Device for taking at least one sample of tissue

Abstract

This invention relates to a device () for taking at least one sample of soft tissue from an organ, said device comprising a body () and a needle () formed by a stylet and a cannula coaxial with said stylet. The device comprises a mechanism for arming the needle, designed for sequentially moving the cannula and then the stylet from a rest position wherein the stylet and the cannula are extended towards the outside of the body, to a shooting position wherein the stylet and the cannula are retracted towards the rear of the body, and a triggering mechanism designed to release the stylet then the cannula and to allow their displacement from the shooting position to the rest position. The cannula is kinematically coupled to a cannula slider () comprising at least one retaining element () for maintaining the cannula slider in a shooting position. The stylet is coupled kinematically to a stylet slider () comprising at least one retaining element () for maintaining the stylet slider in a shooting position and means for unlocking the cannula slider. This device is characterized in that the needle () comprises at least one sliding shoe () located on the side of the body of the device () and arranged in such a way that the stylet () and the cannula () slide relative to each other while at the same time resting on this sliding shoe ().