Surgery – Instruments – Orthopedic instrumentation
Patent
1988-02-04
1990-01-16
Hafer, Robert A.
Surgery
Instruments
Orthopedic instrumentation
606 82, A61F 504
Patent
active
048936197
ABSTRACT:
A device for guiding an osteotomy to be performed on the proximal end of a humerus that has a proximal sawguide alignable on a selected surface of the proximal end of the humerus for defining a saw line thereon; a radial arm connecting the sawguide to a distal mechanism for stably aligning the sawguide, the distal alignment mechanism has a pair of opposing lateral and medial epicondyle arms pivotally engageable with the lateral and medial sides of the distal end of the humerus, the epicondyle arms being pivotally mounted in a distal cross arm, the distal end of the radial arm being slidably mounted in the cross arm for distal to proximal slidable movement therein; the proximal end of the radial arm being rotatably connected to the sawguide through a proximal guide bar; the radial arm being supported above the humerus by the proximal guide bar and the epicondyle arms.
REFERENCES:
patent: 4364381 (1982-12-01), Sher
patent: 4524766 (1985-06-01), Petersen
patent: 4627425 (1986-12-01), Reese
patent: 4757810 (1988-07-01), Reese
Burkhead Wayne Z.
Burkinshaw Brian D.
Dale James L.
Brown Michael
Hafer Robert A.
Intermedics Orthopedics, Inc.
Merkling John R.
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