A system for creating a passage through the pericardium of a patient to permit access of a cardiac harness delivery device, including a tubular introducer sleeve and a tubular dilator sleeve insertable into the introducer sleeve. The introducer sleeve has a slot and a distal portion biased in a reduced...http://www.google.co.uk/patents/US7736299?utm_source=gb-gplus-sharePatent US7736299 - Introducer for a cardiac harness delivery
