Compression handle for securing a dental root-canal instrument

Details Compression handle for securing a dental root-canal instrument Compression handle for securing a dental root-canal instrument

1985-01-28

1986-04-15

Wilson, John J.

Dentistry

Apparatus

Broach

433147, A61C 502

Patent

active

045824894

ABSTRACT:
In a compression handle for securing a dental root-canal instrument, a helical spring (10) is positioned between the threaded end (2) of the grip (1) and the screw-on cap (3) and loosely surrounds the shaft (5) of the instrument with its coils extending in the opposite direction from that of the threading and with its ends accommodated stationary in bores (12 & 13) in the threaded mechanisms (2 & 3) in such a way that it is screwed in and compresses the shaft of the instrument when the cap is screwed on.

REFERENCES:
patent: 1527845 (1925-02-01), Daniel
patent: 4021918 (1977-05-01), Bailey
patent: 4251214 (1981-02-01), Schnall

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