Anchors and tensioner and anchor loading systems for active bone and joint stabilization devices
Inventors
Stecco, Kathryn A. • Castro, Carlos • Powelson, Stephen • GRINSTEAD, Forrest • Campbell, Damon Covell
Assignees
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Publication Number
US-11813010-B2
Publication Date
2023-11-14
Expiration Date
Abstract
Implant tensioning and/or implant anchor deployment devices are described. Certain embodiments may be recognized in the form of a so-called tensioning “gun.” Other embodiments take a simpler and more compact form. Various optional features are described in connection with these embodiments. Optional aspects of anchor embodiments for the subject implants are also described. Some of these features are coordinated for use with the implant tensioning and anchor deployment instrument, others are not.
Core Innovation
A medical instrument system includes a housing body with a hand grip section and a barrel section, and a movable trigger section received by the housing body. A socket at a distal end of the barrel section holds an anchoring head configured to receive an elongate spring member, and at least one gripper located within the barrel section grasps the elongate spring member and holds it upon trigger section compression.
The system tensions the elongate spring member by pulling the at least one gripper proximally in response to trigger section compression and holds the tension until release. The anchoring head has a sliding tooth, and the system further includes a button along the barrel section for pushing the sliding tooth through an opening in the elongate spring member.
The disclosed operation includes engaging the implant between adjacent cells with the at least one gripper upon actuating a tensioning trigger, with the elongate spring member comprising a plurality of cells, each cell having an aperture. The tensioning trigger is actuated until a desired tension reading is displayed by a meter included in the medical instrument, and tension can be released and reapplied until a second desired tension reading is displayed.
Claims Coverage
The document includes two independent claims, a system claim and a method claim, that cover trigger-driven gripper tensioning, an anchoring head with a button-actuated sliding tooth, and a method of implanting that achieves a desired tension reading displayed by a meter.
Trigger section gripper-based proximal tensioning with hold until release
Pulling the at least one gripper proximally in response to trigger section compression to tension the elongate spring member and hold the tension until release.
Sliding tooth anchoring head pushed by a button through an opening
An anchoring head having a sliding tooth, and a button along the barrel section for pushing the sliding tooth through an opening in the elongate spring member.
Cell-based implant tensioning with gripper engagement between adjacent cells
Engaging the implant between adjacent cells with at least one gripper upon actuating a tensioning trigger, where the elongate spring member comprises a plurality of cells each cell having an aperture.
Meter-guided tension control by actuating the tensioning trigger
Actuating the tensioning trigger until a desired tension reading is displayed by a meter included in the medical instrument.
Overall claim coverage ties together trigger section compression-driven tensioning using at least one gripper with tension held until release, a button-actuated sliding tooth in the anchoring head pushed through an opening in the elongate spring member, and a method that tensions a cell/aperture-based implant while reading a desired tension value on an included meter.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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