Patent ID: 8840627

Claim:
A device for holding and for controlled translational movement, in a longitudinal direction, comprising: a first gripping part ( 5 ) configured for gripping a needle ( 2 ), movable relative to a support ( 3 ) in a manner that is commanded and/or controlled in a translational direction (Z) with a predetermined maximum travel; and a second part ( 6 ) that is stationary relative to the support ( 3 ) and able to guide the needle ( 2 ) when the needle ( 2 ) is moved by the first movable gripping part ( 5 ) and, if necessary, to keep said needle ( 2 ) in position when the latter is not engaged with said first movable gripping part ( 5 ), the first and second parts ( 5 and 6 ) being aligned in the translational direction (Z) and whereby the first gripping part ( 5 ) can be moved alternatively between a proximal position of the second part ( 6 ) and a distant position of the device ( 1 ), wherein the first gripping part ( 5 ) comprises movable jaws ( 7 ), whereby the needle ( 2 ) is locked and the first gripping part ( 5 ) is a mandrel through which the needle ( 2 ) passes, whereby said mandrel ( 5 ) can be moved in rotation with the needle ( 2 ) around the translational direction (Z), and the jaws ( 7 ) are mounted, with a capability of guided sliding, in a body ( 10 ) with a tubular passage ( 10 ″) that is designed to receive the needle ( 2 ), and the mandrel ( 5 ) presents in an open state a maximum opening of the jaws ( 7 ) and an opening degree to ensure total relaxation of the needle without lateral pulsation, such that movement of said jaws ( 7 ) is generated by a rotational movement of a rotary maneuvering ring ( 9 ) that surrounds the body ( 10 ), the needle being a needle for a percutaneous medical procedure, and the device is configured to be mounted on an adjustable support, a platform or an arm of a robotic device in a manner that is controlled in position and in orientation.