Surgical wire driving assembly
US3975032A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1975 |
| Grant date | Aug 17, 1976 |
| Priority date | — |
| Expiry date | Mar 12, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/17752
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A wire driving assembly for use as a surgical instrument engages a wire in rotating driving relation through a retainer which includes a passageway therethrough for passage of the wire. Cooperating with the retainer is a body member, the latter including a bore in which the retainer is received. Driving connection between the retainer and the wire is achieved by a tapered interior bore of the body member and cooperating engaging elements received in sets of apertures located along the length of the retainer and radially thereof. Each set of apertures is of a different diameter, the diameter of the set at the forward end of the retainer being the largest. Spherical elements are positioned in the apertures and move radially inwardly to a wire engaging position and radially outwardly to a wire releasing position. In one form, a biasing spring urges the retainer towards the wire driving position and release of the wire is effected either by movement of a release element or rearward movement of the driving assembly relative to the wire. In another form, a biasing spring urges the body member forward of the retainer and release is effected by a manual release element. In still another fo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.