| 摘要 |
PROBLEM TO BE SOLVED: To provide a system which avoids glitches in a first filter for protecting a pressure transducer in a pressure transducer line which are not noticed. SOLUTION: This invention relates to a pressure-monitoring device (40) of a blood line. In the device, the pressure transducer line (12), branched from the blood line (11), can be coupled to a pressure transducer (21). In order to inhibit the arbitrary contamination of the pressure transducer (21), the first filter (13) for protecting the pressure transducer is used, by the first filter (13) the pressure transducer line (12) is divided into a blood line side section (12A), between the blood line (11) and the first filter (13), and the pressure transducer side section (12B) between the first filter (13) and the pressure transducer (21). This device (40) further has a sensor (24) for detecting the presence of liquid inside the pressure transducer side section (12B) of the pressure transducer line (12). COPYRIGHT: (C)2007,JPO&INPIT
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