US4510934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suture
Assignee: Individual
•
Filing: 1983-05-13
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Granted: 1985-04-16
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Expires: 2003-05-13
Abstract
Abstract A surgical suture is described which consists of a monofilament core and a braided sheath surrounding the core. The sheath and the core are temporarily secured together at one end so that the core acts as a stiffener for the sheath during the surgical procedure. After the core and sheath are detached, the core is removed from the sheath and discarded, whereupon the sheath becomes flexible and easy to tie into a secure knot.
Inventors
- 👤 Subhash K. Batra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:36
CPC Classifications
D; D04; D04C; D04C1/00; D04C1/06; D04C1/12; A; A61; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06166; A61B17/06066; D10; D10B; D10B2509/00; D10B2509/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2936
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
A surgical suture having a removable monofilament core extending the entire length of the suture, and a braided flexible sheath surrounding said core, said core and said sheath being separably fastened together at one end, said combination of core and sheath having sufficient stiffness to permit penetration of flesh, whereby said core is removed after penetration of flesh permitting tying of said sheath into a secure knot.
Claim 2
Dependent Claim
67 words
A surgical suture having a removable monofilament core extending the entire length of the suture, and a braided flexible sheath surrounding said core, said core and said sheath being separably fastened together at one end, said combination of core and sheath having sufficient stiffness to permit penetration of flesh, whereby said core is removed after penetration of flesh permitting tying of said sheath into a secure knot.
Claim 3
Dependent Claim
20 words
The suture of claim 1 wherein a pointed tip is formed at one end of said combination core and sheath.
Claim 4
Dependent Claim
14 words
The suture of claim 2 wherein said one end is formed into a curve.
Claim 5
Dependent Claim
19 words
The suture of claim 1 wherein said core extends beyond said sheath at the other end of said sheath.
Claim 6
Dependent Claim
14 words
The suture of claim 1 wherein said sheath is formed from a bio-compatible material.
Claim 7
Dependent Claim
11 words
The suture of claim 5 wherein said bio-compatible material is polyester.
Claim 8
Dependent Claim
19 words
The suture of claim 1 wherein said sheath extends beyond said core at the other end of said core.
Claim 9
Dependent Claim
19 words
The suture of claim 2 wherein said tip is formed by heat fusion of said sheath and said core.
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) | 1988-04-15 | 1988-10-15 | 1989-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-15 | 1992-10-15 | 1993-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-15 | 1996-10-15 | 1997-04-16 | $7700.00 | Window Closed / Lapsed |