Clamping device for dialysis bag

Abstract

The invention provides a clamping device for a dialysis bag. The clamping device comprises a dialysis clamp and a magnet. The magnet is arranged in a second clamping piece; during dialysis operation, the dialysis clamp is used to fix the two ends of the dialysis bag, the dialysis bag is put into a container with a dialysis buffer solution, the magnet is put outside the container, and the position of the dialysis clamp is adjusted by adjusting the position of the magnet according to a magnetic attraction principle to adjust the position of the dialysis bag in the dialysis bag buffer solution so as to meet different experimental requirements.

Description

[0001] technical field [0002] The invention relates to medical experiment auxiliary equipment, in particular to a clamping device for a dialysis bag. Background technique [0003] In the preparation process of biomacromolecules, dialysis technology is often used to remove salts, organic solvents, and small biomolecules in samples. The dialysis bag used in the dialysis process is made of a special semi-permeable membrane folded into a corresponding bag shape according to the amount of sample solution, and the bag mouth is clamped with clips. During dialysis, the biomacromolecule sample solution is first placed in the bag, and then the mouth of the bag is clamped with clips and immersed in water or buffer solution. The large molecular weight biomacromolecules in the sample solution are trapped in the bag, while the salt and small molecules Such substances will continue to diffuse and dialyze out of the bag until the concentration on both sides of the bag reaches equilibri...

AI Technical Summary

Problems solved by technology

But the currently used clip only includes two clips and three parts of the shaft connecting the two clips, wherein, the other end of the clip is provided with a groove and an elastic projection that can be snap-fitted. After the bag is put on, since there is no buoyancy component, it will sink directly to the bottom of the water or buffer solution with the dialysis bag, so it is impossible to use the magnetic rotor (hereinafter referred to as the magnet) stirring method that can speed up the dialysis during dialysis

[0005] The invention patent with the application number 201220436455.4 provides a buoyancy clamp for a dialysis bag with a foam block, which can make the dialysis bag float, but will cause part of the dialysis bag filled with dialysis fluid to be exposed on the dialysis buffer with foam The buoyancy clip of the block is difficult to be sterilized by high-temperature cooking, etc., and it is not suitable for experiments with high requirements for sterility and RNase-free

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