A self-expanding filter has a deployable resilient distal portion with properties of passing fluid (e.g. blood) in a vessel (e.g. an artery) and blocking the passage of emboli in the fluid. The self-expanding filter is disposed in the vessel, in the direction of fluid flow in the vessel, with its resilient...http://www.google.com.au/patents/US6896691?utm_source=gb-gplus-sharePatent US6896691 - System for, and method of, blocking the passage of emboli through a vessel
