US3875946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled release suture
Assignee: Ethicon Inc
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Filing: 1974-02-27
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Granted: 1975-04-08
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Expires: 1994-02-27
Abstract
Abstract A needle-suture combination having a suture pull-out value in the range of 1 to 26 ounces is manufactured by applying sufficient tension to the suture to move it relative to the needle barrel and releasing the tension when the force drops to within the following range for that size of suture:Suture Size Ounces ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 8/0 1. - 2. 7/0 1. - 3. 6/0 2. - 5. 5/0 3. - 7. 4/0 5. - 15. 3/0 5. - 23. 2/0 5. - 26. 1/0 10. - 26. 1 10. - 26. 2 and larger 10. - 26. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Inventors
- 👤 Robert Barclay Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:14
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06004
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
84 words
In a method of manufacturing a swaged needle-suture combination comprising a needle having pointed and blunt ends, said needle having an opening in the blunt end thereof and a suture, one end of which is received within said opening, the improvement comprising pre-stressing the suture with respect to said needle by applying sufficient tension to the suture to move it relative to said needle; and releasing the tension when the force drops to a value within the following range for that size of suture
Claim 2
Dependent Claim
84 words
In a method of manufacturing a swaged needle-suture combination comprising a needle having pointed and blunt ends, said needle having an opening in the blunt end thereof and a suture, one end of which is received within said opening, the improvement comprising pre-stressing the suture with respect to said needle by applying sufficient tension to the suture to move it relative to said needle; and releasing the tension when the force drops to a value within the following range for that size of suture
Claim 3
Dependent Claim
80 words
A swaged needle-suture combination comprising a needle having pointed and blunt ends, said needle having an opening in the blunt end thereof and a suture, one end of which is received within said opening said suture being pre-stressed with respect to said needle so that the suture is displaced from the inner end of said opening whereby the suture may be pulled out of the needle by a force that is within the following range for that size of suture
Claim 4
Dependent Claim
80 words
A swaged needle-suture combination comprising a needle having pointed and blunt ends, said needle having an opening in the blunt end thereof and a suture, one end of which is received within said opening said suture being pre-stressed with respect to said needle so that the suture is displaced from the inner end of said opening whereby the suture may be pulled out of the needle by a force that is within the following range for that size of suture
Claim 5
Dependent Claim
24 words
The needle-suture combination of claim 2, wherein the suture is displaced from the inner end of the opening a distance of about 0.08 inches.
Claim 6
Dependent Claim
33 words
The needle-suture combination of claim 2, wherein the suture is displaced from the inner end of the opening a distance of about 42 to 50 per cent of the length of said opening.
Claim 7
Dependent Claim
13 words
The needle-suture combination of claim 2, wherein the needle is a drilled needle.
Claim 8
Dependent Claim
13 words
The needle-suture combination of claim 2, wherein the needle is a channel needle.
Claim 9
Dependent Claim
14 words
The needle-suture combination of claim 2, wherein the suture is a covered silk suture.
Claim 10
Dependent Claim
14 words
The needle-suture combination of claim 2, wherein the suture is a braided polyester suture.
Claim 11
Dependent Claim
12 words
The needle-suture combination of claim 8, wherein said polyester is polyhydroxyacetic ester.
Claim 12
Dependent Claim
17 words
The needle-suture combination of claim 8, wherein said polyester is a copolymer of glycolide and L(-) lactide.
Claim 13
Dependent Claim
14 words
The needle-suture combination of claim 2, wherein the suture is a braided nylon suture.
Claim 14
Dependent Claim
13 words
The needle-suture combination of claim 2, wherein the suture is a braided suture.
Claim 15
Dependent Claim
14 words
The needle-suture combination of claim 2, wherein the suture is a braided silk suture.
Claim 16
Dependent Claim
12 words
The needle-suture combination of claim 2, wherein the suture is a monofilament.
Claim 17
Dependent Claim
13 words
The needle-suture combination of claim 2, wherein the needle is a curved needle.
Claim 18
Dependent Claim
13 words
The needle-suture combination of claim 2, wherein the needle is a straight needle.
Claim 19
Dependent Claim
14 words
The needle-suture combination of claim 2, wherein the needle is a cutting edge needle.
Claim 20
Dependent Claim
14 words
The needle-suture combination of claim 2, wherein the needle is 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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |