Apparatus for filtering and entrapping debris in the vascular system of a patient, the apparatus including a filter to allow blood to flow therethrough and to restrict passage of debris, wherein the filter captures debris carried in a first direction of blood flow. The apparatus further includes an entrapment...http://www.google.de/patents/US6692513?utm_source=gb-gplus-sharePatent US6692513 - Intravascular filter with debris entrapment mechanism
