Patents by Inventor Matthieu Nesme

Matthieu Nesme has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system of automatic determination of geometric elements from a 3D medical image of a bone
    Patent number: 8965108
    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 (AX1).
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: February 24, 2015
    Assignee: A2 Surgical
    Inventors: Laurence Chabanas, Stéphane Lavallee, Matthieu Nesme, Jonathan Schers
  • METHOD AND SYSTEM OF AUTOMATIC DETERMINATION OF GEOMETRIC ELEMENTS FROM A 3D MEDICAL IMAGE OF A BONE
    Publication number: 20130094732
    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 (AX1).
    Type: Application
    Filed: June 16, 2011
    Publication date: April 18, 2013
    Applicant: A2 SURGICAL
    Inventors: Laurence Chabanas, Stéphane Lavallee, Matthieu Nesme, Jonathan Schers