Patent ID: 8801722

Claim:
A device for producing an anchorage in a load-bearing tissue with the aid of mechanical vibration and a thermoplastic material which is liquefiable by the mechanical vibration, the device comprising: a vibrating element with a distal end and a proximal end, the vibrating element being capable of transmitting vibration from its proximal end to its distal end, and wherein the distal end comprises a first contact face facing away from the proximal end, a counter element distally from the vibrating element with a contact end and an opposite end, wherein the contact end comprises a second contact face being adapted to the first contact face to be able to be positioned against the first contact face, wherein the liquefiable thermoplastic material is located on at least the second contact face, wherein the counter element comprises a foot piece of a material not liquefiable by the mechanical vibration, and an anchoring piece comprising the liquefiable thermoplastic material, wherein the foot piece is located distally from the anchoring piece, and wherein the counter element further a flexible force transmitting member being coupled to the foot piece and reaching past or through at least the distal end of the vibrating element, said flexible force transmitting member comprising at least one of a suture, a wire, a cable, a ribbon, a fabric of filaments, and a flexible sleeve, wherein the flexible force transmitting member is accessible from a proximal side, and wherein the flexible force transmitting member is capable of transmitting a pulling force exerted on the flexible force transmitting member to the foot piece as a counter force to a pushing force exerted to the vibrating element, wherein the anchoring piece is arranged to be compressed between the foot piece and the vibrating element as a result of the pushing force and the counter force.