Automatic liquid-stopping type infusion apparatus

An infusion set and stop fluid technology, applied in the field of medical devices, can solve problems such as potential safety hazards, air bubbles easily entering the human body, and blood return

Inactive Publication Date: 2014-01-15
丘梅丽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Infusion sets have been widely used clinically. At the end of each bottle of liquid infusion with conventional infusion sets, if the infusion bottle is not replaced in time or the infusion set is not removed in time, it is easy to bring back blood, and air bubbles are easy to enter the human body, which brings safety hazards

Method used

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  • Automatic liquid-stopping type infusion apparatus
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Examples

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Embodiment Construction

[0007] Below, illustrate the implementation of the present invention in conjunction with accompanying drawing:

[0008] The automatic liquid stop device is located between the puncture device (1) and the dropper (5). The automatic liquid stop device is composed of a shell (2), a hydrophilic matrix (3) and a cavity (4). The hydrophilic matrix (3) The shape of the hydrophilic substrate (3) can be film-like, group-like or other shapes, and the average pore diameter or gap width of the hydrophilic matrix (3) is not more than 50 μm. During the normal infusion process, the cavity (4) around the hydrophilic matrix (3) is soaked by the liquid, and the liquid passes through smoothly. When the liquid in the infusion bottle (7) is infused, the cavity (4) in the automatic liquid stop device When the inside is basically gas, the liquid forms tension on the surface of the hydrophilic matrix (3), and the negative pressure formed by the height of the liquid at the lower end of the automatic l...

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Abstract

The invention relates to an automatic liquid-stopping type infusion apparatus, and belongs to the technical field of medical apparatuses and instruments. The automatic liquid-stopping type infusion apparatus is characterized in that the surface tension of hydrophilic substrates is utilized for achieving liquid stopping, an automatic liquid-stopping device is located between a puncture outfit and a dropper, the automatic liquid-stopping device is composed of a shell body, the hydrophilic substrates and a cavity, the hydrophilic substrates can be in a sheet film shape or a lump shape or other shapes, and the average pore size or clearance width of the hydrophilic substrates is less than 50 microns. In the normal infusion process, the cavity on the periphery of the hydrophilic substrates is soaked by liquid, the liquid passes through smoothly, when liquid in an infusion bottle runs out, the cavity inside the automatic liquid-stopping device is basically filled with air, the liquid forms tension on the surface of the hydrophilic substrates, the negative pressure generated by the liquid height of the lower end of the automatic liquid-stopping device is insufficient to break the surface tension of the hydrophilic substrates, the air cannot pass through the hydrophilic substrates continuously, and the purpose of automatic stopping of infusion is achieved.

Description

Technical field [0001] The invention relates to an automatic liquid-stopping type transfusion device, which belongs to the technical field of medical instruments. Background technique [0002] Infusion sets have been widely used clinically. Conventional infusion sets, if the infusion bottle is not replaced in time or the infusion set is not removed at the end of each bottle of liquid infusion, it is easy to bring blood back, and air bubbles are easy to enter the human body, bringing safety hazards. Contents of the invention [0003] The invention provides an automatic liquid-stopping infusion set, which has the characteristics of automatically stopping the liquid at the end of the infusion to prevent blood return and avoid air entering the human body, and the product has a simple structure and is convenient to use. [0004] The technical scheme adopted by the present invention to solve the technical problem is: utilize the surface tension of the hydrophilic substrate to re...

Claims

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Application Information

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IPC IPC(8): A61M5/14A61M5/38
Inventor 丘梅丽
Owner 丘梅丽
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