Abstract: A movement amplifying actuation device may include two piezoelectric beams, one beam being attached at a fixed point, and a hinge connecting a first beam and a second beam between them. Each hinge may include a first flexible portion connected to the first beam, a second flexible portion connected to the second beam, a first rigid portion connecting the first and second flexible portions, a second rigid portion capable of being positioned against a fixed point, and a third flexible portion connecting the second beam to the second rigid portion at a pivot point of the second beam such that the assembly formed by the second rigid portion and the second beam forms a lever around the pivot point. The flexible and rigid portions may form a single piece.

Abstract: Movement amplifying actuation device (100) comprising at least two piezoelectric beams (101, 102, 103), one beam (101) being attached at a fixed point (111), and at least one hinge (131, 132) connecting a first beam (101, 102) and a second beam (102, 103) between them. Each hinge comprises: a first flexible portion connected to the first beam, a second flexible portion connected to the second beam, a first rigid portion connecting the first and second flexible portions, a second rigid portion capable of being positioned against a fixed point (112, 113), and third flexible portion connecting the second beam to the second rigid portion at a pivot point of said second beam such that the assembly formed by the second rigid portion and the second beam forms a lever around said pivot point. Said flexible and rigid portions form a single piece.

Abstract: The invention concerns a multi-view imaging system for laparoscopic surgery comprising: A tubular member; A first imaging device having a longitudinal body and an active end for acquiring images, intended to be inserted through the tubular member, and movable in the tubular member in translation along the longitudinal axis and/or in rotation about the longitudinal axis; A second imaging device comprising at least two cameras each mounted on a support member and movable relative to the tubular member between: a stowed position in which the cameras are positioned inside the tubular member, and a deployed position in which the cameras are positioned outside the tubular member at the distal end, the cameras being arranged on either side of the longitudinal axis of the tubular member and being held secure relative to the tubular member by holding means, so as to follow any movement of the tubular member.