Catheter or guidewire mounted automatic vessel occlusion and fluid dispersion devices that expand to occlude or partially occlude a vessel when a fluid is flowing in the catheter or guidewire, and that automatically collapse when fluid flow is stopped. Each occlusion device has an elastic skeleton covered...http://www.google.co.uk/patents/US20070129752?utm_source=gb-gplus-sharePatent US20070129752 - Catheter mounted automatic vessel occlusion and fluid dispersion devices
