A filter system for temporary placement of a filter in an artery or vein is disclosed. The filter system includes a guidewire that is first positioned across a lesion within a vessel. The guidewire may include a distal stop. A slideable filter is then advanced along the guidewire using an advancing mechanism,...http://www.google.de/patents/US6371971?utm_source=gb-gplus-sharePatent US6371971 - Guidewire filter and methods of use
