US Patent 7160310 Surgical device for pushing together a thread loop

To avoid a maximum displacing force being exceeded in the case of a device for pushing together a thread loop which is formed by a slip knot at the distal free end of the thread which can be displaced along the thread, with a displacing element which can be displaced on the thread in the direction of the loop, it is proposed that the displacing element or the proximal portion of the thread disposed at the end of the displacing element remote from the loop has connected to it a gripping element which releases the connection between itself and the displacing element or the proximal portion of the thread when a specific holding force is exceeded.