The present invention is a collapsible blood filter for use during a vascular procedure, such as angioplasty or stent deployment. A filter made of braided filaments is located on the distal end of a delivery member, and the filter is deployed downstream of the vascular treatment site to capture emboli...http://www.google.com.au/patents/US20020004667?utm_source=gb-gplus-sharePatent US20020004667 - Collapsible blood filter with optimal braid geometry
