Aseptic sampling device for biological sample

Abstract

The invention provides an aseptic sampling device for a biological sample. The aseptic sampling device comprises a hollow fiber membrane module, an air supply unit and a sampling tool, wherein an air inlet pipe and an air outlet are formed in the hollow fiber membrane module; the sampling tool is fixed on the air outlet; the air supply unit is connected with the air inlet pipe; the hollow fiber membrane module comprises a hollow fiber hydrophobic membrane; the inner diameter of the hollow fiber hydrophobic membrane is 0.8+ / -0.5mm; the thickness of a membrane fiber is 0.15mm; the porosity is 85%; and the aperture is 0.1-0.16mu m. The aseptic sampling device has the beneficial effects that the air inlet pipe in the device can be externally connected with air supply equipment, so that the functions of extremophile bacteria in isolated air during the period of sampling the biological sample are achieved.

Description

technical field [0001] The invention relates to a biological specimen aseptic sampling device. Background technique [0002] In the existing technology, it is very difficult to collect strains in the wild. Usually, the slant culture medium of the test tube is prepared, and it is placed in a travel bag after autoclaving. Generally, 300 test tubes or more are carried. In the wild environment The conditions are poor, and alcohol lamps are generally used to isolate air-heavy miscellaneous bacteria. Usually, samples are taken from the junction of the cap and the bacillus of wild mushrooms and placed in test tubes. However, the survival rate is very low. The author went to Pubei County, Guangxi to collect Rhodoconibacterium in May, and only one of the 300 test tubes with him survived. It can be seen that the miscellaneous bacteria in the wild air play a key role in the smooth survival of the inoculated bacteria. . Contents of the invention [0003] The problem to be solved by ...

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Problems solved by technology

[0002] In the existing technology, it is very difficult to collect strains in the field. Usually, the slant culture medium of the test tube is prepared, and it is placed in a travel bag after autoclaving. Generally, 300 test tubes or more are carried. In the field environment The conditions are poor, and alcohol lamps are generally used to isolate the air-heavy miscellaneous bacteria. Usually, the junction of the cap and the bacillus of wild mushrooms is sampled and placed in a test tube.

But the survival rate is very low. The author went to Pubei County, Guangxi in May to collect Rhodoconibacterium, and only 1 of the 300 test tubes brought with him survived. It can be seen that the miscellaneous bacteria in the wild air play a key role in the smooth survival of the inoculated bacteria.

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