(19)

(11)

EP 0 232 263 A1

(12)

(43) Date of publication: 19.08.1987 Bulletin 1987/34 (21) Application number: 85904355.0 (22) Date of filing: 20.08.1985

(51) International Patent Classification (IPC):  A61B 5/ 20( . ) G01F 3/ 38( . ) A61M 1/ 00( . ) G01F 23/ 292( . ) (86) International application number: PCT/US1985/001592 (87) International publication number: WO 1987/001025 (26.02.1987 Gazette 1987/05)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (71) Applicant: BIOFLOW, INC. Costa Mesa, CA 92626 (US)	(72) Inventors: ROVAN, Joseph, W. Costa Mesa, CA 92626 (US) WALKER, Stephen, A. Fountain Valley, CA 92708 (US) LAUL, Virgil, R. Dana Point, CA 92629 (US) (74) Representative: Rushton, Ronald  SOMMERVILLE & RUSHTON 11 Holywell Hill St. Albans Hertfordshire AL1 1EZ St. Albans Hertfordshire AL1 1EZ (GB)