Sampling swab: We all know that the sampling swab is in direct contact with the sampling site, that is, in direct contact with our human organs, and the material of the sampling head is closely related to the subsequent testing.
Single-use sterile sampling swabs generally have to meet what standards?
1、Sampling swab head
Manufacturing sampling swab head should use PE synthetic fibers, polyester fiber, polypropylene fiber, synthetic fibers such as rayon.
(1) natural fibers such as cotton is not recommended
Because the fibers of cotton have a strong adsorption of proteins and do not easily elute to the subsequent preservation solution;
(2) also not recommended for nylon type fibers
Because nylon-type fibers (similar to toothbrush bristles) do not absorb water well, resulting in insufficient sampling volume and affecting the detection rate.
(3) sampling swab head must not use calcium alginate sponge or wooden stick swab (including bamboo sticks).
Because the wooden stick or bamboo swab containing calcium alginate and wooden components soaked in preservation solution after breaking will also adsorb protein, and even inhibit the subsequent PCR reaction.
2、Sampling swab handle
The material recommended for manufacturing swab handles is hollow polystyrene (PS) extruded tube, polypropylene (PP) injection indentation tube or ABS plastic (high strength, good toughness), regardless of the material used can not add calcium alginate type additives; not recommended to use wooden sticks or bamboo sticks.
Swab handle has a folding type, built-in type two.
(1) break type swab after sampling into the preservation tube from near the sampling head part of the break off and tighten the tube cover can be.
(2) The built-in swab can be placed directly into the preservation tube after sampling, and then the small hole built into the cap of the preservation tube can be tightened by aligning the cap with the top of the handle.
When comparing the two methods, the latter is relatively safe. Fracture swab in conjunction with the use of smaller size preservation tube, fracture may lead to the liquid inside the tube spilled, should pay due attention to the risk of contamination that may be caused by improper use of the product.
In short, the sampling swab should ensure the sampling volume and release volume, and the selected material should not have substances that affect the subsequent detection.
Shenzhen Medico Biomedical Technology Co., Ltd. sampling swab characteristics
(1) flocked swab, swab head using the unique jet implanted nylon fiber technology to increase the collection and release of specimens, the number of specimens collected by it from the traditional sampling swab 20% to 60%;
(2)Swab handle adopts ABS rod/PP rod with unique breakable design on the rod for easy specimen transportation;
(3) The fluffy texture allows for the collection of more target analytes;
(4) No specimen residual volume to speed up specimen process processing;
(5) Radiation sterilization to ensure sterility
