(19)

(11)

EP 0 245 468 A1

(12)

(43) Date of publication: 19.11.1987 Bulletin 1987/47 (21) Application number: 86907145.0 (22) Date of filing: 04.11.1986

(51) International Patent Classification (IPC):  A61M 16/ 00( . ) A61M 16/ 20( . ) (86) International application number: PCT/US1986/002412 (87) International publication number: WO 1987/002590 (07.05.1987 Gazette 1987/10)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 05.11.1985 US 19850795216 (71) Applicants: SHATTUCK, Leonard L. Worcester, MA 01604 (US) HOWARD, Douglas C. Buena Park, CA 90620 (US) WESTCOTT, Merton L. Garden Grove, CA 92640 (US)	(72) Inventors: SHATTUCK, Leonard L. Worcester, MA 01604 (US) HOWARD, Douglas C. Buena Park, CA 90620 (US) WESTCOTT, Merton L. Garden Grove, CA 92640 (US) (74) Representative: Lynd, Michael Arthur, et al  MARKS & CLERK 57 Lincoln's Inn Fields London WC2A 3LS London WC2A 3LS (GB)