RU203478U1 - DEVICE FOR DIAGNOSTICS OF CORONAVIRUS COVID-19 - Google Patents

Abstract

The utility model relates to medical equipment and can be used in the initial examination of patients with suspected coronavirus infection COVID-19 by checking the functioning of the olfactory analyzer. A device for diagnosing coronavirus COVID-19, including a container with an odorous substance and a discharge tube, characterized in that contains a cabin with containers with odorous substances located in it, a source of compressed air, a ventilation device and a control system with a remote control and an information input-output device, a discharge tube connects the source of compressed air and containers with odorous substances and opens into the interior of the cabin, a source of compressed air can be autonomous or networked, the connection to the outlet tube of the desired capacity with an odorous substance occurs at the command of the control system, the conclusion about the presence or absence of a sign of COVID-19 coronavirus in the patient is formed by the control system based on the results of comparing the response patient with the correct option from the proposed sample.

Description

The utility model relates to medical technology and can be used in the initial examination of patients with suspected coronavirus infection COVID-19 by checking the functioning of the olfactory analyzer.

Currently, one of the main diagnostic methods in determining the possible presence of active coronavirus infection is testing for respiratory disease and the associated SARS-CoV-2 virus, carried out in the form of molecular recognition using polymerase chain reaction (PCR) (URL: / https: //ru.wikipedia.org/wiki/Testing_ for_coronavirus_infection_COVID-19; date accessed: 01/06/2020). The disadvantages of the known method include, in particular, the need for careful preparation of the patient: at least three hours before taking a smear, one cannot eat or drink anything, or gargle. If these rules are not followed, you can simply "wash away" the virus (URL: / https: //rg.ru/2020/12/01/v-voz-vyskazali-otnoshenie-k-pcr-diagnostike-dlia-obnaruzheniia-koronavirusa.html; date of access: 01/06/2020). Failure to prepare the patient most often leads to false negative results.

A known method for diagnosing COVID-19 disease using computed tomography. The disadvantages of the known method include the high cost of computed tomography installations, the need for specialists to conduct the study and interpret its results, as well as the non-specificity of the data in relation to coronavirus infection: any other viral pneumonia will look the same (URL: / https: //www.sechenov .ru / pressroom / news / glavnye-minusy-i-plyusy-kt-pri-koronaviruse /; date accessed: 01/06/2020).

It is known that from 75 to 80 percent of patients with coronavirus COVID-19 lose their sense of smell (or their sense of smell is significantly weakened) - they have anosmia (URL: / https: //riafan.ru/1329536-vrach-nazval-procent-bolnyh-covid -19-s-poterei-vkusa-i-obonyaniya; date accessed: 01/06/2020). Screening of patients for anosmia is considered by some specialists as an effective way to initially diagnose COVID-19 and, even more, as one of the main public health tools (URL: / https: //medz24.ru/domashnij-skrining-ezhednevnaja-proverka- obonjanija-v-borbe-s-covid-19 /; date accessed: 01/06/2020).

The closest in terms of the totality of essential features - the prototype of the claimed utility model - is a device that includes a vessel with an odorous substance and a discharge tube (US Pat. RU No. 2151569, publ. 06/27/2000). According to the known solution, an encephalograph is connected to the device to record the response of the patient's cerebral cortex to smell. The disadvantages of the known solution include excessive complexity due to the presence of an encephalograph, whereas for the diagnosis of coronavirus infection with COVID-19, the indicator is not the shape of the reaction curve of the cerebral cortex, but the fact of the presence or absence of anosmia. In addition, it is known that the sensitivity of patients to certain odors may depend on the type of their professional activity. For example, according to V.A. Katz, who studied the sense of smell in pilots, the familiar smell of gasoline was correctly recognized by 85% of all those surveyed; the smell of onion extract was recognized by only 60%, and the less familiar smell of valerian was recognized by only 26% of all surveyed pilots (URL: / https: //meduniver.com/Medical/profilaktika/1213.html; date of access: 01/06/2020).

The technical problem to be solved by the proposed utility model is to ensure rapid diagnosis of the coronavirus COVID-19.

The solution to the technical problem posed is achieved through the combined implementation of the following design solutions:

- the inclusion in the proposed device of a set of containers, in each of which is placed a certain odorous substance;

- automatic supply of the appropriate odoriferous substance;

- receiving the patient's response by the device - smell recognition - in the form of the patient's choice of the answer option from the proposed sample;

- automatic analysis of the correctness of the patient's answer and the subsequent conclusion on the presence or absence of the patient's suspicion of coronavirus infection.

One of the possible design options for a device for diagnosing coronavirus COVID-19 proposed as a present utility model is illustrated by a drawing and includes a cabin 1 in which containers 2 with odorous substances are located (can be made in the form of aerosols placed in a can of compressed air), source 3 compressed air, outlet pipe 4, ventilation device 5, control system 6. Tanks 2 with odorous substances can be connected to outlet pipe 4 in parallel through normally closed solenoid valves 41. Source 3 of compressed air is connected to outlet pipe 4 through normally closed solenoid valve 42.

In the versions of the proposed device, the source of compressed air 3 can be autonomous and networked. In the first case, it can be made in the form of a compressed air cylinder. In the second case, the source of compressed air 3 can be the end section of the pipeline connecting the cabin 1 with the compressor.

The outlet pipe 4 ends with an open section 43.

If necessary (for example, if you need to quickly get rid of odors for a new test), the ventilation device 5 is designed to quickly clean the space of the cabin 1 from odors.

The control system 6 (can be made in the form of a PC with a monitor) can include a control panel 61 with a START TEST button 611 and an information input-output device 612, as well as a system of switching cables 613 connecting the control panel 61 with solenoid valves 41, 42 and a power supply (not shown in Fig. 1).

When the door 11 is closed and the ventilation device 5 is turned off, there is no air exchange between the interior of the cabin 1 and the environment.

The device for diagnosing coronavirus COVID-19 proposed as a present utility model works as follows.

The patient to be examined (not shown in Fig. 1) enters the cabin 1 and closes the door behind him (or the door closes automatically - not shown in Fig. 1). On the remote control 61 the patient presses the button 611 "START TEST".

In embodiments, the I / O device 612 may be a keyboard or a touch screen.

The control system 6 automatically selects container 2 (or aerosol) with an odorous substance either according to a certain algorithm or randomly) and sends a signal to the desired solenoid valve 41, communicating container 2 with a discharge tube 4. At the same time, the signal is sent to an electrovalve 42, communicating with a discharge tube 4 compressed air source 3. The air, saturated with the smell of an odorous substance, through the open section 43 of the discharge tube 4 enters the inner space of the cabin 1. Alternatively, a version with an aerosol contained in a can of compressed air is used.

On the screen of the control panel 61, a set of variants of names of substances, which the patient should associate with the smell in the inner space of the cabin 1, is displayed. Among the options on the screen there is an option “NO SMELL”. Using the device 612 I / O information, the patient enters his chosen answer.

The 6 control system analyzes the patient's response. In the event that the answer is correct, the control system 6 concludes that the patient does not have a sign of coronavirus infection COVID-19. In the event that the answer is incorrect, control system 6 concludes that the patient has a sign of COVID-19 coronavirus infection. The corresponding information is displayed on the control panel 61.

In an embodiment of the proposed device, information about the presence or absence of a sign of coronavirus infection COVID-19 in a patient can be transmitted to a remote storage and data processing device (not shown in Fig. 1).

After the information on the presence or absence of a sign of coronavirus infection COVID-19 appears on the screen, the test is considered completed. The control system 6 can automatically turn off the solenoid valve 41 and turn on the ventilation device 5. During the time specified by the control program, the interior space of the cabin 1 can be purged. The patient leaves the cabin 1.

There may also be a version of the device, where instead of a container with an odorous substance and a source of compressed air, an aerosol can can be used (for example, https://aromaservis.ru/products/aromat-hleba-hlebnyj, such an aerosol can contains the smell of bread).

The technical result of using the device for diagnosing coronavirus COVID-19, proposed as a present utility model, is to significantly simplify the diagnostic process while increasing safety for medical personnel due to the complete automation of the process.

Claims (8)

1. A device for testing the functioning of the olfactory analyzer during the initial examination of patients with suspected coronavirus infection COVID-19, including a container with an odorous substance and a discharge tube, characterized in that it contains a cabin, with containers with odorous substances located in it, a source of compressed air , a ventilation device and a control unit with a remote control and an information input-output device, the outlet pipe connects the source of compressed air and containers with odorous substances and opens into the interior space of the cabin, connection to the outlet pipe of the desired container with an odorous substance occurs at the command of the control unit, the conclusion about the presence or absence of a sign of COVID-19 coronavirus in a patient is formed by the control unit based on the results of comparing the patient's response with the correct option from the proposed sample. 2. The device according to claim 1, characterized in that the compressed air source is made in the form of a compressed air cylinder. 3. The device according to claim 1, characterized in that the ventilation device is switched on and off automatically. 4. The device according to the preceding paragraphs, characterized in that the information input-output device is made in the form of a keyboard. 5. The device according to claim 1 and 2, characterized in that the information input-output device is made in the form of a touch screen. 6. The device according to the preceding paragraphs, characterized in that among the options offered by the control unit when the patient recognizes the smell in the cabin, there is the option "NO SMELL". 7. The device according to the preceding paragraphs, characterized in that the container with the odorous substance and the source of compressed air are made in the form of an aerosol can. 8. The device according to claim 1, characterized in that the source of compressed air can be autonomous or networked.

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