Surgery – Instruments – Orthopedic instrumentation
Patent
1996-03-26
1997-10-28
Hafer, Robert A.
Surgery
Instruments
Orthopedic instrumentation
606 96, 606 98, 606 86, 606 88, A61B 1717
Patent
active
056813201
ABSTRACT:
A bone-cutting guide having a base with a cylindrical tunnel for guiding a cutting instrument therethrough. The guide is anchored to the bone in at least three locations. A positioning arm having a distal end anchors the guide within a joint. An anchoring pin is insertable through the base alongside the cylindrical tunnel to stabilize the guide against the bone being drilled. An embodiment of the invention includes two anchoring pins on either side of the cylindrical tunnel through the base. The positioning arm can be stabilized within a joint due to stabilizing spikes extending from the distal end of the arm. A curve is provided in the positioning arm between two spikes to provide an opening through which a reamer guided through the cylindrical tunnel maybe operated.
REFERENCES:
patent: 2200120 (1940-05-01), Nauth
patent: 3867932 (1975-02-01), Huene
patent: 4708139 (1987-11-01), Dunbar, IV
patent: 4946462 (1990-08-01), Watanabe
patent: 5078719 (1992-01-01), Schreiber
patent: 5139520 (1992-08-01), Rosenberg
patent: 5163940 (1992-11-01), Bourque
patent: 5234430 (1993-08-01), Huebner
patent: 5257996 (1993-11-01), McGuire
Hafer Robert A.
Koo Benjamin
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