Category Archive Nasopharyngeal swab

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How to use Huachenyang oral swab 98000

How to use Huachenyang oral swab 98000

Steps for usage

Step 1: tear off the sealing paper on the oral swab packaging bag, and gently take out the sampling swab from the bag. Note that the sampling swab should not touch other items other than the inner wall of the oral cavity to avoid contamination.

Step 2: Hold the oral swab to one side of the mouth, rotate the inner wall mucosa for 10-15 times, and then move it up and down 5-10 times to wipe with moderate force. It is advisable to stick to the inner wall of the oral cavity to ensure the sampling swab The oral mucosa exfoliated cells can be dipped everywhere; so according to the same method, collect them on the other side of the inner wall of the oral cavity.

Step 3: After the collection is completed, please take the oral swab out of the mouth and put it into the sampling test tube, break off the sampling swab handle at the place with the broken mark, cover the sampling test tube cover, and finally take out the barcode and paste it on the sampling test tube cover The junction with the pipe is sealed and sent for inspection in time.

Precautions

(1) Prepare a cup of normal saline, drink about 50-100 ml of saline and rinse your mouth thoroughly for about 10-20 seconds, then spit it out.

(2) Gently tear open the packaging bag of the oral swab as much as possible, hold the handle of the oral swab with your hand (note: do not touch the head of the sampling swab with your hands and other objects), and extend the left side of the sampling stick out of the mouth The swab enters the inner wall of the water chamber (touch the inside of the cheek on the left side), and then roll it up and down with the strength of brushing (wipe 15 to 30 times).

(3) In fact, use the same method to take a second buccal swab and extend it to the right side of the inner wall of the injection cavity for sampling. Continue to scrape cell DNA samples.

(4) Not only put the collected oral swab into the cell preservation solution and break the head, put it into the sampling tube, paste the barcode, and put it in the back bag, but also write down the name, date and other relevant information.

(5) Finally, complete the sampling and send to the laboratory.

(6) Take care not to touch the sampling head with hands and other objects.

(7) Do not smoke, drink, eat, etc. 30 minutes before sampling.

(8) In fact, oral swabs are disposable products and should not be used twice. Do not use if the packaging is damaged.

Advantage

Huachenyang Nylon Flocking Swabs have undergone a large number of clinical experiments to show that, compared with ordinary sterile cotton swabs, Huachenyang Nylon Flocking Swabs have a better effect on the collection and transportation of clinical microbial specimens. This is especially true for those specimens that cannot be submitted for inspection in time and have been placed for too long.

1. Because of the unique spray-type implanting nylon fiber technology, the collection and release of specimens are increased.

2. The swab has a total length of 14.5cm, and the plastic rod has a unique breakable design.

3. The fluffy texture can collect more target analytes.

4. There is no residual specimen volume, which speeds up the process of specimen processing.

5. The swab is sterilize and individually package.

How to use Huachenyang oral swab 98000

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What are the characteristics of oral swab 98000FS

What are the characteristics of oral swab 98000FS

In fact, only using ordinary medical cotton swabs, different people will collect somatic cells from the oral cavity. Therefore, there are certain deviations in frequency, amplitude, sample cutting volume, and the number of templates used to increase these cells, resulting in sampling swabs. The storage effect of the DNA temperature state is unstable, which greatly affects the subsequent storage and test results.

Now Huachenyang’s toothbrush-type oral swab not only solves the problem of high cell collection and preservation efficiency, but also does not need to worry about some deviations caused by factors such as the frequency and amplitude of scrubbing, which will affect the subsequent preservation and test results.

Features

1. Because the novel pusher design makes it easy to push the cotton swab directly into the sampling tube after sampling, and the sampling cotton swab will fall into the sampling tube, it makes the operation easier.

2. Huachenyang oral swabs use polyester fiber technology, so it can speed up sample absorption and speed up sample release.

3. Maximum sample elution and transfer, especially for the collection of trace DNA samples.

4. In fact, you can choose different storage solutions for different types of samples.

5. Adopt internationally universal medical dialysis paper-plastic packaging which is convenient for sterilization.

6. Special treatment with antibacterial agent to prevent microbial contamination.

7. Independent packaging, sterile, no inhibitors, to ensure reliable results.

What are the characteristics of oral swab 98000FS

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Correct use of Huachenyang nasopharyngeal swab

Correct use of Huachenyang nasopharyngeal swab

Nasopharyngeal swabs are made of special plastic or metal with a long and flexible long handle. The top is make of polyester fiber, rayon and mold nylon.

Sampling of nasopharyngeal swabs is a very common clinical task, which did not appear after the outbreak. Nasopharyngeal swab sampling can be use to assess whether there are respiratory viruses or bacterial infections in adults and children, and is of great significance for the diagnosis of respiratory infections. There are also many influencing factors in the sampling process. If the operation is improper, it will directly affect the inspection results and even lead to misdiagnosis.

Instructions

When sampling a nasopharyngeal swab, the direction of the swab should be parallel to the upper palate, and the tip of the swab should face the direction of the earlobe, not the top of the head. If the swab encounters resistance when passing through the nasal passage, you need to back the swab and try Change the angle and re-enter.

1. The subject’s head is tilted back (approximately 70°) and stays still.

2. Use a swab to estimate the distance between the root of the ear and the nostril.

3. Insert from the nostril straight to the face, and the deepening interval should be at least half the length of the earlobe to the tip of the nose. After encountering resistance, you should reach the nasopharynx, stay for a few seconds to take secretions (generally 15~30s), and rotate the swab 3~5 times.

4. Rotate gently to take out the swab, and put the swab head into the sampling tube containing the virus preservation solution or the cell preservation solution containing RNase inhibitor.

5. Break off the sterile swab rod at the top, discard the tail, screw the cap of the tube tightly and close it with a parafilm.

Precautions:

1. Please do not take antibiotics a few days before the nasal swab.

2. Do not rinse your mouth with disinfectant or smear the local lesion a few hours before the nasal swab.

3. You can’t eat, smoke, or drink a few hours before the nasal swab.

Correct use of Huachenyang nasopharyngeal swab

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How to use a sterile swab

How to use a sterile swab

Sterile swabs, the full name of single-use sterile sampling swabs, are used in bacteriological sample processing, COVID-19, nasal swab sampling, throat swab sampling, oral swab sampling, virological cell culture, DFA testing, Rapid and direct testing, enzyme immunoassay testing, polymerase chain reaction and molecular diagnostic-based testing, as well as forensic identification are ideal. It can also be used for throat sampling of respiratory viruses such as influenza, swine influenza, avian influenza, hand, foot and mouth.

The sterile flocking swab is suitable for humans and animals. It has advantages over other DNA test samples in design. Its unique test sample matrix and quick release interface are more conducive to efficient cell collection and maximize DNA yield. The test piece has been sterilized with ethylene oxide and passed the test for human DNA contamination.

Sterile swabs are suitable for skin surface sampling, such as DNA collection, oral cells, surface, microorganisms, bacterial and virus detection sampling, etc. The advantage is that it is easier to use than traditional swabs. The collection and release volume is large, and it can be broken. Traditional swabs The lab staff also need to use scissors to cut it, which is too troublesome and too time-consuming. Our new flocking one-time sampling swab greatly reduces the time cost.

Instructions

Pharyngeal swab sampling

1. Open the swab package first, take out the swab carefully, and be careful not to touch anything before sampling to avoid contamination.

2. The sampler can first use the tongue depressor to remind the patient to make an “ah~” sound.

3. Raise the patient’s palate to expose the posterior pharyngeal wall. Pass the swab across the base of the tongue to the back of the pharynx (lesions) and quickly wipe the palatal arch, pharynx and tonsil secretions on both sides (15-30 seconds).

4. Put the sampled swab into the virus sampling tube, and break the swab rod at the mouth of the tube cover to completely place it in the tube.

5. Tighten the cap of the tube, make a mark, and put it in a biosafety bag and seal it.

6. Submit the specimens for inspection in time.

Nasal swab sampling

1. Open the swab package first, take out the swab carefully, and be careful not to touch anything before sampling to avoid contamination.

2. Ask the patient to keep his head still and remove the secretions on the surface of the anterior nasal cavity (it is best to let the patient blow his nose first).

3. The sampler can stand on the side of the patient, reducing the chance of infection caused by coughing and sneezing, and at the same time alleviating the pressure of the sampler.

4. Measure the distance from the nostril to the root of the ear with a swab and use the hand as a mark.

5. Slowly insert the nasal swab into the nostril (toward the earlobe), with a feeling of touching the wall, let the swab stay in the nose for 15-30 seconds, and then gently rotate it 3 to 5 times.

6. Take out the swab slowly and put it vertically into the virus sampling tube.

7. At the breaking point, break off the swab, discard the tail, and place the swab completely in the tube.

8. Tighten the cap of the tube, make a mark, and put it in a biosafety bag and seal it.

9. Submit the specimens for inspection in time.

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The scope of application of flocking swabs

The scope of application of flocking swabs

Flocking swabs have a wide range of uses, and are very useful in bacteriological sample processing, virological cell culture, DFA testing, rapid and direct testing, enzyme immunoassay testing, polymerase chain reaction and molecular diagnostic-based testing, as well as forensic identification. ideal. It can also for throat sampling of respiratory viruses such as influenza, swine flu, avian flu, hand, foot and mouth.

The principle of flocking swab in DNA collection and precipitation

1.Through the directional friction effect of the swab fiber layer, the cell sample can be completely captur.

2.Since the cell samples are concentrat near the surface of the swab fiber, more than 95% of the sample can be released eventually.

3.The capillary movement between the nylon fibers on the top of the flocking swab generates a powerful hydraulic pressure to absorb liquid or cell samples.

What are the advantages of flocking swabs for DNA collection?

1.Sample collection process: The unique structure on the top of the swab can greatly increase the number of samples collected.

2.Sample dissolution process: The sample collect by the swab is basically located on the surface of the swab. Therefore 95% of the sample can be releas, which can be regard as almost all samples can be wash off.

Why flocking swabs are more beneficial for micro-DNA collection

1.The top of the traditional cotton swab is make of cotton fiber entangl internal structure. When sampling, the fiber clusters will be scatter and retain on the fibers. As a result, the precipitation efficiency of the original low-content DNA is reduc.

2.The top of the flocking swab has a unique structure, which can almost completely extract and separate trace DNA. Therefore, the flocking swab has a more obvious advantage in collecting trace DNA.

The scope of application of flocking swabs

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Use skills and introduction of virus sampling tube

Use skills and introduction of virus sampling tube:

Virus sampling tube-suitable for collecting and transporting new coronavirus, influenza virus, avian influenza (such as H7N9), hand, foot and mouth virus, measles and other virus specimens, as well as mycoplasma, ureaplasma and chlamydia specimens.

② The virus sampling tube must be transporte within 48 hours under refrigeration (2-8°C).

Long-term storage of viruses and relate samples in -80°C or liquid nitrogen environment.

Sampling method for collecting virus through virus sampling tube:

①. Measure the distance from the tip of the nose to the earlobe with a cotton swab and mark it with your fingers.

②. Insert the sampling cotton swab into the nasal cavity in the direction perpendicular to the nose (face).

③ The distance between the swab should be at least half the length of the earlobe to the tip of the nose.

④. Leave it in the nose for 15-30 seconds, gently rotate it 3-5 times, and then take out the swab.

It is not difficult to see from the method of use that sampling is a technical task,

which is difficult and easy to contaminate.

The quality of all collected samples is directly related to subsequent testing.

Requirements for sampling swabs:

If the viral load of the collected sample is low, it is easy to cause false negatives and difficult to diagnose.

Some sampling swabs have low viral load, improper break points, and the operator is not easy to break.

This not only limits the sampling efficiency, but also It is easy to cause false negatives in nucleic acid testing.

Therefore, the sampling cotton swab head should use synthetic fiber flocking instead of cotton or calcium alginate sponge;

the material of the cotton swab handle is recommend to use hollow polystyrene (PS) extrusion tube or polypropylene (PP) injection molding indentation tube instead of using Wooden sticks or bamboo sticks.

Why can’t we use wooden sticks or bamboo sticks as swab sticks?

Because wooden sticks or bamboo sticks containing calcium alginate are broken and place in the preservation solution, they will absorb protein and even interfere with subsequent tests.

Contraindications of sampling swabs:

① Cotton fiber has strong adsorption power to protein and is not easy to wash.

② The length of the swab should not be too short, and the breaking position should not be too close to the head of the swab,

so as not to contaminate the patient’s body fluids during the operation;

③ The location of the breakpoint should be reasonable,

and the sampling pipe should be broken to avoid contamination caused by the overflowing liquid in the pipe.

④ The virus protection function of the virus sampling tube can keep the virus activity in a lower temperature range.

⑤ Reduce the speed of virus decomposition and increase the positive rate of virus isolation.

Use skills and introduction of virus sampling tube

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What is a throat swab

What is a throat swab
A throat swab is a swab used to check whether the throat is diseased and to sample the throat. It can be say to be a detection method to understand the patient’s condition, oral mucosa, and pharynx infection.

Because the pharynx is affected by infections caused by external bacteria when the body’s body or local resistance is reduced,

the doctor needs to collect some cells or viruses for observation when we seek medical treatment, so as to understand the patient’s disease. Illness.

How are throat swabs collected?

When sampling a throat swab:

  1. First, check personal information with the subject.
  2. Then tear off the outer packaging of the sampling swab and take out the sampling swab.
  3. Let the subject open his mouth to make an ah sound, exposing the throat, and if necessary, press the tongue down with a tongue depressor (lightly press the front 2/3 of the tongue and the back 1/3).
  4. Take out the sterile swab, gently and quickly wipe the bilateral pharyngeal tonsils and the back wall of the pharynx 3 times, and put the swab head into the preservation solution.
  5. At the mouth of the preservation tube, fold off the tail of the swab firmly, discard the tail, tighten and cover the tube cap (strictly perform aseptic operation).
  6. Check the patient’s name again after sampling.
  7. Put it into a sealed bag and a special transfer box, and quickly send the sample to the laboratory for inspection.

The advantages of throat swab products:

  1. The collected samples have a release rate of more than 90%.
  2. It can be operated with one hand to avoid pollution and is convenient to use.
  3. Ethylene oxide sterilization, independent packaging.
  4. Unique craftsmanship increases the comfort of the collected person.
  5. Under normal temperature conditions, samples can be store for 12 months.
  6. Pharyngeal Swab The swab set is a combination of swab and preservation solution,
  7. which cooperates with one time/person to collect swab samples.

What is a throat swab

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Advantages and collection methods of nasal swabs

Advantages and collection methods of nasal swabs

Advantages of nasal swabs:

1.The nasal swab adopts the spray-type implanted nylon fiber technology, which is first-class in the domestic and foreign markets.

This material can absorb more samples, effectively increasing the collection and release rate of cell and virus samples, and The sample is easier to fall off, so that the final analysis result can be more accurate.

2.The nasal swab adopts a medical ABS plastic rod with a breakable design to facilitate the transportation of specimens.

3.Excellent quality can double the collection effect of swabs, from the 20% sampling and release rate of traditional swabs to the current 95% collection and release rate,

thus ensuring high results reliability.

4.Ethylene oxide sterilization, independent packaging, equipped with virus sampling tube,

convenient transportation of culture medium, and storage at room temperature.

Advantages in nasal swab sampling:

1.It can stay in the pharynx for a longer period of time in order to obtain more sufficient samples.

This is also the reason why the positive rate is higher than that of oropharyngeal swabs reported in the literature.

2.The patient is well tolerated, and can basically take samples without anesthesia after proficient operation,

but the surface anesthesia and contraction of the nasal mucosa can be performed at the beginning.

3.The exposure risk of the sampler is lower than that of the oropharyngeal swab, because when sampling,

we can stand behind the patient and ask the patient to pull down the mask to expose only the nostrils and cover the oral cavity without directly facing the patient’s oral cavity.

And almost no pharyngeal reflex, a few patients may have sneeze reflex after sampling, the patient can be covered by elbow or tissue,

and because the sampler is not in front of the patient, the risk of exposure is lower, so the sampler’s heart pressure will not be so great .

Advantages and collection methods of nasal swabs

Nasal swab collection method:

1.Please keep the patient’s head still and remove the secretions on the surface of the anterior nasal cavity.

2.Use a swab or other tool to measure the distance from the nostril to the base of the ear and mark it with your finger.

3.Gently and slowly insert the swab through the nasal cavity.

4.Swab to the finger mark or stay for a few seconds after encountering resistance to absorb secretions

(usually stay for 15-30 seconds, then gently rotate 3 times).

5.Rotate gently to take out the swab and place it in the virus sampling tube (in the transfer medium);break off the tail rod of the swab along the breaking point to completely place it in the tube. Tighten the cap of the tube.

6.If you need to collect from two nostrils, another swab should be used.

7.Note the information of the person being collected and send it to the inspection room for inspection as soon as possible.

Advantages and collection methods of nasal swabs

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Specific summary and sampling method of virus sampling tube set

Specific summary and sampling method of virus sampling tube set

Virus sampling tube product summary:

Huachenyang virus sampling tube is suitable for nucleic acid extraction and later virus isolation of various influenza virus, avian influenza virus, coronavirus, hand foot mouth virus, rubella and measles virus samples. It is also suitable for the collection and transportation of Chlamydia, mycoplasma and Ureaplasma urealyticum. Samples are usually collect from the mouth, throat, nose, anus and other parts of the human body.

(1) Sample preservation solution:

When using virus lysis solution and virus nucleic acid storage solution,

it is necessary to mix the liquids evenly before use.

The virus lysate can not only inactivate the virus in the sample,

but also greatly reduce the risk of laboratory infection.

The virus preservation solution is not only suitable for the nucleic acid preservation solution formula for virus preservation,

and ensures the high efficiency and integrity of virus preservation,

but also is transported and stored at room temperature for a long time.
Built-in glass beads make it easier to elute,

which is more conducive to the release of viruses and other microorganisms in the sample preservation solution.

(2) Sampling tube:

The pipe body and cover are make of polypropylene, which will not deform at high temperature and high pressure (121 ℃ for 15 minutes) and remain brittle at low temperature (196 ℃). Resistance to static extrusion and dynamic impact. Round skirt at the bottom, conical design, centrifugal and shock resistant. It contains sample preservation solution for sample preservation to prevent leakage.

(3) Preservation solution:

It contains antibacterial ingredients, which can not only prevent bacterial and fungal contamination,

but also prevent long-term cryopreservation of viruses and avoid drying of samples,

so that existing bacteria can survive for a long time.
Not only can it prevent the growth of other bacteria and fungi in the sample,

it can also stabilize the virus and provide maximum recovery.

(4) Sampling swab:

The sampling swab is a flocking sampling head, which is non-toxic to cells and viruses, and does not contain RNase.

It can not only collect and release virus samples to the greatest extent, but also ensure the accuracy of PCR detection results.

The plastic rod is made of ABS material and has a unique breakable design. Not only did no tiny fragments fly out when they were broken, but the kit was packaged in international paper and plastic and sterilized by gamma ray.

(5) Nasal swabs:

The ultra flexible plastic rod is ergonomically design, which not only optimizes the collection efficiency, but also improves the comfort of patients. Nylon flocking can strongly promote the absorption of liquid samples.The adsorption surface of the sample can be elute more easily and quickly, thus reducing the manual treatment of the sample. It is suitable for nasopharynx and nose sampling and has a unique design of break point.

(6) Throat swab:

The utility model is in line with the ergonomic design,

which not only optimizes the collection efficiency, but also improves the comfort of patients in extracting samples.

Nylon flocking can strongly promote the absorption of liquid samples.

The adsorption surface of the sample can be elute more easily and quickly, thus reducing the manual treatment of the sample.

Suitable for throat sampling; suitable for collecting tracheal samples, cells or liquid for DNA testing.

Specific summary and sampling method of virus sampling tube set

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What conditions must a good virus sampling tube meet?

What conditions must a good virus sampling tube meet?

The virus sampling tube is used for the collection, storage and transportation of new coronavirus,

influenza virus, avian influenza (H7N9, etc.),

measles and other virus specimens, mycoplasma and chlamydia specimens.

Why choose a professional and excellent virus sampling tube?

Because the quality of the collected samples is directly related to the follow-up inspections,

if you use bad sampling swabs and virus preservation solutions,

the collected samples will not contain high levels of virus.

As the small living environment changes, the phases will decompose,

which is easy Affect the test results, it is difficult to confirm the diagnosis or easy to be misdiagnosed.

Therefore, by using a professional virus sampling tube, the effectiveness of the sample can be guaranteed,

and false negative and misdiagnosis of the virus can be reduced!

What conditions must a good virus sampling tube meet?

 

The biggest feature of an excellent virus sampling tube is that

Whether it’s the number of samples collected or the number of viruses released,

Are much higher than ordinary virus sampling tubes,

and it ensures the activity and integrity of virus particles, providing the primary guarantee for subsequent virus isolation and nucleic acid detection .

(1) Sample validity:

The non-inactivated virus preservation solution must maintain the activity of the pathogenic infectious agent,

and it is best to maintain the activity of the virus at room temperature. Meet the time from sample sampling to laboratory testing.

It is necessary to limit and prevent the reproduction of symbiotic microorganisms to ensure the reliability of diagnostic tests

The inactivated virus preservation solution needs to inactivate the virus but maintain the nucleic acid of the virus.

(2) In terms of safety:

Because the virus sampling tubes are basically all infectious materials, and some are highly pathogenic infectious materials,

the requirements for packaging containers are very strict, and they need to meet safety and ensure that the liquid does not leak during transportation.

 

Manufacturer introduction:

Shenzhen Huachenyang Technology Co., Ltd. has many years of professional experience in the production of virus sampling tubes.

The unique built-in bell mouth design prevents leakage during transportation. The flocking swabs for virus sampling tubes are nearly 80% higher than traditional swabs.

We have added ingredients that not only prevent the spread of bacteria in the virus sampling tube, but also ensure the accuracy of the test.

For customers, we provide complete quality assurance, professional technical answers, and patient and thoughtful after-sales service.

We have become sampling swabs for many domestic and foreign scientific research institutions, tertiary hospitals, disease prevention and control centers, genetic testing companies and other medical institutions and scientific research institutions.

And the designated supplier of products such as virus sampling tubes.

Since its establishment, Shenzhen Huachenyang Technology Co., Ltd. has many years of R&D, production and sales experience in biomedical technology and other fields.

It has grown into a large-scale domestic research and development and production of sampling swabs, virus sampling tubes, reagents and other products.

A comprehensive enterprise with sales and sales, has been helping medical and scientific research workers. We look forward to seeing you!