Abstract: The device for mechanical lithotripsy and removal of stones that form in the bile duct or urinary system has a stone collection basket at a distal end of a tube and two actuators at the proximal end of the tube. A cable runs through the tube and connects each actuator to the basket. The actuators are screw drives and form a common structural unit that is concentric to the tube and the cable. One actuator controls the opening and closing of the basket while the other actuator controls the force transmitted through the cable to the basket to allow for crushing of the stone in the basket.

Abstract: A device (1) for endoscopic removal of stones or concrements from a bile and pancreatic duct or foreign bodies and polyps subsequent to polypectomy in the upper or lower gastrointestinal tract comprises a cable (9) guided in a tube (2) and further comprises, on its proximal end, an actuation element (3) for an axial displacement of the cable (9) within the tube (2). The cable (9) receives, on its distal end, a collecting basket (16) formed by at least four elastic basket wires (17), said basket wires (17) being bundled at one end on the cable (9) and at another end on a guide element (18). The basket wires (17) bear against the end of the tube (2) such that an axial displacement of the cable (9) leads to a loop-like contraction or expansion of the collecting basket (16) and to a twisting of the collecting basket (16) about its longitudinal axis.

Abstract: The device for mechanical lithotripsy and removal of stones that form in the bile duct or urinary system has a stone collection basket at a distal end of a tube and two actuators at the proximal end of the tube. A cable runs through the tube and connects each actuator to the basket. The actuators are screw drives and form a common structural unit that is concentric to the tube and the cable. One actuator controls the opening and closing of the basket while the other actuator controls the force transmitted through the cable to the basket to allow for crushing of the stone in the basket.

Abstract: A device (1) for endoscopic removal of stones or concrements from a bile and pancreatic duct or foreign bodies and polyps subsequent to polypectomy in the upper or lower gastrointestinal tract comprises a cable (9) guided in a tube (2) and further comprises, on its proximal end, an actuation element (3) for an axial displacement of the cable (9) within the tube (2). The cable (9) receives, on its distal end, a collecting basket (16) formed by at least four elastic basket wires (17), said basket wires (17) being bundled at one end on the cable (9) and at another end on a guide element (18). The basket wires (17) bear against the end of the tube (2) such that an axial displacement of the cable (9) leads to a loop-like contraction or expansion of the collecting basket (16) and to a twisting of the collecting basket (16) about its longitudinal axis.

Abstract: A method and apparatus for the endoscopic application of self-closing medical clips (3), in particular, for arresting internal bleeding. The distal end of a catheter tube (1) is introduced into the body of a living being to be treated. Several clips (3), arranged successively in the catheter tube (1), are pushed forward in the direction of the tube distal end by a user device located at the proximal end of the catheter tube (1). The foremost clip (3) to be applied is pushed out of the distal end and opened by an actuation device. The actuation device includes an actuation element (21) which can be actuated by the user device, moved longitudinally into the catheter tube (1), and acts on the first front clip (3), as well as a control part (25) which converts the actuation force of the actuation element into an opening movement of the legs (5) of the clip (3).