Bone screw and method

Details Bone screw and method Bone screw and method

1986-05-19

1988-02-09

Rosenbaum, C. Fred

Surgery

Truss

Perineal

128 92YE, 128 92YZ, A61F 504

Patent

active

047235411

ABSTRACT:
A bone screw for use in joining the fractured sections of the phalanx and a method for its use are disclosed. The bone screw includes a smooth cylindrical central shaft with coarse threads at each end of the shaft. The threads can be a greater diameter than the diameter of the shaft with the threads at each end have substantially the same pitch. The threads at the two ends of the central shaft are of opposite hand; that is, the threads at one end are right handed while those at the opposite end are left handed. In one embodiment, one end of the bone screw is provided with a screw slot which will accept a screwdriving tool for inserting the screw.

REFERENCES:
patent: 3499222 (1970-03-01), Linkow et al.
patent: 3809075 (1974-05-01), Matles
patent: 4016874 (1977-04-01), Maffei et al.
patent: 4059102 (1977-11-01), Devas
patent: 4175555 (1979-11-01), Herbert
patent: 4456005 (1984-06-01), Lichty
patent: 4463753 (1984-08-01), Gustilo
patent: 4640271 (1987-02-01), Lower

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