Device for guiding a medical instrument inserted into a natural duct or an artificial duct of a patient

US9895197B2 · kind B2 · utility

Assignees

• Universite Pierre Et Marie Curie (Paris 6) · FR
• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR
• KIELIS · FR

Inventors

• Cecile Poquet · Ivry-sur-Seine, FR
• Pierre Mozer · Saint-Mandé, FR
• Michael Baumann · Herrenberg, DE
• Marie-Aude Vitrani · Paris, FR
• Guillaume Morel · Paris, FR
• Antoine Leroy · Bois-d'Arcy, FR
• Patrick Henri · Bois-Colombes, FR

Key dates

• Filing date: Sep 28, 2012
• Grant date: Feb 20, 2018
• Expiry date: Feb 25, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/508
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A device for guiding a medical instrument (2) inserted into a natural duct (101) or an artificial duct of a patient in order to bring at least a distal end (1) of the instrument in proximity to an internal organ (100). The device includes an articulated arm (3) with a plurality of degrees of freedom, for moving a proximal end (4) of the instrument, and a controlled blocking mechanism (7) for blocking the degrees of freedom of the articulated arm. The blocking mechanism is designed in such a way that, for at least one of the degrees of freedom, a blockage imposed on the degree of freedom can be released when an outer stress exerted on the instrument (2) exceeds a predetermined threshold.