Polygonal bone punch

Surgery – Instruments – Orthopedic instrumentation

Patent

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Details

606185, 30358, A61B 1716

Patent

active

054376750

ABSTRACT:
A bone punch for altering the cross-section of a tunnel formed in a bone, the punch having a punch body with a distal region, a proximal region, and a plurality of planar guide faces extending between the distal and proximal regions to define a polygon in cross-section. The distal region terminates in a narrowed leading end to facilitate entry into the pre-drilled tunnel. A shaft is connected to the proximal region to transmit a force to drive the punch body into the bone tunnel to alter the cross-section shape of the bone tunnel to match the polygonal cross-section of the punch body.

REFERENCES:
patent: 1934962 (1933-11-01), Barry
patent: 2250434 (1941-07-01), Dugaw
patent: 3060782 (1962-10-01), Burgess
patent: 3143026 (1964-08-01), Akerson
patent: 4944744 (1990-07-01), Ray
patent: 5139499 (1992-08-01), Small et al.
patent: 5139520 (1992-08-01), Rosenberg
patent: 5163940 (1992-11-01), Bourque
The Paramax.TM. ACL Guide System Surgical Technique, a brochure of Linvatec Corporation, 1992.
Innovation & Documentation, a catalog of Instrument Makar, Inc., pp. 3-5, 1993.

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