Electrotherapy stimulation devices comprising electrical nerve and muscle stimulators for rehabilitative and pain management purposes, and parts and fittings therefor; medical ultrasound therapy devices, and parts and fittings therefor; continuous active motion devices for rehabilitation of the hip, knee, and shoulder joints; continuous passive motion devices; therapeutic cold therapy units, namely, cold therapy packs and pads; cooling apparatus used for medical and therapeutic equipment used during medical and therapeutic procedures; compression therapy units, and parts and fittings therefor for reducing pain, swelling and inflammation; therapeutic heat therapy units, namely, heat therapy packs and pads; heating apparatus used for medical and therapeutic equipment used during medical and therapeutic procedures; traction apparatus for medical use; patient treatment tables