Prosthesis connection system

A prosthesis including a first prosthetic limb component, a second prosthetic limb component, and a fastening system for fastening the first prosthetic limb component to the second prosthetic limb component,

• wherein the first prosthetic limb component is provided with a first coupling member and the second prosthetic limb component is provided with a second coupling member;
• wherein the first coupling member comprising a cylindric member having an axis, with a wall generally parallel with said axis;
• wherein the second coupling member comprises a circular skirt element having an axis and having corresponding external dimensions to the cylindric member whereby to permit a sliding fit therewith in an unfastened state;
• wherein the fastening system, associated with one of the first or second coupling members comprises a resilient member having an axis and wherein the resilient member is operable to expand laterally, orthogonally with respect to the axis, said axis being coaxial with the axis of the coupling member with which it is attached;
• wherein the fastening system is arranged such that, in a coupling mode of operation, the lateral expansion operates to cause the skirt to be in a state of frictional engagement with the other coupling member;
• and
• whereby the first and second coupling members couple together with associated first and second prosthetic limb components.