Self-drilling bone screw

Details Self-drilling bone screw Self-drilling bone screw

2004-12-09

2009-12-29

Barrett, Thomas C (Department: 3775)

Surgery

Instruments

Orthopedic instrumentation

Reexamination Certificate

active

07637929

ABSTRACT:
A self drilling bone screw (10) comprises a shank (16) provided with a thread (14), a pitch of the thread (14) being in the region of approximately 0.7 to 1.0 mm. A tip angle is selected such that a thread flank (20) of a first flight (22) adjacent to a tip (18) of the bone screw (10) is arranged at a distance of approximately 0.2 to 0.5 mm from the tip (18) of the bone screw (10).

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Collins A. Jack, Mechanical Design of Machine Elements and Machines, 2003, John Wiley & Sons, Inc., pp. 468.

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