(19)

(11)

EP 0 777 836 A1

(12)

(43) Date of publication: 11.06.1997 Bulletin 1997/24 (21) Application number: 95930758.0 (22) Date of filing: 23.08.1995

(51) International Patent Classification (IPC):  A61M 16/ 18( . ) F17C 13/ 04( . ) B01J 4/ 00( . ) (86) International application number: PCT/SE1995/000954 (87) International publication number: WO 1996/006301 (29.02.1996 Gazette 1996/10)

(84) Designated Contracting States: DE DK FR GB IT NL (30) Priority: 24.08.1994 SE 19940002828 (71) Applicant: ENGSTRÖM MEDICAL AB S-161 02 Bromma (SE)	(72) Inventor: OLSSON, Stephan S-115 32 Stockholm (SE) (74) Representative: Hammar, Ernst A, et al  H. Albihns Patentbyra AB P.O.Box 3137 103 62 Stockholm 103 62 Stockholm (SE)