Necessity is the Mother of Invention
Home Made Continuous Passive Motion (CPM) machine
A Patients Husband made this home made hand operated device after seeing it used in Hospital. This is usually a very expansive machine , power operated and usually very sophisticated. However this hand made version serves all the same function as it automated counterpart at probably 1/100th the cost. GENIUS how it rehabs the knee whilst working out the arms and the upper body.