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Infusion set that prevents air entry into infusion tubing

A technology of infusion sets and infusion tubes, which is applied in the field of infusion sets and can solve the problems of inconvenient extrusion or suction for medical staff

Inactive Publication Date: 2015-01-14
WELFORD MFG M
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These squeezing or sucking actions are inconvenient for medical personnel

Method used

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  • Infusion set that prevents air entry into infusion tubing
  • Infusion set that prevents air entry into infusion tubing

Examples

Experimental program
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Embodiment Construction

[0029] Such as figure 1 As shown, the infusion set 10 includes a drip chamber 20, the upper end of the drip chamber 20 has a needle 30 and a hydrophilic membrane 21 at the lower end, and an infusion tube 40 with a length sufficient to connect the lower end of the drip chamber 20 to a standard connector 70, The rolling clip 60 is located between the drip chamber 20 and the standard connector 70 , and the paper clip 50 is located between the drip chamber 20 and the rolling clip 60 along the length of the infusion tube 40 .

[0030] Such as figure 1, the infusion tube 40 is connected to the drip chamber 20. On the patient end of the tubing, a standard connector 70 is provided so that a needle or catheter can be connected to the patient. A flow rate adjustment device in the form of a rolling clamp 60 is provided on the infusion tube. The rolling clamp 60 can be slowly adjusted so that the infusion tube can be compressed proportionally to change the infusion rate.

[0031] Such...

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PUM

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Abstract

The present invention relates to an infusion set (10) that provides for continuous air free delivery of liquid to patients undergoing infusion procedures. In particular, the invention provides for an infusion set (10) that prevents air entering the infusion tubing (40) through the drip chamber (20) by using a hydrophilic membrane (21) having a defined wetting time and a defined mean pore size that will provide a defined bubble pressure point under gravitational pull to permit continuous air free infusion liquid flow there-through. The invention further provides for a clip (50) that once closed, no air bubble is able to pass through the hydrophilic membrane (21) due to the adjustment of the roller clamp (60) along the infusion tubing (40) thereby ensuring safe replacement of the infusion bottle during multiple infusion procedures, thus preventing the occurrence of air embolism in patients especially when the drip chamber (20) is empty.

Description

technical field [0001] The present invention relates to an infusion set for providing continuous airless delivery of liquid to a patient during an infusion. In particular, the present invention provides an infusion set that prevents gas from entering the infusion tube through the drip chamber by using a hydrophilic membrane having a specific wetting time and a specific average pore size, wherein the hydrophilic membrane is under the action of gravity A certain pressure point of air bubbles is generated under the pressure point to promote continuous airless infusion flow. The present invention further provides a paper clip that once closed, no air bubbles will pass through the hydrophilic film due to the adjustment of the rolling clamp along the direction of the infusion tube, thereby ensuring the replacement of the infusion bottle during multiple infusions, especially in the drop chamber. When empty, gas embolism is prevented from occurring in the patient. Background techni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/38
CPCA61M5/1411A61M5/38A61M5/16813A61M5/162
Inventor 黄天福黄纹维
Owner WELFORD MFG M
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