Locking system for femoral neck fracture fixation

A fixation device for stabilizing fractured bone portions comprising:

• a housing having a proximal end, a distal end opposite the proximal end and a bore extending between the proximal and distal ends, the housing defining a longitudinal axis;
• an actuator being at least partially disposed within the bore of the housing and moveable distally through the bore, the actuator having an expandable portion;
• a first anchoring member coupled to the actuator and configured to transition between a first condition in which a portion of the first anchoring member has a first distance from the longitudinal axis and a second condition in which the portion of the first anchoring member has a second distance from the longitudinal axis, the second distance being greater than the first distance;
• and
• a wedge configured to be inserted axially into the housing to expand the expandable portion,
• wherein the expandable portion is configured to prevent the actuator from backing out of the housing upon expansion and the housing includes a ledge extending radially inward from an inner surface of the housing configured to engage the expandable portion to prevent proximal movement of the actuator, the ledge defining a gap therebetween spanning a first distance, wherein an outer diameter of the expandable portion in an expanded condition defines a second distance greater than the first distance.

A fixation device for stabilizing fractured bone portions comprising:

• a housing having a proximal end, a distal end opposite the proximal end and a bore extending between the proximal and distal ends, the housing defining a longitudinal axis;
• an actuator being at least partially disposed within the bore of the housing and moveable distally through the bore, the actuator having an expandable portion;
• a first anchoring member coupled to the actuator and configured to transition between a first condition in which a portion of the first anchoring member has a first distance from the longitudinal axis and a second condition in which the portion of the first anchoring member has a second distance from the longitudinal axis, the second distance being greater than the first distance;
• and
• a second anchoring member coupled to the actuator and configured to transition between a first condition in which a portion of the second anchoring member has a first distance from the longitudinal axis and a second condition in which the portion of the second anchoring member has a second distance from the longitudinal axis, the second distance being greater than the first distance, the fixation device further comprising a wedge adapted to transition the first anchoring member from the first condition to the second condition and the second anchoring member from the first condition to the second condition,
• wherein the expandable portion is configured to prevent the actuator from backing out of the housing upon expansion.