A precise quantitative infusion device

Abstract

The invention provides an accurate and quantitative infusion device. The accurate and quantitative infusion device can be matched with the existing infusion devices such as a medicine liquid needle, an intravenous needle and an infusion pipeline for use, so that the drip velocity of the medicine liquid can be accurately controlled. The accurate and quantitative infusion device comprises a medicine liquid guide-in part and a medicine liquid guide-out part, and a drip velocity regulator is connected between the guide-in part and the guide-out part; the drip velocity regulator comprises a static plate and a rotation plate which are overlapped together, a through hole is formed in the static plate, and the rotation plate covers the through hole; the angle of rotation of the rotation plate is controlled, so that the through hole forms medicine liquid through holes with different cross sections, and thus the stepless regulation on the drip velocity is realized. With the adoption of the accurate and quantitative infusion device, the accurate regulation and stepless regulation on the drip injection can be realized, and thus the accurate and quantitative infusion device has the characteristics of being safe and reliable.

Description

technical field [0001] The invention relates to a medical consumable, in particular to a device capable of accurately and quantitatively adjusting the infusion speed. Background technique [0002] The infusion set has been mainly used as medical consumables for intravenous infusion, half of which is composed of intravenous needles, protective caps, infusion hoses, liquid medicine filters, flow rate regulators, drip pots, cork needles, air inlet tubes and air filters. . When in use, under the action of atmospheric pressure, the medicinal liquid in the high medicinal liquid bottle flows into the thinner infusion tube to form a water column. When the water column pressure is greater than the venous pressure, the medicinal liquid in the bottle continuously and steadily flows into the vein to supplement Body fluids, electrolytes or provide nutrients. However, in many cases, the infusion rate of the infusion needs to be adjusted and controlled to suit different groups of people ...

AI Technical Summary

Problems solved by technology

However, in many cases, the infusion rate of the infusion needs to be adjusted and controlled to suit different groups of people and different medicinal solutions / diseases. For example, children, the elderly, and pregnant women have different requirements for the infusion rate. Special care is required in the use of infusion, and the infusion rate is too fast, which is often unbearable to the heart, which may lead to life-threatening

For example, during clinical infusion of oxytocin to pregnant women, it is often necessary to closely observe the fetal heartbeat and uterine contraction. If the uterine contraction of the pregnant woman is obvious and the infusion of oxytocin is too fast, it may cause fetal asphyxia, etc. Complications are more dangerous for pregnant women

In addition, when the high-hanging injection is easy to cause blood backflow due to carelessness of the medical staff or the patient, especially when the liquid medicine is almost finished, the medical staff needs to monitor it all the time, and manual monitoring is easy to fatigue, and the high-hanging injection Inconvenient to use the injection

[0003] Furthermore, the existing flow rate regulator is mainly achieved by squeezing the infusion hose and changing the cross-sectional area of ​​the infusion hose, such as using a clamp stopper to squeeze the hose, but when this method adjusts the infusion rate, due to soft Tubes are prone to deformation and adhesion, and are easy to stick together after being squeezed flat, making timely and accurate adjustment impossible; at the same time, the existing flow rate regulator mainly relies on manual adjustment and human eye observation to judge and grasp, and also there is a big error

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