A clip for engaging tissue includes a generally annular-shaped body defining a plane and disposed about a central axis extending normal to the plane. The body includes alternating inner and outer curved regions, defining a zigzag pattern about a periphery of the clip. The body is biased towards a planar...http://www.google.co.uk/patents/US20040009289?utm_source=gb-gplus-sharePatent US20040009289 - Closure device and methods for making and using them
