Four-way valve capable of rapidly switching infusion channels for pump

Abstract

A four-way valve for rapidly switching infusion channels for a pump is characterized in that the four-way valve comprises a valve body and a valve element, the valve body comprises a first liquid inlet pipe, a second liquid inlet pipe, a liquid outlet pipe and an observation pipe which are arranged in a cross shape, and a first valve element channel and a second valve element channel which are independent of each other are arranged in the valve element; a first valve element channel indicating line and a second valve element channel indicating line are arranged at the top of the valve element and correspond to the communicating directions of the first valve element channel and the second valve element channel respectively, any two adjacent pipe openings can be communicated through rotating the valve element, the first valve element channel and the second valve element channel, and the valve element is rotated by 90 degrees to complete rapid switching of the infusion channels for the pump. The utility model provides the four-way valve for rapidly switching the infusion channel for the pump, so that continuous and stable input of medicines is ensured, the problems of interruption or fast forward of the medicines caused by machine reasons and human reasons when the medicines are replaced after the medicines are pumped are solved, and the vital signs of a patient are ensured not to obviously fluctuate when the medicines are replaced after the medicines are pumped.

Description

Technical Field

[0001] This utility model relates to the field of medical infusion, and in particular to a four-way valve for quickly switching the infusion channel of a pump. Background Technology

[0002] During treatment, patients often need to use drugs such as adrenaline, norepinephrine, isoproterenol, dopamine, and esmolol to maintain stable vital signs, especially ICU patients and patients undergoing anesthesia and surgery. These drugs need to be continuously and stably infused into the patient's body. Clinically, micro-infusion pumps or infusion pumps are often used for infusion. When the drug infusion is finished, the empty syringe needs to be removed and replaced with a new drug. Interruption of drug infusion may occur midway, or the drug infusion may be interrupted or fastened due to machine or human error.

[0003] To ensure a continuous and stable infusion of medication into the patient's body, a four-way valve that can quickly switch the infusion channel of the pump is needed to reduce interruptions in the medication infusion or rapid drug delivery due to machine or human error when changing medications, and to ensure that the patient's vital signs do not fluctuate significantly when changing medications after the pump runs out. Utility Model Content

[0004] The purpose of this invention is to provide a four-way valve for quickly switching the infusion channel of a pump, in order to solve problems such as interruption of drug pumping or rapid drug flow due to machine or human error when changing drugs after the drug pump is finished.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A four-way valve for quickly switching infusion channels in a pump includes a valve body and a valve core. The valve body includes a first inlet pipe, a second inlet pipe, an outlet pipe, and an observation pipe arranged in a cross shape. The observation pipe is connected to a hollow nut. The valve core has a first valve core channel and a second valve core channel inside. The top of the valve core has a first valve core channel indicator line and a second valve core channel indicator line, which correspond to the directions of the first and second valve core channels, respectively. When the drug is about to be pumped out through the second inlet pipe and the outlet pipe, the same drug is pumped in through the first inlet pipe and the observation pipe. When a continuous and stable flow of drug is observed in the observation pipe, the valve core is rotated 90 degrees. At this time, the first inlet and the outlet are connected, completing the rapid switching of the infusion channels in the pump.

[0007] The upper part of the valve core has a "cross" shaped valve core adjusting rod, which is used to rotate the valve core.

[0008] The first valve core channel and the second valve core channel are independent of each other.

[0009] By rotating the valve core, both the first valve core channel and the second valve core channel can connect any two adjacent ports on the valve body.

[0010] The pump's infusion channel can be quickly switched by rotating the valve core 90 degrees clockwise or counterclockwise. Attached Figure Description

[0011] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the prior art description will be briefly introduced below.

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0014] Figure 3 , Figure 4 This is a schematic diagram illustrating the working principle of this utility model.

[0015] The following are the annotations in the figure: 1. Valve body; 2. Valve core; 3. First inlet pipe; 4. Second inlet pipe; 5. Observation pipe; 6. Outlet pipe; 7. First valve core channel indicator line; 8. Second valve core channel indicator line; 9. First inlet pipe nut; 10. Second inlet pipe nut; 11. Hollow nut; 12. Outlet pipe cap; 13. First valve core channel; 14. Second valve core channel. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. In the description of this utility model, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] like Figure 1 , Figure 2 As shown, this utility model discloses a four-way valve for quickly switching the infusion channel of a pump, including a valve body 1 and a valve core 2. The valve body 1 includes a first inlet pipe 3, a second inlet pipe 4, an observation pipe 5, and an outlet pipe 6 arranged in a "cross" shape. The observation pipe 5 is connected to a hollow nut 11. The valve core 2 is provided with a first valve core channel 13 and a second valve core channel 14. The top of the valve core 2 is provided with a first valve core channel indicator line 7 and a second valve core channel indicator line 8, which correspond to the directions of the first valve core channel 13 and the second valve core channel 14, respectively.

[0018] like Figure 3 , Figure 4As shown, when the drug is about to be pumped out through the second inlet pipe 4 and outlet pipe 6, the same drug is pumped in through the first inlet pipe 3 and observation pipe 5. When it is observed that the drug is continuously and stably flowing out of the observation pipe 5, the valve core is rotated 90 degrees. At this time, the first inlet pipe 3 and outlet pipe 6 are connected, and the pump infusion channel is quickly switched.

[0019] The advantages of this invention are: during clinical infusion, this invention can ensure that the drug is continuously and stably delivered to the patient's body, reduce the interruption of drug pumping or drug fast-forwarding caused by machine or human factors when changing drugs, and ensure that the patient's vital signs will not fluctuate significantly when changing drugs after the drug pumping is finished.

[0020] The above description is only used to illustrate the technical solution of this utility model, and not to limit it. Those skilled in the art should understand that they can still modify the technical solution of this utility model or make equivalent substitutions for some of its technical features, and these modifications or substitutions do not cause the essence of the corresponding technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A four-way valve for quickly switching the infusion channel of a pump, characterized in that: The device includes a valve body and a valve core. The valve body includes a first inlet pipe, a second inlet pipe, an outlet pipe, and an observation pipe arranged in a cross shape. The valve core has a first valve core channel and a second valve core channel inside. The first valve core channel and the second valve core channel are independent of each other. By rotating the valve core, any two adjacent ports of the first valve core channel and the second valve core channel can be connected. The observation pipe is connected to a hollow nut for observing the outflow of the liquid. The top of the valve core is provided with a first valve core channel indicator line and a second valve core channel indicator line, which correspond to the directions connected by the first valve core channel and the second valve core channel, respectively.

2. The four-way valve for quickly switching the infusion channel of a pump according to claim 1, characterized in that: The pump's infusion channel can be quickly switched by rotating the valve core 90 degrees clockwise or counterclockwise.

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