A suture applying device comprises a shaft which carries a pair of needles near its distal end. The needles are joined by a length of suture, and the shaft is used to both introduce the needles into a lumen of a body structure and to push the needles back through tissue on either side of the puncture...http://www.google.com/patents/US5860991?utm_source=gb-gplus-sharePatent US5860991 - Method for the percutaneous suturing of a vascular puncture site
