US3910282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Needling monofilament sutures
Assignee: Wyeth Holdings LLC
•
Filing: 1974-05-22
•
Granted: 1975-10-07
•
Expires: 1994-05-22
Abstract
Abstract The breakage of monofilament stainless steel sutures and other monofilament sutures at the point of attachment to eyeless needles is markedly reduced by counterboring the eyeless needle so that flexing is reduced at the point of crimp and the sharp radius of curvature at the departure from the needle is minimized.
Inventors
- 👤 Philip Joseph Messer
- 👤 Sol Singerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:06
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A stainless steel suture in combination with a surgical suture needle comprising: a stainless steel monofilament surgical suture and a needle, the needle comprising a pointed end on said needle, a round cylindrical shank portion of said needle, and an axial suture socket portion at the back end of the needle and of uniform diameter with the shank, said socket portion consisting, before crimping, of a suture holding bore slightly larger than said suture at the inner end of the socket, and an essentially concentric cylindrical counterbore slightly larger than the suture holding bore, between said suture holding bore and the back end of the needle, said suture being inserted and retained in said suture holding bore in said needle, retention being by at least a portion of said suture holding bore being crimped into frictionally engaging relAtionship with said suture, in which the stainless steel suture diameter, the suture holding bore diameter and depth, the counterbore diameter and depth, and needle diameter are selected from the table:
Claim 2
Dependent Claim
168 words
A stainless steel suture in combination with a surgical suture needle comprising: a stainless steel monofilament surgical suture and a needle, the needle comprising a pointed end on said needle, a round cylindrical shank portion of said needle, and an axial suture socket portion at the back end of the needle and of uniform diameter with the shank, said socket portion consisting, before crimping, of a suture holding bore slightly larger than said suture at the inner end of the socket, and an essentially concentric cylindrical counterbore slightly larger than the suture holding bore, between said suture holding bore and the back end of the needle, said suture being inserted and retained in said suture holding bore in said needle, retention being by at least a portion of said suture holding bore being crimped into frictionally engaging relAtionship with said suture, in which the stainless steel suture diameter, the suture holding bore diameter and depth, the counterbore diameter and depth, and needle diameter are selected from the table:
References Cited (Backward Citations)
US2411079A
Cited
US2583625A
Cited
US2728343A
Cited
US3265070A
Cited
US3160157A
Cited
US3394704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |