US4397315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dressing with temperature pack
Assignee: Kendall Co
•
Filing: 1981-09-16
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Granted: 1983-08-09
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Expires: 2001-09-16
Abstract
Abstract A dressing for the body of a patient comprising, an elongated pack to produce heat or cold. The pack has a front surface and a rear surface. The dressing has an absorbent medium at least substantially covering the front and rear surface of the pack.
Inventors
- 👤 Harish A. Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:54
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/02; A61F7/03; A61F2007/0001; A61F2007/0018; A61F2007/0028; A61F2007/0244; A61F2007/0257; A61F2007/026; A61F2007/0268; A61F2007/0276
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
117 words
A dressing for the body of a patient, comprising: an elongated pack to produce heat or cold, said pack having a front surface, a rear surface, and two opposed side edges, said pack comprising an outer closed envelope of fluid impervious material containing a first material, said outer envelope preventing passage of the first material therethrough, and an inner rupturable envelope of fluid impervious material containing a second material; said first and second materials producing heat or cold when contact is made between the two materials; and a plurality of sheets of absorbent material covering the front surface of the pack and extending around both side edges of the pack to the rear surface of the pack.
Claim 2
Dependent Claim
117 words
A dressing for the body of a patient, comprising: an elongated pack to produce heat or cold, said pack having a front surface, a rear surface, and two opposed side edges, said pack comprising an outer closed envelope of fluid impervious material containing a first material, said outer envelope preventing passage of the first material therethrough, and an inner rupturable envelope of fluid impervious material containing a second material; said first and second materials producing heat or cold when contact is made between the two materials; and a plurality of sheets of absorbent material covering the front surface of the pack and extending around both side edges of the pack to the rear surface of the pack.
Claim 3
Dependent Claim
31 words
The dressing of claim 1 wherein said sheets have opposed side edges, and in which the opposed side edges are located adjacent each other over the rear surface of the pack.
Claim 4
Dependent Claim
23 words
The dressing of claim 1 including a backing sheet of fluid impervious material covering the sheets over the rear surface of the pack.
Claim 5
Dependent Claim
29 words
The dressing of claim 3 wherein said fluid impervious sheet has opposed side margins located over the front surface of the pack adjacent the side edges of the pack.
Claim 6
Dependent Claim
20 words
The dressing of claim 1 including an outer sheet of absorbent nonwoven material extending completely around said sheets and pack.
Claim 7
Dependent Claim
43 words
The dressing of claim 5 wherein said pack has a pair of opposed end edges connecting the opposed side edges and said nonwoven sheet includes a pair of opposed end tabs extending past the end edges of the pack and said absorbent sheets.
Claim 8
Dependent Claim
22 words
The dressing of claim 1 wherein one of said materials is sodium thiosulphate, and the other of said materials is ethylene glycol.
Claim 9
Dependent Claim
21 words
The dressing of claim 1 wherein one of said materials is ammonium nitrate, and the other of said materials is water.
Claim 10
Dependent Claim
12 words
The dressing of claim 1 wherein said sheets include a superabsorbent material.
Claim 11
Dependent Claim
18 words
The dressing of claim 9 wherein said superabsorbent material is located over the rear surface of the pack.
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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) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |