RU2316256C2 - Individual electron stethoscope - Google Patents

Abstract

FIELD: medical electronic equipment.

SUBSTANCE: stethoscope can be used for individual self-listening to sonic manifestation of human body's internal organs. Device has acoustic receiver, control board, microprocessor unit, reference phonograms unit and stereophonic phone set. Device is made portable and provides ability of self diagnosing and self-listening to sonic manifestations of functioning of human organism's internal organs.

EFFECT: simplified design; improved precision.

1 dwg

Description

The invention relates to medical electronics and is intended for individual use, self-diagnosis and self-listening of sound manifestations of the functioning of the internal organs of a person with a predominantly wearable embodiment.

Known electronic stethoscope [1], containing a microphone, amplifier, switch, telephone, computing unit and the elements of the formation of the control signal. The disadvantages of the device are structural and operational complexity.

Known electronic stethoscope [2], containing a microphone, amplifier, ADC, block information selection, DAC, telephone, elements of the formation of the control signal. The disadvantages of the device are structural and operational complexity.

Closest to the proposed one is an electronic phonendoscope-stethoscope [3], which contains an acoustic receiver, an amplifier with an adjustable transmission coefficient, a band-pass filter, a power amplifier, a telephone, an ADC, an analysis unit, a reference phonogram block, and auxiliary elements. The disadvantages of the device are structural and operational complexity.

The technical result of the invention is to simplify the design to a wearable embodiment and to enable individual use, self-diagnosis and self-listening of sound manifestations of the functioning of the internal organs of a person with sufficient accuracy of the device.

The technical result is achieved by the fact that in an individual electronic stethoscope containing a control panel and an acoustic receiver connected in series, telephones and a reference phonogram unit, a microprocessor unit is inserted, the digital input of the settings of which is connected to another output of the control panel configured to select settings, the input port is connected with the output of the acoustic receiver and the input of telephones made stereo, the other input of which is connected to the output port of the microprocessor unit, another qi whose background input is connected to the output of the reference phonogram block containing individual phonograms in digital form.

The structural diagram of an individual electronic stethoscope is shown in the drawing.

An individual electronic stethoscope contains an acoustic receiver 1, a control panel 2, a microprocessor unit 3, a reference phonogram unit 4 and telephones 5.

An individual electronic stethoscope operates as follows. In accordance with the instruction manual of the device, the user (mainly without special medical training) fixes the elements of the acoustic receiver 1 on the outer surface of his body, and through the control panel 2 sets the parameters of the operating mode of the acoustic receiver 1 and sets the corresponding phonogram in block 3 of the microprocessor from block 4 reference phonograms. At the same time, in real time in one of the phones 5, sound manifestations of the functioning of the corresponding internal organ are heard, and in the other phone the corresponding individual phonogram is normal. Sound synchronization is ensured by the connection of the microprocessor unit 3 with the output of the acoustic receiver 1. If the established acceptable deviation of the sound parameters from the norm is exceeded, an alarm signal is generated by the microprocessor unit 3, which arrives at the corresponding telephone.

The device can be made of standard modules and on the element base used in medical electronics. The constructive implementation of a number of blocks may coincide or include designs of the same functional purpose of the prototype and analogues. For example, the acoustic receiver 1 may coincide in design with the combination of blocks 1-6 of the prototype, block 4 of the reference phonograms coincides with block 15 of the prototype, control panel 2 includes a numeric keypad (for controlling block 3). The design of the remaining blocks are determined by their functional purpose and are typical, known or obvious from the prior art in the applicable time and frequency ranges. The microprocessor unit 3 software is typical, in particular, providing the reading of removable magnetic cards of the unit 4 reference phonograms.

Bibliographic list

1. A.S. No. 1595472. Electronic stethoscope / A.G. Mrochek et al. // BI No. 36 09/30/90.

2. A.S. No. 1752353. Electronic stethoscope / V.A. Zayka et al. // BI No. 29.08.08.92.

3. Patent No. 2173538 (RU). Electronic phonendoscope-stethoscope / V.E.Polyakov et al. // BI No. 26 09/20/01.

Claims (1)

An individual electronic stethoscope containing a control panel and an acoustic receiver connected in series, a telephone and a reference phonogram unit, characterized in that a microprocessor unit is inserted into it, the digital input of the settings of which is connected to another output of the control panel configured to select settings, the input port is connected to the output of the acoustic receiver and the input of the phone, made stereo, the other input of which is connected to the output port of the microprocessor unit, another digital input which connected to the output of the block of reference soundtracks, containing individual phonogram in digital form.