a syringe filter

A technology of filters and needles, which is applied in the direction of fixed filter element filters, filtration separation, chemical instruments and methods, etc. It 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, avoid clogging effect

Active Publication Date: 2014-10-29
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 filter membrane, easy local accumulation of filtered impurities, and insufficient strength of the lower cover.

Method used

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  • a syringe filter
  • a syringe filter
  • a syringe filter

Examples

Experimental program
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Embodiment 1

[0023] Such as figure 1 A syringe filter shown includes an upper cover 1, a lower cover 2, a filter membrane 3 and a covering ring 4, and the upper cover 1 includes an upper cover disc body 16 and an input tube 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 at the center of the lower cover disc body 26, and the upper cover disc body 16 and the lower cover disc body 26 are connected up and down to form an accommodating filter membrane 3 therebetween The cavity of the filter membrane 3 is clamped and fixed by the upper cover disc body 16 and the lower cover disc body 26 so that the cavity is divided into upper and lower parts, and the outer periphery of the upper cover disc body 16 and the lower cover disc body 26 is wrapped The tube hole 11 of the input tube part 17 is connected to the upper part of the cavity, and the tube hole 21 of the output tube part 27 is connected to...

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PUM

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Abstract

The invention discloses a syringe filter which comprises an upper cover, a lower cover, a filtering membrane and coating rings, wherein the upper cover comprises an upper cover plate body and an input tube part; the lower cover comprises a lower cover plate body and an output tube part; the upper cover plate body is connected and matched up and down with the lower cover plate body; the edges of the filtering membrane are clamped and fixed through the upper cover plate body and the lower cover plate body, so that a cavity is divided into an upper part and a lower part; peripheries of the upper cover plate body and the lower cover plate body are coated with the coating rings; a plurality of supporting rods A are arranged at the communication part of the tube hole of the input tube part and the cavity; the upper cover plate body is provided with a plurality of arc-shaped bulges A, circular arc-shaped grooves A and radial grooves A, which are formed in the inner wall of the cavity; a plurality of supporting rods B are arranged at the communication part of the tube hole of the output tube part and the cavity; 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 of the cavity; a plurality of reinforcing ribs are arranged at the bottom of the lower cover plate body. By adopting technical scheme of the invention, the filtering membrane is less susceptible to damage, 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. Background technique [0002] Membrane separation technology is known as "one of the most promising high-tech in the middle of the 21st century", among which the application of microporous membrane separation in the fields of biology, chemical analysis and pharmaceuticals is the most eye-catching, without the need to change membranes and clean filters , which saves complex and time-consuming preparations and is widely used in laboratories. Syringe filter has simple and reasonable structure, low cost, good filtering effect and strong universal applicability. It can be used as a fast, convenient and reliable filter treatment device for small-volume samples for routine use in laboratories, and is widely used for pre-filtration of samples. And in the sterilization and filtration operation of laboratory biological fluids, culture media and media additives. For example, the patent document whose publication number...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D29/05B01D61/00
Inventor 蒋峥嵘
Owner ZHEJIANG SORFA MEDICAL PLASTIC
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