Percussive tool, in particular for surgical use

Details Percussive tool, in particular for surgical use Percussive tool, in particular for surgical use

2005-05-17

2009-12-29

Nash, Brian D (Department: 3721)

Tool driving or impacting

Impacting devices

C173S091000, C227S010000, C227S130000, C227S120000

Reexamination Certificate

active

07637327

ABSTRACT:
The invention relates to a percussive tool having an oscillatory drive (3), the force of which is transmitted to a tool bit holder (25) by way of a drive member (17). Extending through the percussive tool is a longitudinal opening that allows a rod-shaped object, such as, for example, a guide wire, to be guided through the percussive tool. The tool bit holder (25) has a seat (34), which can receive the tool bit in different orientations. Moreover, the tool bit holder (25) is made of a combination of light metal and steel, which allows a reduction in acceleration forces and noise generation. A saddle-shaped coupling (24) is provided between the tool bit holder (25) and the drive member (17), which guarantees a tight fit.

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