Disclosed is a closure catheter, for patching a tissue opening such as an atrial septal defect, patent foreman ovale, or the left atrial appendage of the heart. The closure catheter carries a deployable patch and a plurality of tissue anchors, which may be deployed to secure the patch to surrounding...http://www.google.com.au/patents/US20010041914?utm_source=gb-gplus-sharePatent US20010041914 - Tissue patch deployment catheter
