Patent US4612923A successfully refreshed from Google Patents.
US4612923A
Expired / Lapsed
US
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Glass-filled, absorbable surgical devices
Assignee: Ethicon Inc
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Filing: 1983-12-01
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Granted: 1986-09-23
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Expires: 2003-12-01
Abstract
Abstract A surgical device fabricated from a synthetic absorbable polymer containing an absorbable glass filler.
Inventors
- 👤 Richard L. Kronenthal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:35
CPC Classifications
A; A61; A61L; A61L31/00; A61L31/14; A61L31/148; A61B; A61B17/00; A61B17/064; A61B17/12; A61B17/122; A61L31/12; A61L31/125; A61L31/127
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
26 words
An absorbable surgical device comprising a synthetic absorbable polymer containing an absorbable glass reinforcing filler in an amount sufficient to increase the stiffness of said polymer.
Claim 2
Dependent Claim
26 words
An absorbable surgical device comprising a synthetic absorbable polymer containing an absorbable glass reinforcing filler in an amount sufficient to increase the stiffness of said polymer.
Claim 3
Dependent Claim
12 words
The device of claim 1 wherein said glass is a phosphate glass.
Claim 4
Dependent Claim
20 words
The device of claim 2 wherein the glass also contains one or more oxides of sodium, potassium, calcium, and magnesium.
Claim 5
Dependent Claim
10 words
The device of claim 1 wherein said polymer is poly-1,4-dioxanone.
Claim 6
Dependent Claim
17 words
The device of claim 1 wherein said polymer is a homopolymer or copolymer of glycolide or lactide.
Claim 7
Dependent Claim
16 words
The device of claim 1, 2, 3, 4, or 5 in the form of a staple.
Claim 8
Dependent Claim
17 words
The device of claim 1, 2, 3, 4, or 5 in the form of a ligating clip.
Claim 9
Dependent Claim
17 words
The device of claim 1 wherein the glass reinforcing filler is in the form of a powder.
Claim 10
Dependent Claim
14 words
The device of claim 1 wherein the glass reinforcing filler is in fibrous form.
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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) | 1989-09-22 | 1990-03-24 | 1990-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-22 | 1994-03-24 | 1994-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-22 | 1998-03-24 | 1998-09-23 | $7700.00 | Window Closed / Lapsed |