Abstract: An x-ray calibration apparatus includes a radiolucent knee alignment jig configured to receive a knee of a patient and a radiolucent cushion configured to hold a patient's knee at a fixed angle of flexion. The x-ray calibration apparatus also includes a number of radio-opaque fiducial markers positioned within the radiolucent knee alignment jig.
Abstract: A method for producing a customized surgical instrument or prosthesis for a specific patient is described. At least one x-ray image of a body part of the patient is captured. A statistical model having a dense set of anatomical correspondence points across the model is instantiated using image data derived from the at least one x-ray image to generate a patient specific model of the body part having a high accuracy surface. Patient specific data from the patient specific model is used to generate a design of the customized surgical instrument or prosthesis for use in a surgical procedure to be carried out on the body part. The surgical instrument or prosthesis is then manufactured using the design. A computer implemented method for generating the patient specific model of the body part is also described.
Type:
Grant
Filed:
February 26, 2009
Date of Patent:
November 25, 2014
Assignees:
Depuy International Ltd., Depuy Orthopadie GmbH, Imorphics Ltd.
Inventors:
Alan Ashby, Harald Bornfleth, Michael Anthony Bowes, Ian Michael Scott, Graham Richard Vincent, Michal Slomczykowski
Abstract: A method for producing a customised surgical instrument or prosthesis for a specific patient is described. At least one x-ray image of a body part of the patient is captured. A statistical model having a dense set of anatomical correspondence points across the model is instantiated using image data derived from the at least one x-ray image to generate a patient specific model of the body part having a high accuracy surface. Patient specific data from the patient specific model is used to generate a design of the customised surgical instrument or prosthesis for use in a surgical procedure to be carried out on the body part. The surgical instrument or prosthesis is then manufactured using the design. A computer implemented method for generating the patient specific model of the body part is also described.
Type:
Application
Filed:
February 26, 2009
Publication date:
April 21, 2011
Applicants:
DEPUY INTERNATIONAL LTD, DEPUY ORTHOPADIE GMBH, IMORPHICS LTD
Inventors:
Alan Ashby, Harald Bornfleth, Michael Anthony Bowes, Ian Michael Scott, Michal Slomczykowski, Graham Richard Vincent