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Obesity Surgery

Tools-for-use-in-seating-spinal-rods-in-open-ended-implants

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Tools for use in seating spinal rods in open ended implants

Details

Inventors: Jackson, Roger P.;
Assignee:
Primary Examiner: Buiz; Michael
Assistant Examiner: Reip; David O.
Attorney, Agent or Firm: Litman, McMahon & Brown, L.L.C.

A set of tools for use in seating a spinal rod in a rod receiving channel in a head of an open ended spinal surgery implant such as a bone screw, hook or transverse connector wherein each of the tools comprises an implant holder for grasping, holding or engaging an implant, and a pusher assembly including a pusher bar advanceable relative to the implant holder to drive, push or force a spinal rod into the rod receiving channel of an implant held by the implant holder. The implant holders are of various configurations to facilitate holding or grasping of different types of implants or to accommodate different situations relating to the location of the implant. The pusher assembly is adapted for interchangeable use with each of the various implant holders. The pusher assembly is threadingly secureable to each of the implant holders and includes a pusher bar having an elongate slot extending therethrough. The slot in the pusher bar and a channel or slot in the implant holder provides access to the head of the open ended implant in which the spinal rod is seated to permit the installation of a cap thereon.

DETAILED DESCRIPTION The present invention comprises a set of tools for use in seating a spinal rod in a rod receiving channel in a head of an open ended spinal surgery implant such as a bone screw, hook or transverse connector.
The set of tools according to the invention allows a surgeon to push or translate a rod toward and into the open heads of spinal implants and/or to pull or translate one or more bones with the implants thereon toward the rod so as to receive the rod in open heads of the implants.
The tools are designed to permit installation of an implant cap on the head of an open ended spinal surgery implant while maintaining the spinal rod in a seated alignment therewith.
Each of the tools comprises an implant holder for grasping, holding or engaging an implant, and a pusher assembly including a pusher bar advanceable relative to the implant holder to drive, push or force a spinal rod into the rod receiving channel of an implant held by the implant holder or to draw the implant toward the rod such that the rod is received by the implant.
The implant holders are of various configurations to facilitate holding or grasping of different types of implants or to accommodate different situations relating to the location of the implant.
The pusher assembly is adapted for interchangeable use with each of the various implant holders.
Each of the implant holders includes a handle portion and an implant engaging portion.
The implant engaging portion includes opposed engaging members for securing one of the implants therebetween.
In one of the preferred embodiments, the implant holder is of unitary construction and the relative position of the engaging members is fixed.
In other preferred embodiments, the implant holder is formed from two arms, each comprising a handle portion and an implant engaging portion or implant engaging member, secured together in a scissor like fashion such that the implant engaging members may be advanced between open and closed positions relative to one another

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