US3890975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled release suture
Assignee: Ethicon Inc
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Filing: 1973-10-26
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Granted: 1975-06-24
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Expires: 1993-10-26
Abstract
Abstract A needle-suture combination is provided which has a suture pullout value between 3 ounces and 26 ounces. The suture, one end of which is sized with a resin and smaller in diameter than the rest of the suture, is manufactured by placing the suture under tension, immersing a small section of the suture in a liquid resin solution, and drying to remove the solvent. The tension is then relaxed and the sized end of the suture inserted into a needle which is swaged to predetermined dimensions.
Inventors
- 👤 Walter Mcgregor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:42
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06166; A61B17/06004; A61B17/06195; A61B2017/06028
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
114 words
A needle-suture combination comprising a needle having a sharp end and a blunt end and having an opening in said blunt end; and a suture one end of which is coated with a resin and of smaller diameter than the remainder of the suture, said resincoated end being received within said opening with the remainder of said suture extending outwardly of said blunt end, said blunt end of said needle being swaged to the extent that the resincoated end of said suture is compressed to from about 62% to about 75% of its original diameter and said needle-suture combination is characterized by a suture pull-out value of from about 3 to about 26 ounces.
Claim 2
Dependent Claim
114 words
A needle-suture combination comprising a needle having a sharp end and a blunt end and having an opening in said blunt end; and a suture one end of which is coated with a resin and of smaller diameter than the remainder of the suture, said resincoated end being received within said opening with the remainder of said suture extending outwardly of said blunt end, said blunt end of said needle being swaged to the extent that the resincoated end of said suture is compressed to from about 62% to about 75% of its original diameter and said needle-suture combination is characterized by a suture pull-out value of from about 3 to about 26 ounces.
Claim 3
Dependent Claim
20 words
A needle-suture combination of claim 1 wherein the opening in the blunt end of said needle is a drilled hole.
Claim 4
Dependent Claim
20 words
A needle-suture combination of claim 1 wherein the opening in the blunt end of said needle is a preclosed channel.
Claim 5
Dependent Claim
25 words
A needle-suture combination of claim 1 wherein the suture is a braid of a meterial selected from the group consisting of silk, polyester, and nylon.
Claim 6
Dependent Claim
27 words
A needle-suture combination of claim 4 wherein the suture is a polyester selected from the group consisting of polyhydroxyacetic ester and a copolymer of glycolide and L(-)lactide.
Claim 7
Dependent Claim
12 words
A needle-suture combination of claim 1 wherein the suture is covered silk.
Claim 8
Dependent Claim
21 words
A needle-suture combination of claim 1 wherein the resin is selected from the group consisting of polyester resins and epoxy resins.
Claim 9
Dependent Claim
31 words
A needle-suture combination of claim 1 wherein the needle is selected from the group consisting of a curved needle, a straight needle, a cutting edge needle, and a taper point needle.
Claim 10
Dependent Claim
97 words
A needle-suture combination comprising a needle having a sharp end and a blunt end and having an opening in said blunt end, and a monofilament suture of a size at least 5/0 one end of which is received within said opening with the remainder extending outwardly of said blunt end, said blunt end being swaged to the extent that the received end of said suture is compressed to from about 62% to about 75% of its original diameter and said needle-suture combination is characterized by a suture pull-out value of from about 3 to about 26 ounces.
Claim 11
Dependent Claim
97 words
A needle-suture combination comprising a needle having a sharp end and a blunt end and having an opening in said blunt end, and a monofilament suture of a size at least 5/0 one end of which is received within said opening with the remainder extending outwardly of said blunt end, said blunt end being swaged to the extent that the received end of said suture is compressed to from about 62% to about 75% of its original diameter and said needle-suture combination is characterized by a suture pull-out value of from about 3 to about 26 ounces.
Claim 12
Dependent Claim
20 words
A needle-suture combination of claim 9 wherein the opening in the blunt end of said needle is a drilled hole.
Claim 13
Dependent Claim
20 words
A needle-suture combination of claim 9 wherein the opening in the blunt end of said needle is a preclosed channel.
Claim 14
Dependent Claim
20 words
A needle-suture combination of claim 9 wherein the suture composition is selected from the group consisting of nylon and polypropylene.
Claim 15
Dependent Claim
31 words
a needle-suture combination of claim 9 wherein the needle is selected from the group consisting of a curved needle, a straight needle, a cutting edge needle, and a taper point needle.
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) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |