Compression screw assembly

Details Compression screw assembly Compression screw assembly

1984-11-28

1986-10-21

Peshock, Robert

Surgery

Truss

Perineal

128 92YV, A61F 504

Patent

active

046179224

ABSTRACT:
A compression screw assembly for applying compression to a fractured bone includes a lag screw, a compression plate including a hollow barrel member adapted to receive the lag screw in at least one fixed orientation, a wrench assembly adapted to releasably engage the lag screw in axial alignment therewith, and apparatus having surface contours complimentary with the outer surface of the lag screw and inner surface of the barrel member for being optionally insertable into the barrel member to prevent axial rotation of the lag screw with respect to the barrel member.

REFERENCES:
patent: 2243717 (1941-05-01), Moreia
patent: 2267925 (1941-12-01), Johnston
patent: 2702543 (1955-02-01), Pugh et al.
patent: 3094120 (1963-06-01), Blosser
patent: 3103926 (1963-09-01), Cochran et al.
patent: 3374786 (1968-03-01), Callender, Jr.
patent: 3842825 (1974-10-01), Wagner
patent: 4095591 (1978-06-01), Graham, Jr. et al.
patent: 4432358 (1984-02-01), Fixed
patent: 4441492 (1984-04-01), Rydell et al.
patent: 4530355 (1985-07-01), Griggs
Richards, "Ambi Hip Screw", Brochure of the Instant Device, no date.
Richards Compression Hip Screw Tech. Info.", No. 3914, 1983.
"The Compression Hip Screw, The 25th Anniversary of Its Development", Trehame, Orthopaedic Review, vol. XI, No. 1, Jan. 1982.
BioMet Inc., OEC/Dual-OP System", no date.
"A Self-Adjusting Nail-Plate for Fractures About the Hip Joint", W. L. Rugh, Journal of Bone & Joint Surg., 1955.

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