A delay time generation circuit is disclosed that includes a counter circuit composed of plural cascade-connected flip-flop circuits for counting a pulse number of an input clock signal and uses as a delay time signal an inverse signal of an output of the last stage or a predetermined stage of the flip-flop circuits of the counter circuit. The filter 2 is moved from a retracted delivery configuration to an extended deployed configuration by a push wire 6 which has an engagement hoop 7 at the distal end. Forward cross-braces are connected from a forward end of each base portion to a first point on the main frame, and rearward cross-braces are connected from a rearward end of each base portion to a second point on the main frame proximately adjacent to the first point. The second surface of the semiconductor substrate includes a bottom protective layer with electrical connectors. The prosthetic joints according to the present invention can include artificial hips, knees, shoulders, ankles, and intervertebral discs.