Infusion pump capable of accurately controlling medicinal liquid flow

Abstract

The infusion pump includes pump body and medicine liquid flow rate controller. The medicine liquid flow rate controller includes stepped switch set on the control panel of the pump body, setting controller connected to the stepped switch and speed regulating motor unit connected with the setting controller. Branching switches are set for raising control precision of the infusion pump.

Description

Technical field: [0001] The invention relates to an instrument for medical infusion, in particular to an infusion pump with adjustable flow accuracy. Background technique: [0002] Due to the objective needs of the patient's specific condition, it is required that in the course of treatment, the amount of intravenous infusion and the speed of infusion per unit time have certain requirements, otherwise it may affect the therapeutic effect and even endanger the patient's life, so it is used for measurement. And instruments for controlling the quantity and speed of infusion per unit time have emerged at the historic moment. At present, medical instruments called "infusion pumps" are commonly used in hospitals, which are used to measure and control the quantity and speed of infusion per unit time. The principle of the existing infusion pump is to squeeze the infusion tube intermittently through the inserting plate, so that the medicinal liquid in the infusion tube passes through...

AI Technical Summary

Problems solved by technology

Due to the permission of the national standards, the inner diameter of the infusion tube can have a size deviation of about 10% on the specified uniform inner diameter standard. In fact, different brands of infusion tubes produced by various manufacturers at home and abroad, because The difference in the manufacturing process, the different materials used and many other reasons have caused the inner diameters of the infusion tubes produced by different manufacturers or different batches of the same manufacturer to be different. Because the inner diameters of the infusion tubes are different, it directly leads to unit The amount of liquid medicine that passes through the infusion pump within a certain period of time is different from the amount objectively controlled by the infusion pump, that is, there is a deviation from the amount of liquid medicine that the patient needs objectively. If the amount of liquid medicine is too small, the therapeutic effect may not be achieved, especially in emergency treatment. When the patient is sick, if the amount of liquid medicine is not enough, the consequences will be serious. Similarly, if the amount of liquid medicine is too much, it is also unwilling or unacceptable to the patient. In severe cases, the body may be overloaded and corresponding symptoms will appear. Worse still, the consequences are unpredictable

[0005] 2. If the infusion tube with the same inner diameter is used, the second main reason for the discrepancy between the amount of infusion per unit time and the amount of medicinal solution required by the patient is the problem of the infusion pump, especially the infusion pump used for squeezing The problem of aging of the inserting piece of the infusion tube

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