Surgery – Truss – Perineal
Patent
1988-07-29
1989-09-26
Hafer, Robert A.
Surgery
Truss
Perineal
128 92YE, 411474, 411476, 411482, A61F 504, F16B 1500, F16B 1502
Patent
active
048692425
ABSTRACT:
A bone fixation pin includes an elongated pointed shank having an enlarged head at one end thereof. A second shank projects axially from the other end of the head and is joined to a second head which, in turn, is integral with a third shank. An enlarged and relatively long head on the end of the third shank may be gripped by the rotary chuck of a tool for driving the pin. After the pin has been driven into the bone of a digit, the exposed end portion of the pin is detached from the pin by snapping the pin either at the relatively weak second shank or at the relatively weak third shank. A flexible tie for pulling two parallel pins toward one another and placing an osteotomy site in compression may be looped around each pin and captivated axially by the first and second heads.
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patent: 4138921 (1979-02-01), McGauran
Brown Michael
Hafer Robert A.
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