Orthopedic device
View Patent ↗An orthopedic device for fixating bone parts includes a set of one or more bone fixation pins for engaging a bone piece, an elongated fixator body having an internally threaded bore extending longitudinally therethrough, a pair of opposed longitudinally extending slots in the fixator body, and a pin-holder received within the fixator body and configured to removably hold the set of one or more bone fixation pins. The pin-holder is longitudinally movable within the fixator body for controlling the position of the set of bone fixation pins within the fixator body. The fixator body also can be configured to removably hold a second set of one or more bone fixation pins at a location fixed along the fixator body.
1. An orthopedic device comprising:
a first set of one or more bone fixation pins suitable for engaging a bone piece;
a fixator body having a first part and a second part, each of the first and second parts having an internally threaded bore extending longitudinally therethrough;
a universal joint connecting the first part and the second part, wherein the universal joint comprising a double-axle member providing two axes of rotation for the universal joint; and
a cannulated hinge-locking pin extending completely through the double-axle along one of the two axes of rotation, the cannulated hinge-locking pin providing a cannula for receiving a K-wire;
a pair of opposed longitudinally extending slots provided in the first part of the fixator body;
a pin-holder received within the first part of the fixator body and threadably engaging the internally threaded bore of the first part of the fixator body, the pin-holder configured to removably hold the first set of one or more bone fixation pins, said fixation pins extending through said pair of slots opposed from one another via said pin-holder, wherein said pin-holder is longitudinally movable within the first part of the fixator body, whereby the position of the first set of one or more bone fixation pins along the fixator body's longitudinal axis is controlled;
at least a pair of opposed pin holes provided in the second part of the fixator body for receiving a second set of one or more bone fixation pins through the second part of the fixator body; and
a set screw received in the second part of the fixator body and threadably engaging the internally threaded bore of the second part of the fixator body for locking the second set of one or more bone fixation pins.
2. The device of claim 1 , wherein the pin-holder further comprises a driving screw rotatably attached to the pin-holder and threadably engaging the threaded bore of the fixator body for moving the pin-holder longitudinally within the fixator body.