Surgery – Instruments – Orthopedic instrumentation
Patent
1992-09-11
1994-04-26
Pellegrino, Stephen C.
Surgery
Instruments
Orthopedic instrumentation
408241G, A61F 504
Patent
active
053062787
ABSTRACT:
A drill guide for use in corticotomy procedures includes a head having a first end forming tines for penetrating and gripping the bone, a second end generally opposite the first end, and a plurality of drill guide passages extending between the first and second ends. The drill guide passages are arranged at different angles to permit a drill bit to bore into the cortex at different angles and different depths to form a circumferential region of weakened cortex. In use, the drill guide is positioned on the bone at a selected fracture site and a drill bit is operated through selected guide passages to bore into the cortex at the fracture site, thereby weakening a circumferential region of the cortex. Any remaining cortex is broken to complete the corticotomy procedure.
REFERENCES:
patent: 2181746 (1939-11-01), Siebrandt
patent: 4421112 (1983-12-01), Mains et al.
patent: 4444180 (1984-04-01), Schneider et al.
patent: 4788970 (1988-12-01), Kara et al.
patent: 4881534 (1989-12-01), Uhl et al.
patent: 4920958 (1990-05-01), Walt et al.
patent: 5078719 (1992-01-01), Schreiber
patent: 5180388 (1993-01-01), DiCarlo
John Lindquist, "Surgical Instruments and Apparatus" International Abstracts of Surgery, vol. 77, p. 529 (1944).
Clewett Richard H.
Dahl Mark T.
Ace Medical Company
Pellegrino Stephen C.
Tucker Guy V.
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