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Precise automatic liquid-stopping blood-return-proof infusion device

A blood-return infusion device and automatic technology are applied in the field of medical devices, which can solve the problems of difficulty in opening the valve when changing bottles, troublesome operation, etc., and achieve the effect of preventing back-flow and preventing blood-return.

Active Publication Date: 2015-01-14
JIANGXI LIHUA XINLANG PHARMA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some infusion sets are equipped with self-closing valves of various styles at the mouth of the drip funnel. Although the liquid preservation can be automatically closed after the liquid medicine is infused, it is difficult to open the valve when changing the bottle, and the operation is troublesome.

Method used

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  • Precise automatic liquid-stopping blood-return-proof infusion device
  • Precise automatic liquid-stopping blood-return-proof infusion device

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Embodiment Construction

[0011] The invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0012] Such as figure 1 , 2 As shown, the precision automatic anti-liquid infusion device proposed by the present invention includes an infusion tube 1 and a flow regulator 2 sleeved on the infusion tube. Connector 5 and infusion needle 6, compared with the traditional technology, the improvement of the present invention is that an automatic liquid stop valve is arranged in the drip funnel 4, and the automatic liquid stop valve includes a valve body 7 and an automatic liquid stop layer 8, and the valve body 7 is installed on The lower part of the drip funnel 4, and the valve wall of the valve body 7 has a strip opening 71 for the circulation of dripping liquid, and the bottom of the valve body 7 is also provided with a cylindrical boss 72 that matches the infusion tube protrusion; The automatic liquid stop layer 8 is sealed and fixed on the upper surface of...

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Abstract

The invention discloses a precise automatic liquid-stopping blood-return-proof infusion device which comprises an infusion tube, a flow adjuster, a puncture device, a drip bucket, a Luer taper and an infusion needle, wherein an automatic liquid-stopping valve is arranged in the drip bucket and a precise filtering film is used for automatically stopping liquid. When the liquid is completely infused, the liquid can be automatically stopped under the effect of the hydrophily of the precise filtering film; the negative phenomenon, such as blood return, is avoided by an anti-reflux valve; the safety during the infusion process is ensured.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a precision automatic liquid-stopping and blood-reflux preventing infusion set. Background technique [0002] At present, the medical disposable infusion set used for infusion, such as the blood will flow back when the liquid is infused, and it is dangerous not to vent the gas when changing the bottle, but it is very troublesome to exhaust the gas. Some infusion sets are equipped with self-closing valves of various styles at the mouth of the drip funnel. Although the liquid preservation can be automatically closed after the liquid medicine has been transfused, it is difficult to open the valve when changing bottles, and the operation is troublesome. The average diameter of capillaries in the human body is only 7 μm to 9 μm, and the smallest is 4 μm. If the liquid is infused frequently, particles with a diameter of more than 4 μm in the liquid will accumulate in capillaries such as...

Claims

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Application Information

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IPC IPC(8): A61M5/14A61M5/38
CPCA61M5/38A61M5/40A61M2005/1406
Inventor 钭祖青
Owner JIANGXI LIHUA XINLANG PHARMA TECH
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