Bone align and joint preparation device and method
Inventors
DENHAM, Greg • Schlotterback, Ryan • Granger, Daren
Assignees
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Publication Number
US-12310572-B2
Publication Date
2025-05-27
Expiration Date
Abstract
A bone displacement system includes an anchoring portion, a tool engaging portion, a compression distraction mechanism, a lateral body and a distal body. The anchoring portion has an aperture for receiving a wire to connect the anchoring portion to a proximal bone. The tool engaging portion is connected to the anchoring portion and is configured to connect a tool thereto. The compression-distraction mechanism is connected to the anchoring portion. The lateral body is connected to the compression-distraction mechanism by a ratchet. The lateral body has a downwardly depending portion for contacting a lateral bone. The distal body is connected to the compression-distraction mechanism. The distal body has an aperture for receiving a wire to connect the distal body to a distal bone. The compression-distraction mechanism is configured to move the anchoring portion relative to the distal body.
Core Innovation
A bone displacement system includes an anchoring portion having an aperture for receiving a wire to connect the anchoring portion to a proximal bone, and a distal body having an aperture for receiving a wire to connect the distal body to a distal bone. A compression-distraction mechanism is connected to the anchoring portion and to the distal body, and is configured to move the proximal bone relative to the distal bone.
The distal body comprises a lateral portion and a mobile portion movably connected to the lateral portion. An actuator engaging the mobile portion causes movement of the mobile portion and the distal bone relative to the compression-distraction mechanism when a user actuates the actuator and the proximal and distal bones are connected.
In some configurations, the compression-distraction mechanism comprises a second mobile portion, a longitudinal portion and a second actuator that is engageable by a user to cause movement of the second mobile portion relative to the longitudinal portion to cause a compression or a distraction of the proximal bone relative to the distal bone. The system can configure axes such that a lateral portion axis and a compression-distraction mechanism longitudinal portion axis are about perpendicular to each other, and/or the distal body longitudinal axis and the compression-distraction mechanism longitudinal axis are approximately perpendicular to each other.
A tool engaging portion is connected to the anchoring portion and is configured to connect a tool thereto. The tool comprises a paddle, and the paddle is releasably connected to the tool engaging portion and receivable between the proximal bone and the distal bone for locating the anchoring portion relative to the proximal bone and the distal body relative to the distal bone. In addition, the tool comprises a cut guide that is releasably connected to the tool engaging portion and has a first cut slot and a second cut slot for cutting the proximal bone and/or the distal bone, where the first cut slot and the second cut slot can have longitudinal axes substantially parallel to each other.
Claims Coverage
The partial content includes five independent claims. The claims center on structural features of a bone displacement system and methods for using that system to adjust bone alignment and provide compression or distraction, including an actuator-driven mechanism, wire-based connections, and optional tool features such as a paddle and cut guide.
Wire-connected anchoring portion and distal body for compression-distraction
An anchoring portion having an aperture for receiving a wire to connect the anchoring portion to a proximal bone; a compression-distraction mechanism connected to the anchoring portion; and a distal body connected to the compression-distraction mechanism, the distal body having an aperture for receiving a wire to connect the distal body to a distal bone, with the compression-distraction mechanism configured to move the distal body relative to the anchoring portion.
Actuator engaging a mobile portion to move the distal bone relative to the compression-distraction mechanism
The distal body comprising a lateral portion and a mobile portion movably connected to the lateral portion, where an actuator engaging the mobile portion causes movement of the mobile portion and the distal bone relative to the compression-distraction mechanism when a user actuates the actuator and the distal body is connected to the distal bone and the anchoring portion is connected to the proximal bone.
Second mobile portion and second actuator for compression or distraction
The compression-distraction mechanism comprising a second mobile portion, a longitudinal portion and a second actuator engageable by a user to cause movement of the second mobile portion relative to the longitudinal portion to cause a compression or a distraction of the proximal bone relative to the distal bone.
Axis-alignment control via perpendicular relationships
A lateral portion axis and a compression-distraction mechanism longitudinal portion axis about perpendicular to each other, and/or a distal body longitudinal axis and the compression-distraction mechanism longitudinal axis being approximately perpendicular to each other.
Paddle for locating the anchoring portion and distal body between bones
A tool engaging portion connected to the anchoring portion, configured to connect a tool wherein the tool comprises a paddle, the paddle releasably connected to the tool engaging portion and receivable between the proximal bone and the distal bone for locating the anchoring portion relative to the proximal bone and the distal body relative to the distal bone.
Releasably connected cut guide with first and second cut slots
A tool comprising a cut guide releasably connected to the tool engaging portion and having a first cut slot and a second cut slot for cutting the proximal bone and/or the distal bone, including configurations where the first cut slot and the second cut slot have longitudinal axes substantially parallel.
Method inserting wires and moving distal body to adjust axes alignment
Inserting a first wire through an anchoring portion into a first bone; inserting a second wire through a distal body into a second bone distal to the first bone; and moving the distal body and the second bone relative to a compression-distraction mechanism and the anchoring portion to adjust an alignment of axes of the first bone and the second bone relative to each other.
Method moving mobile portion along lateral portion to rotate the second bone
Moving the mobile portion along a lateral portion of the distal body toward the compression-distraction mechanism to rotate the second bone about an axis of the second bone.
Method actuating compression-distraction actuator to move distal body and second bone proximally
Moving the distal body and the second bone relative to the anchoring portion and the first bone by actuating an actuator of a compression-distraction mechanism to cause the distal body and the second bone to move proximally toward the anchoring portion.
Method releasably connecting bone cut guide and cutting first and second bones
Releasably connecting a bone cut guide to the bone displacement mechanism and cutting the first bone through a slot of the bone cut guide and cutting the second bone through a second slot of the bone cut guide.
Across the independent claims, the coverage centers on wire-receiving apertures connecting an anchoring portion to a proximal bone and a distal body to a distal bone, an actuator-driven compression-distraction mechanism that moves proximal and distal bones relative to each other, and optional tool features including a paddle receivable between bones and a releasably connected cut guide with first and second cut slots for cutting proximal and/or distal bone components.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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