US 10,441,437 B2 · System for determining the position of a knee prosthesis

Abstract

The present application provides an apparatus and method for determining a position of a joint prosthesis using a computer assisted orthopedic surgery system in support of an arthroplasty surgery. The apparatus and method includes attaching a first locatable element to a first bone on one side of a joint, providing a sensor having a second locatable element and moving the sensor in proximity of the joint to locate a plurality of positions of the sensor relative to the first locatable element using a tracking devise. The apparatus and method further includes selecting a generic model of a joint, determining the generic model in response to the plurality of positions located using the tracking device to generate a deformed model, determining a position for a joint prosthesis on the deformed model, and outputting on a display the determined position upon the deformed model.

Claims12

Dependent claims

A computer assisted orthopedic surgery system in support of an arthroplasty surgery of a patient's knee joint, comprising:

a first locatable element attachable to a first bone on one side of the patient's knee joint;
a sensor comprising a second locatable element, the sensor being movable in proximity of the patient's knee joint;
a tracking device for intra-operatively locating a plurality of positions of the sensor relative to the first locatable element;
a computer programmed to generate a computer model of the first bone that is specific to the patient in response to the plurality of positions of the tracking device that are specific to the patient without the use of pre-operative images and to provide an initial placement for a knee prosthesis on the computer model;
and
a display connected to the computer to output the initial placement of the knee prosthesis upon the computer model.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/982,221Filed 29 Dec 2015 · continuation

Priority

FR 00 141736 Nov 2000

Published

US 2016/0106554 A121 Apr 2016

Granted

15 Oct 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification27 codes

A61F 2/4657
Special tools for implanting artificial joints: measuring instruments used for implanting artificial joints
A61B 5/062
Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing…
A61B 6/032
Computed tomography [CT]: transmission computed tomography [CT]
A61B 17/154
Guides therefor: for preparing bone for knee prosthesis

Family

PCT/FR01/03423Parent of this continuation · filed 6 Nov 2001

Application13/404,358Parent of this continuation · filed 24 Feb 2012

US 8,126,533 B2Parent of this continuation · filed 28 Feb 2012

Application14/148,333Parent of this continuation · filed 6 Jan 2014

US 8,626,267 B2Parent of this continuation · filed 7 Jan 2014

Application14/531,353Parent of this continuation · filed 3 Nov 2014

US 8,880,152 B2Parent of this continuation · filed 4 Nov 2014

Application14/704,518Parent of this continuation · filed 5 May 2015

US 9,050,132 B2Parent of this continuation · filed 9 Jun 2015

US 2016/0106554 A1Pre-grant publication · published 21 Apr 2016

US 9,220,571 B2Parent of this continuation

Application10/415,962Parent of this continuation

US 2005/0101966 A1Published application

US 2007/0185498 A2Published application

US 2012/0165706 A1Published application

US 2014/0188121 A1Published application

US 2015/0051478 A1Published application

US 2015/0230877 A1Published application

US 10,441,437 B2This patent

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

System for determining the position of a knee prosthesis

Life of this patent

System for determining the position of a knee prosthesis

Life of this patent

Abstract

Claims12