Patent US5593441A successfully refreshed from Google Patents.
US5593441A
Expired / Lapsed
US
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Method for limiting the incidence of postoperative adhesions
Assignee: CR Bard Inc
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Filing: 1995-06-07
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Granted: 1997-01-14
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Expires: 2015-06-07
Abstract
Abstract A composite prosthesis and method for limiting the incidence of postoperative adhesions. The composite includes a mesh fabric and a barrier which prevents exposure of the mesh fabric to areas of potential adhesion. The interstices of the mesh fabric are infiltrated by tissue which secures the prosthesis in place. The composite is positioned with the barrier relative to the region of potential adhesion, such as the abdominal viscera.
Inventors
- 👤 Irving L. Lichtenstein
- 👤 Carl R. Turnquist
- 👤 Parviz K. Amid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:22
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/0063; A61B; A61B90/00; A61B90/08; A61B2090/0815; A61B2090/0816; A61F2002/0068; A61F2210/00; A61F2210/0004; A61F2250/00; A61F2250/0014; A61F2250/0051
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
152 words
A method for limiting the incidence of postoperative adhesions arising from a repair of an opening in a tissue or muscle wall, wherein the opening is located near a region of potential postoperative adhesion, comprising: providing a composite prosthesis including an implantable material constructed and arranged to occlude the opening and having a plurality of interstices constructed and arranged to allow tissue ingrowth, and a barrier which does not substantially stimulate the formation of postoperative adhesions, the barrier covering the implantable material, whereby the composite prosthesis is securable in place by growth of neighboring tissue into the implantable material; and positioning the composite prosthesis for limiting the formation of postoperative adhesions with the implantable material filling or covering, thereby occluding, the tissue or muscle wall opening, and with the barrier facing away from the tissue or muscle wall opening and extending between the region of potential postoperative adhesion and the implantable material.
Claim 2
Independent Claim
152 words
A method for limiting the incidence of postoperative adhesions arising from a repair of an opening in a tissue or muscle wall, wherein the opening is located near a region of potential postoperative adhesion, comprising: providing a composite prosthesis including an implantable material constructed and arranged to occlude the opening and having a plurality of interstices constructed and arranged to allow tissue ingrowth, and a barrier which does not substantially stimulate the formation of postoperative adhesions, the barrier covering the implantable material, whereby the composite prosthesis is securable in place by growth of neighboring tissue into the implantable material; and positioning the composite prosthesis for limiting the formation of postoperative adhesions with the implantable material filling or covering, thereby occluding, the tissue or muscle wall opening, and with the barrier facing away from the tissue or muscle wall opening and extending between the region of potential postoperative adhesion and the implantable material.
Claim 3
Dependent Claim
18 words
The method recited in claim 1 wherein the implantable material stimulates an inflammatory reaction when implanted in tissue.
Claim 4
Dependent Claim
29 words
The method recited in claim 1 wherein said positioning step includes positioning the composite prosthesis with the implantable material extending across the opening to the tissue or muscle wall.
Claim 5
Dependent Claim
14 words
The method recited in claim 1 wherein the repair is a chest wall reconstruction.
Claim 6
Dependent Claim
14 words
The method recited in claim 1 wherein the repair is a ventral hernia repair.
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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) | 2000-01-14 | 2000-07-15 | 2001-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-01-14 | 2004-07-15 | 2005-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-01-14 | 2008-07-15 | 2009-01-14 | $7700.00 | Window Closed / Lapsed |