US 2012/0059383 A1Published application

Instrument for placement and implantation of a prosthetic component

AssigneeZimmer, Inc.

InventorsDaniel P. Murphy, Antony J. Lozier, Samuel P. DeStefano

Life of this patent

Estimating the term…

Loading patent…

Abstract

The present disclosure provides a surgical instrument that creates a vacuum seal between a prosthetic component and a surgical instrument to grasp the prosthetic component so that the surgical instrument may be utilized to manipulate the prosthetic component relative to an anatomical structure. The surgical instrument is further designed to be used as an impactor capable of receiving and transferring an impaction force for seating the prosthetic component relative to the anatomical structure without the surgical instrument losing its grasp on the prosthetic component. The surgical instrument of the present disclosure includes a suction device which may be selectively released once the prosthetic component is appropriately positioned and seated relative to the anatomical structure. Such selective release prevents disruption of the positioning of the prosthetic component and facilitates proper placement and implantation of the prosthetic component.

Claims20

Dependent claims

A surgical instrument for securement to a prosthetic component so that the surgical instrument may be utilized to manipulate the prosthetic component relative to an anatomical structure, the surgical instrument comprising:

a prosthetic component contacting end sized and shaped relative to the prosthetic component such that said prosthetic component contacting end is capable of forming a continuous seal between the surgical instrument and the prosthetic component;
an outer housing having an outer housing proximal end, an outer housing distal end, and a wall defining an elongate aperture between said outer housing proximal end and said outer housing distal end, said elongate aperture in fluid communication with said prosthetic component contacting end;
a plunger having an outer periphery and a plunger central axis, said plunger sized for movement within said elongate aperture of said outer housing;
a seal interposed between said plunger and said wall of said outer housing, said seal sized relative to said plunger and said outer housing so that, with said prosthetic component contacting end forming said continuous seal with the prosthetic component, movement of said plunger within said elongate aperture of said outer housing away from said prosthetic component contacting end effectuates a vacuum seal between said prosthetic component contacting end and the prosthetic component;
and
a lock connected to said outer housing and said plunger, said lock operable to selectively lock said plunger relative to said outer housing so that movement of said plunger within said elongate aperture of said outer housing toward said prosthetic component is prevented, whereby, with said lock locking said plunger relative to said outer housing so that movement of said plunger within said elongate aperture of said outer housing toward said prosthetic component is prevented, a force imparted to said plunger is transmitted to said prosthetic component contacting end via said lock and said outer housing.

3 more elements

A method of implanting a prosthetic component, comprising the steps of:

obtaining a surgical instrument comprising:
an active vacuum source;
and
a prosthetic component contacting end sized and shaped relative to the prosthetic component such that the prosthetic component contacting end is capable of forming a continuous seal between the surgical instrument and the prosthetic component;
contacting the prosthetic component with the prosthetic component contacting end such that the continuous seal is formed;
actuating the active vacuum source to effectuate a vacuum seal between the prosthetic component contacting end of the surgical instrument and the prosthetic component to secure the prosthetic component to the surgical instrument;
positioning the prosthetic component, using the surgical instrument, until a desired position is achieved;
and
imparting an impaction force to the prosthetic component through the surgical instrument.

6 more elements

A method of implanting a prosthetic component, comprising:

obtaining a surgical instrument, comprising:
a prosthetic component contacting end;
an outer housing having an outer housing proximal end, an outer housing distal end, and a wall defining an elongate aperture between the outer housing proximal end and the outer housing distal end, the elongate aperture in fluid communication with the prosthetic component contacting end;
a plunger having an outer periphery, the plunger sized for movement within the elongate aperture of the outer housing;
and
a seal interposed between the plunger and the wall of the outer housing;
contacting the prosthetic component with the prosthetic component contacting end such that a continuous seal is formed;
after said step of contacting the prosthetic component, moving the plunger within the elongate aperture of the outer housing away from the prosthetic component contacting end to effectuate a vacuum seal between the prosthetic component contacting end of the surgical instrument and the prosthetic component to secure the prosthetic component to the surgical instrument;
positioning the prosthetic component, using the surgical instrument, until a desired position is achieved;
and
disengaging the surgical instrument from the prosthetic component by breaking the vacuum seal.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/186,155Filed 19 Jul 2011
Priority: 3 Sep 2010
Published: 8 Mar 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

A61F 2/4612
For insertion or extraction of endoprosthetic joints or of accessories thereof: of shoulders
A61F 2002/4085
Glenoid components, e.g. cups: having a convex shape, e.g. hemispherical heads
A61F 2002/4627
With relative movement between parts of the instrument during use: with linear motion along or rotating motion about the instrument axis or the…
A61F 2002/4681
Special tools for implanting artificial joints: by applying mechanical shocks, e.g. by hammering