SINGLE PLANE ANATOMIC REFERENCING TISSUE PREPARATION

• US 20080234683A1
• Filed: 03/16/2007
• Published: 09/25/2008
• Est. Priority Date: 03/16/2007
• Status: Active Grant

• Current Assignee: Zimmer Incorporated (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Zimmer Technology Incorporated (Zimmer Biomet Holdings, Inc.)
• Inventors: May, Justin J.
• Granted Patent: US 8,313,490 B2
• Time in Patent Office: Days
• US Class Current: 606/87
• CPC Class Codes: A61B 17/17 Guides or aligning means for drills , mills, pins or wires
• CPC Class Codes: A61B 2017/1602 Mills
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis

Abstract

A system for preparing a surface of an anatomical structure, such as a bone or cartilage, for example, to receive an orthopaedic implant. The system includes a surgical instrument for preparing the surface and a guide engageable with a follower of the surgical instrument. The guide includes a track or path configured to guide the follower and prepare a desired surface on the anatomical structure. The guide facilitates guidance of the surgical instrument in two dimensions.

Claims

1. A system for preparing a surface of an anatomical structure, comprising:

a surgical instrument, said surgical instrument including a follower; and

a guide connected to the anatomical structure and engageable with said follower, said guide comprising a track configured to guide said follower in two dimensions when said follower is engaged with said guide.

2. The system of claim 1, wherein said track comprises an undulating track.

3. The system of claim 1, wherein said surgical instrument includes a secondary guide.

4. The system of claim 3, wherein said secondary guide includes a distal end positioned a predetermined distance from a distal end of said instrument.

5. The system of claim 3, wherein said secondary guide is configured to be rotationally independent of said surgical instrument.

6. The system of claim 1, wherein said guide further comprises a substantially planar portion.

7. The system of claim 1, wherein said track substantially defines the surface of the anatomical structure.

8. The system of claim 1, wherein said surgical instrument comprises one of a milling instrument, a laser preparatory instrument, an ultrasonic preparatory instrument, an abrasive water jet instrument, a radiofrequency cautery instrument, an oscillating instrument, and a reciprocating instrument.

9. A system for preparing a surface of an anatomical structure, comprising:

a surgical instrument; and

guide means for guiding said surgical instrument in two dimensions.

10. The system of claim 9, further comprising secondary guide means for guiding said surgical instrument and for predetermining a depth of the surface of the anatomical structure.

11. A method for preparing a surface of an anatomical structure in two dimensions, comprising the steps of:

providing a guide having a track;

engaging a follower of a surgical instrument with the track; and

guiding preparation of the surface in two dimensions by moving the follower in the track.

12. The method of claim 11, further comprising the step of providing a secondary guide.

13. The method of claim 12, further comprising the step of adjusting the secondary guide relative to the surgical instrument to predefine a depth of the surface of the anatomical structure.