Rotary drill for surgeons

Details Rotary drill for surgeons Rotary drill for surgeons

1976-03-02

1977-10-25

Michell, Robert W.

Surgery

Truss

Pad

32 26, 279 77, 64 4, A61B 1700

Patent

active

040551857

ABSTRACT:
A small housing which may be held in the hand of a surgeon has an open ended socket into which a rotary bur assembly may be inserted and latched in place. A driven gear on the rotary bur assembly meshes with a driving gear at the end of the socket. The rotary bur assembly includes a sleeve supporting the bur on axially spaced bearings, and the sleeve has an external annular shoulder. A latch moves through a side window in the housing to engage the annular shoulder to hold the gears in proper mesh, and a spring prevents accidental disengagement of the latch.

REFERENCES:
patent: 949439 (1910-02-01), Rhyne
patent: 2894759 (1959-07-01), De Bruin
patent: 3835858 (1974-09-01), Hagen

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