Reamer and drill guiding device

Patent metadata

Field	Value
Publication number	US-9393029-B2
Application number	US-70022510-A
Country	US
Kind code	B2
Filing date	Feb 4, 2010
Priority date	Feb 5, 2009
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

A device for guiding a drilling tool to form an opening in a bone, includes a body extending from a distal end to a proximal end, the body including a lumen extending therethrough, the lumen being sized and shaped to slidably accommodate a guidewire therein and a plurality of arms extending proximally from the proximal end, the arms being disposed about the lumen with a gripping surface of each arm being spaced radially from an axis of the guide wire lumen by a distance corresponding to a thickness of a guidewire to be received therein, the gripping surfaces gripping the guidewire to maintain a portion thereof extending proximally of the lumen along the axis of the lumen.

First claim

What is claimed is:

1. A device for guiding a drilling tool to form an opening in a bone, comprising:
a body extending from a distal end to a proximal end, the body including a lumen extending therethrough, the lumen being sized and shaped to slidably accommodate a guidewire therein; and
a plurality of arms extending therefrom about the lumen with a gripping surface of each arm being spaced radially from an axis of the guide wire lumen by a distance corresponding to a thickness of a guidewire to be received therein, the gripping surfaces gripping the guidewire to maintain a portion thereof extending from the lumen along the axis of the lumen.

2. The device of claim 1 , wherein the arms extend proximally from the proximal end of the body.

3. The device of claim 1 , wherein the gripping surface of a first one of the arms is formed at a proximal end thereof, the gripping surface extending further radially inward toward the axis of the lumen than portions of the arm extending distally therefrom.

4. The device of claim 1 , wherein a length of a first one of the arms is selected so that, when a distal abutting surface thereof contacts a corresponding structure on the drilling tool advanced over a guidewire received within the lumen, a desired depth of drilling has been achieved.

5. The device of claim 1 , wherein the arms are angled relative to the axis of the lumen such that proximal ends of each of the arms are closer to the axis of the lumen than are distal ends thereof.

6. The device of claim 1 , wherein the body is substantially cylindrical with an outer diameter thereof corresponding to an inner diameter of the drilling tool to be guided thereby.

7. The device of claim 6 , wherein the outer diameter of the body is slightly smaller than the inner diameter of the drilling tool to be guided thereby.

8. The device of claim 1 , wherein the device is adapted to guide the drilling tool thereover for forming a cortical opening to a medullary canal of a bone.

Assignees

• Plecko Michael
• Felder Martin
• Sigrist Andreas
• Depuy Synthes Products Inc

Inventors

• Plecko Michael
• Felder Martin
• Sigrist Andreas

Classifications

• A61B17/1725

  for applying transverse screws or pins through intramedullary nails or pins · CPC title

• A61B17/1717

  for applying intramedullary nails or pins · CPC title

• A61B17/1637 Primary

  Hollow drills or saws producing a curved cut, e.g. cylindrical (A61B10/025, A61B17/1695 take precedence) · CPC title

• A61B2017/1602

  Mills · CPC title

• A61M25/09

  Guide wires · CPC title