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US 9,314,232 B2Granted
Tools for performing less invasive orthopedic joint procedures
AssigneeIlion Medical, Inc.
InventorJohn G. Stark
Life of this patent
Estimating the term…
Abstract
A tool set for preparing a joint, inserting an implant or removing an implant from a joint in an open or less invasive procedure generally comprises a set of nested tools, pin guides, jigs, and/or immobilization elements. The nested tool set comprises at least one pin and at least one cannulated tool. The cannula can comprise tangs that project from the distal end of the cannula. The tangs can be offset such that drilling removes different amounts of bone relative to drilling through a centered drill guide. The cannulated tool kit can comprise at least one tool guide/cannula, drill bits/reamer, syringe, and/or inserter. At least one cannula is positioned over and around the pin position into the joint. The channel of the cannula guides the other tools into the joint.
Claims20
A set of tools for an orthopedic procedure comprising:
- a first pin;
- a first cannula comprising a first end, a second end having a circumference, a substantially cylindrical drill channel extending along a length of the first cannula between the first end and the second end and forming a first opening at the first end and a second opening at the second end, and projections extending substantially similar distances from an edge of the first cannula at the second end and positioned along the circumference of the second opening wherein each of the projections have a first edge and a second edge that have a projected width between the first and second edges and are aligned for the respective first edges to engage one side of a joint and the second edges aligned to engage an opposite side of the joint when the projections are inserted into the joint with a body portion of the first cannula remains extending outward from the joint and wherein the projections are asymmetrically distributed around the drill channel of the first cannula;
- a first sizer comprising:
- a shaft having a shaft bore that has a size to receive the first pin and an outer surface that fits within the drill channel of the first cannula, and
- a tapered tip secured to the shaft of the first sizer, the tapered tip having an outer surface that fits within the drill channel of the first cannula and having a tip bore that has a size to receive the first pin and aligned with the shaft bore of the first sizer;
- and
- a drill bit comprising a shaft having a conduit for receiving the first pin, a tip with cutting flutes and an outer surface that fits within the drill channel of the first cannula.
4 more elements
A set of tools for an orthopedic procedure comprising:
- a first pin;
- a first cannula comprising a first end, a second end having a circumference, a substantially cylindrical drill channel extending along a length of the first cannula between the first end and the second end and forming a first opening at the first end and a second opening at the second end, and projections extending substantially similar distances from an edge of the first cannula at the second end and positioned along the circumference of the second opening;
- a first sizer comprising:
- a shaft having a shaft bore that has a size to receive the first pin and an outer surface that fits within the drill channel of the first cannula, and
- a tapered tip secured to the shaft of the first sizer, the tapered tip having an outer surface that fits within the drill channel of the first cannula and having a tip bore that has a size to receive the first pin and aligned with the shaft bore of the first sizer;
- a drill bit comprising a shaft having a conduit for receiving the first pin, a tip with cutting flutes and an outer surface that fits within the drill channel of the first cannula;
- one or more additional cannula having a selected set of sizes different from the first cannula, each cannula comprising a first end, a second end, a substantially cylindrical drill channel extending along a length of the cannula between the first end and the second end and the second end and forming a first opening at the first end and a second opening at the second end wherein the different sized one or more additional cannula have corresponding different drill channel diameters from each other, and projections extending from an edge of the one or more additional cannula at the second end, each projection comprising a first edge and an opposite second edge and positioned along the circumference of the second opening to support a first side of a joint on the first edges and an opposite side of the joint on the second edges when the projections are inserted into the joint;
- and
- one or more additional sizers, each of the one or more additional sizer comprising a shaft having a shaft bore that has a size to receive the first pin, and an outer surface that fits within the drill channel of a corresponding cannula, and
- a tapered tip secured to the shaft of the one or more additional sizer, the tapered tip having an outer surface that fits within the drill channel of the corresponding cannula and having a tip bore that has a size to receive the first pin and aligned with the shaft bore of the one or more additional sizer.
7 more elements
Dependencies are inferred from the claim text.