Patent US3942532A successfully refreshed from Google Patents.
US3942532A
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US
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Braided suture
Assignee: Ethicon Inc
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Filing: 1974-08-15
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Granted: 1976-03-09
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Expires: 1994-08-15
Abstract
Abstract The tie-down characteristics of braided sutures are improved by applying to the surface thereof a polymeric ester of a dibasic acid and a glycol.
Inventors
- 👤 Alastair Wilson Hunter
- 👤 Darrell R. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:12
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/507; A; A61; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06166; A61L; A61L17/00; A61L17/14; A61L17/145; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
75 words
A suture having improved tie-down performance comprising a multifilament, the outer surface of the multiflament being coated with from about 0.4 percent to about 7 percent based on suture weight of an aliphatic polyester that is a solid at room temperature; said polyester having from 2 carbon atoms to about 12 carbon atoms between the ester linkages in the polymer chain and said polyester having a molecular weight in the range of 1,000 to 15,000.
Claim 2
Dependent Claim
75 words
A suture having improved tie-down performance comprising a multifilament, the outer surface of the multiflament being coated with from about 0.4 percent to about 7 percent based on suture weight of an aliphatic polyester that is a solid at room temperature; said polyester having from 2 carbon atoms to about 12 carbon atoms between the ester linkages in the polymer chain and said polyester having a molecular weight in the range of 1,000 to 15,000.
Claim 3
Dependent Claim
10 words
The suture of claim 1, characterized by a braided construction.
Claim 4
Dependent Claim
10 words
The suture of claim 1, characterized by a twisted construction.
Claim 5
Dependent Claim
10 words
The suture of claim 1, characterized by a covered construction.
Claim 6
Dependent Claim
43 words
The multifilament suture of claim 1, wherein the polyester has the formula: ##EQU7## wherein n is an integer larger than 1 and smaller than 13, m is an integer larger than 1 and smaller than 9 and X is the degree of polymerization.
Claim 7
Dependent Claim
26 words
The multifilament suture of claim 1, wherein the polyester has the formula: ##EQU8## wherein R is a polymethylene group and X represents the degree of polymerization.
Claim 8
Dependent Claim
24 words
The multifilament suture of claim 1, wherein the polyester is a condensate of adipic acid and 1,4-butanediol having a molecular weight of about 2,000-3,000.
Claim 9
Dependent Claim
28 words
The suture of claim 7, wherein said multifilament is a silk multifilament and the polyester coating amounts to about 5 percent of the weight of the untreated suture.
Claim 10
Dependent Claim
29 words
The suture of claim 7, wherein said multifilament is a polyethylene terephthalate multifilament, and the polyester coating amounts to about 1 percent of the weight of the untreated suture.
Claim 11
Dependent Claim
17 words
The multifilament suture of cliam 6, wherein the polyester coating has a molecular weight of about 2,000.
Claim 12
Dependent Claim
17 words
The multifilament suture of cliam 6, wherein the polyester coating has a molecular weight of about 2,000.
Claim 13
Dependent Claim
29 words
The suture of claim 10, wherein said multifilament is a polyethylene terephthalate multifilament and the polyester coating amounts to about 1 percent of the weight of the untreated suture.
Claim 14
Dependent Claim
28 words
The suture of claim 10, wherein said multifilament is a silk multifilament and the polyester coating amounts to about 5 percent of the weight of the untreated suture.
Claim 15
Dependent Claim
15 words
The multifilament suture of claim 1, characterized by a roughness of less than 1 pound.
Claim 16
Dependent Claim
15 words
The multifilament suture of claim 2, characterized by a roughness of less than 1 pound.
Claim 17
Dependent Claim
15 words
The multifilament suture of claim 3, characterized by a roughness of less than 1 pound.
Claim 18
Dependent Claim
15 words
The multifilament suture of claim 4, characterized by a roughness of less than 1 pound.
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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |