(19)

(11)

EP 0 954 364 A1

(12)

(43) Date of publication: 10.11.1999 Bulletin 1999/45 (21) Application number: 97948395.0 (22) Date of filing: 19.11.1997

(51) International Patent Classification (IPC):  A61M 1/ 02( . ) B01D 17/ 12( . ) A61M 1/ 36( . ) B01D 19/ 00( . ) (86) International application number: PCT/US1997/021168 (87) International publication number: WO 1998/023353 (04.06.1998 Gazette 1998/22)

(84) Designated Contracting States: BE CH DE ES FR GB IT LI NL (30) Priority: 26.11.1996 US 19960755806 28.03.1997 US 19970829546 01.08.1997 US 19970905245 (71) Applicant: Medisystems Technology Corporation Las Vegas, Nevada 89101 (US)	(72) Inventors: SCHNELL, William, J. Libertyville, IL 60048 (US) UTTERBERG, David, S. Seattle, WA 98121 (US) (74) Representative: Schubert, Siegmar, Dipl.-Ing.  Patentanwälte Dr. Weinhold, Dannenberg, Dr. Gudel, Schubert Grosse Eschenheimer Strasse 39 60313 Frankfurt 60313 Frankfurt (DE)