Patent ID: 8956356
Filing Date: 2015-02-17
Classification: A61B

Abstract:
1. A bone fixation device, comprising: a first element extending along a first longitudinal axis from a proximal end to a distal end, the first element including a first channel extending therethrough along the first longitudinal axis; and a second element extending along a second longitudinal axis from a proximal end to a distal end, the second element including a proximal portion sized and shaped to be received within the first channel such that the first and second longitudinal axes are substantially coaxial and a distal portion including a bone engaging structure, a proximal end of the second element slidably locked within the first channel such that the first and second elements are longitudinally movable relative to one another between a permitted range of motion; a distal opening of the first channel is movable between a non-expanded configuration and an expanded configuration, a diameter of the distal opening, when in the non-expanded configuration being smaller than an inner diameter of a portion of a the first channel proximal thereto, the first element being biased toward the non-expanded configuration; and the proximal portion of the second element including an enlarged portion sized and shaped to be slidably received within the portion of the first channel proximal to the distal opening, an outer diameter of the enlarged portion being greater than the diameter of the distal opening in the non-expanded configuration and less than the diameter of the distal opening in the non-expanded configuration, the second element further including a central portion extending distally from the enlarged portion and having an outer diameter less than the diameter of the distal opening; and the distal opening is movable between the non-expanded and expanded configurations via a slot extending proximally from the distal end, the slot extending along a curve defining first and second interlocking parts shaped to engage one another to limit expansion of the distal opening to a desired extent.