A continuous infusion device with automatic exhaust function

Abstract

The invention relates to a continuous infusion apparatus with the automatic air exhaust function. The continuous infusion apparatus comprises an infusion apparatus upper part (1), an infusion apparatus middle part (2) and an infusion apparatus lower part (3), wherein the infusion apparatus upper part (1), the infusion apparatus middle part (2) and the infusion apparatus lower part (3) are connected in sequence. The continuous infusion apparatus is characterized in that the infusion apparatus middle part (2) comprises a regulating drip tube (21), and the regulating drip tube (21) comprises an infusion controller (4) and a drip tube body (5). With the continuous infusion apparatus with the automatic air exhaust function, on one hand, the problem that during the infusion process adopting a plurality of infusion bottles, the infusion bottles need to be replaced manually and frequently is solved, so that abundant time and effort of medical staff are saved, on the other hand, the undesirable phenomena that the liquid medicine is wasted, the connecting hole is infected, blood returns, air enters the human body, and the like are avoided, and thus the psychological burden of patients and the medical staff is greatly alleviated.

Description

technical field [0001] The invention relates to the medical field, in particular to a continuous infusion set with an automatic exhaust function. [0002] technical background [0003] Infusion sets are commonly used medical devices for intravenous injection, such as figure 1 As shown, the infusion set is generally composed of a bottle stopper piercer protective cover, a bottle stopper piercer, an air filter, a water stop clip, a Murphy's dropper, a long infusion catheter, a flow regulating device, a liquid medicine filter, and a conical joint. The infusion set usually has only one infusion channel, the upper end is connected with the infusion bottle, and the lower end is used in conjunction with the intravenous infusion needle, and is mainly used for clinical gravity infusion. When intravenous clinical infusion is actually used, it is usually a continuous infusion of multiple infusion bottles. Due to the different mechanisms of action of drugs and the mutual interference be...

AI Technical Summary

Problems solved by technology

The process is very cumbersome and time-consuming, and when the squeezing action is slightly careless, a large number of small air bubbles will be attached to the inner wall of the infusion tube on the lower side of the infusion set Mufei's dropper. In order to discharge these air bubbles, the medical staff need to use their fingers The process of flicking the tube wall of the infusion set is very cumbersome and the effect is not ideal

2. When multiple bottles of liquid infusion are infused continuously, it is necessary to manually replace the infusion bottle after each bottle of liquid medicine is infused

On the one hand, since medical staff often need to take care of infusion patients in multiple wards, it takes a lot of time for medical staff to manually replace the infusion bottle, resulting in unnecessary waste of energy; on the other hand, if the infusion liquid level is low when changing the infusion bottle If the lower part of the muffi's dropper is used, it is necessary to re-air or re-inject the IV: if the liquid level is only a short distance below the dropper, the infusion tube is usually wound around the finger from the bottom up to squeeze out the air gradually; if If the liquid level is much lower than the dropper, the conical joint needs to be opened to discharge the air from the lower end, but this process will inevitably cause waste of the liquid medicine, and at the same time, it is easy to cause infection of the interface and a small amount of air entering the human body through the infusion needle

The method of expelling air from the outside of the infusion set by squeezing the wall of the infusion tube will also cause damage to the infusion tube. The damaged infusion tube will affect the infusion performance of the infusion set, thereby reducing the reliability of the infusion set, and in severe cases, it will cause infusion accidents.

Therefore, in order to prevent the liquid level from falling below the Murphy's dropper, medical staff, patients and family members need to take care in real time, causing unnecessary tension and psychological burden on the three

3. The current clinical intravenous infusion cannot automatically stop the infusion

At the end of the infusion, if the medical staff does not take care of it in time, the liquid level will drop too low, which will cause blood back phenomenon, and in severe cases, the gas will enter the human body and cause gas embolism and other adverse consequences

4. For blood transfusion or precious liquid medicine, manual confirmation before transfusion and cleaning after transfusion are required

These two processes need to be completed manually by medical staff, which is very troublesome and time-consuming.

5. The current clinical intravenous infusion requires manual adjustment of the infusion speed

The infusion speed is determined according to the patient's age, condition, and the nature of the drug. Improper setting of the infusion speed may cause heart failure or other serious consequences, or even cause medical accidents.

At present, the infusion speed is mainly adjusted by manual observation of the flow rate of the Murphy dropper through manual adjustment of the flow regulating device. There are the following problems: First, the flow rate setting of the Murphy dropper cannot be completely correct only by observing the flow rate of the Murphy dropper, and is subject to the supervision of medical staff. Personal ability and other objective conditions; second, under such conditions, not only the medical staff can adjust, but also the patients and their family members and accompanying personnel. According to the survey, 38.88% of the infusions are too fast.

[0004] Aiming at the continuous infusion of multiple bottles, the patent titled "Pressure Differential Nursing-free Automatic Bottle-changing Infusion Set and Monitoring System" (application number: CN103705998A) was announced, and its main defects are: 1. It can only realize continuous infusion of multiple bottles The continuous infusion in the case of the infusion reduces the workload of the medical staff to replace the infusion bottle, and does not involve the problems of automatic exhaust, automatic stop of the infusion and prevention of residual liquid in the tube; On the one hand, it will put forward great requirements on the infusion space, on the other hand, when multiple bottles are continuously infused, due to the limited height from the patient to the medical staff, it will be difficult for the nurses to hang the infusion bottles; 3. Adopt buoyancy valve Different suspension heights cause multiple buoyancy valves to generate pressure differences, which also makes it difficult for infusion space and nurses to hang infusion bottles; The structure is complex, affected by the layout of the infusion set and the arrangement of the infusion bottle, there is a problem of reliability. Reliability is very important for the infusion set. If the continuous infusion of the infusion bottle does not enter the infusion set in time, there will be a section of air in the middle, which will cause larger accident

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