CN111772668A - Low-noise electronic stethoscope and system - Google Patents

Abstract

The invention relates to a low-noise electronic stethoscope and a system, and mainly relates to the field of medical instruments. The low noise electronic stethoscope of this application includes: auscultation probe casing, the auscultation handle, the acoustic pressure sensor, vibrating diaphragm and signal transmitting device, when using this low noise electronic stethoscope to pick up respiratory sound, the vibrating diaphragm of this auscultation probe casing is close to patient's health, this vibrating diaphragm shakes according to respiratory sound, this acoustic pressure sensor takes place vibrations at this vibrating diaphragm, this acoustic pressure sensor turns into the signal of telecommunication with respiratory sound according to vibrations, export through signal transmitting device, this low noise electronic stethoscope can turn into the signal of telecommunication with respiratory sound, avoided when the auscultation, direct or indirect contact infectious disease patient, medical personnel's infection has been avoided.

Description

Low-noise electronic stethoscope and system

Technical Field

The invention relates to the field of medical instruments, in particular to a low-noise electronic stethoscope and a system.

Background

Respiratory tone signals are important physiological signals of the human body, which contain a great deal of information about the pathological condition of the lungs, reflecting the physiological and pathological information of the lungs and airway structures. In clinical diagnosis, a stethoscope is generally used to acquire respiratory sounds, the respiratory sounds are amplified by the stethoscope, and medical staff can diagnose pathological changes of the lung according to characteristics and changes of the sounds (such as frequency, intensity, interval time, noise and the like).

In the prior art, a traditional stethoscope is generally used by medical staff in a clinical diagnosis process, and the traditional stethoscope mainly comprises a chest piece (sound pickup function), a rubber tube (conduction function) and earplugs (listening function).

However, for patients with infectious diseases, the medical staff cannot auscultate while wearing the protective clothing, and the medical staff is easily infected.

Disclosure of Invention

The invention aims to provide a low-noise and low-noise electronic stethoscope and a system aiming at the defects in the prior art, so as to solve the problems that the auscultation cannot be performed on patients with infectious diseases while the medical staff are wearing protective clothing, and the infection of the medical staff is easily caused in the prior art.

In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:

in a first aspect, the present application provides a low noise electronic stethoscope, comprising: auscultation probe casing, the auscultation handle, the acoustic pressure sensor, the vibrating diaphragm and the processing module of making an uproar that falls, signal emission device, the auscultation probe casing is the cavity, acoustic pressure sensor sets up inside the cavity of auscultation probe casing, the vibrating diaphragm covers the cavity surface that sets up at the auscultation probe casing, and the vibrating diaphragm is connected with the acoustic pressure sensor, the auscultation handle can be dismantled with the connecting portion of auscultation probe and be connected, signal emission device sets up inside the auscultation handle, and signal emission device is connected with the acoustic pressure sensor electricity, wherein, the acoustic pressure sensor is used for turning.

Optionally, the auscultation handle comprises: the long section of the auscultation handle, the short section of the auscultation handle and the rear cover of the auscultation handle are arranged on the handle; the lid can dismantle the connection in proper order behind long section of auscultation handle, the short section of auscultation handle and the auscultation handle, and the long section of auscultation handle can dismantle with the connecting portion of auscultation probe casing and be connected, and covers behind long section of auscultation handle, the short section of auscultation handle and the auscultation handle and all be provided with the chip groove.

Optionally, the low-noise electronic stethoscope further comprises an amplifying circuit, wherein a chip integrated with the amplifying circuit is arranged on a chip groove on the long section of the auscultation handle, and two ends of the amplifying circuit are respectively electrically connected with the sound pressure sensor and the signal transmitting device.

Optionally, the low-noise electronic stethoscope further comprises a filter circuit, wherein a chip integrated with the filter circuit is arranged on a chip groove on the short section of the auscultation handle, and two ends of the filter circuit are respectively electrically connected with the amplifying circuit and the signal transmitting device.

Optionally, the low-noise electronic stethoscope further comprises an analog-to-digital signal conversion circuit, a chip integrated with the analog-to-digital signal conversion circuit is arranged on a chip groove on the back cover of the auscultation handle, and two ends of the analog-to-digital signal conversion circuit are electrically connected with the filter circuit and the signal transmitting device respectively.

Optionally, the detachable connection between the long section of the auscultation handle, the short section of the auscultation handle and the rear cover of the auscultation handle is clamping connection or screw connection.

Optionally, the auscultation probe shell comprises two cavities, and the two cavities are respectively provided with a sound pressure sensor and a vibration membrane.

Optionally, the two cavities of the auscultation probe shell are arranged in an opposite manner.

Optionally, the sound pressure sensor is a high-sensitivity sound pressure sensor.

In a second aspect, the present application provides a low noise electronic auscultation system, comprising: the receiving end, the processor and the low-noise electronic stethoscope of any one of the first aspect, wherein the signal emitting device, the receiving end and the processor of the low-noise electronic stethoscope are electrically connected, the receiving end is used for receiving signals, and the processor is used for processing the signals.

The invention has the beneficial effects that:

the auscultation probe shell is set to be a cavity, the sound pressure sensor is arranged in the cavity of the auscultation probe shell, the vibration film covers the surface of the cavity of the auscultation probe shell and is connected with the sound pressure sensor, the auscultation handle is detachably connected with the connecting part of the auscultation probe, the signal transmitting device is arranged in the auscultation handle and is electrically connected with the sound pressure sensor, wherein the sound pressure sensor is used for converting pressure information into an electric signal, when the low-noise electronic stethoscope is used for picking up breath sounds, the vibration film of the auscultation probe shell is close to the body of a patient, the vibration film vibrates according to the breath sounds, when the vibration film vibrates, the sound pressure sensor converts the breath sounds into the electric signal according to the vibration, the output is carried out through the signal transmitting device, and the low-noise electronic stethoscope can convert the breath sounds into the electric signal, avoided in the auscultation, direct or indirect contact infectious disease patient, avoided medical personnel's infection to, this application directly turns into the signal of telecommunication with the vibration, has reduced the influence that traditional stethoscope received the noise in the auscultation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a low-noise electronic stethoscope according to an embodiment of the present invention;

fig. 2 is an exploded view of a low-noise electronic stethoscope according to an embodiment of the present invention.

Icon: 1-auscultation probe shell; 11-a sound pressure sensor; 12-a diaphragm; 13-a connecting part; 2-auscultation handle; 21-a signal emitting device; 22-auscultation handle long section; 23-short section of auscultation handle; and 24-auscultation handle back cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiment is a metal plate embodiment of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In order to make the implementation of the present invention clearer, the following detailed description is made with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a low-noise electronic stethoscope according to an embodiment of the present invention, and as shown in fig. 1, the embodiment of the present application provides a low-noise electronic stethoscope, including: auscultation probe casing 1, auscultation handle 2, acoustic pressure sensor 11, vibrating diaphragm 12 and signal transmitting device 21, auscultation probe casing 1 is the cavity, acoustic pressure sensor 11 sets up inside the cavity of auscultation probe casing 1, vibrating diaphragm 12 covers the cavity surface that sets up at auscultation probe casing 1, and vibrating diaphragm 12 is connected with acoustic pressure sensor 11, auscultation handle 2 can be dismantled with the connecting portion 13 of auscultation probe and be connected, signal transmitting device 21 sets up inside auscultation handle 2, and signal transmitting device 21 is connected with acoustic pressure sensor 11 electricity, wherein, acoustic pressure sensor 11 is used for turning into the signal of telecommunication with pressure information.

The shape of the auscultation probe shell 1 can be hemispherical, can be ellipsoidal, and is not specifically limited herein, for convenience of description, the shape of the auscultation probe shell 1 is hemispherical for illustration herein, correspondingly, the cavity of the auscultation probe shell 1 is also a hemispherical cavity, the connecting portion 13 of the auscultation probe shell 1 is used for being connected with the auscultation handle 2, and the connecting manner is detachable for connection, which can be clamped or screwed, and is not specifically limited herein, when the connecting portion 13 of the auscultation probe shell 1 is used for being screwed with the auscultation handle 2, the connecting portion 13 of the auscultation probe shell 1 is a protrusion provided with a thread, when the connecting portion 13 of the auscultation probe shell 1 is used for being clamped or connected with the handle 2, the connecting portion 13 of the auscultation probe shell 1 is a protrusion or a depression, and is matched with the auscultation handle 2, the sound pressure sensor 11 is disposed inside the cavity of the auscultation probe housing 1, the shape of the cavity inside the auscultation probe housing 1 is generally the same as that of the sound pressure sensor 11, the sound pressure sensor 11 is disposed inside the cavity inside the auscultation probe housing 1, the surface area of the vibration membrane 12 is generally the same as that of the cavity of the auscultation probe housing 1, the vibration membrane 12 is disposed at the cross section of the cavity of the auscultation probe housing 1 in a covering manner, the vibration membrane 12 is used for collecting the breath sound of a patient when the low-noise electronic stethoscope is used, the sound pressure sensor 11 is connected to the vibration membrane 12 for converting the breath sound collected by the vibration membrane 12 into an electrical signal, generally, the sound pressure sensor 11 can also be a pressure sensor, and generates a corresponding current according to the magnitude of vibration, the signal emitting device 21 is disposed inside the auscultation handle 2, and is connected with the sound pressure sensor 11 electricity, a signal used for producing the sound pressure sensor 11 electricity is sent, generally, this signal emission device 21 can be limited signal transmission, also can be wireless signal transmission, when using this low noise electronic stethoscope to pick up the breath sound, the vibrations membrane 12 of this auscultation probe casing 1 is close to patient's health, this vibrations membrane 12 shakes according to the breath sound, this sound pressure sensor 11 is when this vibrations membrane 12 shakes, this sound pressure sensor 11 turns into the signal of telecommunication with the breath sound according to vibrations, export through signal emission device 21, this low noise electronic stethoscope can turn into the signal of telecommunication with the breath sound, avoided in the auscultation, direct or indirect contact infectious disease patient, avoided medical personnel's infection.

In addition, the low-noise electronic stethoscope further adopts sound pressure array sensing to realize noise reduction, the sound pressure sensor 11 includes a main sound pressure sensor and an auxiliary sound pressure sensor, wherein the main sound pressure sensor is used for collecting useful signals containing noise, the auxiliary sound pressure sensor is used for collecting environmental noise signals, a computer or a single chip microcomputer is used for performing differential array processing on the useful signals and the environmental noise signals, and picking and pressing noise signals in the useful signals to achieve a noise reduction function.

Fig. 2 is an exploded view of a low-noise electronic stethoscope according to an embodiment of the present invention, as shown in fig. 2, optionally, the stethoscope handle 2 includes: a long auscultation handle section 22, a short auscultation handle section 23 and a rear auscultation handle cover 24; lid 24 can dismantle the connection in proper order behind auscultation handle long section 22, the auscultation handle short section 23 and the auscultation handle, and auscultation handle long section 22 can dismantle with the connecting portion 13 of auscultation probe casing 1 and be connected, and all be provided with the chip groove behind auscultation handle long section 22, the auscultation handle short section 23 and the auscultation handle on the lid 24.

The auscultation handle 2 generally comprises three parts of an auscultation handle long section 22, an auscultation handle short section 23 and an auscultation handle rear cover 24, the auscultation handle long section 22, the auscultation handle short section 23 and the auscultation handle rear cover 24 are sequentially detachably connected, the connection mode among the auscultation handle long section 22, the auscultation handle short section 23 and the auscultation handle rear cover 24 can be clamping connection or screw connection, for convenience of explanation, the connection mode among the auscultation handle long section 22, the auscultation handle short section 23 and the auscultation handle rear cover 24 is explained as clamping connection, one end of the auscultation handle long section 22 and one end of the auscultation handle short section 23 are respectively provided with a connection column and a chip groove, the other end of the auscultation handle long section 22 and the auscultation handle short section 23 are respectively provided with a lead hole, one end of the auscultation handle rear cover 24 is provided with a connection column clamped with the auscultation handle short, lid 24 departments are provided with signal emission device 21 behind this auscultation handle, it needs to explain, this auscultation handle long section 22 can be dismantled with the connecting portion 13 of auscultation probe casing 1 and be connected, this auscultation handle long section 22 one end sets up the spliced pole cooperation of dovetail and this auscultation handle short section 23, then during the spliced pole of this auscultation handle long section 22 other end and the connecting portion 13 joint of auscultation probe, the connecting portion 13 of this auscultation probe be for can with this spliced pole complex dovetail, it is corresponding, when the connecting portion 13 of this auscultation probe is the spliced pole, the dovetail of this auscultation handle long section 22 is connected with the connecting portion 13 of this auscultation probe, the connecting portion 13 of the other end is connected with the dovetail of this auscultation.

Optionally, the low-noise electronic stethoscope further includes an amplifying circuit, a chip integrated with the amplifying circuit is disposed on a chip slot on the long section 22 of the auscultation handle, and two ends of the amplifying circuit are electrically connected to the sound pressure sensor 11 and the signal emitting device 21, respectively.

The chip integrated with the amplifying circuit is arranged on the chip slot on the long section 22 of the auscultation handle, and is used for amplifying the electric signal generated by the sound pressure sensor 11 and sending the amplified electric signal to the signal transmitting device 21, and the signal transmitting device 21 outputs the amplified electric signal.

Optionally, the low-noise electronic stethoscope further includes a filter circuit, a chip integrated with the filter circuit is disposed on a chip slot on the short section 23 of the auscultation handle, and two ends of the filter circuit are electrically connected to the amplifying circuit and the signal emitting device 21, respectively.

This integrated chip of filter circuit sets up on the chip groove on auscultation handle short segment 23, be used for filtering the signal of telecommunication that this amplifier circuit enlargies, filter the signal that is not in predetermineeing frequency range, and send the signal of telecommunication after filtering to this signal emission device 21, this signal emission device 21 will enlarge, the signal of telecommunication after filtering exports, it needs to explain, predetermine the frequency range and set up according to actual need, do not specifically prescribe here, and, this application directly turns into the signal of telecommunication with the vibration, further filtering the murmurmur through method circuit and filter circuit, the influence that traditional stethoscope received the noise when the auscultation has been reduced, make the low noise electronic stethoscope in this application can more accurately differentiate heart sound signal characteristic, the signal-to-noise ratio of integrated structure, it is more targeted than the filtering.

Optionally, the low-noise electronic stethoscope further includes an analog-to-digital signal conversion circuit, a chip integrated with the analog-to-digital signal conversion circuit is disposed on a chip slot of the back cover 24 of the auscultation handle, and two ends of the analog-to-digital signal conversion circuit are electrically connected to the filter circuit and the signal emitting device 21, respectively.

The integrated chip of the analog-to-digital signal conversion circuit is arranged on the chip groove on the back cover 24 of the auscultation handle, the analog-to-digital signal conversion circuit is used for converting the electric signal into a digital signal and sending the converted digital signal to the signal transmitting device 21, and the signal transmitting device 21 outputs the amplified, filtered and converted digital signal.

Optionally, the auscultation handle long section 22, the auscultation handle short section 23 and the auscultation handle rear cover 24 are detachably connected in a clamping manner or in a threaded manner.

Optionally, the auscultation probe shell 1 includes two cavities, and the two cavities are respectively provided with the sound pressure sensor 11 and the vibrating membrane 12.

The auscultation probe shell 1 comprises two cavities, a sound pressure sensor 11 and a vibration film 12 are respectively arranged in the two cavities, and the other end of the sound pressure sensor 11 is connected with an amplifying circuit, a filter circuit, an analog-to-digital signal conversion circuit and a signal transmitting device 21.

Optionally, the two cavities of the auscultation probe shell 1 are arranged oppositely.

Alternatively, the sound pressure sensor 11 is a high-sensitivity sound pressure sensor.

Specifically, the sound pressure sensor 11 may be any one of MEMS vector sensors CM-01B, HKY-06F, PFO-T6027P-C1033-BY with high sensitivity.

In the application, the auscultation probe shell 1 is set as a cavity, the sound pressure sensor 11 is arranged inside the cavity of the auscultation probe shell 1, the vibration film 12 is covered on the surface of the cavity of the auscultation probe shell 1, the vibration film 12 is connected with the sound pressure sensor 11, the auscultation handle 2 is detachably connected with the connecting part 13 of the auscultation probe, the signal emitting device 21 is arranged inside the auscultation handle 2, and the signal emitting device 21 is electrically connected with the sound pressure sensor 11, wherein the sound pressure sensor 11 is used for converting pressure information into an electric signal, when the low-noise electronic stethoscope is used for picking up breath sounds, the vibration film 12 of the auscultation probe shell 1 is close to the body of a patient, the vibration film 12 vibrates according to the breath sounds, when the sound pressure sensor 11 vibrates the vibration film 12, the sound pressure sensor 11 converts the breath sounds into, carry out the output through signal emission device 21, this low noise electronic stethoscope can turn into the signal of telecommunication with the breathing sound, has avoided in the auscultation, and direct or indirect contact infectious disease patient has avoided medical personnel's infection.

The application provides a low noise electron auscultation system, low noise electron auscultation system includes: the receiving terminal, the processor and any one of the above mentioned low noise electronic stethoscopes, the signal emitting device 21, the receiving terminal and the processor of the low noise electronic stethoscopes are electrically connected, the receiving terminal is used for receiving signals, and the processor is used for processing signals.

The receiving end can be a handheld terminal or a computer, the receiving end can be connected with the signal transmitting device 21 of the low-noise electronic stethoscope by wire or wireless, the receiving end can be connected with the processor by wire or wireless, for convenience of description, the signal transmitting device 21, the receiving end and the processor of the low-noise electronic stethoscope are all connected by wireless for example, the processor is internally provided with software capable of processing digital signals to extract the characteristics of the received digital signals, wherein the characteristic information to be extracted comprises amplitude, frequency, harmonic delay, harmonic distortion, waveform change, maximum power density value and the like, the extracted characteristic information is correspondingly matched with the characteristic information in a preset disease database, and the initial diagnosis result of the low-noise electronic stethoscope system for the patient is obtained according to the comparison and matching result, the low-noise electronic auscultation system can acquire the breath sound of the patient in real time by virtue of low-noise electronic auscultation, convert the breath sound into an electric signal, amplify and filter the electric signal, convert the processed electric signal into a digital signal, send the digital signal to a receiving end, receive the digital signal by the receiving end and send the digital signal to the processor, the processor performs characteristic extraction on the digital signal according to software for processing the digital signal, performs corresponding matching on the characteristic extraction result of the digital signal and the characteristic information in the preset disease database according to the characteristic extraction result of the digital signal, and performs corresponding matching according to the comparison matching result, the initial diagnosis result of the low-noise electronic auscultation system for the patient is obtained, and the low-noise electronic auscultation system has the advantages of real-time acquisition and real-time diagnosis, so that the diagnosis time is saved, and the health condition of the patient can be monitored in real time.

In addition, in practical application, the processor, the receiving end and the display can be integrated on a handheld device, the handheld device is internally provided with image processing, feature acquisition and feature comparison software, when a patient is diagnosed, the low-noise electronic stethoscope is firstly connected with a power supply, a doctor holds a handle of the low-noise electronic stethoscope, wireless equipment of the low-noise electronic stethoscope is matched with the wireless equipment of the handheld device, then one end of a vibrating membrane of the low-noise electronic stethoscope is attached to a part of the patient needing auscultation, waveforms of the collected auscultation sound signals of the patient can be displayed on a display screen of the handheld device in real time, the image processing software of the handheld device can carry out feature acquisition and feature comparison on the waveforms of the auscultation sound signals according to preset rules, the extracted features are automatically stored in a database and compared with typical disease types and feature information in the database, and matching, sending the matching result to the handheld device through a network, enabling a doctor to select voice broadcasting or self-reading a diagnosis report, and by integrating other examination results, clicking a feedback interface in the handheld device APP by the doctor to transmit information about whether the diagnosis report is accurate or not to the server.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A low noise electronic stethoscope, comprising: auscultation probe casing, auscultation handle, acoustic pressure sensor, vibrations membrane and signal transmitting device, the auscultation probe casing is the cavity, acoustic pressure sensor sets up inside the cavity of auscultation probe casing, vibrations membrane covers the setting and is in the cavity surface of auscultation probe casing, just vibrations membrane with acoustic pressure sensor connects, the auscultation handle with the connection can be dismantled to the connecting portion of auscultation probe, signal transmitting device sets up inside the auscultation handle, just signal transmitting device with the acoustic pressure sensor electricity is connected, wherein, acoustic pressure sensor is used for turning into the signal of telecommunication with pressure information.

2. The low noise electronic stethoscope of claim 1, wherein said auscultation handle comprises: the long section of the auscultation handle, the short section of the auscultation handle and the rear cover of the auscultation handle are arranged on the handle; the long section of auscultation handle the short section of auscultation handle with the lid can dismantle the connection in proper order behind the auscultation handle, the long section of auscultation handle with the connection can be dismantled to the connecting portion of auscultation probe casing, just the long section of auscultation handle the short section of auscultation handle with cover all to be provided with the chip groove behind the auscultation handle.

3. The low-noise electronic stethoscope according to claim 2, further comprising an amplifying circuit, wherein a chip integrated with said amplifying circuit is disposed in a chip slot on the long section of said stethoscope handle, and two ends of said amplifying circuit are electrically connected to said sound pressure sensor and said signal emitting device, respectively.

4. The low-noise electronic stethoscope according to claim 3, further comprising a filter circuit, wherein said filter circuit integrated chip is disposed on the chip slot of the short section of said stethoscope handle, and both ends of said filter circuit are electrically connected to said amplifying circuit and said signal emitting device, respectively.

5. The low-noise electronic stethoscope according to claim 4, further comprising an analog-to-digital signal conversion circuit, wherein a chip integrated with said analog-to-digital signal conversion circuit is disposed in a chip slot of said back cover of said auscultation handle, and two ends of said analog-to-digital signal conversion circuit are electrically connected to said filter circuit and said signal emitting device, respectively.

6. The low noise electronic stethoscope of claim 2, wherein said long section of said auscultation handle, said short section of said auscultation handle and said rear auscultation handle cover are detachably connected by snap-fit or screw-fit.

7. The low noise electronic stethoscope according to any one of claims 1 to 6, wherein said auscultation probe housing comprises two cavities, each of said two cavities being provided with said acoustic pressure sensor and said diaphragm.

8. The low noise electronic stethoscope of claim 7, wherein said two cavities of said auscultation probe housing are disposed opposite each other.

9. The low noise electronic stethoscope according to claim 8, wherein said sound pressure sensor is a high sensitivity sound pressure sensor.

10. A low noise electronic auscultation system, characterized in that it comprises: a receiving end, a processor and the low noise electronic stethoscope of any one of claims 1-9, wherein the signal transmitting device, the receiving end and the processor of the low noise electronic stethoscope are electrically connected, the receiving end is used for receiving signals, and the processor is used for processing signals.

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