Nail for fixing a fracture of the femur

Details Nail for fixing a fracture of the femur Nail for fixing a fracture of the femur

1982-06-18

1985-03-26

Apley, Richard J.

Surgery

Truss

Perineal

128 92BA, 128 92E, 3 19, A61F 100, A61F 504

Patent

active

045066620

ABSTRACT:
An elastic nail for fixing a bone fracture of the femur including an elongated cylindrical nail jacket having a distal end, a proximal end and an outer surface. The nail jacket is curved along its length between the distal and proximal ends and has a circular cross section between its ends with a region adjacent its distal end having a cross section which differs from the circular. The elasticity and curvature of the nail are such that when the nail is driven into the marrow cavity of the femur its distal end is supported by the cortical part of the bone. The region deviating from the circular cross section has a concave face and a convex face which are curved predominantly about axes extending parallel to the lengthwise direction of the nail jacket. The concave face forms a recess in the nail jacket, which recess is disposed at the inside of the curvature which relates to the entire length of the nail jacket. The convex face extends only slightly beyond the circular cross section transverse to the longitudinal direction of the nail jacket to form edge regions. Each edge region has a continuously curved surface joining the convex face to the concave face.

REFERENCES:
patent: 4055172 (1977-10-01), Ender et al.

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