Put the stump motion for a moment in socket, do some signal action, so that residual limb and prosthesis electrode match fully,
put the batteryin the battery case by the correct method,turn on the battery(shift the dial to the red point) with "stretch" signal to control
the prosthetic hand open and wrist supination, with "bend" signal to controlthe hand close and wrist pronation.Using"switch"signal to control
prosthesis conversion between the hand and wrist(Note: "stretch" "bend" "switch" signal should be given professional guidance by prosthetic
technician)If the passive rotary elbow prostheses need to turn the elbow, the elbow should be "bent" to 90 degrees firstly, with healthy hand
holding the forearm cylinder,rotate carefully to the needed direction, the limit of plus or minus 45 degrees, do not vigorously jerked,
so as not to cause damage.