An aneurysm occlusion device is positionable within a cerebral blood vessel covering a neck of an aneurysm on the blood vessel. The device includes a tubular element having a lumen surrounded by an occlusive sidewall including a plurality of gaps. The gaps are sufficiently small to cause at least partial...http://www.google.com.tw/patents/US20070239261?utm_source=gb-gplus-share專利 US20070239261 - Aneurysm occlusion system and method
