Virus sampling tube belongs to the medical device products, domestic manufacturers are mostly in accordance with a product registration, in accordance with the second class product registration of enterprises are very few, and in order to meet the urgent needs of Wuhan and other places, there are many enterprises are to take the "emergency channel" to apply for a registration permit. He is a microbial sampling and delivery tube for influenza virus, hand, foot and mouth virus and other viral sampling of a set of sampling and delivery of centrifuge tubes, also known as specimen delivery tube, has become a commercial product.
Uses of virus sampling tubes.
①, used in the disease control part, clinical part of the infectious pathogenic microorganism monitoring sampling use. Applicable to influenza virus, hand, foot and mouth virus and other types of virus sampling, but also for mycoplasma, chlamydia, ureaplasma lamp sampling.
②, used for transporting nasopharyngeal swab specimens or site-specific arrangement specimens from sampling site to testing laboratory for pending PCR extraction and testing.
③、Used to preserve nasopharyngeal swab specimens or site-specific arrangement specimens pending necessary cell culture.
Principle of action: After sterilization and treatment of the sampling tube, virus stabilizing components such as Hank's base solution are added, which can maintain the activity of virus in a wide temperature range, reduce the speed of virus decomposition and enhance the positive rate of virus isolation.
Virus Sampling Tubes
Precautions.
①, the use of virus sampling tube sampling should be sent quickly, collected immediately for 2 ~ 8 ℃ low-temperature transport, virus samples can be placed in 2 ~ 8 ℃ for a short period of 48 hours; long-term storage should be placed below -20 ℃ low-temperature conditions, -70 ℃ or -196 ℃ storage.
②, the collection of virus samples should be strictly in accordance with the sampling procedures, so that the sampling site is accurate, sampling intensity uniformly appropriate, otherwise it will affect the positive rate of virus isolation.
③, prohibit direct touching of the collected patients, prohibit wet swab after the patient sampling
④, only for the sampling of virus samples, is strictly prohibited for the sampling of bacterial samples, the sampling solution itself contains antibiotics to bacteria have a press effect.
⑤, the product is past the expiration date or the product packaging is broken shall not be used.
⑥, sampling after the virus sampling tube inappropriate temperature delivery, will cause bacteria mycobacteria proliferation, the antibiotics in the pre-sampling solution will completely press the microorganisms in the sample.