METHOD AND APPARATUS FOR FORMING APERTURES IN BLOOD VESSELS

摘要

A hole former (1600) inclunding a penetration tip which retracts after the t ip is inserted through a blood vessel wall (1700), a penetration head (1604) th at passes through the wall and a base (1602) that does not pass through the wal l. A cutting tip is provided on the base, to cut the vessel wall. Once the cutting is complete, the penetration head is retracted relative to the blood vessel thus removing a plug cut from a vessel.