Method and system for automatically adjusting PCA (patient controlled analgesia) infusion parameters of electronic infusion pump

Abstract

A method for automatically adjusting PCA (patient controlled analgesia) infusion parameters of an electronic infusion pump comprises following steps: step S1, the number of generation times of PCA activation signals is acquired through a PCA assembly in a preset timing cycle; step S2, whether the times of the PCA activation signals in the preset timing cycle are smaller than or equal to a lower threshold of the times, are larger than the lower threshold of the times and smaller than an upper threshold of the times, or are larger than or equal to the upper threshold of the times is judged, a step S3 is executed when the times are smaller than or equal to the lower threshold of the times, a step S4 is executed when the times are larger than the lower threshold of the times and smaller than the upper threshold of the times, and a step S5 is executed when the times are larger than or equal to the upper threshold of the times; step S4, the continuous infusion amount keeps a current value; step S5, the current continuous infusion amount is progressively increased once according to a preset second dosage. According to the method, the continuous infusion amount can be adjusted according to PCA activation operation of a patient, so that the defect of excessive analgesia or insufficient analgesia is overcome, and the method is safer and more convenient.

Description

technical field [0001] The invention relates to a method and system for automatically adjusting PCA infusion parameters of an electronic infusion pump. Background technique [0002] When the electronic infusion pump is used to infuse analgesic drugs, if the parameter setting is unreasonable (too large), it may cause infusion reactions such as nausea and vomiting, excessive sedation, etc. due to excessive infusion. [0003] At present, electronic infusion pumps used for infusion of analgesic drugs generally have the function of PCA (Patient Controlled Analgesia, patient-controlled analgesia), which is only activated by the patient when the patient feels pain. Injected bolus) infusion, used to relieve insufficient analgesia caused by individual differences. [0004] This function has certain limitations, that is, the patient will only deactivate when the blood concentration maintained by the continuous volume infusion of the electronic infusion pump is not enough to suppress ...

AI Technical Summary

Problems solved by technology

[0004] This function has certain limitations, that is, the patient will only deactivate when the blood concentration maintained by the continuous volume infusion of the electronic infusion pump is not enough to suppress the pain

If the initial continuous infusion volume setting value is too large, the blood drug concentration will exceed the pain-inhibiting level, which may cause excessive analgesia. At this time, the patient will not try to activate the PCA component. This may cause the patient to have an infusion reaction. In severe cases life threatening

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