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US3272204A
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Absorbable collagen prosthetic implant with non-absorbable reinforcing strands
Assignee: Ethicon Inc
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Filing: 1965-09-22
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Granted: 1966-09-13
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Expires: 1985-09-22
Abstract
No abstract record available.
Inventors
- 👤 Artandi Charles
- 👤 Bechtol Lavon Dee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:52
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61L; A61L27/00; A61L27/40; A61L27/44; A61L27/48
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
66 words
A METHOD OF MANUFACTURING SURGICAL PROSTHESES WHICH COMPRISES THE STEPS OF: IMPREGNATING A NON-ABSORBABLE FABRIC WITH AN AQUEOUS ACID DISPERSION OF SWOLLEN COLLAGEN FIBRILS; FREEZING THE AQUEOUS ACID DISPERSION OF SWOLLEN COLLAGEN FIBRILS; IMMERSING THE FROZEN MASS IN A WATER-MISCIBLE ORGANIC SOLVENT CONTAINING SUFFICIENT BASE TO NEUTRALIZE THE ACID PRESENT IN SAID DISPERSION; REMOVING THE RESULTING STRUCTURE FROM THE ORGANIC SOLVENT; AND, DRYING THE RESULTING STRUCTURE.
Claim 2
Independent Claim
66 words
A METHOD OF MANUFACTURING SURGICAL PROSTHESES WHICH COMPRISES THE STEPS OF: IMPREGNATING A NON-ABSORBABLE FABRIC WITH AN AQUEOUS ACID DISPERSION OF SWOLLEN COLLAGEN FIBRILS; FREEZING THE AQUEOUS ACID DISPERSION OF SWOLLEN COLLAGEN FIBRILS; IMMERSING THE FROZEN MASS IN A WATER-MISCIBLE ORGANIC SOLVENT CONTAINING SUFFICIENT BASE TO NEUTRALIZE THE ACID PRESENT IN SAID DISPERSION; REMOVING THE RESULTING STRUCTURE FROM THE ORGANIC SOLVENT; AND, DRYING THE RESULTING STRUCTURE.
Claim 3
Dependent Claim
45 words
A SURGICAL PROSTHESIS COMPRISING: A WOVEN OPEN MESH NON-ABSORBABLE CYLINDRICAL TUBE, MANUFACTURED OF METERIAL SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE TEREPHYTHALATE AND TETRAFLUROETHYLENE POLYMER, AND COATED ON BOTH SIDES WITH A BODY ABSORBABLE SUBSTANCE CONSISTING OF COLLAGEN FIBRILS, WHEREBY THE PROSTHESIS IS RENDERED BLOODTIGHT.
Claim 4
Dependent Claim
45 words
A SURGICAL PROSTHESIS COMPRISING: A WOVEN OPEN MESH NON-ABSORBABLE CYLINDRICAL TUBE, MANUFACTURED OF METERIAL SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE TEREPHYTHALATE AND TETRAFLUROETHYLENE POLYMER, AND COATED ON BOTH SIDES WITH A BODY ABSORBABLE SUBSTANCE CONSISTING OF COLLAGEN FIBRILS, WHEREBY THE PROSTHESIS IS RENDERED BLOODTIGHT.
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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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |