(19)
(11) EP 1 240 494 A2

(12)

(88) Date of publication A3:
31.01.2002

(43) Date of publication:
18.09.2002 Bulletin 2002/38

(21) Application number: 00992815.1

(22) Date of filing: 29.11.2000
(51) International Patent Classification (IPC)7G01N 1/00
(86) International application number:
PCT/US0042/365
(87) International publication number:
WO 0104/2758 (14.06.2001 Gazette 2001/24)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 29.11.1999 US 451238
25.02.2000 US 513564

(71) Applicant: NxStage Medical, Inc.
Lawrence, MA 01843 (US)

(72) Inventors:
  • BRUGGER, James, M.
    Newburyport, MA 01950 (US)
  • TREU, Dennis, M.
    Bedford, NH 03110 (US)

(74) Representative: Viering, Jentschura & Partner 
Postfach 22 14 43
80504 München
80504 München (DE)

   


(54) SYSTEMS AND METHODS FOR DETECTING AIR IN AN ARTERIAL BLOOD LINE OF A BLOOD PROCESSING CIRCUIT