Patent US6120539A successfully refreshed from Google Patents.
US6120539A
Expired / Lapsed
US
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Prosthetic repair fabric
Assignee: CR Bard Inc
•
Filing: 1997-05-01
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Granted: 2000-09-19
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Expires: 2017-05-01
Abstract
Abstract A prosthetic repair fabric including a sheet of tissue infiltratable fabric and a second sheet, also preferably including tissue infiltratable fabric, which is united with the first sheet. The second sheet is fused to an adhesion resistant barrier, forming a laminate composite prosthesis without degrading the mechanical properties or tissue ingrowth capability of the first sheet.
Inventors
- 👤 Stephen N. Eldridge
- 👤 Milo A. Titone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:10
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/10; D04B21/12; A; A61; A61F; A61F2/00; A61F2/0063; A61F2002/0068; A61F2210/00; A61F2210/0076; D10; D10B; D10B2403/00; D10B2403/01; D10B2403/011; D10B2403/0112; D10B2403/02; D10B2403/021; D10B2403/0213; D10B2509/00; D10B2509/08; Y; Y10; Y10S; Y10S623/00; Y10S623/902; Y10S623/924; Y10S623/926
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
108 words
A prosthetic repair fabric, comprising: a dual layer, biologically compatible and implantable fabric including a first porous knit sheet with interstices constructed and arranged for tissue infiltration and which is susceptible to the formation of adhesions with sensitive tissue and organs and a second sheet that is joined directly to said first sheet; and a barrier sheet that is resistant to the formation of adhesions with sensitive tissue and organs and which is overlaid and in contact with said second sheet, wherein at least a surface portion of said second sheet adjacent said barrier is fused to said barrier without degrading the physical characteristics of said first sheet.
Claim 2
Dependent Claim
108 words
A prosthetic repair fabric, comprising: a dual layer, biologically compatible and implantable fabric including a first porous knit sheet with interstices constructed and arranged for tissue infiltration and which is susceptible to the formation of adhesions with sensitive tissue and organs and a second sheet that is joined directly to said first sheet; and a barrier sheet that is resistant to the formation of adhesions with sensitive tissue and organs and which is overlaid and in contact with said second sheet, wherein at least a surface portion of said second sheet adjacent said barrier is fused to said barrier without degrading the physical characteristics of said first sheet.
Claim 3
Dependent Claim
17 words
The prosthetic repair fabric recited in claim 1 wherein said second sheet is a porous knit sheet.
Claim 4
Dependent Claim
23 words
The prosthetic repair fabric recited in claim 2 wherein said porous second sheet has a single bar warp knit, dual course Atlas construction.
Claim 5
Dependent Claim
18 words
The prosthetic repair fabric recited in claim 1 wherein said first porous knit sheet is formed from polypropylene.
Claim 6
Dependent Claim
16 words
The prosthetic repair fabric recited in claim 4 wherein said second sheet is formed from polypropylene.
Claim 7
Dependent Claim
16 words
The prosthetic repair fabric recited in claim 1 wherein said barrier sheet is formed from ePTFE.
Claim 8
Dependent Claim
67 words
The prosthetic repair fabric of claim 1 wherein at least a portion of said second sheet adjacent said first sheet also includes interstices constructed and arranged for tissue infiltration, wherein said interstices in said portion of said second sheet adjacent said first sheet are not occluded by fusion of said at least surface portion to said barrier sheet so as not to adversely affect tissue ingrowth thereto.
Claim 9
Dependent Claim
56 words
The prosthetic repair fabric of claim 1 wherein said first and second sheets are joined by a plurality of points of attachment therebetween, said plurality of points of attachment being spaced from each other so that said first and second sheets are unattached and physically separable from each other between said plurality of points of attachment.
Claim 10
Dependent Claim
29 words
The prosthetic repair fabric recited in claim 2, wherein at least one of said first and second porous sheets has a single bar warp knit, dual course Atlas construction.
Claim 11
Dependent Claim
27 words
The prosthetic repair fabric recited in claim 9 wherein both of said first and second porous sheets has a single bar warp knit, dual course Atlas construction.
Claim 12
Dependent Claim
25 words
The prosthetic repair fabric recited in claim 1, wherein at least one of said first porous sheet and said second sheet is formed of polypropylene.
Claim 13
Dependent Claim
27 words
The prosthetic repair fabric according to claim 1, wherein said first sheet is joined to said second sheet with a plurality of stitches of a connecting yarn.
Claim 14
Dependent Claim
14 words
The prosthetic repair fabric according to claim 12, wherein said stitches include continuous stitches.
Claim 15
Dependent Claim
14 words
The prosthetic repair fabric according to claim 12, wherein said stitches include intermittent stitches.
Claim 16
Dependent Claim
19 words
The prosthetic repair fabric according to claim 14, wherein said connecting yarn is laid in between said intermittent stitches.
Claim 17
Dependent Claim
15 words
The prosthetic repair fabric according to claim 15, wherein said intermittent stitches are chain stitches.
Claim 18
Dependent Claim
20 words
The prosthetic repair fabric according to claim 1, consisting essentially of said first and second sheets and said barrier sheet.
Claim 19
Dependent Claim
38 words
The prosthetic repair fabric according to claim 1, wherein said surface portion of said second sheet is fused to said barrier without occluding the interstices in said first sheet so as not to adversely affect tissue ingrowth thereto.
Claim 20
Dependent Claim
23 words
The prosthetic repair fabric according to claim 1, wherein said barrier is in contact with said second sheet at a plurality of points.
Claim 21
Dependent Claim
27 words
The prosthetic repair fabric of claim 19 wherein said second sheet and said barrier are fused together at all of said plurality of points of contact therebetween.
Claim 22
Dependent Claim
18 words
The prosthetic repair fabric according to claim 2, wherein said first sheet is knitted to said second sheet.
Claim 23
Independent Claim
105 words
A method of limiting the incidence of postoperative adhesions arising from the repair of an opening in a tissue or muscle wall, wherein the opening is located near a region of potential postoperative adhesions, comprising the steps of: providing a composite prosthesis including a first sheet that is tissue infiltratible, a second sheet joined directly to the first sheet, and an adhesion resistant barrier sheet that is fused to the second sheet without degrading the physical and tissue infiltratible characteristics of the first sheet; and positioning the composite prosthesis with the barrier sheet extending between a region of potential postoperative adhesion and the first sheet.
Claim 24
Independent Claim
105 words
A method of limiting the incidence of postoperative adhesions arising from the repair of an opening in a tissue or muscle wall, wherein the opening is located near a region of potential postoperative adhesions, comprising the steps of: providing a composite prosthesis including a first sheet that is tissue infiltratible, a second sheet joined directly to the first sheet, and an adhesion resistant barrier sheet that is fused to the second sheet without degrading the physical and tissue infiltratible characteristics of the first sheet; and positioning the composite prosthesis with the barrier sheet extending between a region of potential postoperative adhesion and the first sheet.
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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) | 2003-09-19 | 2004-03-20 | 2004-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-09-19 | 2008-03-20 | 2008-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-09-19 | 2012-03-20 | 2012-09-19 | $7700.00 | Window Closed / Lapsed |