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Microporous anti-backflow transfusion apparatus

A blood-return infusion set and micro-hole technology are applied in the field of medical devices, which can solve the problem that blood-return prevention has not yet been discovered.

Inactive Publication Date: 2012-11-14
谢世庚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, few of these patents or products have both automatic exhaust and automatic liquid stop, and those with the function of preventing blood return have not yet been found.

Method used

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  • Microporous anti-backflow transfusion apparatus

Examples

Experimental program
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Effect test

Embodiment 1

[0015] A specific embodiment of the microporous anti-reflux infusion set of the present invention. Such as figure 1 and figure 2 As shown, after the insertion needle (1) is inserted into the liquid medicine bottle or liquid medicine bag, the liquid medicine flows into the drip funnel (2), and the excess gas in the drip funnel is discharged through the exhaust pipe (4) and the exhaust window (3). When the liquid surface closes the exhaust pipe (4), the exhaust stops, and the sealing film (7) also rises with the rise of the buoy (6), so that the upper opening of the two-way pipe (10) is opened, and the liquid medicine passes through the two-way pipe. Inflow down catheter (13) and infusion needle (12) can puncture blood vessel to carry out infusion. If the medicinal liquid has flowed out, the buoy descends, and the sealing membrane (7) also descends thereupon, until the top port is closed, so as to reach automatic liquid stop. At this time, the residual liquid in the dripping...

Embodiment 2

[0017] A specific embodiment of a microporous anti-reflection infusion set according to the present invention, its main structure is the same as that of Example 1, the difference is that the anti-bleeding only has the anti-bleeding micropores. When the medicinal liquid flows through the sealing film (7) and the residual liquid in the upper drop funnel (2) of the closed two-way pipe (10) flows into the two-way pipe (10) and the downcomer (13) through the anti-blood return micropore, this The method is simpler without threading the flow line.

Embodiment 3

[0019] A specific embodiment of a microporous anti-return blood infusion set according to the present invention, its main structure is the same as that of Example 1, the difference is that only the drainage line maintains a small amount of infusion. When the medicinal liquid flows through the sealing film (7) to close the upper opening of the two-way tube (10), since the sealing film (7) has no anti-blood return micropores, only the drainage line (9) of the two-way tube (10) is drained, and the process ratio is 1 Simple, the drainage line attracts fluid to flow into the downcomer (13) through the two-way pipe (10), and the fluid suction effect of the drainage line (9) is more stable.

[0020] Completely sealing the lower catheter can achieve hemostasis, but due to the venous pressure of the human body, blood return and thrombus will inevitably occur, so a small amount of continuous infusion must be maintained to prevent blood return. Automatic hemostasis cannot prevent hemorrha...

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Abstract

The invention relates to a microporous anti-backflow transfusion apparatus, belonging to the field of medical appliances. The microporous anti-backflow transfusion apparatus comprises a bottle insertion needle, a dropping funnel, a guide tube and a transfusion needle, wherein a bipass is arranged in the dropping funnel; the lower end of the bipass is communicated with a lower guide tube, and the upper end is open; the tube wall penetrates through a guide line; a floater is arranged in the dropping funnel, and provided with a locating pin fixed on the bottom of the floater; the locating pin penetrates through the center of a closing membrane; the closing membrane is provided with an anti-backflow micropore; and the wall of the dropping funnel is provided with an exhaust window capable of implement automatic exhausting. After the liquor runs out, the closing membrane automatically closes the upper opening of the bipass, thereby achieving the goal of automatic liquor stop; and the anti-backflow micropore and the guide line suck the residual liquor into the bipass and the lower guide tube to maintain very slow and trace transfusion, thereby performing the anti-backflow function.

Description

technical field [0001] The invention relates to the category of medical equipment, and relates to a microporous anti-reflux transfusion device. technical background [0002] Exhaust is difficult in the existing infusion set, and the gas enters the downcomer when the medicine bottle is not replaced in time during the infusion, and the problems such as blood backflow into the infusion set have not been effectively solved. Difficulty in exhausting not only increases the workload of the operator, but also is one of the unsafe factors in the infusion process. In order to prevent the medicinal liquid from flowing out, air enters the downcomer, and the medicinal bottle is often changed when there is still a certain residual liquid in the medicinal bottle, resulting in a waste of medicinal liquid. If the air in the liquid medicine bottle cannot be replaced in time and enters the downcomer, it will not be difficult to get rid of, and the phenomenon of blood return will occur, the pa...

Claims

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Application Information

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IPC IPC(8): A61M5/14A61M5/40
Inventor 谢世庚
Owner 谢世庚
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