Patent ID: 8226731

Claim:
Connection adapter between a rigid transcutaneous implant, which can be anchored intracorporeally in a femoral stump, and a part of an extracorporeal orthopaedic knee joint, said connection adapter comprising a first coupling part for connection to the transcutaneous implant and a second coupling part for connection to the knee joint, the second coupling part being releasably connectable to the first coupling part characterized by a releasing safety coupling which is arranged inside the second coupling part, transfers a torsional moment between the first coupling part and the second coupling part, slides through when an adjustable maximum value of the torsional moment is exceeded, and is formed of a torsion disc fixed in the second coupling part from which torsion disc at least one shearing pin extends and engages with corresponding sockets in an end face of a sleeve that is in turn connectable to the first coupling part.