Medical instrument for driving a suture needle
US5376096A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1993 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Dec 17, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00349
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needle driver (100) for fixedly positioning a curved suture needle (101) in a channel (114) of an inner rod (109) thereof and in a preferred 90 degree orientation with respect to the longitudinal axis of the inner rod. The needle driver includes an outer tube (102) with a beveled edge (110) positioned transversely at the distal end thereof. The beveled edge includes a substantially straight segment (119) inclined at a preferred angle with respect to the longitudinal axis of the outer tube. The channel of the inner rod includes an undercut surface (116) and an intermediate surface (117) extending longitudinally therefrom. The undercut surface is formed at a preferred angle with respect the longitudinal axis of the inner rod, whereas the intermediate surface is substantially parallel to the axis. The inclined, substantially straight segment of the outer tube beveled edge and the undercut and intermediate surfaces of the inner rod channel cooperate when urged toward each other to fixedly position a curved suture needle in the desired 90 degree orientation. The needle driver also includes a generally U-shaped spring handle (107) attached proximate the proximal ends (122, 134) of the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.