Infusion pump blocking pressure detection method, device and equipment and medium

Abstract

The invention discloses an infusion pump blocking pressure detection method. The method comprises the following steps: after an infusion pump is started, acquiring first sensing pressure detected by apressure sensor at a first moment and second sensing pressure detected by the pressure sensor at a second moment different from the first moment; calculating the function coefficient of the pressurefunction of an infusion tube according to the first sensing pressure at the first moment and the second sensing pressure at the second moment; acquiring real-time sensing pressure detected by the pressure sensor in real time, and updating the pressure function according to the real-time sensing pressure; and obtaining the current sensing pressure detected by the pressure sensor at the current moment, calculating the current infusion tube pressure at the current moment according to a target pressure function, and calculating the current blocking pressure according to the current sensing pressure and the current infusion tube pressure. When the blocking pressure is calculated, the accurately obtained infusion tube pressure is excluded, so that the blocking pressure detection precision of a product is finally improved. In addition, the invention further provides a blocking pressure detection device and equipment and a storage medium.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a method, device, equipment and medium for detecting the blocking pressure of an infusion pump. Background technique [0002] At present, in the detection of the blocking pressure of the infusion pump in the market, the difference method is used to eliminate the pressure of the infusion tube itself, so as to obtain the pressure of the liquid in the infusion tube (ie, the blocking pressure) more accurately. At present, some of the initial value processing is to take a certain fixed value, and some are to continuously obtain the minimum value. At present, various infusion tubes that are common on the market, including PVC (Polyvinyl chloride, polyvinyl chloride) tubes, etc., all have the same stress relaxation phenomenon (that is, the total deformation of the infusion tube remains unchanged, the creep increases the plastic deformation, and the elastic deformation Correspon...

AI Technical Summary

Problems solved by technology

It is precisely because of the characteristics of the polymer material of the infusion tube that the pressure value of the infusion tube itself will continue to decrease, so the effect of calculating the blocking pressure with a certain fixed value will be very poor

However, if the minimum value of the infusion tube pressure is continuously taken, it is also difficult to obtain the minimum value accurately.

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