Surgery – Instruments – Orthopedic instrumentation
Patent
1998-10-26
2000-12-19
Thaler, Michael H.
Surgery
Instruments
Orthopedic instrumentation
A61B 1756
Patent
active
061622257
ABSTRACT:
A combination driver and bone screw assembly comprising a screw shank with a uniform diameter threaded portion, an unthreaded portion with a outwardly tapered end and a driving end portion of substantially wedge shaped configuration which can be engagably seated in a wedge shaped notch seat of a driver member. The driver member comprises a body, a drive head defining a wedge shaped notch seat secured to the body forming a shoulder and a drive collar mounted around the drive head and seated on the shoulder.
In operation a bore is drilled in the patients bone with the top portion of the bore having a tapered geometry which widens from the diameter of the bore. The bone screw driving end portion is placed in the wedge shaped notch seat of a driver member and a drive collar is mounted around the driver drive head and engages the shoulder. The driver member is rotated driving the bone screw into the previously cut bore in the patients bone until the tapered surface of the bore engages the tapered undercut surface of the screw.
REFERENCES:
patent: 172351 (1876-01-01), Sloan
patent: 173356 (1876-02-01), Sloan
patent: 755804 (1904-03-01), Smith
patent: 1300275 (1919-04-01), Johnson
patent: 1336794 (1920-04-01), Stepanian
patent: 4128038 (1978-12-01), Urwin
patent: 4463753 (1984-08-01), Gustilo
patent: 4724731 (1988-02-01), Onofrio
patent: 4823650 (1989-04-01), Tuttle
patent: 5012624 (1991-05-01), Dahlgren
patent: 5367926 (1994-11-01), Mikic et al.
patent: 5403136 (1995-04-01), Mathys
patent: 5433569 (1995-07-01), Fall et al.
patent: 5443482 (1995-08-01), Stone et al.
patent: 5730744 (1998-03-01), Justin et al.
patent: 5968047 (1999-10-01), Reed
F. Albee, Bone Graft Surgery in Disease, Injury and Deformity, p. 22 (1940).
F. Albee, The Improved Albee Bone Mill, American Journal of Surgery, p. 657 (Mar., 1938).
Gertzman Arthur A.
Haines Timothy G.
Hale John S.
Ho Tan-Uyen T.
Musculoskeletal Transplant Foundation
Thaler Michael H.
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