Université Jean Monnet Saint-Étienne

Thales

Institut Mines-telecom

Association Pour La Recherche Et Le Developpement De Methodes Et Processus Industriels “Armines”

Centre Hospitalier Universitaire De Saint-ÉTienne

Centre Hospitalier Universitaire Saint-etienne

Stéphane Avril

Aymeric Pionteck

Baptiste Pierrat

Pierre Badel

David Perrin

Sébastien Gorges

Jean-Noël Albertini

A device for medical imaging by X-ray is provided. More specifically, it relates to the simulation of the deployment of an endoprosthesis in order to assist the surgeon in an endovascular surgical procedure. The invention makes use of a single 2D image in order to determine certain characteristics of a simplified model of the endoprosthesis: 2D positions, and deployment value of the stents; to determine the inherent rotation of at least one stent; then to determine the deployment of a model representing the structure of the stents, initialized on the basis of the preceding steps, in a 3D model of a vascular structure.

Simulation of the deployment of an endoprosthesis in real time

The method of assisting the production of an implantable unfurlable made to measure device comprises: three-dimensional reconstruction of a complex surface of the cavity in which the device will be implanted; Production of a first finite element mesh of this complex surface; Choosing of generic components of the device; Production of a second finite element mesh of these assembled generic components; Determination of the morphosis parameters for morphosing from the first mesh to a mesh of a set of simple linked volumes which is representative of the part of the cavity, and then deformation of the first mesh by this morphosis; Simulation of a deformation of the second mesh, by inverse morphosis dependent on the determined parameters, to the complex surface, simulating unfurling of the device; Determination of dimensioning of points of interest by projection onto the second deformed mesh; and Generation of a production blueprint plan of the device.

Method of assisting the production of an implantable unfurlable made to measure device

Growing community of inventors

Saint-Etienne, France

Stéphane Avril