US5824082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Patch for endoscopic repair of hernias
Assignee: BROWN RODERICK B MD DR
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Filing: 1997-07-14
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Granted: 1998-10-20
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Expires: 2017-07-14
Abstract
Abstract A prosthesis for use in hernia repair surgery having a preformed prosthetic fabric supported along its periphery by shape memory alloy wire having a transformation temperature corresponding to normal body temperature allowing the prosthesis to be tightly rolled into a cylindrical configuration for delivery through a laparoscopic instrument and which deploys to a predetermined shape as it warms up to body temperature.
Inventors
- 👤 Roderick B. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:52
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/0063; A61F2002/0068; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/001
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
60 words
A hernia repair patch comprising: (a) a wire frame formed from a shape memory alloy wherein the wire frame has an hour-glass shape when the shape memory alloy is in a austenite form and a rolled compact shape when in a martensite form; and (b) a prosthetic fabric material attached to and supported along a periphery thereof by said frame.
Claim 2
Dependent Claim
60 words
A hernia repair patch comprising: (a) a wire frame formed from a shape memory alloy wherein the wire frame has an hour-glass shape when the shape memory alloy is in a austenite form and a rolled compact shape when in a martensite form; and (b) a prosthetic fabric material attached to and supported along a periphery thereof by said frame.
Claim 3
Dependent Claim
32 words
The hernia repair patch of claim 1 wherein the shape memory alloy comprises NiTi with a percentage of Ni in the alloy in a range of from 49 to 51 atomic percent.
Claim 4
Dependent Claim
20 words
The hernia repair patch of claim 2 wherein the shape memory alloy exhibits a transformation temperature of about 37° C.
Claim 5
Dependent Claim
36 words
The hernia repair patch as in any one of claims 1, 2 or 3 in which the prosthetic fabric material is selected from a group consisting of a woven mesh of polypropylene fibers and expanded PTFE.
Claim 6
Dependent Claim
45 words
The hernia repair patch as in claim 1 wherein the prosthetic fabric material is generally planar and has a major longitudinal dimension in a range of from 6 to 12 cm and a minor transverse dimension in a range of from 4 to 8 cm.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-10-19 | 2002-04-20 | 2002-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-19 | 2006-04-20 | 2006-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-19 | 2010-04-20 | 2010-10-20 | $7700.00 | Window Closed / Lapsed |