ESI - Endovascular Excellence
ESI, a leading designer and developer of less-invasive endovascular devices, recently tested our newly designed O-cluder and 135cm O-cluder delivery catheters, about twice as long as catheter systems previously tested in rabbits and small pigs, at Dr. Fernando Vinuela's lab at UCLA.
Six O-cluder catheter systems were sucessfully delivered, expanded and detached in a large Yucatan pig, including one that totally occluded a 3mm artery. Click here to watch a video of that deployment.
Through the continued refinement of existing products and procedures and the development of new technologies, ESI’s broad product portfolio focuses on transcatheter-based technologies that represent an addressable worldwide endovascular market opportunity.
ESI O-cluder
The ESI O-cluder is the latest innovation in minimally-invasive aneurysm treatment. The ESI O-cluder's novel design overcomes many of the limitations of the current endovascular methods of treating aneurysms.
Superior Efficacy
No Recanalization
No Mass Effect
Pleated Stent
As a complimentary product to the ESI O-cluder, the design of the pleated stent produces deeper pleats that allow for tighter crimping and a smaller crossing profile when treating wide-necked and fusiform aneurysms.
Superior Efficacy
High Surface Density
Multiple Thicknesses

