Tag Archives: COVID-19

Viral Transport Medium Sample Collection Tube Specimen Collection Kit

Viral Transport Medium Sample Collection Tube Specimen Collection Kit

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Viral Transport Medium Sample Collection Tube Specimen Collection Kit

Viral Transport Medium Sample Collection Tube: for collection, transportation and storage of detection samples.

The virus sampling tube kits includs a flocked swab and a centrifugal tube containing virus preservation solution.

In terms of protection, there are protection requirements.

As the manufacturer of virus sampling tube is a complete set of centrifuge, it can be used for microbial sampling and transportation of influenza virus, hand, foot and mouth disease virus and other viruses.

Therefore, the disposable virus sampling tube is more safe and convenient.

After all, the disposable virus sampling tube is very convenient to use and has no pollution problem.

Product name

Virus preservation solution

Disposable virus sampling tube-Viral Transport Medium

Disposable virus sampling tube-Viral Transport Medium

Package specification

3ml / piece

Intended use

For the collection, storage and transportation of human nasopharyngeal virus samples.

Inspection principle

This product is a non-toxic sample preservation solution. It can inactivate infectious pathogens and avoid the risk of secondary infection during operation. This product can inactivate more than 99% of cells or viruses within 10 minutes at room temperature to release DNA or RNA of cells or viruses. At the same time, the effective components in the preservation solution can keep RNA at room temperature for 7 days without obvious degradation.

Main ingredients

Product name Specifications

Sample preservation solution 3ml / piece

storage conditions and validity period

Keep at 2-37 ℃ for 12 months.

sample requirements

After sampling with this product, stored at room temperature for 7 days.Stored for a long time at low temperature.

Viral Transport Medium Specimen Collection Kit usage

1. Before sampling, clean your hands, rinse your mouth with water for 1-2 times, remove food residues in your mouth, and swallow the remaining water in your mouth.

2. Tear off the outer package of the sampling swab.

3. Put the swab into the mouth and wipe it repeatedly at the medial buccal mucosa for more than 8-10 times until the nylon pile has been fully infiltrated by saliva (there should be no foreign matter such as food residue).

4. Open the sample collection tube, put the sampled swab into the preservation solution for wetting, and break the swab rod near the top.

5. Tighten the tube cap and complete the sample sampling.

precautions

1. Please check whether the package is intact before use. Do not use if damaged.

2. The collected swab samples can be stored at 2-37 ℃ for 7 days and – 40 ℃ for 12 months. In view of the individual differences of samples, the specific storage periods of different samples are different.

3. The nucleic acid of swab samples can be purified using commercial related kits.

Related products: disposable virus sampling tube, virus sampling tube, sampling tube

 

Oral Swab Stick

Oral Swab Stick

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Oral Swab Stick-Oropharyngeal sampling swab.

COVID-19 Oral Swab test is an important reference for diagnosis and evaluation of curative effect of new crown pneumonia.

Nucleic acid screening samples mainly come from deep cough sputum or pharyngeal swabs.

Pharyngeal swabs include nasopharyngeal swabs and oropharyngeal swabs.

The results of COVID-19 nucleic acid test are also useful.

What is the key to the collection of nucleic acid test specimens from pharyngeal swabs?

Whether collecting nasopharyngeal swabs or oropharyngeal swabs, the collection depth is the key.

For example, if the nasopharyngeal swabs are not collected deep in the nasal cavity, most of the cells that may be collected are virus-free cells, which may cause “false negative”.

What is the difference between Oral Swab Stick and Nasal Swab?

Pharyngeal division includes nasopharynx, oropharynx and laryngopharynx. The mucosa of the three is continuous and belongs to the area of upper respiratory tract. The sampling path of nasopharyngeal swab and oropharyngeal swab is different. Oral sampling is oropharyngeal swab and nasal sampling is nasopharyngeal swab.

What are the advantages of nasopharyngeal swabs?

It can stay in the pharynx for a long time in order to obtain more sufficient specimens; The exposure risk of the sampler is lower than that of the oropharyngeal swab, because the sampler can stand behind the patient’s side during sampling, and the patient is required to pull down the mask to expose only the nostrils and cover the mouth without looking directly at the patient’s mouth, and there is basically no pharyngeal reflex. A few patients may have sneezing reflex after sampling, and the patient can be covered with elbows or paper towels, And because the sampler is not directly in front of the patient, the exposure risk is quite low, so the psychological pressure of the sampler will not be so great.

Can a positive oral swab stick confirm COVID-19?

The novel coronavirus novel coronavirus infection can be diagnosed by the new swab positive guide for new coronavirus infection, but it does not necessarily indicate pneumonia.

After infection with COVID-19, the old person may show two different infections, including fever, dry cough, weakness, and asymptomatic infection.

Patients with positive nucleic acid test of new crown must be isolated and treated.

Only when nucleic acid is negative for more than 24 hours, body temperature is normal and pneumonia symptoms disappear can isolation be lifted according to the situation.

How to sample oropharyngeal swabs?

First collect the oropharynx, gently and repeatedly wipe it for more than 3 times, and then collect the depth of the throat wall for more than 3 times.

The whole process takes about a few seconds. It may be a little disgusting, but there won’t be too many reactions. It’s more acceptable.

According to the personal experience of colleagues: slightly disgusting, but completely acceptable

The site experienced the collection of oropharyngeal swabs. The whole sampling process is only a few seconds and there is almost no discomfort.

How to Obtain a Nasopharyngeal Swab Specimen

How to Obtain a Nasopharyngeal Swab Specimen

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How to Obtain a Nasopharyngeal Swab Specimen

As a non-invasive operation, nasopharyngeal swab sampling is the first choice for diagnosis, monitoring and differential diagnosis of New Coronavirus pneumonia. Its sampling randomness is high. However, the sampling personnel may have false-negative test results due to the different location, strength and time of scraping samples, which may have an adverse impact on the epidemic prevention and control. During the operation, the patient choked and splashed to produce an aerosol, which is very easy for medical staff to have occupational exposure.

This paper mainly explains in detail the protection of medical staff when collecting nasopharyngeal swabs, the collection, packaging and transportation of nasopharyngeal swabs, as well as the patient’s body position, operation methods, collection parts and precautions during specimen collection.

Effective communication and nurse-patient cooperation help the successful collection of nasopharyngeal swabs.

Before the operation, the degree of cooperation of patients should be effectively evaluated. Inform the patient of the collection purpose and precautions in advance.

Clinicians should be cautious if the patient has recent nasal trauma or surgery, a significant deviation of the nasal septum, or a history of chronic obstructive nasal patency or severe coagulation disease.

Standard protection is the foundation of successful nasopharyngeal swab collection

Operator preparation: first, wear protective clothing, wash hands with soap and water (or alcohol), and wear a pair of non-sterile gloves. Then, according to the recommendations of the Centers for Disease Control and prevention, wear an N95 or higher protective mask. Finally, wear a face mask to protect your face and eyes.

Swab Nasal Covid Sampling preparation: operating platform; Sampling materials, including nasopharyngeal test swab, VTM kits, inspection sheet and bar code, transport bag and hand disinfectant, to ensure the sterilization effect and validity period.

Obtain a Nasopharyngeal Flocked Swab Specimen

Obtain a Nasopharyngeal Flocked Swab Specimen

Nasal swab specimen collection method.

(1) Wet the flocked swab in normal saline.

(2) Measure the distance from nostril to ear root with a swab and mark with your fingers.

(3) Insert the swab into the nostril in the direction perpendicular to the nose (face) until the finger touches the nose, keep the swab in the nose for 15-30 seconds, and then rotate it gently for 3 times.

(4) Put the swab into the virus delivery medium, break the swab rod and place it completely in the tube.

(5) Tighten the tube cover, mark it, put it into the specimen bag and seal it.

(6) If it is necessary to collect from two nostrils, one swab should be used respectively.

(7) Store at 4 C or on ice (short term storage).

CDC recommends that all patients suspected of infection with COVID-19 use masks.

Ask the patient to take off the mask and wipe the nose with a paper towel to remove excessive secretions from the nasal cavity.

Remove the cotton swab from the package. Tilt the patient’s head back slightly so that the nasal tract is more accessible.

Let the patient close his eyes to reduce the slight discomfort caused by the operation.

Gently insert the swab into the nasopharynx along the nasal septum until resistance is felt.

Tips for nasopharyngeal swab sample collection.

The nasopharynx swab is inserted quickly. Do not hesitate. Some patients are intolerant to the operation of probing the nasopharyngeal swab into the nasal cavity, resulting in tears, foreign body feeling, etc. before the operation, ask the patients to inhale deeply in order to avoid choking and coughing.

When the cotton swab reaches the expected depth, do not continue to go deep, so as not to cause nasal mucosal damage and bleeding. During the stay, use finger strokes with the patient to read the seconds. It can distract attention, eliminate tension and motivate patients to ensure successful collection.

Never allow the patient to fully raise his head and bend the swab, which will lead to incorrect retention position of nasopharyngeal swab head and ultimately affect the accuracy of specimen collection results.

The operator can select the left / right side of the operator according to his left and right hands, and stand on the patient’s head and shoulder for operation. The patient’s head does not need to be biased to the opposite side. It is difficult to control the entry angle of the flocked swab when facing the side head, which may cause mucosal irritation. For patients with excessive tension, the operator can hold the patient’s hand and give comfort.

Quick questions and answers about nasopharyngeal swab sampling

1. Q: can carry out New Coronavirus test specimen collection personnel?

A: Qualified personnel with sampling skills after biosafety training.

2. Q: COVID-19 test specimen preferred?

A: Respiratory specimens.

Specific detection of

3. Q: infection in New Coronavirus includes?

A: Nucleic acid detection (nasal swab and pharyngeal swab); Virus isolation; Antibody detection.

4. Q: What are the key points of nasal swab collection?

A: Nasal swab: when the top of the swab reaches the posterior wall of the nasopharyngeal cavity, rotate it gently for one week.

5. Q: what respirator is used to collect COVID-19 respiratory specimens?

A: Masks N95 and above.

6. Q: how to disinfect hands after collecting samples?

A: After disinfection with disinfectant, take off the outer gloves, disinfect the inner gloves and wear new outer gloves.

7. Q: when taking off personal protective equipment, which of the following operations should be carried out first?

A: Spray disinfectant all over the body.

8. Q: What should we pay attention to when taking off conjoined protective clothing?

A: Ensure the contaminated surface of the conjoined protective clothing in the whole process, do not touch the inner clothing, and take off slowly and gently.

Contact us

Cell medical (Dongguan) Co., Ltd.
E-mail：flockedswabs@gmail.com
No. 98, Wusha street, Chang’an Town, Dongguan City, Guangdong Province, China.
Web：www.swabmanufacturer.com

Flocked Tip Swab

Flocked Tip Swab

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Flocked Tip Swab| China Flocked Swab Factory and Manufacturers.

Detection of viral nucleic acid sequence based on reverse transcription polymerase chain reaction (RT-PCR) is the main means for large-scale screening of new coronary pneumonia.

Generally, nucleic acid detection technology has the characteristics of early diagnosis, high sensitivity and specificity.

And it has the advantages of sample collection and preservation, personnel operation, nucleic acid extraction.

The performance of the kit is the cause of false negative or false positive test results.

Flocked swabs are the main samples for PCR. In the selection of raw materials, flocked glue plays a key role in the collection and release efficiency of swabs. Whether to use high-quality aqueous flocking glue is the main factor affecting the water absorption and hydrophilicity of fluff. The experiment is to compare the sample collection effects of swabs flocked with different glues.

What is a flocked tip swab？

The top of the flocking swab is a nylon fiber structure.

Nylon fibers are deposited on the surface of plastic rod in a certain direction by electrostatic field to form brush layer.

The layers are completely parallel and perpendicular to the inner rod surface.

Flocked tip swab brush head can effectively collect samples.

Flocked tip swab factory Product advantages.

The flocked swab can completely capture the cell sample through the directional friction effect of the brush fiber layer.

The capillary movement between the nylon fibers at the front end of the flocking swab can form a strong hydraulic pressure for absorbing liquid or cell line samples.

Cell samples can also be evenly and neatly concentrated on the near surface of brush fibers, so more than 95% of the samples can be released finally.

Cell Medical (Dongguan) Co., Ltd.  has many years of experience in medical application molding and flocking treatment heads and swabs.

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

Cell medical (Dongguan) Co., Ltd. Daily production of millions of flocked sampling swabs

Cell medical (Dongguan) Co., Ltd. Daily production of millions of flocked sampling swabs. flocked tip swab 

COVID-19 Sample Collection and Transport kits

COVID-19 Sample Collection and Transport kits

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COVID-19 Sample Collection and Transport kits

Since the outbreak of the new crown, we have received many customer queries about which types of swabs, media and kits can be used for sample collection and transportation of COVID-19.

Cell medical (Dongguan) Co., Ltd. produce flocked swabs, VTM kits, virus transport medium, with multiple automatic production lines.

We support custom production, OEM and so on, and develop products with customers.

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

Our VTM kits are manufactured in accordance with CDC and FDA guidelines.

Now let’s learn about sample collection and transport kits.

COVID-19 Sample Collection and Transport kits

COVID-19 Sample Collection and Transport kits

How do we collect COVID-19 samples?

Specimen collection requirements

Personal protective equipment (PPE) requirements for sampling personnel: N95 and above protective masks, goggles, one-piece protective clothing, double-layer latex gloves and waterproof boots; In case of contact with the patient’s blood, body fluids, secretions or excreta, replace the outer latex gloves in time.

Specimen type

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

2. Lower respiratory tract specimens

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

Specimen collection method

Sampling flocked swab_Sample Collection

Sampling flocked swab_Sample Collection

1. Pharyngeal swab: wipe bilateral pharyngeal tonsils and posterior pharyngeal wall with 2 plastic rod swabs planted with pile at the same time, immerse the swab head into a tube containing 3ml virus preservation solution (isotonic salt solution, tissue culture solution or phosphate buffer can also be used), discard the tail, and tighten the tube cover.

2. Nasal swab: gently insert a plastic rod swab with a flocking nylon faucet into the nasopalatine part of the nasal canal, stay for a moment, and then slowly rotate and exit. Take another plastic rod swab with polypropylene fiber head and collect the other nostril in the same way. Immerse the above two swabs into the same tube containing 3ml sampling solution, discard the tail, and tighten the tube cover.

What kind of Media do you use to transport specimens?

Since the outbreak of COVID-19, the Virus Transport Medium has played a major role. Sample and nasal swabs are used to protect samples in the sample tube with virus preservation, which improves the accuracy of detection. Virus preservation solution is a solution for virus sampling, preservation and detection. What kinds of virus preservation solution are added to the virus sampling tube?

virus transport medium

virus transport medium

There are two types of virus preservation transport Media: inactivated and non inactivated.

The following briefly introduces several principles for the selection of virus preservation solution.

Non inactivated virus transport medium:

The non inactivated type does not contain lysate.

On the basis of Hank’s, BSA (bovine serum albumin) amino acids, vitamins and other nutrients required by the virus are added, which can maintain the activity of the virus in a wide temperature range and maintain the originality of the sample to the greatest extent.

For nucleic acid extraction and detection of the virus, virus culture and separation.

Characteristics of non inactivated preservation solution:

COVID-19 Sample Collection and Transport kits Use process

COVID-19 Sample Collection and Transport kits Use process

1. It can maintain virus activity for detection or virus isolation;

2. It has no inhibitory effect on subsequent nucleic acid amplification;

3. stored in cold storage(at 2 ℃ ~ 8 ℃ ).

Inactivation virus transport medium:

Inactivation preservation solution can inactivate the virus in the sample by fully mixing the collected sample with virus lysate and virus nucleic acid preservation solution, and effectively ensure the integrity of virus nucleic acid in the sample.

About the preserved viral RNA samples: used in gene detection, enzyme-linked immunosorbent assay (ELISA), PCR detection and so on.

Inactivation preservation solution includes guanidine salt containing and guanidine salt free.

1. Guanidine salt

(1) Instantly cleaved and inactivated to reduce the risk of sampling;

(2) Stored stably at room temperature for 2 weeks;

(3) It can match most nucleic acid extraction reagents.

2. Non refined salt

(1) Inactivated instantaneously to reduce the virus sampling risk, and the virus may recover its infectivity after dilution;

(2) Stored stably at room temperature for 2 weeks;

(3) It can match most nucleic acid extraction reagents.

3. Direct expansion preservation solution

(1)Inactivated instantaneously to reduce the virus sampling risk, and the virus may recover its infectivity after dilution;

(2)Stored stably in cold storage for 24-48 hours;

(3) Directly added to the nucleic acid amplification system as a template;

(4) Match most nucleic acid extraction reagents and nucleic acid release agents.

 

Flocked Swab Meaning

Flocked Swab Meaning

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Flocked Swab Meaning

This article will introduce what is the flocked swab, the purpose of the flocking swab, the application of the COVID-19 flocked swab and the material of the flocked swab, etc. The flocked swab manufacturer introduces. Give you a comprehensive understanding of flocking swabs.

what is the flocked swab?

Flocked Swab Meaning

Since the outbreak of COVID-19, the word “nasopharyngeal swab” has become a high-frequency word we talk about every day.

In recent months, the new crown pneumonia epidemic broke out again in countries all over the world. It’s worrying to watch the data released by WHO every day!!!

Flocked swab material

The flocked swab is made of nylon fiber flocking technology, and the front end is coated with nylon short fiber fixed vertically so that there is no absorption hole in the sampling area of the whole sampling swab, and the sampling sample will not be dispersed and retained in the fiber, which is conducive to faster and more efficient elution.

Traditional cotton swabs can not completely collect and elute samples while flocking swabs can elute 95% of samples. Therefore, the use of flocking swabs has great advantages for various sample collection applications.

The flocked swab is to deposit nylon fibres on the surface of the medical ABS rod in a certain direction through an electrostatic field to form a brush layer.

What is the purpose of flocked swabs?

Flocking swabs are the best choice for nucleic acid detection because they can better collect cell or biological samples at the collection site and release samples quickly.

Application: forensic medicine, DNA, microorganism, virus sampling, Oral swab, nasal swab etc.

What are flocked swabs used for in COVID-19?

The autumn and winter communication season is a period of the high incidence of common cold and influenza, and the most important means to control the epidemic situation is to select real patients with new crown pneumonia from a large number of respiratory tract patients.

At present, the most effective and widely used new crown sampling methods are nasopharyngeal swab and oropharyngeal swab sampling.

Flocked Swab Meaning _Application of flocking swab in COVID-19

Flocked Swab Meaning _Application of flocking swab in COVID-19

Nasopharyngeal swab collection method.

1. Keep the patient’s head still and remove the secretions on the middle surface of the anterior nostril;

2. Measure the distance from the nose tip to the earlobe with a swab and mark it with your fingers. Insert the swab into the nasal cavity in the direction perpendicular to the nose (face). When encountering resistance, it reaches the posterior nasopharynx, keeps the swab in the nose for 10 ~ 15 s, rotates it gently for 3 ~ 5 times, and take out the test flocked swab.

According to the American Society of Microbiology guidelines for the submission of clinical microbial specimens, the nasopharyngeal swab should be twisted on the nasopharyngeal mucosa, retained for 10-15 seconds, and then removed.

Feeling of nasal flocked swabs sampled by U.S. netizens.

netizens 01

netizens 01

It’s hard, and the tough guy still cries.

I have experienced both sampling methods.

It is not a painful cry, but a stress response caused by strong stimulation of the weak nasopharyngeal mucosa, with tears and tears.

netizens 02

netizens 02

No, as a girl, I don’t feel much about the nose swab sampling, except its excitement went to my head.

netizens 03

netizens 03

The more serious one is like eating mustard oil, and the lighter one is like blowing out your nose for several days.

Our netizens are so cute.

About oropharyngeal swab sampling.

oral swab sampling process_ Flocked Swab Meaning

oral swab sampling process_ Flocked Swab Meaning

Feeling of oral flocked swabs sampled by China's netizens.

Feeling of oral flocked swabs sampled by China’s netizens.

Pharyngeal(oral) swab: the collection process is faster (just a few seconds) and less painful, but you may feel nausea and vomiting, and some people have no obvious reaction.

As we are in the epidemic period, we should improve our awareness of self-protection when doing nucleic acid testing.

Flocked swab manufacturer introduces Cell medical (Dongguan) Co., Ltd.

Cell medical (Dongguan) Co., Ltd. is a comprehensive high-tech biotechnology enterprise.

We have invested a lot of scientific research strength to tackle key technical problems.

At present, our virus preservation tube and flocked swab have shown an irreplaceable role in the detection of new infectious diseases.

We support custom production, OEM and so on, and develop products with customers.

Welcome to leave a message for a consultation!

CONTACT US

Email:flockedswabs@gmail.com

What is a Nasopharyngeal Swab?

What is a Nasopharyngeal Swab?

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What is a Nasopharyngeal Swab?

COVID-19 Nucleic acid swab test  is a very effective and effective measure to prevent and control the new crown pneumonia epidemic.

The upper respiratory tract of human body includes nasal cavity, pharynx and throat.

That is to say, if people are infected with COVID-19, they can extract the nucleic acid of the virus in the nasal cavity, pharynx and larynx in 96 hours.

Therefore, we usually sample these locations in the rapid detection of new crown nucleic acids.

How to collect a nasopharyngeal swab?

Nasal swab sampling process

The first step is to collect secretions.

First, the medical staff will use a pharyngeal swab to wipe the subject’s nasal cavity or throat tonsils to collect salivary secretions.

nasal swab collection method

nasal swab collection method

The second step is to reserve samples.

After collecting the sample, immerse the nasopharyngeal swab in the preservation solution and screw on the tube cover to retain the sample.

The third step is to send samples for inspection.

Then, put the samples into clean sealed bags and send them to relevant parts for testing.

The fourth step is nucleic acid extraction.

Relevant departments will send the samples to the designated laboratory for nucleic acid extraction experiment.

Step 5: fluorescent PCR nasopharyngeal swab.

After collecting nasal samples, the experimenter uses fluorescent PCR to detect whether there is amplification reaction.

That is, to judge whether it is negative or positive.

Step 6:Finally, Receive test report.

Finally, according to the fluorescent PCR reaction results of nucleic acid detection, the nucleic acid detection vehicle inspection report is obtained, and I can query the results.

Sampling swab material

The sampling swab used for nasopharynx collection consists of a narrow rod made of a short plastic rod, one end of which is covered with an absorbent material. Such as cotton, polyester or flocked nylon.

The swab used for virus sampling should directly contact the sampling part.

The material of the sampling head is closely related to subsequent detection.

And the material requirements of virus sampling swab will be very high.

The virus sampling swab head shall be made of polyester (PE) synthetic fiber or artificial fiber.

Forbidden to use calcium alginate sponge or wooden swab (including bamboo stick).

However, calcium alginate and wood components can also absorb proteins after immersion in the preservation solution, and even inhibit the subsequent PCR reaction.

What are the advantages of using flocked sampling Nasopharyngeal swabs?

1. Flocked swabs provide better sampling.

Flocking swabs are a good choice for rapid diagnostic tests because they can better collect cells or organisms at the collection site and ensure the rapid release of the whole cell.

2. Enhanced diagnostic sensitivity.

Professional flocked technology turns each fiber into a velvet like swab, thus creating hundreds of thousands of contact points to better collect and release the collected samples.

Compared with non aggregated swabs, the increase in the number of target cells helps to improve the sensitivity of rapid diagnostic tests.

3. Rapid elution.

Their stable and reliable performance and excellent absorption and elution ability.

4. Easy handling and transportation.

sterilized and packaged separately, and the sterile swabs.

 

 

 

China Sterile Flocked Swab

China Sterile Flocked Swab Factory and Manufacturers

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China Sterile Flocked Swab GMP Factory and Manufacturers.

Cell medical (Dongguan) Co., Ltd. specializes in producing flocked swabs. Such as pharyngeal swabs, nasopharyngeal test swabs, oral swabs, nasal swabs etc.

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

Our GMP Factory-We support custom production, OEM

Our GMP Factory-We support custom production, OEM

·OEM / ODM: support

·Certificate: CE / FDA / ISO certification

·GMP factory: Yes

·Supply capacity: 500000-1000000 pieces / month

·Size: 150mm

Sterile Flocked Swab flocked swabs manufacturers

Sterile Flocked Swab flocked swabs manufacturers

The DNA extraction flocked swab produced by our company is made by nylon fiber flocked technology. The front end is coated with nylon short fiber fixed vertically. There is no absorption hole in the whole collection swab collection area, and the DNA cells will not disperse and remain in the fibers, which is conducive to faster and more efficient elution.

Independent sterilization packaging.

The benefits of flocked swabs for COVID-19 viral collection.

1. Sample collection process: The unique structure of the front end of the flocking swab can greatly increase the number of samples collected.

2. Sample dissolution process: The brush-like layer structure can release almost all collected samples. There are more advantages for the collection of trace DNA.

3. According to different analysis items, the corresponding soft or brush texture swabs have reached the maximum collection.

4. Disposable sterile sampling swab rod with breaking point.Learn more

5. Flocked swab technology improves the adsorption/release of samples and the sensitivity of the analysis.

6. The front flocked swab sampling is more precise and suitable for extracting more cells from the nasopharynx.

7. Packed in a transparent plastic tube to avoid biological pollution.

In short, the upright nylon fibre is like a soft brush, which can collect more cell samples. The capillary action between nylon fibers enhances the load of aqueous samples, and the samples are concentrated on the surface of the swab, which is easier to elute. Nylon flocking swab can absorb and release more samples.

Cell medical (Dongguan) Co., Ltd.  –China Sterile Flocked Swab Factory and Manufacturers.

Email:flockedswabs@gmail.com

 

 

Sample Universal Viral Transport Medium Kits

Sample Universal Viral Transport Medium Kits

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Sample Universal Viral Transport Medium kits

Cell medical (Dongguan) Co., Ltd. disposable sample universal viral transport medium kits are composed of flocked swabs and test tubes with virus preservation solution (VTM).

The appearance of VTM is clear or red, and there are no precipitates, lumps and other insoluble visible foreign matters.

For collecting, storing and transporting human nasopharyngeal virus samples. Such as COVID-19, mycoplasma,  Chlamydia specimens collection, transportation and preservation.

Universal Viral Transport Medium for Viruses 

Test principle:

Virus: Composed of a nucleic acid molecule and protein or only protein, and the individual is small and the structure is simple. Because there is no cell structure, the virus cannot replicate itself, but invades its genes into the host cell, using the latter’s replication system to replicate new viruses. After the virus sample is collected, in order to maintain the viability of the virus sample and prolong the survival time of the virus in the sample, the sampling swab will be stored and transported in the transport medium.

Viral transport medium composition and inspection principle:

Viral Transport Medium

Viral Transport Medium

1. A combination of multiple antibiotics has broad-spectrum anti-bacterial and anti-fungal effects.

2. As a protein stabilizer, bovine serum albumin (BSA) can form a protective film on the protein shell of the virus, making it difficult to decompose and ensuring the integrity of the virus.

3. The neutral environment constructed by Hank’s buffer helps increase the survival time of the virus and the stability of infection.

4. Phenol red is an acid-base indicator, the discolouration area is 6.6 (yellow)-8.0 (red), and it will be red at 7.2-7.4.

The most stable pH of the outer protein of the virus is 7.2-7.4, which is also the pH range of Hank’s buffer.

If contaminated moulds or bacteria are not inhibited by antibiotics, they will multiply and release carbon dioxide to lower the pH. When the pH value is lower than 7.2-7.4, the stability of the outer protein of the virus will decrease and the decomposition will be accelerated. At this time, the appearance of the sampling solution will change from red to yellow.

What are the main components of  Viral Transport Medium(VTM)?

Hank’s solution base, gentamicin, fungal antibiotics, cryoprotectants, biological buffers and amino acids.

On the basis of Hank’s, adding HEPES and other virus stabilizing components can maintain virus activity in a wide temperature range, reduce virus decomposition speed and improve the positive rate of virus isolation.

How to use a universal viral transport medium?

Please read the instructions carefully before use.

Working conditions: room temperature

1. Take out the virus preservation solution.

2. Use a sampling swab for sampling.

3. Insert the swab into the tube containing virus preservation solution, break the tail, leave it in the preservation solution tube, cover the tube cover.

4. Store it at 2-4 ℃ and use it within 48 hours.

If it needs to be stored for more than 48 hours, please store it in the refrigerator at – 20 ℃.

VTM swab kit COVID-19: diagnostic vector transport medium.

VTM swab kit COVID-19: diagnostic vector transport medium.

Our VTM product features and advantages.

1. A virus transport medium (VTM) in line with the recommendations of who and CDC.

2. The product is safe, environment-friendly and non-toxic.

3. The universal viral transport medium adds special virus stabilizing components to maintain the structural stability of virus core protein and outer membrane protein for a long time.

4. It is especially suitable for influenza virus and other samples sampled through upper respiratory tract swabs.

5. Compatible with other detection reagents.

6. The reagent itself has a colour indication function, and obvious color change will occur when the product deteriorates, so as to avoid misuse caused by improper preservation.

Saliva Sample Collection Kit :Disposable saliva DNA RNA sampling tube

Saliva Sample Collection Kit :Disposable saliva DNA RNA sampling tube

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Saliva Sample Collection Kit :Disposable saliva DNA RNA sampling tube.

Non-invasive ! No blood, No needle.

No risk of infection, no need accompany of Doctor, no need refrigerate.

people can collection their Saliva sample at home and mail to Lab for DNA test.

what are the differences between the nasal swab and saliva tests for covid 19?

What is saliva collection kit?

In recent years, with the development of medicine, the examination technology has become more and more high-end. And the examination items have become more and more accurate.

Saliva is a complex mixture, which not only contains various proteins. It also contains DNA, RNA, fatty acids and various microorganisms. Therefore, it is possible to diagnose diseases by detecting saliva. Gene detection and analysis.

Saliva collector plays an important role in the process of collecting, transporting and storing saliva samples.

It is noninvasive and easy to self-management, and reduces the risk of medical staff exposure.

Saliva Collection Kit suitable for SARS-CoV-2 sample collection.

Nucleic acid detection is the most widely used new crown detection method.

Including PCR nasopharynx swab, oropharyngeal swab  and saliva sample test.

High precision. As long as the collection, breeding and separation of nucleic acids are successful, there is basically no false positive or false negative.

But the sampling staff are easy to be exposed and the risk is high; With one more step of extracting nucleic acid, unskilled technicians are likely to fail to extract, resulting in false negative, or pollute with other people's samples, resulting in false positive.

 

How to use saliva sample collection kit

saliva process 01

 

1.Before collecting saliva,relax your cheeks andgently massage cheeks with fingers for 15~30 seconds to produce saliva. Gently

2mL  saliva into thefunnel until the liquid saliva(non-bubble)reaches the height of 2.0 ml scale line. Saliva samples collected shall be free of impurities and sputum.Don't spit all over the vial.

saliva process 02

 

2.Hold the Hold the storage vial in hand and keep it upright, then insert the bottom of storage vial into the saliva collection cup, and screw down. Then the storage liquid in the vial will flow into the saliva collection vial.

Saliva Sample Collection sampling process 03

 

3.Keep the collecting vial upright, unscrew the funnel, take out the clean saliva collecting vial cap from the packing box,screw and tightenit on the saliva collecting vial. The vial caps have a chok-ing hazard. Keep out of reach of children.

Saliva process 03

 

4.Shaking Turn the collecting vial upside down for 10 times to fully mix saliva ten times and preservation solution.

Saliva process 05

 

5.Take out a bar code from the packing box and stick it on the saliva collecting vial, then put the collecting vial with bar code and two bar codes into the sample bag for storage, transportion or testing, and the remaining bar code is kept by the user for subsequent information feedback.