Apparatus for bending dental root canal instruments

Details Apparatus for bending dental root canal instruments Apparatus for bending dental root canal instruments

1991-06-07

1992-05-05

Wilson, John J.

Dentistry

Apparatus

Hand manipulatable implement

433102, 140106, A61C 300

Patent

active

051102919

ABSTRACT:
Apparatus for bending dental instrument for use in root canals. The apparatus includes two rotatable sleeves made of plastic material one of which is carried by a stationary element which acts as a handle and the other one of which is carried by a movable member articulated on the handle. A coil spring interposed between the handle and the movable member urges the two sleeves to be maintained at distance one from each other. The blade of the instrument to be bent is engaged between the two sleeves when they are positioned distant from each other. A force then is exerted on the movable member for moving one of the sleeves toward the other one and pinching the blade of the instrument between them. Then, while the blade is pinched between the sleeves, a traction is exerted on the instrument accompanied with a lateral displacement that produces the bending of the blade.

REFERENCES:
patent: 644932 (1900-03-01), Miller
patent: 3199549 (1965-08-01), Wallshein
patent: 4470289 (1984-09-01), Sinclair et al.
patent: 4708651 (1987-11-01), Buchanan
patent: 4889487 (1989-12-01), Lovaas

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