Medical mask special for enriching and sampling respiratory tract transmission pathogens

Abstract

The invention discloses a medical mask special for enriching and sampling respiratory tract transmission pathogens. The medical mask comprises a main body protective layer, a resin nose bridge strip and ear bands, the main body protective layer is sequentially provided with a non-woven fabric protective layer, a melt-blown fabric filter layer, a non-woven fabric isolation layer, a melt-blown fabric pathogen enrichment layer and a non-woven fabric skin care layer from outside to inside, and cutting lines are arranged on the melt-blown fabric pathogen enrichment layer and the non-woven fabric skin care layer. According to the sampling mask, five-layer design is adopted, the outer three layers are used for filtering external dust and pathogens, and cross contamination of the external pathogens to the inner layer is avoided; the melt-blown cloth pathogen enrichment layer can enrich pathogens through continuous expiration of a sampled person, the detection sensitivity can be greatly improved, and the device is particularly suitable for lower respiratory tract infection pathogen sampling, such as a novel coronavirus pneumonia patient. The mask is worn by a sampled person, so that the infection risk of medical staff is greatly reduced. The method is simple in process, low in manufacturing cost, convenient to use, excellent in effect and good in popularization and application value.

Description

technical field [0001] The invention belongs to the technical field of infectious disease detection, and in particular relates to a medical mask specially used for enrichment and sampling of respiratory transmission pathogens. Background technique [0002] Pathogen detection is the gold standard for the diagnosis of infectious diseases. In the past diagnosis of respiratory infectious diseases, the oropharyngeal or nasopharyngeal swab collection method of the upper respiratory tract was often used to obtain samples from suspected cases. However, for those patients with lower bronchi or lungs at the lesion site, the number of pathogens in the nasopharynx of the upper respiratory tract is usually relatively small, resulting in very few pathogenic materials that can be scraped by swabs, and eventually detection Missed problems with false negative results. This problem was very common in the detection of suspected cases of avian influenza in the past, but it is more prominent an...

AI Technical Summary

Problems solved by technology

However, for those patients with lower bronchi or lungs at the lesion site, the number of pathogens in the nasopharynx of the upper respiratory tract is usually relatively small, resulting in very few pathogenic materials that can be scraped by swabs, and eventually detection Missed diagnosis problem with false negative results

This problem was very common in the detection of suspected cases of avian influenza in the past, but it is more prominent and serious in the detection of recent cases of new coronavirus pneumonia, because the infection and reproduction site of the new coronavirus is in the lungs and in the upper respiratory tract. However, it is very difficult and sometimes impossible to collect lower respiratory samples such as deep cough sputum, alveolar lavage fluid, bronchial lavage fluid and respiratory aspirates; this has resulted in many new Coronavirus latent infection, even patients or "recovered and discharged patients" failed to collect virus-containing disease materials, resulting in negative test results, resulting in the inability of early identification, isolation, observation and treatment of carriers, and inaccurate diagnosis and treatment of sick patients. Carrying out curative effect observation and discharge identification in a timely manner not only causes delays in case reports and the spread of infectious diseases, but also brings great difficulties to the isolation and treatment of patients, which has become a major technical problem in effectively preventing the new coronavirus pneumonia

In addition, even if it is not easy to collect a swab sample of the upper respiratory tract, putting the throat swab on the posterior pharyngeal wall and smearing it vigorously will cause serious discomfort to the patient; if the nasopharyngeal swab with a high positive rate is collected , it is required to be completed by well-trained medical staff

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