Bone nail and an instrument for implanting a bone nail

Details Bone nail and an instrument for implanting a bone nail Bone nail and an instrument for implanting a bone nail

1987-04-08

1988-10-11

Pellegrino, Stephen C.

Surgery

Truss

Perineal

128 92Y, A61F 504

Patent

active

047763280

ABSTRACT:
The bone nail is provided with a tapered portion having a barbed denticulation and a conical head which has a conical shaped depression at the proximal end for receiving a centering cone of the setting and driving instrument. The instrument carries a movable sleeve at the distal end for engaging and holding the bone nail in alignment with the centering cone during implantation. The sleeve is movable relative to the distal end of the instrument so as to disengage from the conical head of the bone nail to permit removal of the instrument and subsequent replenishment of the instrument with a fresh bone nail. The sleeve includes an expandable distal section for engaging the conical head of the bone nail and a proximal expandable section for engaging about a conical surface of the instrument.

REFERENCES:
patent: 2182 (1841-07-01), Ballard
patent: 230585 (1880-07-01), Soule
patent: 257351 (1882-05-01), Lubin
patent: 373291 (1887-11-01), Higgs
patent: 405972 (1889-06-01), Taylor
patent: 797494 (1905-08-01), Chase
patent: 2172553 (1939-09-01), Tripp
patent: 4402641 (1983-09-01), Arff
patent: 4423721 (1984-01-01), Otte et al.
patent: 4462395 (1984-07-01), Johnson

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