US4974604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical drape with fluid collection system
Assignee: Ethicon Inc
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Filing: 1988-11-17
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Granted: 1990-12-04
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Expires: 2008-11-17
Abstract
Abstract A surgical drape having a main sheet and a fluid collection system for collecting and draining away from the site of surgery substantial quantities of irrigating liquids. The fluid collection system has a bag means and a pair of fluid directing elements portions of which are secured to the drape in spaced-apart relationship near the primary operative area and remainder portions of which are secured to portions of the periphery of the bag. In one preferred embodiment, the fluid collection system is made by suitably folding and appropriately securing a single sheet of liquid impervious material. The main sheet is preferably a nonwoven fabric. The liquid impervious sheet is preferably polyethylene. The fluid directing elements may have adhesive strips at their ends by which to secure the fluid collection system to a limb of a patient. The surgical drape may include a fenestrated region and having clipping tabs and tubing holders. The drape is particularly suited for use in arthroscopic surgery of the knee.
Inventors
- 👤 H. Krzewinski Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:00
CPC Classifications
A; A61; A61B; A61B46/00; A61B46/20; A61B2046/201; A61B2046/205; A61B46/23; A61B2046/236
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
440 words
A fluid collection system comprising a sheet of generally flexible, fluid-impervious material, said sheet having an upper surface, a lower surface, a top edge, a bottom edge, a pair of generally opposed side edges, a longitudinal centerline running parallel to said side edges, a first fold line between said centerline and a first of said side edges, a second fold line between said centerline and the second of said side edges, a first marginal portion between said first fold line and said first side edge, a second marginal portion between said second fold line and said second side edge, and a central portion between said first marginal portion and said second marginal portion, said first marginal portion being forward folded around said first fold line and said second marginal portion being forward folded around said second fold line so that their respective upper surfaces face the upper surface of said central portion, said first and second marginal portions being secured to said central portion along lines of securement running adjacent their free edges to form a first pocket on one side of said central portion and a second pocket on the other side of said central portion, each of said pockets forming fluid directing elements and comprising a material which is compressible and recoverable from a compressed state, said first pocket comprising an upper edge, a lower edge, an outer longitudinal edge defined by said first fold line and an inner longitudinal edge between its said outer longitudinal edge and said centerline, said second pocket comprising an upper edge, a lower edge, an outer longitudinal edge defined by said second fold line and an inner longitudinal edge between its said outer edge and said centerline, the bottom edge of said central portion comprising first and second interior edge portions, the first interior edge portion extending from said centerline toward the inner longitudinal edge of said first pocket and the second interior edge portion extending from said centerline toward the inner longitudinal edge of said second pocket, said sheet being folded around said centerline to form a first folded unit in which said first and second interior edge portions are positioned one on top of the other and in which the outer longitudinal edges of said first and second pockets are aligned with each other, the portions of said central portion which are adjacent said first and second interior edge portions being secured together in liquid tight relationship to thereby form a generally centrally located reservoir for fluids at the bottom of said folded sheet, the respective bottom edges of each of said pockets being free of attachment to each other.
Claim 2
Dependent Claim
440 words
A fluid collection system comprising a sheet of generally flexible, fluid-impervious material, said sheet having an upper surface, a lower surface, a top edge, a bottom edge, a pair of generally opposed side edges, a longitudinal centerline running parallel to said side edges, a first fold line between said centerline and a first of said side edges, a second fold line between said centerline and the second of said side edges, a first marginal portion between said first fold line and said first side edge, a second marginal portion between said second fold line and said second side edge, and a central portion between said first marginal portion and said second marginal portion, said first marginal portion being forward folded around said first fold line and said second marginal portion being forward folded around said second fold line so that their respective upper surfaces face the upper surface of said central portion, said first and second marginal portions being secured to said central portion along lines of securement running adjacent their free edges to form a first pocket on one side of said central portion and a second pocket on the other side of said central portion, each of said pockets forming fluid directing elements and comprising a material which is compressible and recoverable from a compressed state, said first pocket comprising an upper edge, a lower edge, an outer longitudinal edge defined by said first fold line and an inner longitudinal edge between its said outer longitudinal edge and said centerline, said second pocket comprising an upper edge, a lower edge, an outer longitudinal edge defined by said second fold line and an inner longitudinal edge between its said outer edge and said centerline, the bottom edge of said central portion comprising first and second interior edge portions, the first interior edge portion extending from said centerline toward the inner longitudinal edge of said first pocket and the second interior edge portion extending from said centerline toward the inner longitudinal edge of said second pocket, said sheet being folded around said centerline to form a first folded unit in which said first and second interior edge portions are positioned one on top of the other and in which the outer longitudinal edges of said first and second pockets are aligned with each other, the portions of said central portion which are adjacent said first and second interior edge portions being secured together in liquid tight relationship to thereby form a generally centrally located reservoir for fluids at the bottom of said folded sheet, the respective bottom edges of each of said pockets being free of attachment to each other.
Claim 3
Dependent Claim
29 words
A fluid collection system according to claim 1 wherein the inner surface of each of said pockets is coated with an adhesive in a region adjacent its bottom edge.
Claim 4
Dependent Claim
29 words
A fluid collection system according to claim 2 wherein the adhesive on the inner surface of each of said pockets is protected prior to use with a releaseable liner.
Claim 5
Dependent Claim
39 words
A fluid collection system according to claim 1 further comprising reinforcing means applied across the line of securement of said first and second interior edge portions in the regions near the bottom edges of said first and second pockets.
Claim 6
Dependent Claim
15 words
A fluid collection system according to claim 1 wherein said sheet is a plastic film.
Claim 7
Dependent Claim
14 words
A fluid collection system according to claim 5 wherein said plastic film comprises polyethylene.
Claim 8
Dependent Claim
22 words
A surgical drape comprising a main sheet of generally flexible, drapable material having affixed thereto the fluid collection system of claim 1.
Claim 9
Dependent Claim
56 words
A surgical drape according to claim 7 wherein said main sheet comprises a peripheral edge and a fenestration, said fluid collection system comprises a fenestration, and said fenestrations each define a plane, said pair of planes being alignable parallel to each other while a single perpendicular axis passes through the center of each of said fenestrations.
Claim 10
Dependent Claim
32 words
A surgical drape according to claim 8 wherein the reservoir means of said fluid collection system is located between the regions of said fenestrations and said peripheral edge of the main sheet.
Claim 11
Dependent Claim
28 words
A surgical drape according to claim 8 wherein there is a reinforcing material between said main sheet and said fluid collection system in the regions surrounding said fenestrations.
Claim 12
Dependent Claim
56 words
A surgical drape according to claim 10 wherein the fenestration in said fluid collection system has substantially the same dimensions as the fenestration in said main sheet and said reinforcing material comprises a fenestration which has an area which is smaller than the areas of the fenestrations in the main sheet and the fluid collection system.
Claim 13
Dependent Claim
28 words
A surgical drape according to claim 11 wherein said reinforcing material comprises a thermoplastic elastomeric polymer and the fenestration in said fluid collection system is circular in configuration.
Claim 14
Dependent Claim
259 words
A surgical drape comprising: (a) a main sheet of generally flexible, drapable material having an upper surface, a lower surface and a periphery comprising a top edge, a bottom edge and a pair of opposed side edges, (b) a primary operative area located inwardly of the periphery of said main sheet, (c) a liquid impervious bag means having an inner surface, an outer surface, an open end comprising a periphery and being adapted to admit fluids into the interior thereof, a closed end, and means for draining fluids therefrom, the periphery of said bag comprising a first peripheral portion, a second peripheral portion and a third peripheral portion; the first peripheral portion of said bag means being secured to the upper surface of the main sheet at a location between the primary operative area and an edge of said main sheet; (d) a pair of generally elongated, fluid directing elements, which comprises a material that is compressible to and recoverable from, a compressed state, each of said fluid directing elements comprising a first portion and adjoining remainder portion; the lower side edge of each of the first portions of said fluid directing elements being secured to the main sheet in spaced apart relationship near the primary operative area; the lower side edge of the remainder portion of the first fluid directing element being secured to the second peripheral portion of said bag means and the lower side edge of the remainder portion of the second fluid directing element being secured to the third peripheral portion of said bag means.
Claim 15
Dependent Claim
259 words
A surgical drape comprising: (a) a main sheet of generally flexible, drapable material having an upper surface, a lower surface and a periphery comprising a top edge, a bottom edge and a pair of opposed side edges, (b) a primary operative area located inwardly of the periphery of said main sheet, (c) a liquid impervious bag means having an inner surface, an outer surface, an open end comprising a periphery and being adapted to admit fluids into the interior thereof, a closed end, and means for draining fluids therefrom, the periphery of said bag comprising a first peripheral portion, a second peripheral portion and a third peripheral portion; the first peripheral portion of said bag means being secured to the upper surface of the main sheet at a location between the primary operative area and an edge of said main sheet; (d) a pair of generally elongated, fluid directing elements, which comprises a material that is compressible to and recoverable from, a compressed state, each of said fluid directing elements comprising a first portion and adjoining remainder portion; the lower side edge of each of the first portions of said fluid directing elements being secured to the main sheet in spaced apart relationship near the primary operative area; the lower side edge of the remainder portion of the first fluid directing element being secured to the second peripheral portion of said bag means and the lower side edge of the remainder portion of the second fluid directing element being secured to the third peripheral portion of said bag means.
Claim 16
Dependent Claim
14 words
A surgical drape according to claim 13 wherein said main sheet comprises a fenestration.
Claim 17
Dependent Claim
26 words
A surgical drape according to claim 14 wherein the lower surface of the main sheet is coated with an adhesive in the regions adjacent said fenestration.
Claim 18
Dependent Claim
22 words
A surgical drape according to claim 15 wherein said adhesive coating is protected prior to use with a releasably adhered cover strip.
Claim 19
Dependent Claim
27 words
A surgical drape according to claim 14 further including a layer of thermoplastic-elastomeric polymer secured to said main sheet and overlying the fenestration in said main sheet.
Claim 20
Dependent Claim
66 words
A surgical drape according to claim 14 wherein said main sheet fenestration defines a first plane and said drape further includes a layer of thermoplastic-elastomeric polymer secured to said main sheet, said layer comprising a fenestration that defines a second plane, said first and second planes being alignable parallel to each other while a single perpendicular axis passes through the center of each of said fenestrations.
Claim 21
Dependent Claim
46 words
A surgical drape according to claim 18 wherein said liquid impervious bag means further comprises a fenestration that defines a third plane that is alignable parallel to said first and second planes while a single perpendicular axis passes through the center of each of said fenestrations.
Claim 22
Dependent Claim
29 words
A surgical drape according to claim 13 wherein the inner surfaces of the ends of said fluid directing elements located near said bag means are coated with an adhesive.
Claim 23
Dependent Claim
21 words
A surgical drape according to claim 20 wherein said adhesive coatings are protected prior to use with releasably adhered cover strips.
Claim 24
Independent Claim
319 words
A method of making a fluid collection system for a surgical drape comprising: (a) providing a sheet of generally flexible; drapable, fluid impervious material; said sheet having an upper surface, a lower surface, a top edge, a bottom edge, a pair of generally opposed side edges, a longitudinal centerline running parallel to said side edges, a first fold line between said centerline and a first of said side edges, a second fold line between said centerline and the second of said side edges, a first marginal portion between said first fold line and said first side edge, a second marginal portion between said second fold line and said second side edge, and a central portion between said first marginal portion and said second marginal portion, (b) folding said first marginal portion in a forward fold around said first fold line; (c) placing a support material beneath the folded first marginal portion; (d) securing the free edges of the folded first marginal portion to the underlying regions of the main sheet to thereby provide a first pocket which has an outer longitudinal edge corresponding to said first fold line and an inner longitudinal edge and which encloses said support material; (e) folding said second marginal portion in a forward fold around said second fold line; (f) placing a support material beneath the folded second marginal portion; (g) securing the free edges of the folded second marginal portion to the underlying regions of the main sheet to thereby provide a second pocket which has an outer longitudinal edge corresponding to said second fold line and an inner longitudinal edge and which encloses said support material; (h) folding said sheet around said longitudinal centerline so that said first and second pockets are in substantial alignment; and (i) securing together the bottom edge portions of said sheet which extend from said centerline toward the interior edges of said first and said second pockets.
Claim 25
Independent Claim
319 words
A method of making a fluid collection system for a surgical drape comprising: (a) providing a sheet of generally flexible; drapable, fluid impervious material; said sheet having an upper surface, a lower surface, a top edge, a bottom edge, a pair of generally opposed side edges, a longitudinal centerline running parallel to said side edges, a first fold line between said centerline and a first of said side edges, a second fold line between said centerline and the second of said side edges, a first marginal portion between said first fold line and said first side edge, a second marginal portion between said second fold line and said second side edge, and a central portion between said first marginal portion and said second marginal portion, (b) folding said first marginal portion in a forward fold around said first fold line; (c) placing a support material beneath the folded first marginal portion; (d) securing the free edges of the folded first marginal portion to the underlying regions of the main sheet to thereby provide a first pocket which has an outer longitudinal edge corresponding to said first fold line and an inner longitudinal edge and which encloses said support material; (e) folding said second marginal portion in a forward fold around said second fold line; (f) placing a support material beneath the folded second marginal portion; (g) securing the free edges of the folded second marginal portion to the underlying regions of the main sheet to thereby provide a second pocket which has an outer longitudinal edge corresponding to said second fold line and an inner longitudinal edge and which encloses said support material; (h) folding said sheet around said longitudinal centerline so that said first and second pockets are in substantial alignment; and (i) securing together the bottom edge portions of said sheet which extend from said centerline toward the interior edges of said first and said second pockets.
Claim 26
Dependent Claim
17 words
A method according to claim 22 wherein said sheet of fluid impervious material comprises a plastic film.
Claim 27
Dependent Claim
12 words
A method according to claim 23 wherein said plastic film is polyethylene.
Claim 28
Dependent Claim
15 words
A method according to claim 23 wherein said securing steps are done by heat sealing.
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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) | 1993-12-03 | 1994-06-04 | 1994-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-03 | 1998-06-04 | 1998-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-03 | 2002-06-04 | 2002-12-04 | $7700.00 | Window Closed / Lapsed |