Continuous passive motion devices are medical devices used in the field of rehabilitation and orthopedics. These machines are designed to move a patient's joint through a range of motion continuously without active involvement from the patient. Continuous Passive Motion devices are commonly used after surgery or injury to the knee, shoulder, hip, or other joints, to aid in the recovery process. The principle behind CPM is to reduce the risk of joint stiffness, improve circulation, and reduce the formation of scar tissue. Continuous Passive Motion Devices can also help alleviate pain and inflammation. By promoting gentle, continuous movement, CPM devices allow the joint to maintain mobility without the stress of active motion. CPM devices typically consist of a frame that supports the limb and a motor that moves the joint through a prescribed range of motion.
