Syringe filter and lower cover thereof

A filter and needle technology, applied in the field of the lower cover of the needle filter, can solve the problems of easy local accumulation of impurities and foreign matter, easy damage of the filter membrane, and insufficient strength of the lower cover, etc., to achieve stable and fast filtration speed, increase strength, and avoid clogging Effect

Active Publication Date: 2013-12-11
ZHEJIANG SORFA MEDICAL PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing syringe filter structure has problems such as easy damage to the filte...

Method used

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  • Syringe filter and lower cover thereof
  • Syringe filter and lower cover thereof
  • Syringe filter and lower cover thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 1 The shown syringe filter includes an upper cover 1, a lower cover 2, a filter membrane 3 and a covering ring 4. The upper cover 1 includes an upper cover disc body 16 and an input tube portion 17 arranged in the center of the upper cover disc body 16 , The lower cover 2 includes a lower cover disc body 26 and an output pipe portion 27 arranged in the center of the lower cover disc body 26. The upper cover disc body 16 and the lower cover disc body 26 are connected up and down to form a accommodating filter film 3 therebetween. The edge of the filter membrane 3 is clamped and fixed by the upper cover disc body 16 and the lower cover disc body 26 to separate the cavity into upper and lower parts. The outer periphery of the upper cover disc body 16 and the lower cover disc body 26 wraps Covered with the covering ring 4, the tube hole 11 of the input tube portion 17 is connected to the upper part of the cavity, and the tube hole 21 of the output tube portion ...

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PUM

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Abstract

The invention discloses a syringe filter and a lower cover thereof. The lower cover comprises a lower cover plate body and an output tube part arranged in the center of the lower cover plate body, wherein a plurality of supporting rods B are arranged at the connection part of the output tube part and the lower cover plate body; the supporting rods extend along the tube hole of the output tube part in the radial direction and are gathered and connected to the center of the tube hole; the lower cover plate body is provided with a plurality of arc-shaped bulges B, circular arc-shaped grooves B and radial grooves B, which are formed in the inner wall; the arc-shaped bulges B are concentrically distributed by taking the tube hole of the output tube part as a center; the circular arc-shaped grooves B are formed between every two adjacent inside and outside arc-shaped bulges B; the circular arc-shaped grooves B are communicated with one another through the radial grooves B; the radial grooves B are communicated to the tube hole of the output tube part and distributed in a radial manner; a plurality of reinforcing ribs are arranged at the bottom of the lower cover plate body. By adopting the technical scheme of the invention, the filtering membrane is less susceptible to damage, the intensity of the lower cover is high, the filter is less susceptible to blockage, and the filtering speed is stable and high.

Description

Technical field [0001] The invention relates to a syringe filter, in particular to the lower cover of the syringe filter. Background technique [0002] Membrane separation technology is known as "one of the most promising high-tech developments in the middle of the 21st century". Among them, microporous membrane separation is the most eye-catching application in the fields of biology, chemical analysis and pharmaceuticals, without the need for membrane replacement and filter cleaning. It saves complicated and time-consuming preparation work and is widely used in laboratories. The syringe filter has a simple and reasonable structure, low cost, good filtering effect, and strong universal applicability. It can be used as a fast, convenient and reliable small-volume sample filtration device for routine use in laboratories, and is widely used for sample pre-filtration And in the sterilization and filtration operation of laboratory biological fluids, culture media and media additives....

Claims

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Application Information

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IPC IPC(8): B01D29/05B01D61/00
Inventor 蒋峥嵘
Owner ZHEJIANG SORFA MEDICAL PLASTIC
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