ANTONIA REEVE / SCIENCE PHOTO LIBRARY ANTONIA REEVE / SCIENCE PHOTO LIBRARY
Heart surgery. Artery occluder (transparent tube) being inserted into one of the coronary arteries of the heart during coronary artery bypass surgery. A section of vein grafted from the leg will be attached to this artery, bypassing its narrowed or blocked section. The coronary arteries normally supply the heart muscle with oxygen. A Flo-Rester internal vessel occluder is seen here.
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