Dentistry – Apparatus – Broach
Patent
1986-10-08
1988-09-27
Peshock, Robert
Dentistry
Apparatus
Broach
433122, 433118, A01C 502
Patent
active
047738553
ABSTRACT:
Drive head for an endodontic treatment instrument composed of a support body provided with a passage, an instrument support member having a longitudinal axis and mounted in the passage for movement relative to the body in the direction of the longitudinal axis, and drive components coupled to the instrument support member for inparting to the instrument support member alternating movements in the direction of the longitudinal axis, said instrument support member supports an andodontic treatment instrument in a manner to cause the instrument to move with the support in the direction of said longitudinal axis and to have a freedom of rotation about the longitudinal axis and relative to the support body and/or to cause the alternating movements in the direction of the longitudinal axis to have a variable amplitude.
REFERENCES:
patent: 2135933 (1938-11-01), Blair
patent: 4299571 (1981-11-01), McSpadden
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