Occlusion detection system and occlusion detection methods for foreign drug infusion pump

摘要

Method of detecting the obstruction (16) in the flexible infusion tube by measuring at the appropriate time the sample indicating the pressure associated with the stage. Difference value for this sample is created. This difference value is compared with the percentage of difference values ​​other. Where appropriate, block signal is generated according to the comparison of the percentage of the difference value to another value difference. In one aspect, the invention provides a method of detecting the clogging of flexible injection tube, the method comprising the following steps: a first sample showing the pressure in the tube associated with the first stage , the process is measured at the appropriate time; the first difference value of one sample said to the two sample said; step of measuring at the appropriate time, a second sample that indicates the pressure of the tube associated with the second stage and includes and a process, which produces a blocking signal in response to the step of comparing the second difference value for one difference value said; process comparing the percentage of the second difference value for one difference value said; process of creating I will provide a way.