Tool for bone fixation device
First Claim
1. A method of fixing a first piece of bone to a second piece of bone comprising the steps of:
- providing a pin having at least one laterally moveable distal anchor and a lumen extending therethrough;
advancing the distal anchor through the first piece of bone and into the second piece of bone while the distal anchor is permitted to move laterally inwardly as needed;
gripping with a deployment tool a proximal portion of a wire that extends axially through the lumen; and
proximally retracting with the deployment tool the wire axially through the lumen such that a distal portion of the wire resists radial inward deflection of the distal anchor, thereby locking the distal anchor with respect to lateral inward movement;
wherein the step of proximally retracting with the deployment tool the wire axially through the lumen comprises moving an outer body of the deployment tool with respect to a central body of the deployment, tool; and
wherein the step of moving the outer body of the deployment tool with respect to the central body of the deployment tool comprises one way ratchet-type motion.
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Accused Products
Abstract
A tool for inserting a bone fixation device is provided. The tool generally includes an elongate outer body and an elongate inner body, each having a proximal end, a distal end, and a longitudinal axis. The tool typically includes a pin-receiving portion at the distal end of the outer body for receiving a proximal pin of a bone fixation device. The tool may further include first and second levers pivotally mounted to the inner member at respective pivot axes, and each of the levers having a gripping portion. The levers preferably include finger engagement portions, wire-gripping portions, and are preferably configured to be axially movable relative to the outer body. The levers are generally configured such that a proximal force on the finger engagement portions relative to the outer body will cause the pin engagement portions to close and to move proximally such that a guidewire of a bone fixation device placed between the wire-gripping portions may be gripped and pulled proximally.
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Citations
19 Claims
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1. A method of fixing a first piece of bone to a second piece of bone comprising the steps of:
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providing a pin having at least one laterally moveable distal anchor and a lumen extending therethrough; advancing the distal anchor through the first piece of bone and into the second piece of bone while the distal anchor is permitted to move laterally inwardly as needed; gripping with a deployment tool a proximal portion of a wire that extends axially through the lumen; and proximally retracting with the deployment tool the wire axially through the lumen such that a distal portion of the wire resists radial inward deflection of the distal anchor, thereby locking the distal anchor with respect to lateral inward movement; wherein the step of proximally retracting with the deployment tool the wire axially through the lumen comprises moving an outer body of the deployment tool with respect to a central body of the deployment, tool; and wherein the step of moving the outer body of the deployment tool with respect to the central body of the deployment tool comprises one way ratchet-type motion. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of fixing a first piece of bone to a second piece of bone comprising the steps of:
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providing a pin having at least one laterally moveable distal anchor and a lumen extending therethrough; advancing the distal anchor through the first piece of bone and into the second piece of bone while the distal anchor is permitted to move laterally inwardly as needed; gripping with a deployment tool a proximal portion of a wire that extends axially through the lumen; and moving with the deployment tool the wire axially through the lumen such that a distal portion of the wire resists radial inward deflection of the distal anchor, thereby locking the distal anchor with respect to lateral inward movement; wherein the step of moving with the deployment tool the wire axially through the lumen comprises moving an outer body of the deployment tool with respect to a central body of the deployment, tool; and wherein the step of gripping with a deployment tool a proximal portion of a wire comprises moving ends of a pair of lever arms toward each other. - View Dependent Claims (8, 9, 10, 11)
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12. A method of fixing a first piece of bone to a second piece of bone comprising the steps of:
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providing a pin having at least one laterally moveable distal anchor and a lumen extending therethrough; advancing the distal anchor through the first piece of bone and into the second piece of bone while the distal anchor is permitted to move laterally inwardly as needed; gripping with a deployment tool a proximal portion of a wire that extends axially through the lumen; and moving with the deployment tool the wire axially through the lumen such that a distal portion of the wire resists radial inward deflection of the distal anchor, thereby locking the distal anchor with respect to lateral inward movement; wherein the step of gripping with a deployment tool a proximal portion of a wire comprises moving ends of a pair of lever arms toward each other. - View Dependent Claims (13, 14, 15, 16)
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17. A method of fixing a first piece of bone to a second piece of bone comprising the steps of:
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providing a pin having at least one laterally moveable distal anchor and a lumen extending therethrough; advancing the distal anchor through the first piece of bone and into the second piece of bone while the distal anchor is permitted to move laterally inwardly as needed; gripping a proximal portion of a wire that extends axially through the lumen; and proximally retracting the wire axially through the lumen using a deployment tool such that a distal portion of the wire resists radial inward deflection of the distal anchor, wherein proximally retracting the wire includes moving an outer body of the deployment tool with respect to a central body of the deployment tool, thereby locking the distal anchor with respect to lateral inward movement. - View Dependent Claims (18, 19)
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Specification