The suture delivery system utilizes two sutures. Each suture has a filament body and a toggle bar. The delivery system includes an elongated central tube with two needle retainer guides and a cam distally disposed on the central tube. The needles have piercing needle ends and each needle end carries...http://www.google.com/patents/US6398796?utm_source=gb-gplus-sharePatent US6398796 - Suture with toggle and delivery system