Bone instruments and methods

• US 6,676,662 B1
• Filed: 10/19/2000
• Issued: 01/13/2004
• Est. Priority Date: 10/20/1999
• Status: Expired due to Fees

• Current Assignee: Zimmer Spine, Inc. (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Sulzer Spine Tech, Inc.
• Inventors: Bagga, Charanpreet S., Hanson, David A., Brady, Dale L.
• Primary Examiner(s): Shaver, Kevin
• Assistant Examiner(s): BUMGARNER, MELBA N
• Application Number:
  US09/692,512
• Time in Patent Office: 1,181 Days
• Field of Search: 606/87, 606/88, 606/89, 606/86, 606/96, 606/102, 606/54, 606/79
• US Class Current: 606/87
• CPC Class Codes: A61B 17/15 Guides therefor arrangements for guiding straight saw blades in general B23D51/025
• CPC Class Codes: A61F 2/4644 Preparation of bone graft, bone plugs or bone dowels, e.g. grinding or milling bone material bone material A61F2/28; disintegrating or milling devices B02C
• CPC Class Codes: A61F 2002/2839 Bone plugs or bone graft dowels
• CPC Class Codes: A61F 2002/30617 Visible markings for adjusting, locating or measuring
• CPC Class Codes: A61F 2002/30948 using computerized tomography, i.e. CT scans
• CPC Class Codes: A61F 2002/4649 Bone graft or bone dowel harvest sites
• CPC Class Codes: A61F 2002/4658 for measuring dimensions, e.g. length
• CPC Class Codes: A61F 2250/0097 Visible markings, e.g. indicia

Abstract

Bone guides for sizing or shaping bone are disclosed. The guides can be configured and sized for placement on a surgery table, instrument table or similar structure in an operating room. The guides provide for real time preparation of a bone graft during a surgical procedure.

Claims

1. A bone jig comprising:

a base;

a bone holding arrangement; and

a bone cutting arrangement including a first cutting block and a second cutting block, wherein the first and second cutting blocks are capable of pivoting relative to one another.

2. The bone jig according to claim 1 wherein the bone holding arrangement comprises a first and second bone holding member.

3. The bone jig according to claim 2 wherein the first bone holding member includes a first gripping end, the second holding member includes a second gripping end, the first and second gripping ends adapted to provide a four-point contact with a piece of bone when the bone is positioned in the holding arrangement.

4. The bone jig according to claim 2 wherein the first and second bone holding members each have a detachable gripping end.

5. The bone jig according to claim 1 wherein the first and second cutting blocks each have a slot for passing a saw blade therethrough.

6. The bone jig according to claim 1 further comprising a first pair of support arms and a second pair of support arms, the first pair of support arms capable of moving to and fro relative to the second pair of support arms.

7. The bone jig according to claim 6 wherein the second pair of support arms can move to and fro relative to the first pair of support arms.

8. A method for shaping bone comprising:

selecting a piece of bone to be shaped;

selecting a bone guide for shaping the bone, the bone guide comprising;

(i) a base;

(ii) a bone holding arrangement; and

(iii) a bone cutting arrangement including a first and second cutting guides, wherein the first and second cutting guides are capable of pivoting relative to one another;

positioning the bone in the bone holding arrangement; and

shaping the bone with the bone guide.