Expandable intramedullary systems and methods of using the same
AssigneeGlobus Medical, Inc.
InventorDavid Jansen
Life of this patent
Estimating the term…
Abstract
Intramedullary systems, expandable intramedullary nails, expandable anchors, and methods of using the same. The intramedullary system may include an expandable intramedullary nail configured to extend into an intramedullary canal of a long bone and/or one or more expandable anchors configured to extend at an angle transverse to the intramedullary nail. The intramedullary nails and/or anchors may include one or more integrated expansion mechanisms that allow for insertion in a contracted configuration and expansion into a deployed configuration to lock the relative position and prevent axial rotation and translation of the system.
Claims20
An expandable anchor for stabilizing a long bone comprising:
- an elongate anchor body having a longitudinal axis and a proximal portion and a distal portion, the anchor body configured to extend substantially transverse to an intramedullary canal of a long bone;
- an actuation mechanism extending longitudinally through the anchor body;
- and
- at least one expandable securing member engaged with the actuation mechanism and disposed in the distal portion of the anchor body in a contracted position, wherein, upon mechanical actuation of the at least one securing member, the at least one securing member linearly and non-pivotably extends in a direction perpendicular to the longitudinal axis from the anchor body to an expanded position to securely anchor the distal portion of anchor,
- wherein the expandable securing mechanism is engaged with the actuation mechanism in the contracted position and the expanded position.
An expandable anchor for stabilizing a long bone comprising:
- a cannulated elongate anchor body having a proximal portion and a distal portion;
- an elongate actuation mechanism extending longitudinally through the anchor body, and configured to move longitudinally through the anchor body;
- one or more expandable securing members engaged with the actuation mechanism and disposed in the anchor body in a contracted position, wherein, upon linear translation of the actuation mechanism toward the distal portion of the anchor body, the one or more securing members linearly and non-pivotably extend from the anchor body to an expanded position to securely anchor the distal portion of anchor body,
- wherein the extendable securing members are engaged with the actuation mechanism in the contracted position and the expanded position.
An expandable anchor for stabilizing a long bone comprising:
- a cannulated elongate anchor body having a proximal portion and a distal portion configured to be positioned through an opening in an intramedullary nail and transverse to the intramedullary nail;
- an actuation mechanism including a deployment member connected to an adjustment member extending longitudinally through the anchor body;
- and
- at least one expandable securing member engaged with the deployment member and configured to non-pivotably deploy the at least one securing member from the anchor body along a linear trajectory upon linear movement of the adjustment member toward the distal portion of the anchor body,
- wherein the expandable securing member is engaged with the actuation mechanism in the contracted position and the expanded position.
Dependencies are inferred from the claim text.