Abstract: In embodiments, a shock absorber system for a prosthesis includes an outer housing having a bore and attachable to a prosthetic limb; an inner housing, attachable to a prosthetic socket, within the bore for axial and rotational movement relative to the outer housing; a first resilient element within the outer housing that resists axial movement of the inner housing into the bore and urges the inner housing back to an uncompressed configuration; and alternatively or in addition a second resilient element within the outer housing that resists rotational movement of the inner housing relative to the outer housing, wherein a torsional force urging relative rotation between the inner housing and the outer housing causes compression of the second resilient element such that the second resilient element resists the torsional force and urges the inner housing and outer housing back to an aligned configuration.

Abstract: An electrode is supported on a prosthetic liner to communicate electrically with a residual limb. A housing is fixed to the liner, and is receivable in a socket in an installed position. A processor is installed in the housing in communication with the electrode. Electrical signal contacts are exposed at a distal end of the housing for contacting electrical signal contacts in the socket. The housing defines a ground current path that communicates with a ground contact in the socket.

Abstract: An electrode is supported on a prosthetic liner to communicate electrically with a residual limb. A housing is fixed to the liner, and is receivable in a socket in an installed position. A processor is installed in the housing in communication with the electrode. Electrical signal contacts are exposed at a distal end of the housing for contacting electrical signal contacts in the socket. The housing defines a ground current path that communicates with a ground contact in the socket.