ESI Animal Test News
17 April 2008
On 17 April 2008, Dr. Vinuela's lab at UCLA tested our newly designed O-cluder and 135cm O-cluder delivery catheters, approximately twice as long as catheter systems previously tested in rabbits and small pigs.
Six O-cluder catheter systems were sucessfully tested, and six O-cluders were expanded and detached in a large Yucatan pig, including one that totally occluded a 3mm artery.
A video showing the deployment of the O-cluder and the resulting occlusion of the artery may be seen below.
ESI O-Cluder Deployment in a Pig Artery
31 March 2008
On 31 March 2008, ESI successfully demonstrated the ESI O-cluder’s ability to completely occlude blood flow in a parent artery. Previously, ESI demonstrated the ESI O-cluder blocking flow into manufactured aneurysms.
During a procedure at the Kansas University Medical Center animal lab, surgeon Igor Smirnov, M.D. placed ESI O-cluders into three increasingly larger arteries in an adult rabbit. ESI O-cluders were deployed in the right common carotid, the right subclavian, and the bachiocephalic trunk. After each deployment, Dr. Smirnov monitored blood flow by injecting contrast into the artery, and in each case, he detected no flow beyond the ESI O-cluder.
Additional images documenting the deployment of each of the three ESI O-cluders are presented here in a PowerPoint slide show.
The next ESI O-Cluder animal test will be conducted by Dr. Fernando Vinuela at UCLA on 17 April 2008.