US 8,998,902 B2Granted

Multi-pin clamp and rod attachment

AssigneeDePuy Synthes Products, Inc.

InventorsMindy Lynn Hoffman, Charles Dean Preston, II, Michael Charles Mazzio

Life of this patent

Estimating the term…

Loading patent…

Abstract

The present invention provides a clamp assembly which allows the surgeon to snap a bone fixation assembly onto a bone fixation rod at an intermediate location along the length of the rod. It is not necessary to “thread” the clamp onto the rod starting at the end and sliding it down the length of the rod to the desired location. In particular, this invention provides a novel clamp assembly for use with standard bone fixation rods, and bone pins. The clamp allows the interconnection of a bone fixation rod with a bone pin locking assembly including a bone pin vise. The clamp is a single-piece construction, having a jaw capable of loosely capturing the bone fixation rod when the surgeon presses the jaw onto the rod. The assembly may be rigidly fixed to the rod using a bolt which tightens the jaw onto the rod.

Claims20

Dependent claims

A fixation member clamp assembly for coupling a bone fixation member, comprising:

a fixation member clamp including a jaw portion and an extension oriented to define a longitudinal axis of the fixation member clamp, the jaw portion having first and second opposing jaws, each extending parallel to the longitudinal axis from a proximal end of the extension in a first direction to a free distal end, the jaws oriented to not intersect the longitudinal axis, the jaws forming an opening therebetween configured to receive a bone fixation member, the extension extending from the jaw portion along the longitudinal axis in a second direction opposite from the first direction of the first and second opposing jaws;
a bone pin locking assembly;
and
a coupling formed as a unitary member having a first aperture-configured to receive the extension and provide a first degree of relative rotational freedom and a second aperture-configured and arranged to align with a corresponding opening in the bone pin locking assembly so that insertion of a locking element through the second aperture and into the opening causes the coupling to engage the bone pin locking assembly so as to provide at least a second degree of relative rotational freedom.

1 more element

A fixation member clamp assembly for coupling a bone fixation member, comprising:

a fixation member clamp including a jaw portion and a coupling portion oriented to define a longitudinal axis of the fixation member clamp, the jaw portion having first and second opposing jaws, each extending parallel to the longitudinal axis from a proximal end of the coupling portion in a first direction to a free distal end, the jaws oriented to not intersect the longitudinal axis, the jaws forming an opening therebetween configured to receive a bone fixation member, the coupling portion extending from the jaw portion along the longitudinal axis in a second direction opposite from the first direction of the opposing jaws;
a bone pin locking assembly;
and
a locking assembly formed as a unitary member comprising a coupling and a locking portion, the coupling forming a first aperture to receive the coupling portion along the longitudinal axis in the second direction and provide at least one degree of relative rotational freedom, the locking portion forming a second aperture through the locking assembly and configured and arranged to align with a corresponding opening in the bone pin locking assembly so that insertion of a locking element through the second aperture and into the opening causes the coupling to engage the bone pin locking assembly so as to provide at least a second degree of relative rotational freedom.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 13/738,461Filed 10 Jan 2013 · continuation
Priority: 14 Dec 2000
Published: US 2013/0131677 A123 May 2013
Granted: 7 Apr 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification2 codes

A61B 17/6466
Devices extending alongside the bones to be positioned: with pin-clamps movable along a solid connecting rod
A61B
Medical diagnosis and surgery

Family

Application09/736,753Parent of this continuation · filed 14 Dec 2000
Application10/402,897Parent of this continuation · filed 28 Mar 2003
US 6,565,564 B2Parent of this continuation · filed 20 May 2003
Application12/715,797Parent of this continuation · filed 2 Mar 2010
US 7,699,848 B2Parent of this continuation · filed 20 Apr 2010
US 2013/0131677 A1Pre-grant publication · published 23 May 2013
US 8,372,073 B2Parent of this continuation
US 2002/0077629 A1Published application
US 2003/0191468 A1Published application
US 2010/0160972 A1Published application
US 8,998,902 B2This patent

From the US filing history. Foreign family members aren’t listed.