Closed loop muscle relaxation iatrical effect monitoring and injecting method and closed loop muscle relaxation injecting device

Abstract

The invention discloses a closed loop muscle relaxation iatrical effect monitoring and injecting method and a closed loop muscle relaxation injecting device. The method comprises the specific steps of: acquiring muscle myoelectricity feedback actions of a patient through an independently developed muscle relaxation monitoring piezoelectric inductor and operating to obtain a muscle relaxation monitoring data TOF (turnover of frequency) value; and controlling a stepper motor to operate at a specified speed so as to push an injector to administrate medicine at a set speed by using the TOF value as a feedback data base and by a microprocessor by combining a built-in muscle relaxation administration method. The scheme can monitor the muscle relaxation state of a patient in real time, objectively reflect the true iatrical effect condition of the muscle relaxant in the human body and display the TOF value of a muscle relaxation feedback value, and meanwhile, an injection system can automatically administrate the muscle relaxant in the whole course according to the TOF value. Moreover, artificial interventions are not needed, and the automatic administrated dosage and the method are obtained through a large quantity of population parameters. The invention ends the times of fuzzy muscle relaxant administration and can scientifically improve the controllability of the muscle relaxant, avoid medicine deficiency or excess and improve the operation quality.

Description

technical field [0001] The present invention relates to the improvement of muscle relaxant drug effect monitoring and muscle relaxant drug administration, and more specifically relates to a closed-loop muscle relaxant drug effect monitoring and injection method and a closed-loop muscle relaxant injection device. Background technique [0002] During the clinical general anesthesia operation, it is necessary to inject the appropriate muscle relaxant to the patient to ensure the smooth progress of the operation, including ventilator intubation before the operation, and extubation at the end of the operation. There are certain requirements for the patient's muscle relaxation. of. The efficacy of muscle relaxants has great individual differences for different patients. The current dosage and administration time of muscle relaxants are all based on the personal experience and subjective judgment of the anesthetist. Due to the relatively large individual differences in its drug e...

AI Technical Summary

Problems solved by technology

Due to the relatively large individual differences in its drug efficacy, its dosage and timing are not easy to grasp, and it is relatively easy to cause underdose or overdose

For long-term operations, anesthesiologists have to repeatedly judge the state of muscle relaxation, determine the timing and dosage of medication, which is not a small workload for anesthesiologists

At present, the existing muscle relaxation detectors are only independent detection instruments, and anesthesiologists need to observe and judge the data before manually administering the drug.

[0003] In addition, the current independent muscle relaxation monitor monitors acceleration or pressure grip. When using these two methods, the hand must be fixed for accurate monitoring.

This method will be subject to many limitations in actual clinical use: for example, many operations will choose lateral or prone positions according to needs, so that the acceleration method cannot be used

Such limitations also make it difficult for current muscle relaxation monitors to be widely used.

[0004] Although there have also been literatures that have proposed that the muscle relaxation parameters measured by the pressure grip method be transmitted to the computer to control an independent injection pump to realize the automatic control of drug delivery by the injection pump, the system is too large (involving muscle relaxation monitoring). modules, desktop computers, independent syringe pumps, etc.), so far there is still no product that can accurately monitor the efficacy of closed-loop muscle relaxation and inject it into the clinical use of the operating room

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