An apparatus includes a jet housing including an inlet and an outlet, and a nozzle within the jet housing for injecting fluid towards the outlet. A filter element is disposed on the inlet, the filter element including openings for preventing particulate larger than a predetermined size from entering...http://www.google.com.au/patents/US20040098033?utm_source=gb-gplus-sharePatent US20040098033 - Apparatus and methods for capturing particulate material within blood vessels
