The group's principal activities are to manufacture and market proprietary products for clinical health care markets in interventional cardiology and radiology, cardiovascular and vascular surgery, anesthesiology, emergency medicine and critical care. the group operates in 2 business segments - cardiac assist/monitoring products and collagen products/vascular grafts. the cardiac assist/monitoring products segment includes electronic intra-aortic balloon pumps and catheters that are used in the treatment of vascular disease and electronic physiological monitors. these products provide for patient safety and management of patient care. the collagen products/vascular grafts segment includes extravascular hemostasis devices, which are used to seal arterial puncture wounds to stop bleeding. cardiac assist/monitoring products accounted for 75% of fiscal 2002 revenues; Collagen products/vascular grafts, 25% and corporate and other, nominal.