Positive feed system for a surgical ligating instrument
US4572183A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 1984 |
| Grant date | Feb 25, 1986 |
| Priority date | — |
| Expiry date | Nov 26, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53783
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved clip feed system for a surgical ligating instrument of the type having first and second clip-clamping jaws at its forward end, a pair of handles to shift the jaws between open, clip-feeding and closed, clip-clamping positions, an elongated tube-like clip magazine containing a plurality of clips lying in a row, one behind the other, in the same plane and a feeder shoe to constantly urge the row of clips toward the forward end of the instrument and the forwardmost clip to a staging area in front of the magazine, a pusher track parallel to the clip magazine and extending to the forward ends of the jaws, and a pusher actuated by the handles between a retracted clip-receiving position when the handles and jaws are in their clip-clamping positions and an extended position locating a clip at the forward ends of the jaws when the handles and the jaws are in their clip-feeding positions. The improved clip-feed system comprises a plunger normally located in and biased to an unactuated position adjacent the staging area. The plunger is shiftable by the second jaw, as the second jaw moves to its clip-clamping position, to an actuated position wherein the plunger positively shifts t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.