Bone tap apparatus

Details Bone tap apparatus Bone tap apparatus

1999-05-07

2000-05-30

Smith, Jeffrey A.

Surgery

Instruments

Orthopedic instrumentation

433165, A61B 1700

Patent

active

060686324

ABSTRACT:
A helical threaded bone tap (10,10',10") for preparing a surgical osteotomy with a defined thread configuration to allow for the insertion of a screw design implant. Incorporated into the tap are four cutting flutes (22) equally spaced, radially, to each other which allow for the removal of bone chips formed during the cutting of the thread. To better assist in this process, cutting flutes (22) are formed with a helical twist to draw the chips outward as the as the osteotomy is being tapped. Distal to the helical threaded bone tap (18) is a driving head having a polygonal configuration (26) and/or a latch type configuration (32) to allow these taps to be driven, respectively, by hand with a ratchet or by using a surgical drilling unit.

REFERENCES:
patent: 4365958 (1982-12-01), Vlock
patent: 4871313 (1989-10-01), Maillefer
patent: 4978350 (1990-12-01), Wagenknecht
patent: 5643269 (1997-07-01), Harle

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