Patent US4602636A successfully refreshed from Google Patents.
US4602636A
Expired / Lapsed
US
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Suture wire with integral needle-like tip
Assignee: Joint Medical Products Corp
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Filing: 1984-12-03
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Granted: 1986-07-29
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Expires: 2004-12-03
Abstract
Abstract A monofilament surgical suture wire has a pointed needle-like tip, where the pointed tip is harder and stronger than the balance of the suture wire, is of one homogeneous piece with the wire, and has been made harder and stronger by local cold working.
Inventors
- 👤 Douglas G. Noiles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:28
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/842; A61B17/04; A61B17/06; A61B17/06066; A61B17/06166
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
64 words
A suture wire comprising a continuous length of a single piece of wire, said continuous length of wire having a uniform chemical composition, an essentially uniform diameter, and a first work hardened portion and a second soft, non-work hardened portion, the first portion forming one end of the length of wire and having a greater yield strength and greater hardness than the second portion.
Claim 2
Dependent Claim
64 words
A suture wire comprising a continuous length of a single piece of wire, said continuous length of wire having a uniform chemical composition, an essentially uniform diameter, and a first work hardened portion and a second soft, non-work hardened portion, the first portion forming one end of the length of wire and having a greater yield strength and greater hardness than the second portion.
Claim 3
Dependent Claim
39 words
A suture wire according to claim 1 wherein the length of wire includes a third portion, the third portion forming the other end of the wire and having a greater yield strength and greater hardness than the second portion.
Claim 4
Dependent Claim
17 words
A suture wire according to claim 1 wherein the first portion is sharpened to a pointed tip.
Claim 5
Dependent Claim
13 words
A suture wire according to claim 3 wherein the first portion is curved.
Claim 6
Dependent Claim
20 words
A suture wire according to claim 2 wherein the first and third portions are each sharpened to a pointed tip.
Claim 7
Dependent Claim
15 words
A suture wire according to claim 5 wherein the first and third portions are curved.
Claim 8
Dependent Claim
29 words
A suture wire according to claim 1 wherein the yield strength of the first portion is at least 25 percent greater than the yield strength of the second portion.
Claim 9
Dependent Claim
32 words
The suture wire of claim 2 wherein the yield strength of each of the first and third portions is at least 25 percent greater than the yield strength of the second portion.
Claim 10
Dependent Claim
91 words
A suture wire according to claim 1 wherein the greater yield strength and greater hardness of the first portion is created by cold-working that portion by bending the portion about a curve and rotating the portion about its own axis while bent, said rotation producing strain in the wire, the curvature of the bend being such that for each rotation the strain is greater than that strain which corresponds to the wire's yield strength so that the rotation cold works the bent portion of the wire by producing plastic deformation thereof.
Claim 11
Dependent Claim
95 words
A suture wire according to claim 2 wherein the greater yield strength and greater hardness of each of the first and third portions is created by cold-working that portion by bending the portion about a curve and rotating the portion about its own axis while bent, said rotation producing strain in the wire, the curvature of the bend being such that for each rotation the strain is greater than that strain which corresponds to the wire's yield strength so that the rotation cold works the bent portion of the wire by producing plastic deformation thereof.
Claim 12
Independent Claim
115 words
A method for producing a suture wire from a single piece of wire, said suture wire having a uniform chemical composition, an essentially uniform diameter, and first and second portions, the first portion having a greater yield strength and greater hardness than the second portion, comprising the steps of bending the first portion about a curve and rotating that portion about its own axis while bent, said rotation producing strain in the wire, the curvature of the bend being such that for each rotation the strain is greater than that strain which corresponds to the wire's yield strength so that the rotation cold works the bent portion of the wire by producing plastic deformation thereof.
Claim 13
Independent Claim
115 words
A method for producing a suture wire from a single piece of wire, said suture wire having a uniform chemical composition, an essentially uniform diameter, and first and second portions, the first portion having a greater yield strength and greater hardness than the second portion, comprising the steps of bending the first portion about a curve and rotating that portion about its own axis while bent, said rotation producing strain in the wire, the curvature of the bend being such that for each rotation the strain is greater than that strain which corresponds to the wire's yield strength so that the rotation cold works the bent portion of the wire by producing plastic deformation thereof.
References Cited (Backward Citations)
US363478A
Cited
US2591063A
Cited
US2883096A
Cited
US3094123A
Cited
US3038475A
Cited
US3233800A
Cited
US3311110A
Cited
US4535764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |