A device for shearing tissue in a human or animal body may include a first member made of a first material and a second member made of a second material. A thread is connected to the first member and to the second member, and the first and second materials show magnetic attraction between one another. A means is provided for pulling the thread between the first and second members.La présente invention concerne un dispositif (70) pour le cisaillement de tissus dans un corps humain ou animal, comprenant un premier élément (11) comprenant un premier matériau, un second élément (72) comprenant un second matériau et un fil (13) relié au premier élément et au second élément. Les premier et second matériaux présentent une attraction magnétique entre eux. Le dispositif comprend un moyen (74) permettant de tirer le fil entre les premier et second éléments.
