Monthly Archives: August 2021

what is a flocked swab

What is a Flocked Swab

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what is a flocked swab

Many customers ask me, why is use flocking sampling swabs? You’ll know from the comparison below：

The flocked sampling swab of cell medical (Dongguan) Co, Ltd. is composed of nylon short fibre velveteen wool head and medical-grade ABS plastic rod. The volume of samples collected and released is 3 times higher than that of traditional swabs.

Ensure the survival rate of cell samples, no residual fatty acids, and will not affect the test results.

cm flocked swabs Display diagram

cm flocked swabs Display diagram

The sampling swab set contains a swab and a cell preservation solution. After collecting samples with swabs, we stored them in a liquid-based cell preservation solution. It ensures the integrity of sample DNA,

How are flocked swabs made?

Made of nylon fibre flocked technology, and the front end with nylon short fibers fixed in a vertical manner.
So that there is no absorption hole in the sampling area of ​​the sampling swab.
The sample we obtained with a cotton swab does not disperse and remains in the fiber
Which is beneficial Faster and more efficient elution.
Traditional cotton swabs cannot completely collect and elute samples while flocking swabs can elute 95% of samples.
Therefore, the use of flocked swabs has great advantages for various sample collection applications.

What is a flock nylon swab?

Nylon flocking sampling swabs are specially used for sample collection.
And cotton swabs can also be used for sample collection, but the number of samples collected and the collective effect of the two cannot be compared.
Flocked nylon swab with outstanding sample collection and release capabilities.
It can quickly absorb trace amounts of samples, and the release efficiency is high.
The increase in the number of targets helps to improve the sensitivity of rapid diagnostic tests.

product features:

  • flocking swab has a good sampling effect, and the sample collection amount and release amount are as high as 95%;
  • our unique technology increases the comfort of the collected;
  • ethylene oxide sterilization has no inhibition on the subsequent application;
  • swab using spray dense planting nylon fiber technology;
  • nylon fiber swabs can better collect clinical samples and immediately release them into the liquid delivery medium.
  • It has an ABS rod with a “breakpoint“.

In short, the upright nylon fiber is like a soft brush, which can collect more cell samples. Nylon flocked swabs can absorb and release more samples.

How do you use a Copan swab?

What are flocked swabs used for?

cytological sample processing, virological cell culture, DFA test, enzyme-linked immunosorbent assay, PCR test, molecular diagnosis, epidemic disease detection, etc.

1. Disposable sampling swabs for oral cavity and nasopharyngeal swab.

2. Gynecological sampling swab.

3. Virus and bacteria sampling swab.

4. Disposable DNA sampling swab.

5. Cell sampling sterile swab.

6. Laboratory test sampling swab.

 Our flocked swabs are famous for their stable and reliable performance and excellent absorption and elution ability.

  • E-mail：flockedswabs@gmail.com
  • Welcome to consult, We will serve you wholeheartedly.
  • Cell medical (Dongguan) Co., Ltd.
  • China swab and VTM kits manufacturers
Inactivation Virus transport medium 

Inactivation Virus transport medium 

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Inactivation Virus transport medium

purpose

This product is used to inactivate a variety of viruses, such as clinical 2019 ncov, influenza, avian influenza, hand, foot and mouth, measles virus, norovirus, rotavirus and other virus samples, as well as the transport of virus nucleic acid. Compatible with various virus nucleic acid extraction kits on the market, it can realize seamless connection with downstream nucleic acid extraction.

Product specification:

Model Virus transport medium (inactivation) Number of swabs
VTM-B-CM040320S 1 sampling tube with 3ml VTM (inactivated) 2 flocking cotton swabs (nasopharyngeal swab + oropharyngeal swab)
VTM-B-CM040311S 1 sampling tube with 3ml VTM (inactivated) 1 flocking cotton swab (nasopharyngeal swab)
VTM-B-CM040312S 1 sampling tube with 3ml VTM (inactivated) 1 flocking cotton swab (oropharyngeal swab)
Flocked swab+tube with Viral transport medium Multiple options

Flocked swab+tube with Viral transport medium Multiple options

Product advantages:

  1. Safer.

Virus lysis buffer contains a variety of virus inactivating components, which can inactivate the virus efficiently and ensure the safety of transportation and testing personnel.

  1. More stable.

The preservation solution contains RNase inhibitor to ensure the integrity of nucleic acid and prevent false negative results. There is no need for storage and transportation at 2-8 ℃ after sampling, and the nucleic acid quantitative results will not be affected after being stored at room temperature for 48 hours. The nucleic acid in the positive sample can still be detected after the virus is stored at room temperature for 7 days, which saves the storage and transportation cost of virus samples.

  1. More convenient.

Our self-developed sample tube and flocked swab are combined into a set of products, which not only increases the safety of the operator, but also ensures the stable adsorption and release of samples, so that more samples can be collected in the same operation.

Nylon flocking swab This design ensures the maximum adsorption and release of samples, and the same operation can collect more samples than other swabs. Special design - easily broken groove

Nylon flocking swab This design ensures the maximum adsorption and release of samples, and the same operation can collect more samples than other swabs. Special design – easily broken groove

Inactivated or non inactivated, how to choose?

goods Non inactivated virus sampling tube Inactivated virus sampling tube
Product name Virus sampling kit Virus transport medium (inactivation)
Quality Certification MSDS,CE,ISO MSDS,CE,ISO
purpose Nucleic acid detection and virus isolation For nucleic acid detection only
Composition Preservation solution: HEPES, amino acids, protein stabilizer and other components are added to slow down the decomposition of virus. Lysate: guanidine with appropriate concentration combined with a variety of virus cleavage components can inactivate RNase and ensure the integrity of nucleic acid
Transportation conditions after sampling Transport at 2-8 ℃ for no more than 48 hours Room temperature
Does the sample need to be inactivated? yes. 56 ℃ for 30 minutes No need. The sampling solution has inactivation function without further heating
producting process

producting process

Cell medical (Dongguan) Co, Ltd. is a professional manufacturer of virus transport medium.

VTM virus sampling tube kits

VTM viral transport medium tube

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VTM viral transport medium tube_virus sampling tube-universal transport medium

1.[information]

1. Common name: disposable virus sampling tube.

2. Product Name: universal transport medium.

3. Specifications and models vtm-a-cm and vtm-b-cm series.

 2.[package specification]

20 copies / box.

VTM viral transport medium tube-disposable sampling kits

VTM viral transport medium tube-disposable sampling kits

3.[VTM use]

For sample collection, transportation and storage.

4.[viral transport medium tube test principle]

On the basis of Hank’s, potassium chloride, magnesium chloride and calcium chloride are added to provide necessary nutrient ions for pathogenic bacteria to make it more specific. The preservation time is longer, the integrity of pathogenic bacteria morphology is preserved to a greater extent, and the extraction rate of pathogenic bacteria is improved.

5. [structure composition ]

flocked swab and virus transport medium.(or universal transport medium).

6. [sample requirements]

the collected samples shall be sent to the laboratory within 48 hours at 2-8 ℃. If they cannot be sent to the laboratory within 48 hours, they shall be stored at – 70 ℃ or below. The samples shall be inoculated and separated as soon as possible after being sent to the laboratory.

7.[storage conditions and validity period]

1. The products shall be stored in a clean, hygienic, dry and ventilated environment;

2. The temperature is 5 ℃ ~ 35 ℃. 3. Relative humidity ＜ 85% RH. 4. Product shelf life: 12 months.

universal transport medium and flocked swabs-vtm swab

universal transport medium and flocked swabs

8.[usage]

Firstly,before sampling, mark relevant information on the label of the sampling tube.

Secondly,use the corresponding sampling flocked cotton swab for sampling.

Then,after sampling, quickly put the cotton swab into the sampling tube, break the part higher than the sampling tube, and tighten the tube cover.

Finally,see the following for specific sampling methods.

a)Nasal swab: gently insert the sampling head into the nasopalatine part of the nasal catheter, stay for a moment, and then rotate it slowly to exit. Immerse the collected specimen into the liquid in the sampling tube, break the excess part and discard it, and tighten the sampling tube cover.

b) Pharyngeal swab: wipe bilateral pharyngeal tonsils and posterior pharyngeal wall with sampling head. Soak the collected specimen in the sampling solution, break the excess part, discard it, and tighten the sampling tube cover.

 9.[precautions]

1. After collecting pathogenic bacteria samples, we should completely insert the disposable sampling flocked cotton swab into the preservation solution to retain pathogenic bacteria to the greatest extent.

2. The collected samples must be fresh and sent for examination in time to avoid the death of pathogenic bacteria.

3. Forbidden to use products with damaged packaging and expiration date to prevent pollution.

Note: For in vitro diagnosis. For virus sampling, transportation and storage.Including COVID-19.

Food can lead to serious events; It has certain irritation to eyes and skin. If it accidentally splashes into eyes, rinse with clean water.

10.[Manufacturer information]-VTM virus sampling tube kits

[name of manufacturer] cell medical (Dongguan) Co, Ltd .

[address] No. 98, Wusha street, Chang’an Town, Dongguan City, Guangdong Province, China .

[E-mail]：flockedswabs@gmail.com

DO you to know about the virus sample preservation solution

CM company take you to know the virus sample preservation solution.

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Cell medical (Dongguan) Co, Ltd.,Take you to know the virus sample preservation solution.

Virus sample preservation solution,also known as disposable virus sampling tube.When we first came into contact with this term, we must be very curious.

However,what is  DNA / RNA virus sampling tube？

First of all, virus sampling tube is a liquid that protects the tested substance of the virus by immersing the sampling swab virus sample in the sampling tube. Currently, it is mainly used for the collection, storage and transportation of common virus samples such as COVID-19, HFMV and so on. Medical workers can take tissue samples from the throat or specific areas using throat swabs and nasal flocked swabs. Samplers then store the samples for subsequent clinical trials such as nucleic acid extraction or purification. The virus and related samples can be stored at -70℃ or liquid nitrogen for a long time.

Usually,we divide the virus storage solution into two kinds. the non-inactivated virus storage solution and the inactivated virus sampling tube. The non inactivated type can protect viral proteins and nucleic acids. Maintain virus activity and facilitate culture and detection. Although the inactivated type can make the virus no longer have physiological activity, lose infectivity and pathogenicity, and have the ability to reproduce. Inactivate the virus, eliminate secondary infection,and protect the safety of transportation and testing personnel.

disposable virus sampling tube

disposable virus sampling tube

About inactivated sample preservation solution.

There may be a small partner who will question whether the inactivated type will inactivate the virus? How do you check it? Don’t worry, the purpose of using inactivated virus sampling tube is to lyse nucleic acid and detect nucleic acid by subsequent RT-PCR.

After extraction with most commercial kits, the quality of DNA or RNA obtained is good and the yield is high. So,it can complete various gene detection and analysis experiments, such as PCR or qPCR, and save transportation costs.

It is suitable for COVID-19, hfmv and other common virus samples.

About inactivated sample preservation solution.

  • The virus preserved in non inactivated virus sampling tube has better integrity and higher detection rate. Researchers use it for scientific research, including nucleic acid testing.
  • Cryogenic storage without freezing, does not destroy the virus shell, easy long-distance transportation;
  • Application:H1N1 influenza virus and any other Virus swab sampling;
  • The antibiotics in the preservation liquid can effectively prevent bacterial and fungal infection;

Contact us

    Nasal swab painful

    Nasal swab painful

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    People often feel scared during the sampling process using nasopharyngeal swabs. However, is it really painful to use a nasopharyngeal swab?

    It is certain that nasopharyngeal swab testing does not produce painful symptoms, but some patients may feel uncomfortable.

    The doctor used a medical flocked swab to enter the nasopharynx and then took a small amount of secretions. The hospital can isolate pathogenic bacteria through bacterial culture.

    During the operation of the sampler, the patient will have slight nausea and discomfort, which is generally within a tolerable range. The medical staff’s techniques are gentle and skilled, so there is no pain. We can check the bacteria that cause the infection through nasopharyngeal swabs, and select targeted drugs for treatment based on the results of the tests.

    Which is painful, nasal swab or throat swab？

    In contrast, nasal swabs are more painful. Pharyngeal swab is the behavior that doctors use a medical flocked swab to dip secretions from the throat for monitoring. During the collection of pharyngeal swab, the tested person may have symptoms of nausea and vomiting without other obvious pain. Nasal swab is to insert a cotton swab into the deep part of the nasal cavity to dip secretions for monitoring.

     

    Application scenario diagram

    Application scenario diagram

    Why nasopharyngeal swabs are better than oropharyngeal swabs

    • According to reports in the literature, the positive rate of nasopharyngeal swabs is higher than that of oropharyngeal swabs.
    • The patient has good tolerance and can basically take samples without anesthesia after skilled operation
    • The exposure risk of the sampler is lower than that of oropharyngeal swabs.

     

     

    Flocked tapered swab

    Flocked tapered swab

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    FLOCKED SWABS_The most effective sample collection swab.

    Flocked tapered swab have outstanding sample collection and release capabilities, can quickly absorb trace amounts of samples, and release high efficiency, increase in the number of target cells.

    Material: ABS+Nylon flocking

    Flocked tapered swab

    Flocked tapered swab

    Why flocked tapered swab great in Cells Specimen Collection?

    Flocked Swabs are ideal for collecting a large number of cells and rapid slution of the specimens instantly release the cells into the transport medium.

    It is well recognized and adopted by the diagnostic test kit manufacturers who produce reagents in molecular genetic, forensics, clinical laboratories sectors.

    Spray-on nylon swabs

    short perpendicular fiber strands create an absorbent thin layer open structure.

    Patient friendly

    multiple engineered designs and a custom swab fabrication program maximizes patient comfort and drives proficiency of analyte collection.

    High liquid absorbency

    strong apillary hydraulics between the strands of nylon draws up maximum liquid sample.

    Solid and semi-solid recovery-velvet

    the brush-like texture of flocked nylon helps dislodge, collect and transfer solid and semi-solid materials.

    Rapid automatic elution

    liquid and solid specimen samples are held close to the surface between the nylon strands and spontaneously drains when placed in liquid or onto solid media.

    Entire sample released

    flocked tapered swab no sample entrapment because there is no internal mattress core like traditional fiber wound swabs which disperses and ensnares the sample.

     

    Fiber swab VS Flocked swab

    Fiber swab VS Flocked swab

    Advantage of flocked swab 

    Collecting a large amount of the cells
    Rapid 95% elution and release of the specimen
    molded breakpoint design in swab handle
    Free of any PCR inhibitors and interference

    Cell medical (Dongguan) Co, Ltd., a swabs design/swabs manufacturer, flocked tapered swab factories.

    We have many years of experience in medical application moulding and flocking treatment heads and swabs. Our flocking swabs are famous for their stable and reliable performance and excellent absorption and elution ability.

    Certificate:FDA,CE,EU,Free Sale,Export license based on (GMP).

     

     

    nasal swab test

    Nasal swab test

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    We used pharyngeal swabs to collect samples from nucleic acid samples. They are “nasopharyngeal swab” and “oropharyngeal swab”.

    Nasopharynx swab and oropharyngeal swab only have different sampling paths. Oropharyngeal swab is to collect oropharyngeal specimens by entering the sampling swab through the mouth. And nasopharyngeal swab is to collect nasopharyngeal specimens through the nose.

    Nasopharyngeal swab sampling process

    Nasopharyngeal swab sampling process

    Oropharyngeal flocked swab sampling process

    Oropharyngeal flocked swab sampling process

    The pharynx includes nasopharynx, oropharynx and pharynx, all of which belong to the field of upper respiratory tract.The sampling methods of nasopharyngeal swab and oropharyngeal swab are different.

    PCR test can collect nasopharyngeal swabs, sputum and other lower respiratory tract secretions, blood, feces and other specimens for testing, nucleic acid detection by New Coronavirus.If its specimen nucleic acid is positive, it can clear the virus infection.

    New Coronavirus infection mainly invades bronchial epithelial cells and alveolar epithelial cells. Lower respiratory tract specimens, such as sputum and airway extracts, more accurately reflect virus infection.

    Advantages of nasal swabs

    More specimens can be obtained by staying in the pharynx for a long time, which is also the reason why the positive rate reported in the literature is higher than that of oropharyngeal swabs.

     

    Virus sampling tube manufacturer with flocked swabs

    Virus sampling tube manufacturer

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    Disposable virus sampling tube is an important link in virus detection. Our company produces inactivated and non inactivated virus sampling tubes for selection. At present, the commonly used ones are inactivated. Because the inactivated disposable virus sampling tube is sterile, it can better meet the detection needs. Our company produces a complete range of products, including 2ml, 5ml and 10ml. The products sold can be sold alone or together with flocked swabs. That is, double swab virus sampling tube and single swab virus sampling tube_VTM kits.

    Virus sampling tube manufacturer-Disposable virus sampling tube with swabs or no

    Product application

    Disposable virus sampling tube is a complete set of centrifugal tube for sampling and transportation in microbial sampling, also known as specimen transportation tube. For covid-19, influenza virus, hand, foot and mouth virus sampling.

    Manufacturer of disposable virus sampling tube

    Cell medical (Dongguan) Co, Ltd. has a sound R & D and production team with good reputation and high sales. The product is suitable for all kinds of medical units. Welcome to consult and buy. The disposable virus sampling tube produced by our company has complete specifications and great price preference. Welcome to call for details.

    Product advantages

    Flexible combination: the number and type of swabs and sampling tubes can be matched arbitrarily.

    Widely used: it can be used for collection, transportation and storage of specimens such as New Coronavirus, respiratory virus and hand foot mouth virus.

    Excellent quality: after verification, the virus can still be detected after being stored in the preservation solution at room temperature for 7 days.

    Easy to distinguish: both inactivated and non inactivated preservation solutions are pink, which can effectively avoid confusion of sample addition.

    After sampling, the virus and related samples shall be stored and transported within 48 hours under refrigeration (2 ~ 8 ℃). If it needs to be stored for a longer time, please put it at – 70 ℃.

    Nasopharyngeal swab rapid test

    Nasopharyngeal swab rapid test_Individual Package Self Test At Home

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    Rapid Antigen Test Kits for COVID-19

    Individual Package Self Test At Home POCT Lateral Flow Antigen Bfarm 19 Nasopharyngeal Swab Saliva Antigen Rapid Test Kit

    Individual Package Self Test At Home POCT Lateral Flow Antigen Bfarm 19 Nasopharyngeal Swab Saliva Antigen Rapid Test Kit

     

    Specimen types
     Nasopharyngeal swab/oropharyngeal swab
    Testing time
    10 minutes
    Sensitivity
    96.15%
    Specificity
    99.78%
    Accuracy
    99.09%
    Packaging
    		 1 Sets/Box
    Certificate CE/ISO13485/TGA
    Place of origin
    Dongguan,China
    Port
    Shenzhen,China
    Nasopharyngeal swab collection method

    Nasopharyngeal swab collection method

    Collection method of Oropharyngeal Sampling Swab

    Collection method of Oropharyngeal Sampling Swab

    sample preparation,test procedure & interpretation of results

    sample preparation,test procedure & interpretation of results

     

    np swab vs op swab

    np swab vs op swab

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    Since the end of July, COVID-19 has been scattered everywhere. Universal COVID-19 nucleic acid detection has been opened in many parts of the world. After several rounds of nucleic acid sampling and testing, many citizens have some doubts. What are the differences between nasopharyngeal test and oropharyngeal swab sampling?

    • What are the ways of sampling the nucleic acid of the SARS-CoV-2?

    nucleic acid samples collected through the nasal cavity are called “nasopharyngeal swabs”. Samples collected through the mouth are called “oropharyngeal swabs”. Both are the main ways to collect samples from COVID-19 nucleic acid detection. In addition, there are deep expectoration fluid, nasopharyngeal or respiratory tract extract, bronchial lavage fluid, and alveolar lavage fluid.

    • how to choose nasopharyngeal swabs and oropharyngeal swabs?

    Whether to choose nasopharyngeal swabs or oropharyngeal swabs, mainly follows the following principles: first, according to the eighth edition of the prevention and control plan and the second edition of COVID-19 nucleic acid testing manual, the first choice is to collect nasopharyngeal swabs while collecting nucleic acid samples. Secondly, asymptomatic infected persons, entry personnel and close contacts should collect nasopharyngeal swabs during isolation observation; Third, due to the relatively simple operation of oropharyngeal swabs, more oropharyngeal swabs should be collected when nucleic acid detection is carried out in low-risk areas.

    • why should nasopharyngeal swabs be collected first?

    The study shows that the detection rate of COVID-19 nucleic acid in nasopharyngeal swabs is higher than that in oropharyngeal swabs, because the nasopharyngeal cavity is relatively closed and the virus is easier to accumulate. Secondly, the sampler can stand behind the patient’s side. The patient only needs to expose his nostrils, and there is basically no pharyngeal reflex. The exposure risk of the sampler is lower and safer than that of the oropharyngeal swab. However, whether it is oropharyngeal swab or nasopharyngeal swab, the key is that the collection action should be standardized, in place and meet the standards. As long as the collection is standardized, both methods can achieve the expected detection purpose.