Devices, systems and methods are provided for tissue approximation and repair at treatment sites. In particular, fixation devices are provided comprising a pair of elements each having a first end, a free end opposite the first end, and an engagement surface therebetween for engaging the tissue, the...http://www.google.es/patents/US7604646?utm_source=gb-gplus-sharePatente US7604646 - Locking mechanisms for fixation devices and methods of engaging tissue
Locking mechanisms for fixation devices and methods of engaging tissue