Device for implant work

Details Device for implant work Device for implant work

1991-04-23

1992-03-24

Wilson, John J.

Dentistry

Apparatus

Tool bit

408226, A61C 302

Patent

active

050982931

ABSTRACT:
In connection with implant work on the dentine, a machining instrument is used which is provided with an attachment part for attachment to a rotary unit or for attachment to extension unit, which in turn can be applied to the rotary unit. The extension unit has a thickened central section which is provided with a recess or opening in which an inclined surface is arranged. In the applied position of a machining instrument, one surface of its attachment part is set against the inclined surface of the extension unit. The extension unit and the machining instrument are rotationally-fixed with respect to each other. Moreover, a locking effect is achieved between the extension unit and the machining instrument as a result of a secure wedging effect obtained by means of the inclined surface.

REFERENCES:
patent: 1471702 (1923-10-01), Mulac
patent: 3576076 (1971-04-01), Weissman
patent: 4255145 (1981-03-01), Weissman

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