(19)

(11)

EP 0 193 599 A1

(12)

(43) Date of publication: 10.09.1986 Bulletin 1986/37 (21) Application number: 85904714.0 (22) Date of filing: 06.09.1985

(51) International Patent Classification (IPC):  A01N 43/ 90( . ) (86) International application number: PCT/US1985/001708 (87) International publication number: WO 1986/001724 (27.03.1986 Gazette 1986/07)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 07.09.1984 US 19840648086 (71) Applicant: THE GENERAL HOSPITAL CORPORATION Boston, MA 02114 (US)	(72) Inventor: NATHANSON, James Wellesley, MA 02181 (US)