Embodiments of a suturing device and methods of suturing are disclosed. The device comprises an arcuate needle, a plurality of one way gate mechanisms radially spaced around a portion of the arcuate needle, where each one way gate mechanism engages the needle in one direction, and a driving means for...http://www.google.se/patents/US20050015101?utm_source=gb-gplus-sharePatent US20050015101 - Leverage locking reversible cyclic suturing and knot-tying device
