Sling device and catch basket manufacturing method for extracting stone and/or fabric part from body cavity of person, involves connecting material strands at outer end parts with actuator to make pulling movement of strands

摘要

The method involves making slings from a springy material i.e. Nitinol(RTM: shape memory alloy), where material strands (MA) are connected with one another at distal ends and proximal ends. The material strands are made up of a material foil or a material sheet. The material strands are cut and bent around central areas in an oval shape with a fixed opening area. The material strands are connected at outer end parts (E1, E2) with an actuator to make a pulling movement of the material strands.