US3695260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laparotomy sheet
Assignee: Kimberly Clark Corp
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Filing: 1970-03-30
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Granted: 1972-10-03
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Expires: 1990-03-30
Abstract
Abstract A disposable laparotomy sheet comprises a major sheet of porous nonwoven fabric and a minor sheet of opaque, glare-resistant plastic near the center of the major sheet and including a fenestration to define the operative area.
Inventors
- 👤 Dan D Endres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:57
CPC Classifications
A; A61; A61B; A61B46/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
In a disposable laparotomy sheet of the type having a major sheet of porous nonwoven fabric, including head and foot areas, and a fenestration in said laparotomy sheet to expose the operative area, the improvement comprising: an opaque pigmented, embossed, fluid impervious plastic sheet adhesively secured to said major sheet and covering the upper surface thereof in the region of said fenestration to prevent fluid strike through, said plastic sheet having said fenestration therein; and the combination of said plastic sheet being embossed and opaque pigmented being effective to diffuse reflected light and thereby minimize glare, said embossed sheet being effective to provide a less slippery finish and thereby reduce the tendency of surgical instruments to slide off when placed thereon.
Claim 2
Dependent Claim
121 words
In a disposable laparotomy sheet of the type having a major sheet of porous nonwoven fabric, including head and foot areas, and a fenestration in said laparotomy sheet to expose the operative area, the improvement comprising: an opaque pigmented, embossed, fluid impervious plastic sheet adhesively secured to said major sheet and covering the upper surface thereof in the region of said fenestration to prevent fluid strike through, said plastic sheet having said fenestration therein; and the combination of said plastic sheet being embossed and opaque pigmented being effective to diffuse reflected light and thereby minimize glare, said embossed sheet being effective to provide a less slippery finish and thereby reduce the tendency of surgical instruments to slide off when placed thereon.
Claim 3
Dependent Claim
39 words
Sheet of claim 1 wherein said plastic sheet extends completely across said laparotomy sheet to separate said head and said foot areas, said head and said foot areas being respectively adhesively secured to opposite edges of said plastic sheet.
Claim 4
Dependent Claim
44 words
Sheet of claim 1 wherein said plastic sheet extends over a generally central portion of said laparotomy sheet, the major sheet having an aperture therein larger than said fenestration with the edges of said aperture being spaced away from the periphery of said fenestration.
Claim 5
Dependent Claim
9 words
Sheet of claim 1 wherein said plastic comprises polyethylene.
Claim 6
Dependent Claim
19 words
The sheet of claim 1 wherein the exposed upper surface of said major sheet is spaced from said fenestration.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |