发明授权
US07632411B2 Method for detecting filter clogging by using pressure information, apparatus for monitoring filter clogging and bed-side system
失效
通过使用压力信息检测过滤器堵塞的方法，用于监测过滤器堵塞的装置和床侧系统
- 专利标题： Method for detecting filter clogging by using pressure information, apparatus for monitoring filter clogging and bed-side system
- 专利标题（中）： 通过使用压力信息检测过滤器堵塞的方法，用于监测过滤器堵塞的装置和床侧系统
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申请号： US10545990申请日： 2004-02-11
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公开(公告)号： US07632411B2公开(公告)日： 2009-12-15
- 发明人: Yasuhiro Kuroda , Yohsuke Kinouchi , Masatake Akutagawa , Toshiya Okahisa , Yoshiaki Ohnishi
- 申请人： Yasuhiro Kuroda , Yohsuke Kinouchi , Masatake Akutagawa , Toshiya Okahisa , Yoshiaki Ohnishi
- 申请人地址： NL Eindhoven
- 专利权人： Koninklijke Philips Electronics N.V.
- 当前专利权人： Koninklijke Philips Electronics N.V.
- 当前专利权人地址： NL Eindhoven
- 优先权： JP2003-041731 20030219
- 国际申请： PCT/IB2004/000415 WO 20040211
- 国际公布： WO2004/073772 WO 20040902
- 主分类号： B01D11/00
- IPC分类号： B01D11/00 ; B01D21/24 ; B01D24/38 ; C02F1/44
摘要：
A method is provided for detecting filter clogging which are able to keep track of the filter clogging with precision and in detail. At least one pressure selected from the group consisting of a pressure Pa in a blood inflow portion (32a), a pressure Pv in a blood outflow portion (32b), a pressure Pf1 in a filtrate inflow portion (32c), and a pressure Pf2 in a filtrate outflow portion (32d) is measured continuously, then a variation (pressure waveform) of the pressure is analyzed, a clogging of a filter (32) is detected using the analyzed result. Thereby a clogging of a filter is detected early. As a result, it is possible to prevent from developing of the filter clogging by controlling a dosage amount of anti-coagulant properly and changing a flow rate of blood. The variation of the pressure wave may be analyzed by subjecting the variable to Fast Fourier Transform.
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