Contra-angle handpiece for rotary surgical instruments, in...

Details Contra-angle handpiece for rotary surgical instruments, in... Contra-angle handpiece for rotary surgical instruments, in...

2007-01-02

2007-01-02

O'Connor, Cary E. (Department: 3732)

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

C433S133000

Reexamination Certificate

active

10514754

ABSTRACT:
A driven appliance, such as a contra-angle handpiece for surgical instruments, in particular for dental surgery, includes a handle, a neck and a head for receiving an instrument. The handle and the neck of the contra-angle handpiece each receive a drive shaft, respectively, an input shaft and an output shaft, which are linked to each other by a gear train. The input shaft and the output shaft are slidingly mounted in their respective bodies, which forms a sheath for the two shafts. The shafts are maintained and supported on stops arranged on the corresponding sheathes through a single elastic element which is housed in the bend linking the handle to the neck.

REFERENCES:
patent: 4278428 (1981-07-01), Straihammer et al.
patent: 4406621 (1983-09-01), Bailey
patent: 6042377 (2000-03-01), Ito
patent: 6245086 (2001-06-01), Storz
patent: 2002/0009690 (2002-01-01), Kuhn et al.
patent: 938438 (1956-02-01), None
patent: 1243246 (1960-10-01), None
patent: 218792 (1924-07-01), None

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