Patent US5353837A successfully refreshed from Google Patents.
Patent US3721234A successfully refreshed from Google Patents.
US3721234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable surgical cover sheet
Assignee: Becton Dickinson and Co
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Filing: 1971-04-23
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Granted: 1973-03-20
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Expires: 1991-04-23
Abstract
Abstract A disposable, surgical cover sheet is provided comprising a main sheet formed of a nonwoven, cellulosic material having an enlarged opening therein, the opening covered by a sheet of plastic material. The plastic sheet is secured to the main sheet along a bonding zone surrounding the main sheet opening. A the bonding of absorbent pads is also provided surrounding the opening and secured to the main sheet and plastic sheet in thebonding zone. Portions of the plastic sheet project beyond the bonding zone and ma; be used to retain a suction tube or the like without risking the puncture or tearing of the cover sheet as a result of mishandling of the tube.
Inventors
- 👤 F Hadtke
- 👤 M Galen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:17
CPC Classifications
A; A61; A61B; A61B46/00; A61B46/20; A61B46/23; A61B2046/236; Y; Y10; Y10S; Y10S128/00; Y10S128/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
81 words
The disposable surgical drape in accordance with claim 1, wherein said main sheet is formed of a nonabsorbent, cellulosic material and further comprising at least one absorbent pad formed of an absorbent cellulosic nonwoven material overlying portions of said main sheet, said pad having a first edge overlying portions of said zone, an edge opposite said first edge extending away from said main sheet opening, and means bonding said first edge to both said plastic sheet and said main sheet zone.
Claim 2
Dependent Claim
30 words
The disposable, surgical drape in accordance with claim 2 wherein said pad overlies portions of said plastic sheet section and said plastic sheet projection extends beyond said pad opposite edge.
Claim 3
Dependent Claim
45 words
The disposable, surgical drape in accordance with claim 2 further comprising a plurality of pads disposed about said opening, each of said pads including a first edge overlying a portion of said zone and an edge opposite said first edge extending away from said opening.
Claim 4
Dependent Claim
29 words
The disposable, surgical drape in accordance with claim 1 further comprising a surgical fenestration disposed generally centrally within the portion of said plastic sheet overlying said main sheet opening.
Claim 5
Dependent Claim
91 words
The disposable, surgical drape in accordance with claim 3 wherein said zone defines a hollow rectangle having a top, sides, and a bottom, additional bonding means spaced below said zone bottom for a distance equal to the distance between the first edge and opposite edge of said pad, said plastic sheet is generally rectangular in shape and sufficiently large to overlie said entire zone, and said plastic sheet projection comprises at least one integrally formed tab extending beyond the edge of said plastic sheet designed to overlie said additional bonding means.
Claim 6
Dependent Claim
22 words
The disposable, surgical drape in accordance with claim 6 comprising a pair of tabs at opposite sides of said plastic sheet edge.
Claim 7
Dependent Claim
21 words
The disposable surgical drape in accordance with claim 7 wherein each of said tabs has a suction tube receiving opening therein.
Claim 8
Dependent Claim
72 words
The disposable, surgical drape in accordance with claim 4 wherein said bonding zone comprises a generally hollow rectangle having a top, sides, and bottom; four pads are provided each bonded to one of said zone sides, top or bottom, and said plastic sheet projection comprises at least one integrally formed tab projecting diagonally outwardly from said plastic sheet whereby said tab overlies a portion of said main sheet between two adjacent pads.
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) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |