A device for cutting tissue in a human body may include an elongate, hollow shaft having a proximal portion and a distal portion, a bundle of flexible wires slidably disposed within at least a portion of the shaft and having a proximal end and a distal end, and an actuator coupled with the proximal portion...http://www.google.es/patents/US20080051812?utm_source=gb-gplus-sharePatente US20080051812 - Multi-Wire Tissue Cutter
