The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2018
Filed:
Aug. 23, 2013
Stryker Leibinger Gmbh & Co. KG, Freiburg, DE;
STRYKER EUROPEAN HOLDINGS I, LLC, Kalamazoo, MI (US);
Abstract
A technique for determining a transformation between a navigation reference coordinate system () for navigation of a surgical device () relative to patient image data and an image coordinate system () in which the patient image data define a shape of a patient surface is provided. A computer-implemented method implementation of that technique comprises receiving multiple data sets that have been taken from different perspectives of the patient surface. Feature coordinates of multiple features () identifiable in the picture data sets are determined from the picture data sets and in the navigation reference coordinate system (). From the feature coordinates, a shape model of the patient surface in the navigation reference coordinate system () is determined. Then, surface matching between the shape model and the shape of the patient surface defined by the patient image data is applied to determine the transformation (T) between the navigation reference coordinate system () and the image coordinate system ().