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:
Jan. 07, 2020
Filed:
Jul. 23, 2014
Alphatec Spine, Inc., Carlsbad, CA (US);
Jean-Charles Le Huec, Pessac, FR;
Estelle Duveau, Grenoble, FR;
Sylvain Besson, Villard Bonnot, FR;
Philippe Augerat, Saint-Ismier, FR;
ALPHATEC SPINE, INC., Carlsbad, CA (US);
Abstract
A method for measuring the displacements of a vertebral column, a vertebra of the column including a location marker attached thereto and providing a location system with an orientation of the location marker, the method including: a detection of an initial orientation of the location marker associated with a vertebra, a determination of an initial orientation of a vertebral plane parallel to at least one end plate of the vertebra, and a calculation of a geometric transformation associated with the vertebra correlating the initial orientation of the vertebral plane with the initial orientation of the location marker, a detection of the current orientation of the location marker, and a calculation of the current orientation of the vertebral plane of the vertebra from the current orientation of the location marker and the geometrical transformation associated with the vertebra.
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