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Backflow prevention infusion tube

A technology of anti-backflow and infusion tubes, which is applied in the field of infusion sets, can solve the problems that infusion sets cannot prevent blood return, and achieve the effects of avoiding medical disputes, relieving pain, and preventing blood return.

Inactive Publication Date: 2014-01-15
SUZHOU YASI PRECISION MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention proposes an anti-reflux infusion tube, which solves the problem that the infusion set in the prior art cannot prevent blood backflow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, an anti-reflux infusion tube includes a piercer 1, a dripping funnel 2, a flow regulator 3, a dosing tee 4, a needle seat 8, a coupler 9, a male screw 10, a female screw 11, and an injection needle 5 And the pipeline 6, the pipeline 6 is provided with an anti-reflux membrane 7, the anti-reflux membrane 7 is an arc-shaped structure with arc-shaped protrusions facing the flow direction of the infusion liquid.

[0024] Such as Figure 4 , Figure 5 As shown, the arc-shaped protrusion of the anti-backflow film 7 is provided with a cross-shaped scratch. The anti-backflow membrane 7 is preferably made of elastic materials such as silica gel.

Embodiment 2

[0026] Such as figure 2 As shown, the difference from the structure of Embodiment 1 is that: the anti-backflow film 7 is set in the dropping funnel 2, and the cutout is a straight cutout. Other structures are the same as those in Embodiment 1, and will not be repeated here.

Embodiment 3

[0028] Such as image 3 As shown, the difference from the structure of Embodiment 1 and Embodiment 2 is that: the anti-reflux membrane 7 is arranged in the needle seat 8, close to the injection needle 5, which can most effectively avoid the waste of liquid medicine. Other structures are the same as those in Embodiment 1 and Embodiment 2, and will not be repeated here.

[0029] When the present invention is in use, due to the pressure of the liquid, the cross slit of the anti-backflow membrane 7 is opened to allow the liquid to circulate; when the liquid medicine is dripped, the air pressure is not enough to open the cross slit, and the pressure in the human body cannot make the anti-backflow The cross-shaped slit of the membrane 7 is opened in reverse, avoiding the occurrence of blood back phenomenon, there is no risk of causing great harm to the patient's personal health, and doctor-patient disputes are avoided.

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Abstract

The invention provides a backflow prevention infusion tube which comprises a puncture outfit, a drip chamber, a flow regulator, a medicating tee-joint, a needle base, an injection needle and a pipeline. A backflow prevention film is arranged on the infusion tube, the backflow prevention film is of a circular-arc structure, and an arc-shaped protrusion faces towards the flowing direction of injection fluid, and a cross-shaped seam is formed in the arc-shaped protrusion of the backflow prevention film. The backflow prevention film is adopted in the blood return prevention device, the structure is reasonable, and the purpose of blood return prevention is achieved; in addition, the blood return prevention effect is good, medical safety is guaranteed, pains of patients are alleviated, and unnecessary medical disputes can be avoided; the backflow prevention film is arranged in the needle base, and waste of medical liquid is avoided.

Description

technical field [0001] The invention relates to an infusion set, in particular to an anti-reflux infusion tube. Background technique [0002] Infusion sets are widely used in patients with slow infusion therapy or during surgery. In the existing general infusion sets, blood backflow often occurs because the bottle is not replaced or the needle is pulled out after the liquid is delivered. Because the blood is in the pipeline, the coagulation mechanism will be activated quickly, resulting in thrombus formation, pipeline blockage, and even serious medical accidents such as iatrogenic infection and sepsis, which increase the suffering of patients and cause unnecessary medical disputes. Although some existing infusion sets are also equipped with anti-bleeding devices, this type of infusion set is either complicated in structure and high in cost, or has a poor anti-bleeding effect, and the practicability cannot reach the ideal effect. Contents of the invention [0003] The inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/14
Inventor 胡文忠
Owner SUZHOU YASI PRECISION MOLD
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