Patent ID: 9463047
Filing Date: 2016-10-11
CPC Classification: A61B

Claim Text:
1. A bone fixation system, comprising: an outer receiver including a sidewall that defines an inner bore and an open proximal end; the sidewall has an inner surface and an outer surface that defines at least one channel opening to the inner bore and the open proximal end; the outer receiver includes an interlocking inner surface formed on the inner surface; an inner receiver including a sidewall that defines an interior, an open proximal end, and an inner base at a distal end; the sidewall has an inner surface and an outer surface that defines at least one channel opening to the interior and the open proximal end; the inner receiver includes an interlocking inner surface formed on the inner surface and an interlocking outer surface formed on the outer surface; the inner receiver being located inside the outer receiver such that the at least one channel of the inner receiver is substantially aligned with the at least one channel of the outer receiver; the inner receiver being translatable along a longitudinal axis relative to the outer receiver in an unlocked position; a rod disposed inside the at least one channel of the inner receiver; and a first locking cap having an interlocking outer surface; the first locking cap being located in the inner receiver such that the interlocking outer surface of the first locking cap is interlocked with the interlocking inner surface of the inner receiver in a first locked position; wherein the rod is located between the inner base and the first locking cap and the inner receiver is free to translate longitudinally in the first locked position wherein the system includes a second locked position in which the inner receiver is rotated relative to the outer receiver to interlock the interlocking outer surface of the inner receiver with the interlocking inner surface of the outer receiver to fix the longitudinal translation of the inner receiver relative to the outer receiver.