An improved suture anchor is formed from body tissue. The body tissue is shaped to a desired configuration for the anchor and defines a passage through the anchor. A suture is inserted into the passage in the body tissue of the anchor. The anchor is then positioned in a patient's body with...http://www.google.com.tw/patents/US5713921?utm_source=gb-gplus-share專利 US5713921 - Suture anchor