US5433996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated patch tissue repair sheet material
Assignee: W.L. Gore and Associates Inc
•
Filing: 1993-02-18
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Granted: 1995-07-18
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Expires: 2013-02-18
Abstract
Abstract A sheet of implantable patch tissue repair material comprising a layer of porous polytetrafluoroethylene sheet material laminated to a layer of mesh-type sheet material having a multiplicity of openings through the mesh-type sheet material, said openings having a mean minimum diameter of at least about 0.1 mm. The inventive patch tissue repair material offers good strength characteristics, good biocompatibility, suture retention, and flexibility.
Inventors
- 👤 Thane L. Kranzler
- 👤 Michael L. McDonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:31
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/0063; B; B32; B32B; B32B27/00; B32B27/12; A61L; A61L31/00; A61L31/04; A61L31/048; B32B27/32; B32B27/322; B32B3/00; B32B3/26; B32B3/266; B32B5/00; B32B5/22; B32B7/00; B32B7/04; B32B7/12; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30113; A61F2002/30125; A61F2002/30138; A61F2002/30143; A61F2002/30153; A61F2002/30154; A61F2002/30156; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30784; A61F2/3094; A61F2002/30971; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0008; A61F2230/0017; A61F2230/0019; A61F2230/0021; A61F2230/0023; A61F2240/00; A61F2240/001; B32B2262/00; B32B2262/02; B32B2262/0253; B32B2262/0276; B32B2262/0284; B32B2305/00; B32B2305/02; B32B2305/026; B32B2305/38; B32B2556/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/249921; Y10T428/249953; Y10T428/249978; Y10T428/249979; Y10T428/249982; Y10T428/249985; Y10T428/249987; Y10T428/249988; Y10T428/249991; Y10T428/249992; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/164; Y10T442/167
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
49 words
A sheet of implantable patch tissue repair material consisting essentially of a layer of porous polytetrafluoroethylene sheet material laminated to a layer of mesh-type sheet material having a multiplicity of openings through the mesh-type sheet material, said openings having a mean minimum diameter of at least about 0.1 mm.
Claim 2
Dependent Claim
49 words
A sheet of implantable patch tissue repair material consisting essentially of a layer of porous polytetrafluoroethylene sheet material laminated to a layer of mesh-type sheet material having a multiplicity of openings through the mesh-type sheet material, said openings having a mean minimum diameter of at least about 0.1 mm.
Claim 3
Dependent Claim
26 words
A sheet of implantable patch tissue repair material according to claim 1 wherein said openings have a mean minimum diameter of at least about 0.2 mm.
Claim 4
Dependent Claim
26 words
A sheet of implantable patch tissue repair material according to claim 1 wherein said openings have a mean minimum diameter of at least about 0.4 mm.
Claim 5
Dependent Claim
26 words
A sheet of implantable patch tissue repair material according to claim 1 wherein said openings have a mean minimum diameter of at least about 0.6 mm.
Claim 6
Dependent Claim
21 words
A sheet of implantable patch tissue repair material according to claim 1 wherein the mesh-type sheet material is comprised of polypropylene.
Claim 7
Dependent Claim
22 words
A sheet of implantable patch tissue repair material according to claim 1 wherein the mesh-type sheet material is comprised of polyethylene terephthalate.
Claim 8
Dependent Claim
21 words
A sheet of implantable patch tissue repair material according to claim 1 wherein the mesh-type sheet material is comprised of polytetrafluoroethylene.
Claim 9
Dependent Claim
22 words
A sheet of implantable patch tissue repair material according to claim 7 wherein the mesh-type sheet material is comprised of porous polytetrafluoroethylene.
Claim 10
Dependent Claim
30 words
A sheet of implantable patch tissue repair material according to claim 1 wherein the layer of porous polytetrafluoroethylene comprises porous expanded polytetrafluoroethylene having a microstructure of nodes interconnected by fibrils.
Claim 11
Dependent Claim
21 words
A sheet of implantable patch tissue repair material according to claim 9 wherein the mesh-type sheet material is comprised of polypropylene.
Claim 12
Dependent Claim
21 words
A sheet of implantable patch tissue repair material according to claim 9 wherein the mesh-type sheet material is comprised of polytetrafluoroethylene.
Claim 13
Dependent Claim
21 words
A sheet of implantable patch tissue repair material according to claim 9 wherein the mesh-type sheet material is comprised of polyethyleneterephthalate.
Claim 14
Dependent Claim
22 words
A sheet of implantable patch tissue repair material according to claim 11 wherein the mesh-type sheet material is comprised of porous polytetrafluoroethylene.
Claim 15
Dependent Claim
30 words
A sheet of implantable patch tissue repair material according to claim 1 wherein the layer of porous polytetrafluoroethylene is laminated to the layer of mesh-type sheet material by an adhesive.
Claim 16
Dependent Claim
18 words
A sheet of implantable patch tissue repair material according to claim 14 wherein the adhesive is silicone adhesive.
Claim 17
Dependent Claim
19 words
A sheet of implantable patch tissue repair material according to claim 14 wherein the adhesive is a fluoropolymer adhesive.
Claim 18
Dependent Claim
21 words
A sheet of implantable patch tissue repair material according to claim 14 wherein the adhesive is a fluorinated ethylene propylene adhesive.
Claim 19
Dependent Claim
19 words
A sheet of implantable patch tissue repair material according to claim 14 wherein the adhesive is a thermoplastic adhesive.
Claim 20
Dependent Claim
30 words
A sheet of implantable patch tissue repair material according to claim 1 wherein the layer of porous polytetrafluoroethylene is laminated to the layer of mesh-type sheet material by thermal bonding.
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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) | 1998-07-17 | 1999-01-16 | 1999-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-17 | 2003-01-16 | 2003-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-17 | 2007-01-16 | 2007-07-18 | $7700.00 | Window Closed / Lapsed |