Surgery – Instruments – Orthopedic instrumentation
Patent
1988-04-22
1990-02-20
Hafer, Robert A.
Surgery
Instruments
Orthopedic instrumentation
227147, A61F 504, B25C 700
Patent
active
049017128
ABSTRACT:
A bone nailer adapted for use with an elongate nail or screw like insert that has a head portion, and a smaller diameter embedable portion projecting from the head portion. The nailer includes a housing having an inner surface defining a through passageway with a portion of the inner surface adjacent an outlet opening of the passageway being adapted to receive the insert with its head portion farthest from the outlet opening and to guide the head portion during movement of the insert through the outlet opening. A driver having an end adapted to engage the head portion is mounted on the housing for sliding movement from a load position with the driver spaced from the outlet opening to afford positioning the insert in the passageway, along the passageway so that the end of the driver can push the insert toward the outlet opening, to an eject position at which the driver has pushed the insert out the outlet opening so that drive assembly adapted to be manually activated can rapidly propel the driver along the passageway from its load to its eject position to rapidly move the insert through the outlet opening and embed its embedable portion in adjacent bone.
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Assell Robert L.
Voegell Douglas W.
Bauer Stephen W.
Brown Michael
Hafer Robert A.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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