NAVIGATION AND POSITIONING INSTRUMENTS FOR JOINT REPAIR

• US 20140114369A1
• Filed: 12/30/2013
• Published: 04/24/2014
• Est. Priority Date: 11/20/2009
• Status: Active Grant

• Current Assignee: Zimmer Knee Creations, Inc. (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Zimmer Knee Creations, Inc. (Zimmer Biomet Holdings, Inc.)
• Inventors: Hanson, Shaun B., Mandeen, Christopher D., Nichols, David L., Russell, Thomas A.
• Granted Patent: US 9,033,987 B2
• Time in Patent Office: Days
• US Class Current: 606/86.R
• CPC Class Codes: A61B 17/1635 for grafts, harvesting or transplants
• CPC Class Codes: A61B 17/17 Guides or aligning means for drills , mills, pins or wires
• CPC Class Codes: A61B 17/1764 for the knee
• CPC Class Codes: A61B 17/8805 for introducing fluid filler into bone or extracting it A61B17/7097, A61B17/8833 take precedence
• CPC Class Codes: A61B 2090/101 for stereotaxic radiosurgery
• CPC Class Codes: A61B 2090/3937 Visible markers
• CPC Class Codes: A61B 2090/3966 Radiopaque markers visible in an X-ray image
• CPC Class Codes: A61B 90/10 for stereotaxic surgery, e.g. frame-based stereotaxis
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61F 2/46 Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor

Abstract

An instrument for controlled delivery of a device to a target area near a defect of a bone is provided. The instrument comprises a guide frame having a plurality of device portals, each portal defining a trajectory. The guide frame further includes visual markers for aligning the guide frame to an anatomical landmark on the bone to be treated. The instrument also includes a holder for releasable attachment with the guide frame. Each device portal is configured to provide accurate and controlled delivery of the device to the target area. In one example, the markers are radiopaque, and are visualized through fluoroscopy. A method of using the instrument is also provided.

Claims

1. A guidance instrument for controlled delivery of a device to a target area of a bone, comprising:

a guide frame having a rail arm and a plurality of device portals on the arm, each portal defining a trajectory and being configured to provide controlled delivery of the device to the target area, the instrument further including a visual marker that enables the guide frame to be aligned relative to an anatomical landmark on the bone to be treated by visualization of the marker; and

a holder attachable to the guide frame.