Drill guide and template for prosthetic devices

• US 5,112,336 A
• Filed: 05/14/1991
• Issued: 05/12/1992
• Est. Priority Date: 05/14/1991
• Status: Expired due to Term

• Current Assignee: Zimmer Incorporated (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Intermedics Orthopedics, Inc.
• Inventors: Brown, Steven G., Krevolin, Janet L.
• Primary Examiner(s): Hafer, Robert A.
• Assistant Examiner(s): HANLON, BRIAN EMMETT
• Application Number:
  US07/699,737
• Time in Patent Office: 364 Days
• Field of Search: 606/54, 606/53, 606/86, 606/87, 606/96-99, 606/101-105
• US Class Current: 606/96
• CPC Class Codes: A61B 17/17 Guides or aligning means for drills , mills, pins or wires
• CPC Class Codes: A61B 17/1778 for the shoulder

Abstract

A drill guide and template for use in orthopedic surgery comprising a template and handle connected by a lockable universal joint. The handle further comprises a bent shaft. A template is provided with pins so that the template can be set into bone when accurately placed against a resected bony surface. The universal joint comprises a ball and socket joint with slots for increased adaptability. A threaded nut grips the ball against a distal end of the bent shaft. Tightening the nut onto shaft locks the ball in a selected position.

Claims

1. An orthopedic surgical drill guide for placement of drilled bores into a resected surface of a bone of a patient, said drill guide comprising

means for guiding a bone-cutting surgical bit, said guiding means comprising a plate having at least one bore extending therethrough;

a handle; and

a ball and socket joint connecting said handle and said guiding means, said ball and socket joint comprising a nut threadedly engaging a distal end of said handle, said nut having an open distal end with a plurality of inwardly curved fingers extending distally therefrom, and

a ball captured within said nut, said ball being rigidly connected to said guiding means.

2. The orthopedic surgical drill guide according to claim 1 wherein said distal end of said handle further comprises concave cavity adapted to mate with a part of said ball.

3. The orthopedic surgical drill guide according to claim 2 wherein the handle further comprises a curved shaft connecting said handle and said distal end.

4. The orthopedic surgical drill guide according to claim 3 wherein said nut further comprises means for tightening said nut on said distal end.

5. The orthopedic surgical drill guide according to claim 4 wherein the tightening means comprise a cuff having an enlarged radial dimension.

6. The orthopedic drill guide according to claim 5 wherein the drill guide further comprises at least one pin for temporarily securing said drill guide to bone.