Skull trepanation drill

Details Skull trepanation drill Skull trepanation drill

1980-04-18

1982-03-16

Thaler, Michael H.

Surgery

Truss

Pad

279 1B, 408224, A61B 1732

Patent

active

043195776

ABSTRACT:
A skull trepanation drill having a drive shaft, a main cutter engageable with the drive shaft under axial force and a sleeve-shaped housing slidable axially and rotatably on the drive shaft and provided at its free end with an auxiliary cutter. In use, the sleeve-shaped housing is restrained from axial movement on the drive shaft by a locking body extending into recesses in the housing and drive shaft. The housing is manually releasable from the drive shaft for cleaning by rotation of a cam on the latter. The cam moves a lock bolt axially of the drive shaft to a position permitting the locking body to retract from the recess in the housing.

REFERENCES:
patent: 2525669 (1950-10-01), Hainault
patent: 2842131 (1958-07-01), Smith
patent: 3115798 (1963-12-01), Donaway
Leaflet of 3M Deutschland GmbH entitled "DAS Craniotome 30-ein 3M Produkt."

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