Bubble-free transfusion system

An infusion set, a technology without air bubbles, applied in the direction of subcutaneous injection devices, devices introduced into the body, etc., can solve the problems of low stability of exhaust, unfavorable for emergency infusion and rescue of critically ill patients, time-consuming and other problems

Active Publication Date: 2010-07-21
JIANGXI HONGDA MEDICAL EQUIP GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These manual methods are time-consuming, and the stability of the exhaust is not high

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0018] The present invention comprises a bottle stopper puncturer 1, an air filter 2, an infusion catheter 3, an upper dropper 4, a drip funnel 5, an anti-bubble dripping device 7, a flow regulator 9, a liquid medicine filter 10 and a disposable intravenous infusion Composed of a needle 11, the integrated anti-bubble dripping device 7 is composed of an upper dropper body 12, a middle dropper body fixing seat 14 and a lower dropper body connecting conduit 15, and the dropper body fixing seat 14 is fixed on the dropping funnel 5 at the lower end of the dropper mouth 8, the dropper body fixing seat 14 and the dropper 5 together form a closed dropper chamber 6, and the dropper body connecting conduit 15 outside the dropper 5 is connected to the liquid inlet end of the flow regulator 9 ; In the dropper body 12 in the dropper cavity 6, two vertical liquid inlet pipes 18 and balance pipes 21 that are separated from each other and whose upper ends are closed are processed, and the lowe...

Embodiment 2

[0024] The structure of embodiment 2 is basically the same as embodiment 1, the difference is:

[0025] The liquid inlet needle 19 is integrally injection molded in the liquid inlet pipe 18 with a large top and a small bottom, and the air pressure balance needle 20 is integrally injection molded in a balance pipe 21 with a large top and a small bottom, thereby reducing the production cycle and production cost.

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PUM

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Abstract

The invention discloses a bubble-free transfusion system, which comprises a bottle stopper puncture outfit, an air filter, a drip hopper, a flow regulator, a disposable intravenous needle and the like and is characterized in that an anti-bubble liquid dropping device consists of a dropper body, a dropper body holder and a dropper body connecting conduit. In the normal transfusion process, the anti-bubble liquid dropping device makes the pressure in the drip hopper and the external air pressure reach a critical balance state, and simultaneously, height differential pressure is formed between a liquid inlet hole on the dropper body and the top end of a liquid inlet needle, so gas and liquid can not flow out simultaneously, which ensures that no bubble exists in the transfusion process. The invention has the following advantages: 1 the bubble removing performance is stabler; 2 the drip hopper does not need to be extruded in the use process; 3 the entire transfusion operation step is simple without any additional steps; 4 no liquid medicine is left in the drip hopper when transfusion is ended; and 5 the bubble-free transfusion system is very favorable for rapid transfusion in an emergency state and strives for time for rescuing serious patients.

Description

technical field [0001] The invention relates to a disposable medical device, in particular to a bubble-free infusion set. Background technique [0002] At present, the common infusion sets commonly used in the medical field are all composed of bottle stopper piercers, air filters, upper droppers, drip funnels, flow regulators, infusion catheters, liquid medicine filters and disposable intravenous infusion needles. Ordinary infusion set, at the beginning of the infusion, when the liquid medicine enters the dripping funnel, due to the dual influence of gravity and pressure on the liquid medicine, it is very easy to form a gas-liquid mixture of gas and liquid medicine, and the gas-liquid mixture will quickly enter the bottom of the dripping funnel at the same time. In the infusion catheter, air bubbles are formed during infusion. At the same time, due to the surface tension of the tiny bubbles in the infusion catheter, these tiny bubbles will be adsorbed on the inner wall of t...

Claims

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Application Information

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IPC IPC(8): A61M5/14A61M5/36
Inventor 田军
Owner JIANGXI HONGDA MEDICAL EQUIP GROUP
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