US4598458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical drape with fluid collection bag
Assignee: Boundary Healthcare Products Corp
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Filing: 1983-04-27
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Granted: 1986-07-08
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Expires: 2003-04-27
Abstract
Abstract A surgical drape has an upper surface and a surgical site, and has a fluid collection bag attached to the upper surface. The bag has a first opening, a lower, fluid-collection chamber, and a second opening. The drape and bag are constructed such that when they are in their normal operational position, they are positioned such that the surgical site is above and in fluid communication with the first opening, the first opening is above and in fluid communication with the lower chamber, and the second opening is above and in fluid communication with the lower chamber.
Inventors
- 👤 Spears L. McAllester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:05
CPC Classifications
A; A61; A61B; A61B46/00; A61B46/20; A61B2046/201; A61B46/23; A61B2046/236
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
354 words
A surgical drape comprising: (a) A base sheet constructed of a nonwoven fabric laminate having an upper surface and a lower surface; (b) A surgical site centrally located across the width of said upper surface of said base sheet through which a surgical procedure is performed; (c) A fluid collection bag constructed of a flexible, fluid impervious sheet material comprising a front panel having a top edge, a left side, a right side, and a bottom edge; a back panel having a top edge, a left side, a right side, and a bottom edge; said left and right sides, and said bottom edges being closed; said top edge of said back panel being secured to said upper surface of said base sheet; a first opening formed by the open top edges of said front and back panels, said first opening being in fluid communication with said surgical site; a lower chamber located below and in fluid communication with said first opening; and a second opening in said front panel located above said lower chamber so as to prevent fluid discharge by gravity through said second opening and to enable the insertion of fluid discharge means and the measurement and sampling of fluid, (d) Fluid control rails attached to said upper surface of said base sheet, said rails being located alongside but spaced from said surgical site such that when said base sheet and said bag are in their normal operational position, fluid runoff from said surgical site which flows to and strikes said rails is channeled to said first opening of said bag, said rails being constructed of a flexible, thick-walled tubing encased in a flexible sheet material; and (e) Means for holding said first opening in an open position when said base sheet and said bag are in their normal operational position, said opening means comprising a flexible, polymeric foam rod encased in a flexible sheet material, a middle section of said encased rod being attached to said top edge of said front panel of said bag, and the ends of said rod being attached to said upper surface of said base sheet.
Claim 2
Dependent Claim
354 words
A surgical drape comprising: (a) A base sheet constructed of a nonwoven fabric laminate having an upper surface and a lower surface; (b) A surgical site centrally located across the width of said upper surface of said base sheet through which a surgical procedure is performed; (c) A fluid collection bag constructed of a flexible, fluid impervious sheet material comprising a front panel having a top edge, a left side, a right side, and a bottom edge; a back panel having a top edge, a left side, a right side, and a bottom edge; said left and right sides, and said bottom edges being closed; said top edge of said back panel being secured to said upper surface of said base sheet; a first opening formed by the open top edges of said front and back panels, said first opening being in fluid communication with said surgical site; a lower chamber located below and in fluid communication with said first opening; and a second opening in said front panel located above said lower chamber so as to prevent fluid discharge by gravity through said second opening and to enable the insertion of fluid discharge means and the measurement and sampling of fluid, (d) Fluid control rails attached to said upper surface of said base sheet, said rails being located alongside but spaced from said surgical site such that when said base sheet and said bag are in their normal operational position, fluid runoff from said surgical site which flows to and strikes said rails is channeled to said first opening of said bag, said rails being constructed of a flexible, thick-walled tubing encased in a flexible sheet material; and (e) Means for holding said first opening in an open position when said base sheet and said bag are in their normal operational position, said opening means comprising a flexible, polymeric foam rod encased in a flexible sheet material, a middle section of said encased rod being attached to said top edge of said front panel of said bag, and the ends of said rod being attached to said upper surface of said base sheet.
Claim 3
Dependent Claim
35 words
The drape of claim 1 wherein said surgical site comprises a reinforcement patch of fluid-impervious material that is adhered to said upper surface of said base sheet, and a fenestration located within said reinforcement patch.
Claim 4
Dependent Claim
29 words
The drape of claim 2 wherein said fluid control rails are attached to said upper surface of said drape, said rails being located alongside but spaced from said fenestration.
Claim 5
Dependent Claim
31 words
The drape of claim 1 wherein said flexible, thick-walled tubing of said fluid control rails is rubber surgical tubing, and wherein said flexible, polymeric foam rod is a polyethylene foam rod.
Claim 6
Dependent Claim
52 words
The drape of claim 1 wherein said fluid collection bag further comprises passive blocking means between said first opening and said second opening to prevent fluid to flow by gravity from said first opening directly to said second opening so that all of the fluid is first collected in said lower chamber.
Claim 7
Dependent Claim
45 words
The drape of claim 5 wherein said fluid collection bag further comprises an upper chamber located above said lower chamber and in fluid communication with said lower chamber and said first opening; and integral screening means located between said upper chamber and said lower chamber.
Claim 8
Dependent Claim
19 words
The drape of claim 6 wherein said screening means is a portion of said bag material having perforations therein.
Claim 9
Dependent Claim
88 words
The drape of claim 7 wherein said fluid collection bag is constructed of a single piece of flexible, fluid impervious material, said bag further comprising said front panel having a top front section having a top edge and a bottom edge, and a bottom front section having a top edge; wherein said top edge of said bottom front section overlaps said top front section to form said second opening; and wherein said bottom edge and the bottom portion of said top front section form said passive blocking means.
Claim 10
Dependent Claim
140 words
The drape of claim 7 wherein said fluid collection bag is constructed of a first piece of material and a second piece of material; said front panel of said fluid collection bag having a top front section having a top edge and a bottom edge, and a bottom front section having a top edge; wherein said first piece of material is folded to form said back panel and said bottom front section of said front panel; wherein said second piece of material is folded to form said screening means and said top front section of said front panel; wherein said top edge of said bottom front section overlap said bottom edge of said top front section to form said second opening; and wherein said bottom edge and the bottom portion of said top front section form said passive blocking means.
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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) | 1989-07-07 | 1990-01-06 | 1990-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-07 | 1994-01-06 | 1994-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-07 | 1998-01-06 | 1998-07-08 | $7700.00 | Window Closed / Lapsed |