(19)
(11) EP 1 790 363 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 158(3) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
30.07.2008 Bulletin 2008/31

(43) Date of publication:
30.05.2007 Bulletin 2007/22

(21) Application number: 05766440.1

(22) Date of filing: 21.07.2005
(51) International Patent Classification (IPC): 
A61M 1/14(2006.01)
(86) International application number:
PCT/JP2005/013359
(87) International publication number:
WO 2006/022099 (02.03.2006 Gazette 2006/09)
(84) Designated Contracting States:
DE FR GB IT SE

(30) Priority: 24.08.2004 JP 2004244220
23.05.2005 JP 2005149861

(71) Applicant: NIKKISO COMPANY, LTD.
Shibuya-ku, Tokyo 150-8677 (JP)

(72) Inventors:
  • TARUMI, Masatoshi c/o Nikkiso Company Limited
    Makinohara-shi, Shizuoka (JP)
  • MORI, Yoshihiro c/o Nikkiso Company Limited
    Makinohara-shi, Shizuoka (JP)
  • TOYODA, Masahiro c/o Nikkiso Company Limited
    Makinohara-shi, Shizuoka (JP)
  • TAKAKURA, Yasushi c/o Nikkiso Company Limited
    Makinohara-shi, Shizuoka (JP)
  • MURAKAMI, Tomoya c/o Nikkiso Company Limited
    Makinohara-shi, Shizuoka (JP)

(74) Representative: Grosse - Schumacher - Knauer - von Hirschhausen 
Nymphenburger Strasse 14
80335 München
80335 München (DE)

   


(54) BLOOD PURIFICATION APPARATUS


(57) A blood purification device allows confirming whether a specific peak is provided by a means, such as a ultrafiltration pump, to concentrate the blood or not and also allows measuring certainly and accurately a blood re-circulation with reduction of parameters which can provide a ratio of re-circulating blood. The blood purification device including blood circuit route 1 composed of arterial blood circuit route 1a and venous blood circuit route 1b, blood pump 3, dialyzer 2, water removal pump 8 which can provide the specific peak in the variation of blood concentration by removing water rapidly in a short period of time, and detecting means detecting said specific peak, can measure the blood re-circulation based on the specific peak detected by the detecting means. The re-circulating blood flowing is the blood which was introduced again to arterial blood circuit route 1a after it had been returned to a patient from venous blood circuit route 1b. The detecting means includes first detecting means 5a installed in arterial blood circuit route 1a and second detecting means 5b installed in venous blood circuit route 1b.