US4699142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microsurgical suture needles
Assignee: D Drukker and ZN NV
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Filing: 1986-06-19
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Granted: 1987-10-13
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Expires: 2006-06-19
Abstract
Abstract Microsurgical suture needles are made by providing a precious stone plate with main surfaces extending obliquely with respect to the longitudinal axis. A metal shank is provided with an end face extending correspondingly obliquely with respect to its longitudinal axis. The precious stone plate is attached with one main surface on the oblique end face of the metal shank. The other main surface of the precious stone plate is ground and provided with a sharp tip and cutting edges.
Inventors
- 👤 Michael Seal
- 👤 Franciscus M. Berkhout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:18
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06066; A61B17/06004; B; B23; B23P; B23P5/00; A61B2017/06028; A61B2017/06042; Y; Y10; Y10S; Y10S76/00; Y10S76/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
Micorsurgical suture needle comprising a precious stone plate formed with main surfaces extending obliquely with respect to the longitudinal axis, an end face extending correspondingly obliquely with respect to the longitudinal axis being ground at one end of a metal shank, on which the precious stone plate is attached with one main surface on the oblique end face of the metal shank, wherein the other main surface of the precious stone plate is ground and provided with a sharp tip and cutting edges.
Claim 2
Dependent Claim
83 words
Micorsurgical suture needle comprising a precious stone plate formed with main surfaces extending obliquely with respect to the longitudinal axis, an end face extending correspondingly obliquely with respect to the longitudinal axis being ground at one end of a metal shank, on which the precious stone plate is attached with one main surface on the oblique end face of the metal shank, wherein the other main surface of the precious stone plate is ground and provided with a sharp tip and cutting edges.
Claim 3
Dependent Claim
24 words
Microsurgical suture needle according to claim 1, wherein a recess is provided in the precious stone plate at the side of the metal shank.
Claim 4
Dependent Claim
15 words
Microsurgical suture needle according to claim 1, wherein the precious stone plate consists of diamond.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-12 | 1991-04-13 | 1991-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-12 | 1995-04-13 | 1995-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-12 | 1999-04-13 | 1999-10-13 | $7700.00 | Window Closed / Lapsed |