Surgery – Truss – Perineal
Patent
1978-05-15
1979-10-30
Frinks, Ronald L.
Surgery
Truss
Perineal
128 92D, A61F 504, A61B 1718
Patent
active
041724526
ABSTRACT:
A hip fracture nail device includes a telescopic nail for fixing the broken hip joint portions of the femur together and a retaining plate to which the nail is angularly secured in longitudinal sliding relationship at an angle of approximately 150.degree. by a slanted bushing. The retaining plate has strong triangular prongs which engage within corresponding grooves in the sides of the bushing, which facilitate retention, removal, and sliding adjustment between them. The retaining plate is affixed to the shaft of the femur by a row of bone screws. The nail is manipulated by a tool connected to the inner end of the nail inserted through an aperture in the retaining plate. The nail is maintained at an adjusted distance from the bushing and plate by frictional engagement of a C-shaped retaining spring disposed between the outer wall of the nail and the inner wall of the bushing. Insertion and assembly of the C-shaped spring is accomplished through a pair of longitudinal slots in the outer wall of the nail disposed 180.degree. relative to each other and a pin in the outer end of the bushing which passes between the free ends of the C-shaped spring.
REFERENCES:
patent: 1105105 (1914-07-01), Sherman
patent: 2937642 (1960-05-01), Lange et al.
patent: 3107666 (1963-10-01), Cecere et al.
patent: 3561437 (1971-02-01), Orlich
patent: 4009712 (1977-03-01), Burstein et al.
Forte Mark R.
Helder Theodore J.
Frinks Ronald L.
Howmedica Inc.
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