Multi-use screwdriver for adjustable compression screws
US9498229B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2009 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Mar 29, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/1617
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An adjustable screwdriver for selectively driving an adjustable compression screw into a substrate. A distal tip of a adjustable head driver is configured to engage an adjustable head of an adjustable compression screw. A shaft driver is concentrically disposed in the adjustable head driver. A distal tip of the shaft driver is configured to engage the head of the screw shaft of the adjustable compression screw for use in rotating the screw shaft. The shaft driver is configured to selectively lock in an even driving position, in which the adjustable head driver and the shaft driver cooperatively drive the adjustable head and the screw shaft. The shaft driver is configured to selectively lock in a retracted driving position wherein the distal tip of the shaft driver is recessed in the adjustable head driver to thereby drive the adjustable head without the shaft driver driving the screw shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.