Multi-use femoral intramedullary nail
OwnerRandall E. Marcusinventor
Life of this patent
Estimating the term…
Abstract
An intramedullary nail for use in fractures of the left or right femur includes a body having a head, an intermediate portion and a distal tip. Transverse openings are provided in the body near the distal tip and in the head for receiving locking screws. One opening in the head has its axis within the femoral neck and another opening has its axis generally transverse thereto. The nail head has a seat with a transverse locating slot for securing a screw insertion tool in a fixed angular position in which a screw guide on the tool is aligned with one of the screw receiving openings.
Claims14
An intramedullary nail for use in fractures of the femur comprising, an elongated unitary body having a head, an intermediate body portion, and a distal tip, said body having an axial opening therein extending through said head and into said intermediate body portion, said nail being insertable into the medullary canal of a femur to a position in which said distal tip is in the distal femur region and said head is in the intertrochanteric femur region, a first transverse screw receiving opening in said body near said distal tip, a second screw receiving opening in said head having its axis within the femoral neck, and a third screw receiving opening in said head having an axis generally transverse to the axis of the femoral neck and crossing the axis of the second opening, means for securing an inserting tool to said head for inserting the nail in a femur, and means on said head defining a line having a predetermined fixed angular relation to the axis of each of said screw receiving openings for accurately locating a guide of a tool circumferentially and axially of the nail in precise axial alignment with any of said openings.
Dependencies are inferred from the claim text.