STOMATOLOGIC ANGULAR END PIECE Russian patent published in 1998 - IPC

FIELD: medical engineering; stomatologic instruments. SUBSTANCE: end piece has head with cover and threaded fixing, body and coupling thread. Head includes instrument securing mechanism made as capron bushing located in bronze-and-graphite drive. Head also includes rotary mechanism consisting of driven spur gear positioned on bronze-and-graphite drive and driving crown gear secured on drive shaft. Rotation is effected in antifriction bearings installed in head and in driving bearing located in body. Head has cooling liquid cavity coupled with tube through hole, and rubber ring is placed on washed with recess. Instrument center is fitted with hollow opening through which cooling liquid is supplied to tissues being treated. EFFECT: higher quality of treatment. 2 cl, 1 dwg