing layer is formed of polymethylpentene.
Claim 23
Dependent Claim
53 words
The pad of claim 13 in which said backing layer has a thickness within the range of about 1 to 3 mil, said intermediate layer has a thickness within the range of about 10 to 30 mil, and said, skin-contacting layer has a thickness within the range of about 5 to 30 mil.
References Cited (Backward Citations)
US3596657A
Cited
US3678933A
Cited
US3748436A
Cited
US3867939A
Cited
US3888248A
Cited
US4114620A
Cited
US4149541A
Cited
US4397315A
Cited
US4477325A
Cited
US4534354A
Cited
US4517972A
Cited
US4628932A
Cited
US4556055A
Cited
US4753240A
Cited
US4951665A
Cited
US4982736A
Cited
US5178139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-04-04 | 1997-10-04 | 1998-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-04 | 2001-10-04 | 2002-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-04 | 2005-10-04 | 2006-04-05 | $7700.00 | Window Closed / Lapsed |