Medical apparatus, equipment, devices and instruments for use in surgery; medical and surgical apparatus, equipment, devices and instruments for monitoring and/or measuring a physical characteristic of a vessel, cavity, lumen, sphincter or an organ of a human or animal subject; medical and surgical apparatus, equipment, devices and instruments for treating, dilating and/or removing an occlusion in a vessel, cavity, lumen or an organ of a human or animal subject; medical and surgical apparatus...