DIGITAL STETHOSCOPE Russian patent published in 2021 - IPC A61B7/04 G16H50/20 

FIELD: telemedicine.

SUBSTANCE: invention relates to devices for auscultation and can be used for telemedicine consultations and telemedicine monitoring in real time. The digital stethoscope (1) contains a device for detecting analog acoustic signals from the patient and a data processing system implemented via a secure encrypted web protocol and accessible via the user interface of a progressive web application on a portable computing device of the patient and/or doctor with headphones connected (14). The acoustic signal detection device contains series-connected components: an audio microphone, an analog signal pre-amplifier, an ADC, a microcontroller, and a battery. The microcontroller combines signals from the ADC and the device status signals into a single digital packet and transmits it wirelessly (31) to the data processing system. Software processing of the package is carried out using the doctor’s and/or patient’s device. At the same time, they receive and store information about the patient. A digital packet is processed and the data are then converted into an audio signal and into device status data for detecting analog acoustic signals. Device status data are stored and the audio signal is recorded to the data store (37). The audio signal is displayed as an audiogram in the doctor's web browser window (36). The audio signal is processed based on user settings by means of software noise reduction algorithms and software digital filter overlay (33, 34). The processed audio signal is output via the audio channel of the patient's and/or the doctor’s device to the headphones (35). The data about the applied digital filters and data about the analysis performed by the doctor and/or the neural network are stored.

EFFECT: quality and speed of signal processing with reduced power consumption and with the possibility of safe auscultation of patients with highly infectious diseases, such as COVID-19 are improved. It is possible to use the stethoscope with several wireless headsets simultaneously on several user devices, taking into account the individual psychoacoustic characteristics of users and different psychoacoustic perception of sounds by different specialists.

15 cl, 7 dwg, 2 tbl, 2 ex