血液透析装置
- 专利权人:
- 株式会社ジェイ・エム・エス
- 发明人:
- 吉村 茂晴,山下 明泰
- 申请号：
- JP2010118079
- 公开号：
- JP5026558B2
- 申请日:
- 2010.05.24
- 申请国别(地区):
- JP
- 年份:
- 2012
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a hemodialyzer accurately measuring pressure by each fluid feeder in a fluid system provided with a plurality of fluid feeders.
SOLUTION: The hemodialyzer includes: pressure sensors 18, 19, 20 and 21 provided at pressure measuring points on the blood-entrance side, blood-exit side, dialysis-fluid-entrance side and dialysis-fluid-exit side of the dialyzer 16 a first pressure-waveform calculating part 2 for calculating a pressure waveform at the pressure measuring point from the output signal of the pressure sensor a frequency-spectrum calculating part 3 for calculating a frequency spectrum from the pressure waveform rotation-detection sensors provided respectively in a blood pump 13, a fluid-supply side pump, a fluid discharging-side pump and a water discharging pump 14 a filter part 4 for detecting the rotation number of each pump from the output signal of the rotation detection sensor, calculating the frequency of each pump from the detected rotation number, specifying a frequency band which becomes a noise component, and removing the frequency band which becomes the noise component from the frequency spectrum and a second pressure-waveform calculating part 5 for calculating the pressure waveform from the frequency spectrum from which the frequency band becoming the noise component is removed.
COPYRIGHT: (C)2010,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
