COVID-19 Testing: Method of collecting virus swab samples

Posted on 2021年9月9日2021年9月17日 by Dr. Lee

COVID-19 Testing: virus swab

According to New Coronavirus’s pneumonia diagnosis and treatment plan (trial version fourth), to diagnose suspected cases of New Coronavirus pneumonia, we need one of the following etiological evidence:

1. Respiratory tract specimens or blood samples were detected by real-time fluorescence RT-PCR for New Coronavirus nucleic acid positive.

2. Novel coronavirus is highly homologous to respiratory tract specimens or blood samples.

Therefore, novel coronavirus pneumonia is an indispensable part of the specimen collection. So, where to collect specimens? How to collect specimens? How can medical staff protect themselves during collection? What should I do after collection?

How to obtain a virus swab specimen?

We all know that the collection method of virus swab specimen is basically to use the swab to sample the infected place or part of the virus, and then put it into the virus sampling tube containing preservation solution without touching other places, so as to conduct virus detection later.

Specimen type:

1. Upper respiratory tract specimens: including pharyngeal swab, nasal swab, nasopharyngeal extract, etc.

2. Lower respiratory tract specimens: including deep expectoration fluid, respiratory tract extract, bronchial lavage fluid, alveolar lavage fluid and lung tissue biopsy specimens.

3. Blood samples: try to collect anticoagulants in the acute stage within 7 days after onset. The collection volume is 5 ml, preferably fasting blood.

4. Serum samples: try to collect double serum in acute stage and recovery stage.

5. Conjunctival specimens: conjunctival swab specimens shall be collected for cases with ocular infection symptoms.

6. Stool samples: Patients with diarrhea symptoms need to collect stool samples.

COVID-19 Testing: Common virus swab sampling methods

Methods of throat swab collection

Inform the patient of the purpose of examination, collection method and collection time. It is best to collect specimens before using antibiotics.

Objective: To study the clinical effect of the method

Secretions were collected from pharynx or tonsil for bacterial culture or virus isolation to assist in clinical diagnosis and treatment.

Prepare sampling supplies:

Disposable sampling swab, virus sampling tube, tongue depressor and biological bag

Operation method:

(1) Ask the patient to sit down, tilt his head back, open his mouth and make a “ah ~” sound

(2) The sampling personnel shall fix the patient’s tongue with a tongue depressor, and use a disposable pharyngeal swab to pass through the root of the tongue to the posterior pharyngeal wall, tonsil recess and lateral wall;

(3) Repeatedly wipe 3-5 times to collect mucous membrane cells or sputum

(4) . gently remove the swab to avoid touching the tongue, the suspension, the oral mucosa and saliva

(5) Put the swab into the virus sampling tube gently and vertically. The sampling personnel shall disconnect the tail of the flocking swab and leave the tail of the swab completely in the tube.Be careful that the swab does not touch the wall of the tube.

(6) . tighten the cap, mark it, and seal it in the biosafety bag.

(7) The sampling personnel shall send the samples to the laboratory for testing in time. If the sampling personnel cannot send the samples for inspection in time, they shall store them at low temperature

Methods: nasal swabs were collected

Nasopharyngeal swab_COVID-19 Testing: Method of collecting virus swab samples

(1) Ask the patient to sit down with his head slightly back and remove the secretion from the front nostril first;

(2)measure the distance from nostril to ear base with swab and mark with finger

(3)gently insert the swab into the nostril until it is marked or stopped when there is obstruction. Let the swab stay in the nose for 15-30 seconds, and then rotate it gently three times.

(4) slowly pull out the nasal swab and quickly put it into the virus sampling tube. Then break the swab, leave its tail and place it completely in the tube.

(5) tighten the cap, mark it, and seal it in the biosafety bag.

(6) If we need to collect from both nostrils, we should use a swab.

(7) It should be sent to the laboratory for testing in time. If it can not be sent for inspection in time, it should be stored at low temperature.

Generally speaking, COVID-19 testing: the main methods of collecting virus swabs are nasopharyngeal sampling and oropharyngeal sampling.

Is COVID-19 pneumonia more infectious than SARS?

The effectiveness of infectious disease transmission depends on its basic regeneration index. Novel coronavirus pneumonia is more infectious than SARS at present, with a basic regeneration index of SARS higher than that of SARS.

The novel coronavirus pneumonia is a new disease, and the population is generally immune. Everyone is susceptible and susceptible to infection. The incubation period of COVID-19 also has the ability to transmit, and it has longer infection time. The novel coronavirus pneumonia novel coronavirus pneumonia is also typical of the clinical symptoms, and asymptomatic infections are also contagious, so the infection of new crown pneumonia is higher than SARS.

About us

Cell medical (Dongguan) Co., Ltd. is a swabs manufacturer. We produce and sell virus sampling related products. Such as virus sampling flocked swabs, VTM kits and virus transport media, and have multiple automatic production lines. We support customized production, OEM, etc., and develop products with customers.

Disposable virus sampling kits

Posted on 2021年9月8日2022年3月22日 by Dr. Lee

Disposable virus sampling kits

Cell medical (Dongguan) Co., Ltd. _China swab manufacturer.Our flocked swabs are famous for their stable and reliable performance and excellent absorption and elution ability.

We produce flocked swabs, VTM kits, virus transport medium, Disposable virus sampling kits,with multiple automatic production lines.We support custom production, OEM and so on, and develop products with customers.

Email:flockedswabs@gmail.com

Nasopharyngeal Swab & Oropharyngeal Swab

Item No.#	Description	Sterilization
CM-98000	Oropharyngeal Specimen Collection flocked Swab, Single swab packaging, Sterile,Breakpoint 30mm	EO
CM-96000	Nasopharyngeal Specimen Collection flocked Swab, Single swab packaging, Sterile,Breakpoint 80mm	EO
CM-93050	Throat Specimen Collection flocked Swab, Single swab packaging, Sterile,Breakpoint 80mm	EO
CM-96000N	Nasopharyngeal Specimen Collection flocked Swab, Single swab packaging, Sterile,Breakpoint 90mm	EO
CM-98000T	Medical Flocked Swab With Test Tube, with Individually Wrapped and Sterile Buccal（oral) Swabs	EO
CM-93050T	Specimen Collection Swab tube, Individual Sterile Package Oropharyngeal Swabs	EO
CM-96000T	Nasal Sample Collection Kits,flocked Swab With Test Tube,ndividually Wrapped and Sterile	EO

Ethylene oxide sterilization, irradiation sterilization and independent packaging.

Supply Ability:500,000-1,000,000 Pieces per Month

Disposable sampling swab application

The top of the flocked swab is made of nylon fiber. The nylon fiber is successively attached to the surface of the medical ABS rod through the electrostatic field. The layer is completely parallel and perpendicular to the surface of the internal rod for DNA collection.

The collection system adopts nylon flocked swab, which is non-toxic to microorganisms and can maximize the collection and release of samples.

A large number of clinical experiments show that compared with ordinary sterile cotton swab, nylon flocking swab has better effect on the collection and transportation of clinical microbial samples

This is especially true for those specimens that cannot be submitted for examination in time and placed for too long.

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

Product features

1.Non invasive,Non-irritating；

2.Outstanding sample collection and release ability;

3.Rapid Absorption;

4. Increased Assay Sensitivity;

5.Perpendicular Nylon Fibers;

6.Certified Free Of Inhibitors And Interference.

Our FDA & CE certificate can ensure effective and legal customs clearance in your country.

VTM (Viral Transport Medium):Including inactivated and non inactivated.

Quality Certification:MSDS,CE,ISO

Our virus transport medium is based on Hanks equilibrium salt solution (HbSS).

It contains calcium and magnesium, heat inactivated fetal bovine serum, gentamicin and amphotericin B.

The composition and preparation of virus vectors follow the recommendations of who and CDC.

The product is provided in a sterile 13 ml flat bottom tube with or without swabs, providing the greatest range of possibilities for collecting samples.

Inactivated Viral Transport Medium(ITM).

This product is designed for the inactivation of a variety of viruses, such as clinical 2019-ncov, influenza, avian influenza, hand-foot-mouth, measles virus, norovirus, rotavirus and other virus specimens, and for the transportation of the virus nucleic acids. It is compatible with various viral nucleic acid extraction kits available on the market and can achieve seamless connection with downstream nucleic acid extraction.

1. It can not only inactivate the virus, but also prevent nucleic acid degradation.

2. Room temperature transmission

3. The samples can be stored at room temperature for 20 days.

4. It is used to collect, store and transport viruses, chlamydia, mycoplasma and Ureaplasma.

Model	Specification
VTM-B-CM010120S	2With Nasal flocked Swab& Throat Swab ; 1ml inactivated medium ;2ml tube
VTM-B-CM010111S	With Nasal Swab ; 1ml inactivated medium ;2ml tube
VTM-B-CM010112S	With Throat Swab ; 1ml inactivated medium ;2ml tube
VTM-B-CM020220S	2With Nasal Swab& Throat Swab ; 2ml inactivated medium ;5ml tube
VTM-B-CM020211S	With Nasal Swab ; 2ml inactivated medium ;5ml tube
VTM-B-CM020212S	With Throat Swab ; 2ml inactivated medium ;5ml tube
VTM-B-CM020320S	2With Nasal Swab& Throat Swab ; 3ml inactivated medium ;5ml tube
VTM-B-CM020311S	With Nasal Swab ; 3ml inactivated medium ;5ml tube
VTM-B-CM020312S	With Throat Swab ; 3ml inactivated medium ;5ml tube
VTM-B-CM040320S	2With Nasal Swab& Throat Swab ; 3ml inactivated medium ;10ml tube
VTM-B-CM040311S	With Nasal Swab ; 3ml inactivated medium ;10ml tube
VTM-B-CM040312S	With Throat Swab ; 3ml inactivated medium ;10ml tube
VTM-B-CM040520S	2With Nasal Swab& Throat Swab ; 5ml inactivated medium ;10ml tube
VTM-B-CM040511S	With Nasal Swab ; 5ml inactivated medium ;10ml tube
VTM-B-CM040512S	With Throat Swab ; 5ml inactivated medium ;10ml tube

Non inactivated Viral Transport Medium(ITM).

Application:Nucleic acid detection and virus isolation.

1. Low temperature non freezing storage, does not damage the shell of the virus, and is convenient for long-distance transportation.

2. Applicable to all kinds of swab samples, including oral swab, nasal swab, throat swab, etc

3. It can be used for H1N1 influenza virus and any other virus that can be sampled with a swab.

4. The viral nucleic acid can be extracted with the lentivirus DNAOUT or the lentivirus RNAOUT.

5. Antibiotics in the sampling solution can effectively prevent bacterial and fungal contamination.

6. Bovine serum albumin is added to the sampling solution, which can protect the virus sample and improve the separation rate.

Model	Specification
VTM-A-CM010120S	2With Nasal flocked Swab& Throat Swab ; 1ml Non inactivated medium ;2ml tube
VTM-A-CM010111S	With Nasal Swab ; 1ml Non inactivated medium ;2ml tube
VTM-A-CM010112S	With Throat Swab ; 1ml Non inactivated medium ;2ml tube
VTM-A-CM020220S	2With Nasal Swab& Throat Swab ; 2ml Non inactivated medium ;5ml tube
VTM-A-CM020211S	With Nasal Swab ; 2ml Non inactivated medium ;5ml tube
VTM-A-CM020212S	With Throat Swab ; 2ml Non inactivated medium ;5ml tube
VTM-A-CM020320S	2With Nasal Swab& Throat Swab ; 3ml Non inactivated medium ;5ml tube
VTM-A-CM020311S	With Nasal Swab ; 3ml Non inactivated medium ;5ml tube
VTM-A-CM020312S	With Throat Swab ; 3ml Non inactivated medium ;5ml tube
VTM-A-CM040320S	2With Nasal Swab& Throat Swab ; 3ml Non inactivated medium ;10ml tube
VTM-A-CM040311S	With Nasal Swab ; 3ml Non inactivated medium ;10ml tube
VTM-A-CM040312S	With Throat Swab ; 3ml Non inactivated medium ;10ml tube
VTM-A-CM040520S	2With Nasal Swab& Throat Swab ; 5ml Non inactivated medium ;10ml tube
VTM-A-CM040511S	With Nasal Swab ; 5ml Non inactivated medium ;10ml tube
VTM-A-CM040512S	With Throat flocked Swab ; 5ml Non inactivated medium ;10ml tube

Disposable virus sampling kits sampling process

Nasopharyngeal swab sampling_flocked swabs

Oropharyngeal swab sampling

What is a sterile swab？

Posted on 2021年9月7日2022年3月22日 by Dr. Lee

Sterile swab is the full name of disposable sterile sampling swab. The sterile sampling swab does not contain or other live microorganisms. Common sterilization methods include autoclave, EOS (ethylene oxide gas) and γ-ray irradiation. In medicine, we usually use sterile swabs for biological sample collection. Such as bacterial sample processing, COVID-19, nasal swab sampling, throat swab sampling, oral swab sampling, virological cell culture and so on are ideal ways.

Swabs are sterile to maintain the integrity of the sample. Usually, there is a resealable sterile container or bag to preserve the integrity during processing and transportation to the laboratory. Many different people use sterile cotton swabs, including medical personnel, food manufacturers and crime scene investigators.

Sterile swabs can be used to collect samples. The material, size and shape of the sterile swab head may be different, such as round or pointed. Traditional swab may be made of cotton fiber, polyester or calcium alginate. Collection and publishing volumes are large and may be corrupted. Traditional swab laboratory staff also need to use scissors to cut, which is too troublesome and time-consuming.Our new flocked disposable sampling cotton swab greatly reduces the time cost and has the advantage of being easier to use than traditional swabs.

The main advantages of our sterile flocked swab are as follows.

1. It has extraordinary water absorption capacity and can increase the number of samples collected on the watch from 20% of the traditional sampling swab to 60%.

2. The release rate of collected samples exceeds 90%, which ensures the high reliability of the results.

3. Select different preservation solutions for different types of samples.

4. The plastic rod has a unique fragile design, which is convenient for sample transportation.

5. Ethylene oxide sterilization, irradiation sterilization and independent packaging.

Sampling operation method.

1.Nasopharyngeal swab sampling.

Nasopharyngeal Sampling diagram

①Insert a sterile swab into the nostril of the patient,reaching the surface of the posterior nasopharynx.

②Swab over the surface of the posterior nasopharynx. Hold the swab in the nosefor15-30s and rotate it 3 times.

③Withdraw the sterile swab from the nasal cavity.

④Put virus sampling tube vertically.

⑤At the breaking point, disconnect the swab, discard the tail, and completely place the swab into the tube.

⑥Tighten the tube cap, mark it, put it into the biosafety bag and seal it.

2.Oropharyngeal swab sampling

Oropharyngeal Sampling diagram

① Keep the head slightly tilted, the mouth open, and the pharyngeal tonsils on both sides exposed.

②The sampling personnel shall wipe the root of the tongue with a swab. Wipe the pharyngeal tonsils on both sides of the subject back and forth with a strong force for at least 3 times, and then wipe the posterior pharyngeal wall up and down for at least 3 times.

③Put the sampled swab into the virus sampling tube, break the swab rod at the mouth of the tube cover and completely put it into the tube.

④Tighten the tube cap, mark it, put it into the biosafety bag and seal it.

⑤Submit for inspection in time.

Anal swab sampling

Anal Sampling diagram

①The patient is in the knee chest position or lateral position.

② Gently insert a sterile cotton swab into the anus for 3cm-5cm, and then gently rotate and pull it out.

③Immediately put it into a 15ml outer screw cap sampling tube with 3ml-5ml virus preservation solution.

④Fold off the tail of the cotton swab, tighten the sealing cover, and then submit it for inspection in time.

⑤In order to avoid embarrassment of the examinee, anal swab sampling is generally conducted in a more private place, and the operation requirements of anal swab sampling are more strict. Generally, there will be no obvious discomfort after anal swab sampling.

Nasopharyngeal swab collection kits with virus transport media

Posted on 2021年9月7日2021年9月7日 by Dr. Lee

Nasopharyngeal swab collection kits with virus transport media

Cell medical (Dongguan) Co., Ltd.

Nasopharyngeal swab collection kits are used to collect nasopharyngeal swab samples,which is a high quality and reasonable kit for testing COVID-19 .

The collection kit contains virus transport media, which can collect, transport and store viruses at room temperature The ability of these kits to detect samples by RT-PCR has been verified. The virus and related samples shall be stored and transported within 48 hours under cold storage (2 ~ 8 ℃).

Characteristics of nasopharyngeal swabs and virus transport tubes.

The sterile nasopharyngeal swab we provide has a flocked tip swab with a breakpoint located about 80-90 mm from the tip, which is compatible with the catheter provided. The virus sampling tube cap design is very effective in containing media and preventing sample leakage.And these sampling tubes are pre labeled, and each tube has a unique bar code identifier.

Nasopharyngeal swab collection kits with virus transport media

Product specification

A) 1pcs flocked swab ,1 pc 10ml tube with 3ml medium refilled；
B) 2pcs flocked swab ,1 pc 10ml tube with 3ml medium refilled；
C) 1pcs flocked swab ,1 pc 5ml tube with 2ml medium refilled；
D) 2pcs flocked swab ,1 pc 5ml tube with 2ml medium refilled；

certification

• CE IVD registration Kit；

• iso13484 certified manufacturer, registered with FDA；

VTM Factory VTM kits with flocked swab for sample collection

Posted on 2021年9月3日2022年3月22日 by Dr. Lee

VTM Factory VTM kits with flocked swab for sample collection.

About us_VTM Factory

Cell medical (Dongguan) Co., Ltd., is a professional manufacturer of VTM kits , more than 10 years of experience in medical application molding and flocked treatment heads and swabs. Our flocked 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).

production process VTM Factory

Viral Transport Medium kits

VTM Factory FAQ

Q1: Why choose us?
A1: a professional manufacturer of VTM kits, more than 10 years of experience in medical application molding and flocked treatment heads and swabs.Excellent and stable quality with best cost performance.Various payment term available.Timely delivery guaranteed.Supply Ability:500,000-1,000,000 Pieces per Month.Q2: Can I visit your factory?
A2: Sure, warmly welcome your visit . Please try to contact our sales representative first by email or phone. We will make the appointment and the most reasonable planning for your transportation.

Q3: Can you supply free samples?
A3: Yes, we would like to offer you free samples with freight collect.

Q4: Can you offer customized service?
A4: Yes, both OEM and ODM are available. Let me know your idea or requirements on the products, we make it perfect for you.

Q5: How long is your delivery time?
A5: Generally 20-30 days for mass production after sample confirmed and the receipt of formal PO or deposit.

flocked swabs definition

Posted on 2021年9月3日2021年12月21日 by Dr. Lee

flocked swabs definition

Flocked swab using spray dense planting nylon fiber technology;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.

Picture of sampling flocking swab

Why use flocked swabs？

COVID-19 is New Coronavirus’s variant coronavirus, which can cause pneumonia after human infection. It belongs to an acute respiratory infectious disease, which is highly infectious and generally susceptible to people. It is easy to replicate in the upper respiratory tract of human body. In general, new crown nucleic acids are detected rapidly within 96 hours after infection. Testers can find viruses in the human upper respiratory tract. Experiments show that flocking swab can quickly elute > 95% of the original samples, and easily improve the detection sensitivity.

Application of sampling flocked swabs.

The upper respiratory tract of the human body includes the nasal cavity, pharynx and throat. That is to say, if a person is infected with COVID-19, he can extract the nucleic acid of the virus in the nasal cavity, pharynx and larynx in 96 hours. Therefore, we generally sample these locations when we carry out the rapid detection of new crown nucleic acid.

we distinguish swabs by different sampling positions. For nasal sampling, we become nasopharyngeal flocked swabs; For oral sampling, we become oropharyngeal flocked swabs.

What is the difference between nasopharyngeal swabs and oropharyngeal flocked swabs?

Nasopharyngeal swabs and oropharyngeal swabs differ in material hardness in addition to the differences in sampling sites. The nasopharyngeal swab is generally slender and soft, and can change its shape along the nasal cavity, which is convenient for the sampling personnel to probe into the upper respiratory tract along the nasal cavity. The oropharyngeal swab will be thick and hard.

In terms of comfort, there are also great differences between the two. Since gas exchange is often carried out in the nasal cavity, the swab shall be fully extended to the end of the nasal cavity during sampling to ensure that sufficient concentration of samples are collected. This usually brings very uncomfortable feeling to the subject, and sometimes even leads to epistaxis.The oropharyngeal swab only needs to collect the pharyngeal sample, and only needs the person to open his mouth for collection. Although it occasionally causes a temporary feeling of nausea, the discomfort will not last too long.

There are also obvious differences between the two in drug loading. Studies have shown that in patients infected with the new crown virus, the amount of drug carried on the nasopharyngeal swab is significantly higher than that on the oropharyngeal swab. In other words, the detection amount of nasopharyngeal swabs is generally higher than that of oropharyngeal swabs.

In addition to nasopharyngeal flocked swabs and oropharyngeal swabs, there are anal swabs. As the name suggests, anal swab is a kind of test for patients with gastrointestinal symptoms. It can effectively improve the detection rate, but it is not widely used because of the inconvenience of sampling.

Attention

After sampling the flocking swab, we should immediately put the swab into the storage tube to avoid polluting the sample. Then, the subsequent rapid detection process of new crown nucleic acid was carried out. No matter what kind of swab is used, the process of rapid detection of new crown nucleic acid is the same. The rapid detection of new crown nucleic acid was completed in four independent areas of the laboratory, and the test results were obtained.

how to collect nasopharyngeal swab?

Posted on 2021年9月1日2021年12月21日 by Dr. Lee

how to collect nasopharyngeal swab?

After several times of nucleic acid sampling and testing, citizens wondered: why do some people require nasopharynx swabs and some people can collect oropharyngeal swabs? Today, experts from cell medical will explain to you.

What is a sampling swab?

At present, except for special diseases, COVID-19’s nasopharyngeal swabs and oropharyngeal swabs are the most common ways of collecting.

Studies have shown that nasopharyngeal swabs have higher detection rate of COVID-19 nucleic acids than oropharyngeal swabs. Because the nasopharyngeal cavity is relatively closed and the virus is easier to accumulate. However, whether it is oropharyngeal swab or nasopharyngeal swab, the key is that the collection action must be standardized, in place and meet the standards. As long as the acquisition is standardized, both methods can achieve the expected detection purpose.

How to collect a nasopharyngeal swab?

nasal swab collection method_How to collect a nasopharyngeal swab？

1. The patient’s head tilts back (about 70 degrees) and persists. 2. Use a swab to estimate the interval from the ear root to the nostril. 3. Insert from the nostril pen to the face. The deepening interval should be at least half of the length from the earlobe to the tip of the nose. Reach the posterior nasopharynx after encountering resistance, stay for several seconds to absorb secretions (generally 15 ~ 30s), and rotate the swab for 3 ~ 5 times. 4. The swab should be gently rotated and taken out, and the swab head should be immersed in a collection tube containing 2ml lysate or cell preservation solution containing RNase inhibitor. 5. Break the sterile swab rod at the top, discard the tail, tighten the tube cover and close it with sealing film.

oropharyngeal swab collection

collection method of oral swabs

1. Ask the patient to gargle with normal saline or clear water first.

2. Wet the flocked swab in sterile normal saline.

3. The patient sat down with his head tilted back and his mouth open, accompanied by an “ah” sound.

4. Fix the tongue with a tongue depressor, and the swab jumps over the root of the tongue to the posterior pharyngeal wall, tonsil recess, lateral wall, etc.

5. The bilateral pharyngeal tonsils should be swabbed back and forth with moderate force for at least 3 times, and then the posterior pharyngeal wall should be swabbed for at least 3 times, 3 ~ 5 times.

6. Remove the swab to prevent touching the tongue, pituitary, oral mucosa and saliva.

7. Immerse the swab head into the preservation solution containing 2 ~ 3ml virus.

8. Break the sterile swab rod near the top, discard the tail, tighten the tube cover and close it with sealing film.

After the introduction of our experts, do you have a deeper understanding of sampling swabs? If you want to know more product details and prices, please leave us a message. We will serve you wholeheartedly!

Contact us

Nasal swab painful

Posted on 2021年8月27日2022年3月22日 by Dr. Lee

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

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

Posted on 2021年8月26日2022年3月22日 by Dr. Lee

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

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

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

Posted on 2021年8月25日2021年8月25日 by Dr. Lee

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

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.

How to obtain a virus swab specimen?

Specimen type:

COVID-19 Testing: Common virus swab sampling methods

Methods of throat swab collection

Prepare sampling supplies:

Operation method:

Methods: nasal swabs were collected

Is COVID-19 pneumonia more infectious than SARS?

About us

Nasopharyngeal Swab & Oropharyngeal Swab

Disposable sampling swab application

Product features

VTM (Viral Transport Medium):Including inactivated and non inactivated.

Inactivated Viral Transport Medium(ITM).

Non inactivated Viral Transport Medium(ITM).

The main advantages of our sterile flocked swab are as follows.

Sampling operation method.

1.Nasopharyngeal swab sampling.

2.Oropharyngeal swab sampling

Anal swab sampling

Characteristics of nasopharyngeal swabs and virus transport tubes.

Product specification

certification

Related products

Contact us

About us_VTM Factory

VTM Factory FAQ

Why use flocked swabs？

Application of sampling flocked swabs.

What is the difference between nasopharyngeal swabs and oropharyngeal flocked swabs?

Attention

What is a sampling swab?

How to collect a nasopharyngeal swab?

oropharyngeal swab collection

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

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

Why flocked tapered swab great in Cells Specimen Collection?

Spray-on nylon swabs

Patient friendly

High liquid absorbency

Solid and semi-solid recovery-velvet

Rapid automatic elution

Entire sample released