US3871376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination absorbent dressing and flexible cooling device
Assignee: Union Carbide Corp
•
Filing: 1974-03-13
•
Granted: 1975-03-18
•
Expires: 1994-03-13
Abstract
Abstract A combination absorbent dressing and flexible cooling device which includes a cooling device superimposed over a dressing composite, and an insulating material covering said cooling device and dressing composite.
Inventors
- 👤 Theodore F Kozak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:44
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/10; A61F13/00; A61F13/02; A61F13/0203; A61F7/106; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/26; A61L15/42; A61L15/52; A61F2007/0001; A61F7/02; A61F2007/0244; A61F2007/026
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
106 words
A COMBINATION ADSORBENT DRESSING AND FLEXIBLE COOLING DEVICE COMPRISING: A. A DRESSING COMPOSITE COMPRISING IN COMBINATION, A HYDROPHOBIC TOPSHEET FOR PLACEMENT ADJACENT TO THE BODY AND HAVING A PLURALITY OF VALVULAR OPENINGS THEREIN, A SUBSTANTIALLY LIQUID IMPERMEABLE BACKING SHEET, AND AN ABSORBENT MATERIAL DISPOSED BETWEEN SAID TOPSHEET AND BACKING SHEET, AND BEING CHARACTERIZED BY ITS ABILITY TO ABSORB LIQUID PASSED THROUGH SAID OPENINGS, AND A SYSTEM OF DIMPLES DISPOSED ON SAID TOPSHEET; B. A COOLING DEVICE ASSOCIATED WITH SAID DRESSING COMPOSITE COMPRISING A FLEXIBLE PACKAGING MATERIAL ENCOMPASSING AND SEALING AN INSOLUBLE HYDROPHILIC GEL; AND C. AN INSULATING MATERIAL COVERING SAID COOLING DEVICE AND SAID DRESSING COMPOSITE.
Claim 2
Dependent Claim
106 words
A COMBINATION ADSORBENT DRESSING AND FLEXIBLE COOLING DEVICE COMPRISING: A. A DRESSING COMPOSITE COMPRISING IN COMBINATION, A HYDROPHOBIC TOPSHEET FOR PLACEMENT ADJACENT TO THE BODY AND HAVING A PLURALITY OF VALVULAR OPENINGS THEREIN, A SUBSTANTIALLY LIQUID IMPERMEABLE BACKING SHEET, AND AN ABSORBENT MATERIAL DISPOSED BETWEEN SAID TOPSHEET AND BACKING SHEET, AND BEING CHARACTERIZED BY ITS ABILITY TO ABSORB LIQUID PASSED THROUGH SAID OPENINGS, AND A SYSTEM OF DIMPLES DISPOSED ON SAID TOPSHEET; B. A COOLING DEVICE ASSOCIATED WITH SAID DRESSING COMPOSITE COMPRISING A FLEXIBLE PACKAGING MATERIAL ENCOMPASSING AND SEALING AN INSOLUBLE HYDROPHILIC GEL; AND C. AN INSULATING MATERIAL COVERING SAID COOLING DEVICE AND SAID DRESSING COMPOSITE.
Claim 3
Dependent Claim
21 words
A combination absorbent dressing and flexible cooling device according to claim 1 wherein said hydrophobic topsheet is an ethylene ethylacrylate film.
Claim 4
Dependent Claim
39 words
A combination absorbent dressing and flexible cooling device according to claim 2 wherein said valvular openings are substantially parallel straight slits disposed in longitudinal rows, each slit being angularly disposed with respect to the longitudinal axis of each row.
Claim 5
Dependent Claim
25 words
A combination absorbent dressing and flexible cooling device according to claim 3 wherein said slits are from about 0.03 to about 0.20 inch in length.
Claim 6
Dependent Claim
28 words
A combination absorbent dressing and flexible cooling device according to claim 1 wherein said dimples have a frequency of at least 1 per square inch of absorbent area.
Claim 7
Dependent Claim
30 words
A combination absorbent dressing and flexible cooling device according to claim 1 wherein said dimples have a circular configuration with a diameter of from about 0.025 to about 0.25 inch.
Claim 8
Dependent Claim
53 words
A combination absorbent dressing and flexible cooling device according to claim 1 wherein said topsheet and said backing sheet are of substantially the same dimensions and are adhered to each other around their periphery to Form an integral structure having the absorbent material substantially enclosed and sandwiched between the topsheet and backing sheet.
Claim 9
Dependent Claim
22 words
A combination absorbent dressing and flexible cooling device according to claim 1 wherein said insoluble hydrophilic gel is insolublized poly (ethylene oxide)
Claim 10
Dependent Claim
26 words
A combination absorbent dressing and flexible cooling device according to claim 1 wherein said insulating material is adhered to said dressing composite and said cooling device.
Claim 11
Dependent Claim
160 words
A combination absorbent dressing and flexible cooling device comprising: a. an outer sheet having two end segments containing an adhesive material on the lower surfaces thereof and a middle segment; b. a dressing composite comprising in combination, a hydrophobic top sheet for placement adjacent to the body and having a plurality of valvular openings therein, a substantially liquid impermeable backing sheet, and an absorbent material disposed between said top sheet and backing sheet and being characterized by its ability to absorb liquid passed through said openings, and a system of dimples disposed on said top sheet; c. a cooling device disposed between said outer sheet and said dressing composite comprising a flexible packaging material encompassing and sealing an insoluble hydrophilic gel; d. an insulating material disposed between said cooling device and said outer sheet; and e. a release strip disposed on the lower surface of said combination absorbent dressing and flexible cooling device in adhesive engagement with said end segments.
Claim 12
Dependent Claim
160 words
A combination absorbent dressing and flexible cooling device comprising: a. an outer sheet having two end segments containing an adhesive material on the lower surfaces thereof and a middle segment; b. a dressing composite comprising in combination, a hydrophobic top sheet for placement adjacent to the body and having a plurality of valvular openings therein, a substantially liquid impermeable backing sheet, and an absorbent material disposed between said top sheet and backing sheet and being characterized by its ability to absorb liquid passed through said openings, and a system of dimples disposed on said top sheet; c. a cooling device disposed between said outer sheet and said dressing composite comprising a flexible packaging material encompassing and sealing an insoluble hydrophilic gel; d. an insulating material disposed between said cooling device and said outer sheet; and e. a release strip disposed on the lower surface of said combination absorbent dressing and flexible cooling device in adhesive engagement with said end segments.
Claim 13
Dependent Claim
21 words
A combination absorbent dressing and flexible cooling device according to claim 10 wherein said hydrophobic topsheet is an ethylene ethylacrylate film.
Claim 14
Dependent Claim
39 words
A combination absorbent dressing and flexible cooling device according to claim 11 wherein said valvular openings are substantially parallel straight slits disposed in longitudinal rows, each slit being angularly disposed with respect to the longitudinal axis of each row.
Claim 15
Dependent Claim
25 words
A combination absorbent dressing and flexible cooling device according to claim 12 wherein said slits are from about 0.03 to about 0.20 inch in length.
Claim 16
Dependent Claim
28 words
A combination absorbent dressing and flexible cooling device according to claim 10 wherein said dimples have a frequency of at least 1 per square inch of absorbent area.
Claim 17
Dependent Claim
30 words
A combination absorbent dressing and flexible cooling device according to claim 10 wherein said dimples have a circular configuration with a diameter of from about 0.025 to about 0.25 inch.
Claim 18
Dependent Claim
53 words
A combination absorbent dressing and flexible cooling device according to claim 10 wherein said topsheet and said backing sheet are of substantially the same dimensions and are adhered to each other around their periphery to form an integral structure having the absorbent material substantially enclosed and sandwiched between the topsheet and backing sheet.
Claim 19
Dependent Claim
22 words
A combination absorbent dressing and flexible cooling device according to claim 10 wherein said insoluble hydrophilic gel is insolubilized poly (ethylene oxide)
Claim 20
Dependent Claim
26 words
A combination absorbent dressing and flexible cooling device according to claim 10 wherein said insulating material is adhered to said dressing composite and said cooling device.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |