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Medical infusion device

An infusion device and liquid storage box technology, applied in the field of medical devices, can solve the problems of rapid drug solution, patient discomfort, and inability to drip at a uniform speed, and achieve the effects of small liquid level changes, reduced complexity, and easy replacement

Inactive Publication Date: 2015-01-21
谢安军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: in the initial period of time in the existing infusion set, the liquid medicine is always dripped very quickly, which cannot be dripped at a uniform speed and is likely to bring discomfort to the patient's body; and when the infusion speed is fast, It is also prone to the phenomenon that the liquid medicine cannot be dripped at a uniform speed

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 Shown: a medical infusion device, including a liquid storage box, a partition, an air guide tube 3, a liquid level sensor, an air intake valve, a motor, and a controller; the partition divides the liquid storage box into a left chamber and a right chamber; The volume of the chamber is greater than that of the right chamber; the bottom of the partition is provided with a communicating hole 4;

[0023] The air guide tube 3 is funnel-shaped, one end with a larger opening is located at the bottom of the left chamber, and the other end is located outside the top of the left chamber; the port of the air guide tube 3 located outside the top of the left chamber is provided with an air inlet valve ; The liquid level sensor is arranged in the middle of the inner surface of the side wall of the right chamber;

[0024] The signal detected by the liquid level sensor 11 is input to the controller, and the controller controls the motor to open or close the intake val...

Embodiment 2

[0027] Embodiment 2: On the basis of Embodiment 1, the controller adopts AT89S51 single-chip microcomputer.

Embodiment 3

[0028] Embodiment 3: On the basis of embodiment 1, the volume of the left chamber is 800 milliliters, and the volume of the right chamber is 10 ml.

[0029] The working principle of the present invention: after adding liquid medicine to the left chamber, the liquid medicine in the right chamber will submerge the liquid level sensor. Since the volume of the right chamber is very small, the liquid level will soon be equal to that of the liquid level sensor in the right chamber. Once the liquid level is lower than the height of the liquid level sensor, the controller controls the intake valve so that the air quickly enters the left chamber through the air duct, the pressure at the bottom of the left chamber will increase, and the liquid in the left chamber will Enter the right chamber through the communication hole, and then the liquid level in the right chamber is equal to the liquid level sensor again, so the liquid level in the right chamber is almost constant all the time, so ...

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Abstract

The invention discloses a medical infusion device which comprises a liquid medicine storage box body, a partition plate, an air guide pipe, a liquid level sensor, an air inlet valve, a motor and a controller. The partition plate divides the liquid medicine storage box body into a left cavity and a right cavity. The volume of the left cavity is larger than that of the right cavity. A communicating hole is formed in the bottom of the partition plate. The air guide pipe is in a hopper shape, the end with the large opening is located at the bottom of the left cavity, and the other end is located outside the top of the left cavity. A liquid medicine feeding hole is formed in the top of the left cavity. A detachable plug is arranged in the liquid medicine feeding hole. An air inlet hole is formed in the top of the right cavity. An infusion hole is formed in the bottom of the right cavity. A rubber plug is arranged in the infusion hole. The medical infusion device further comprises a bottle stopper puncture device, a dripping bucket, a flow speed adjuster, a liquid medicine filter, an infusion hose and a vein needle. Medicine liquid can stably drip at uniform speed through the medical infusion device no matter how high the infusion speed is.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a medical transfusion device. Background technique [0002] The medical infusion bottle is a bottle of liquid that is used for infusion in the human body when the patient is infused. The infusion set is a common disposable medical consumable that is used for intravenous infusion after aseptic treatment to establish a channel between the vein and the liquid medicine. Generally, it is composed of a venous needle, a protective cap, an infusion hose, a liquid medicine filter, a flow rate regulator, a drip funnel, a cork puncturer, an air inlet pipe, and an air filter connection. Under the action of atmospheric pressure, the liquid in the infusion bottle flows into the drip funnel along the thinner infusion hose, and when the water column pressure in the drip funnel is greater than the venous pressure, the liquid in the bottle flows into the vein along the hose. Before u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/14A61M5/168A61M5/158
CPCA61M5/14A61M5/16822
Inventor 谢安军
Owner 谢安军
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