Sterile Foam or Flocked Tipped Applicator
The outbreak of the novel coronavirus pneumonia in 2020 on a global scale has brought significant losses to human society. Viral nucleic acid detection plays a key role in epidemic prevention and control.
As the first step in viral nucleic acid detection, specimen collection is an indispensable link.
The amount of virus collected and released by sampling swabs is directly related to the positive rate of nucleic acid detection. As the gold standard, nucleic acid detection plays an important role in virus detection, and the role of swabs as a sample collection tool should not be underestimated. Among them, throat swabs and nasal swabs are most commonly used, and anal swabs are also used as auxiliary tests.
During the epidemic, researchers from various countries analysed and found that the efficiency of flocking nasal swab sampling and the acquisition of virus samples were the best.
At the same time, in order to solve the problem of the shortage of nasal swabs.
Nasal swabs
The researchers proposed a combined sampling method of oropharyngeal and nasal swabs to achieve the same effect as nasal swabs.
As the main tool for sampling, swabs have important applications in the fields of forensics, clinical medicine, and environmental testing.
Swabs of different materials, such as rayon, foam, polyurethane, polyester, flocked nylon, etc., will have different structures and performance differences and have different collection effects for different specimens such as protein and nucleic acid, which will affect the detection.
The selection of appropriate swabs according to different sampling samples and testing indicators is very important for testing, and the proper use of swabs is also very important for sample collection and the safety of medical staff.
ISO13485 quality management system for producing disposable sampling swabs, quality standards, and sterile swabs.
Nylon flocking swabs–small nylon fibres to a moulded plastic rod.
This production process significantly increases the surface area of the nylon swab, which is conducive to the adsorption of bacteria and easy release.
Oral Foam Swabs 104mm (with 22mm breakpoint)
The sponge swab is soft in texture and has numerous tiny pores. It has strong adsorption to liquid, can collect more target analytes, increase the number of samples collected, and can release a large number of samples without defibrillation.
How to elute, etc., which will affect the test results. Many factors can affect the swab sampling results.
The cotton swab used to poke the throat or nose during the nucleic acid test of the new crown should be called an aseptic sampling swab, also called a pharyngeal swab. According to different sampling sites, including nasopharyngeal swabs and oropharyngeal swabs.
The swab is in direct contact with the nasopharynx or oropharynx to absorb the secretion sample, then put the head with the secretion into the culture solution, break the handle through the breakpoint, seal the lid and send it for testing.
Nasopharyngeal Sampling Procedure
In this process, the swab involves two links: sampling and elution (release the collected sample into the culture medium). The choice of different materials will affect the efficiency of sampling and release, and also affect the correctness of PCR detection. There are certain requirements for the material of the sampling swab.
PCR TEST
According to different materials, common swabs can be divided into medical cotton swabs, foam swabs and flocking swabs.
Several reports have shown that the sensitivity of medical cotton swabs in collecting respiratory samples is low, and natural fibres such as cotton have strong adsorption to proteins, which is not conducive to the subsequent release in the culture medium.
Generally, cotton swabs also have wooden handles, which may adsorb proteins during storage and interfere with virus detection. In addition, the wooden handle is too hard to break, and can also cause safety problems when sampling.
The US CDC recommends that the swab head material— synthetic fibres. The use of calcium alginate swabs or swabs with wooden shafts may inactivate certain viruses and reduce Accurate substances.
Sterile Flocked Nasopharyngeal Swab: a 100% nylon flocked swab that provides exceptional absorption quality.
We produce flocked swabs, VTM kits, virus transport medium, and Specimen Collection Swab with multiple automatic production lines.
Including automatic VTM tube production line, OEM VTM Tube, Flocked Swab Production Line, etc.
We support custom production, OEM and so on, and develop products with customers.