10 Heart lung machines, hyperthermic and hypothermic apparatus for raising and lowering the temperature of the patient's body during surgery, medical devices for analyzing and controlling blood and gas parameters; oxygenators, containers for liquid and gases for medical purposes; blood pumps; blood filters; heat exchangers for medical purposes; catheters; injection tubes for medical purposes; custom tubing packs and valves for medical apparatus; medical blood and gas pressure indicators; annuloplasty prosthesis; mammaria retractors, bio-compatible coated surgery apparatus namely, oxygenators, reservoirs, filters, custom tubing packs, catheters, cannulae, connectors, blood bags, heat exchangers, centrifugal pumps, heart-valve and vascular prostheses, cardioplegia systems consisting primarily of cannulae and associated tubing, pumps and monitors, supporting lines for custom tubing sets, vacuum controller for medical purposes