Patent ID: 8048134
Filing Date: 2011-11-01
Classification: A61B

Abstract:
1. A bone fixation device comprising: a first orthopedic structure configured to engage bone; a second orthopedic structure configured to engage bone; a spring disposed between the first and second orthopedic structures; and a first portion integral with the first orthopedic structure and a second portion integral with the second orthopedic structure; wherein the first and second orthopedic structures are aligned along a longitudinal axis and the first portion and the second portion are configured to have at least two rotational orientations relative to each other, wherein in a first rotational orientation, an end surface of an end structure of the first portion contacts an end surface of an end structure of the second portion to hold the first and second orthopedic structures apart against a first force of the spring, and wherein in a second rotational orientation, different from the first rotational orientation, the first and second portions are oriented such that the first and second orthopedic structures can move axially relative to each other in response to a second force of the spring less than or equal to the first force in order to urge the first and second orthopedic structures together.