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Double-layer precision filter infusion set

A technology of precision filtration and filter, which is applied in the field of medical devices, can solve the problems of large membrane filter, high cost, complicated production process, etc., and achieve the effect of low cost, simple structure and easy implementation

Inactive Publication Date: 2011-06-15
谢世庚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing precision filters are all single-layer flat filters. The area of ​​the filter membrane is large, so the filter is also large. The production process is complicated and the cost is high, which is unbearable for most patients.
So currently only a few medical units are used for a small number of patients

Method used

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Experimental program
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Embodiment Construction

[0009] Combine below figure 1 Describe in detail the details of the specific device proposed according to the present invention and its working conditions.

[0010] The double-layer filter precision infusion set includes a double-layer precision filter (6), the upper layer (4) of which is a coarse filter membrane, and the lower layer (5) is a fine filter membrane. The double-layer precision filter can be located at any position in the upper conduit (2), the dropping funnel (3) and the lower conduit (7). In this embodiment, the double-layer precision filter is arranged above the water inlet of the downcomer (7).

[0011] When working, the medicinal liquid enters the dripping funnel (3) through the bottle insertion needle (1) and the upper conduit (2), and then the medicinal liquid passes through the upper layer (4) of the double-layer precision filter (6) and then is filtered by the lower layer (5). After precise filtration, it flows into the downcomer (7) and the infusion ne...

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PUM

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Abstract

The invention relates to the field of medical devices, and in particular to a double-layer precision filter infusion set. A liquid medicine filter of the ordinary infusion set can only filter micro-particles with the diameter of above 20 mu m, a large number of smaller micro-particles can not be filtered, and the number of the smaller micro-particles is larger, so that the harm is great. The infusion set is not suitable for requirements of modern medicine already. However, as the area of a filter membrane of the precision filter infusion set is large, the process of a filter is complex, and the cost is high. A double-layer filtration structure is used, and two layers of the filter membranes are overlapped, thereby improving the filtration effect, reducing the area of the filter, being simple in process and being low in cost.

Description

technical field [0001] The invention relates to the category of medical equipment, and is a double-layer precision filter infusion set. Background technique [0002] Because there are a large number of various particles in the medicinal liquid, the infusion set is provided with a medicinal liquid filter. The liquid medicine filter used in general infusion sets can only filter particles with a diameter of more than 20 μm, and the filter membrane used is a coarse filter membrane. However, there are particles with a diameter of 5-20 μm in the medicinal liquid, which are the most harmful. Therefore, an infusion set that uses a filter membrane that can filter particles with a diameter of more than 5 μm is called a precision filter infusion set. The precision filter infusion set will replace the current common filter infusion set. [0003] However, the filter holes of the precision filter are very small, which affects the flow and flow rate of the infusion. Therefore, the area...

Claims

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Application Information

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IPC IPC(8): A61M5/38
Inventor 谢世庚
Owner 谢世庚