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. 24, 2015
Filed:
Jun. 16, 2011
Method and system of automatic determination of geometric elements from a 3d medical image of a bone
Laurence Chabanas, Saint-Pierre-d'Allevard, FR;
Stéphane Lavallee, Saint-Martin-d'Uriage, FR;
Matthieu Nesme, Le Sappey, FR;
Jonathan Schers, Grenoble, FR;
Laurence Chabanas, Saint-Pierre-d'Allevard, FR;
Stéphane Lavallee, Saint-Martin-d'Uriage, FR;
Matthieu Nesme, Le Sappey, FR;
Jonathan Schers, Grenoble, FR;
A2 Surgical, Le Mans, FR;
Abstract
The invention relates to an automated method for precise determination of the head center and radius and the neck axis of an articulated bone from acquired 3D medical image of an articulation, comprising the following steps: i) determining, from a 3D image of the bone, an approximate sphere (SFO) of the head of the bone that substantially fits the spherical portion of the head of the bone; ii) constructing from the 3D image and the approximate sphere (SFO), a 3D surface model (S) of the bone; iii) determining, from the 3D surface model (S) and from the approximate sphere (SFO), an approximate neck axis (AXO) of the neck of the bone; iv) determining, from the 3D surface model (S) and the approximate sphere (SFO), a precise sphere (SF); v) determining, from the 3D surface model (S), the precise sphere (SF) and the approximate neck axis (AXO), a precise neck axis (AX).