CN218458122U

CN218458122U - Intelligent electronic stethoscope based on PVDF piezoelectric sensor

Info

Publication number: CN218458122U
Application number: CN202221828645.0U
Authority: CN
Inventors: 吴先洪; 罗钦雨; 卓维华
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-16
Filing date: 2022-07-16
Publication date: 2023-02-10
Anticipated expiration: 2032-07-16

Abstract

The utility model discloses an intelligent electronic stethoscope based on PVDF piezoelectric sensor, which comprises a metal shell, wherein a battery and a piezoelectric sensor are arranged in the metal shell; an opening at the upper end of the metal shell is provided with an electronic element cavity, a control circuit is arranged in the electronic element cavity, and the electronic element cavity is provided with a top cover; the lower end opening of the metal shell is provided with threads and is connected with a metal rotary cover, the metal rotary cover is provided with a tympanic membrane, and the piezoelectric sensor is attached to the inner side surface of the tympanic membrane. Compared with the prior art, the utility model the advantage be: compare with microphone pickup part, the utility model discloses have stronger anti external disturbance nature, it is wideer to absorb the frequency range, and the sound that the pickup part acquireed simultaneously can not be through physical media such as rubber tube, but with bluetooth wireless transmission technique, transmits sound for listening part and receives, with sound recording and save storage device in, supply the user to draw.

Description

Intelligent electronic stethoscope based on PVDF piezoelectric sensor

Technical Field

The utility model relates to a stethoscope especially relates to an intelligence electron stethoscope based on PVDF piezoelectric sensor.

Background

The stethoscope is the most commonly used diagnostic tool for internal and external gynecologists, and the traditional stethoscope mainly comprises a sound pickup part (chest piece), a conduction part (rubber tube) and an auditory part (ear piece).

The conventional stethoscope must contact the patient's body with the sound pick-up section, transmit the sound to the ears of the doctor by conduction through the sound pick-up section, and listen to the sound (heartbeat, respiration, etc.) emitted from the patient's body in real time. Under the condition of facing diseases with strong infectivity (such as infectious diseases like Xinguan, SARS and the like), doctors cannot wear the stethoscope after wearing the protective clothing and cannot effectively listen to the sound emitted by the bodies of the patients; some patients are uncomfortable in paroxysmal bodies, abnormal sounds are not always emitted by bodies, doctors cannot know the abnormal sounds in many cases, and even if the patients wear wearable monitoring equipment for a long time, effective information cannot be acquired and provided for the doctors to diagnose.

Therefore, the development of an intelligent electronic stethoscope based on a PVDF piezoelectric sensor is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides an it is not enough to solve above-mentioned, provides an intelligent electron stethoscope based on PVDF piezoelectric sensor.

The above object of the present invention is achieved by the following technical solutions: an intelligent electronic stethoscope based on a PVDF piezoelectric sensor comprises a metal shell, wherein a battery and the piezoelectric sensor are arranged in the metal shell;

an opening at the upper end of the metal shell is provided with an electronic element cavity, a control circuit is arranged in the electronic element cavity, and the electronic element cavity is provided with a top cover;

the lower end opening of the metal shell is provided with threads and is connected with a metal rotary cover, the metal rotary cover is provided with a tympanic membrane, and the piezoelectric sensor is attached to the inner side surface of the tympanic membrane.

Furthermore, a cold-proof ring is arranged on the circumference of the outer side of the drum membrane on the end face of the metal spiral cover.

Furthermore, the control circuit comprises a main PCB and an auxiliary PCB, the main PCB is provided with a Bluetooth data transmission module and a USB charging port and is in wireless connection with the listening terminal equipment through the Bluetooth data transmission module, and the main PCB is respectively connected with the auxiliary PCB, the battery and the piezoelectric sensor.

Further, the listening terminal device is provided with a memory for storing sound data.

Furthermore, a noise reduction circuit is arranged on the main PCB.

Furthermore, an LED lamp and a power-on/off button are arranged on the auxiliary PCB, a light guide body is arranged on the upper side of the LED lamp and the power-on/off button, a keycap is installed on the light guide body, a light guide column is arranged on the light guide body, a light guide opening is formed in the keycap, and the light guide column is inserted into the light guide opening.

Further, the electronic component cavity is made of a plastic material.

Compared with the prior art, the utility model the advantage be: compare with microphone pickup part, the utility model discloses have stronger anti external disturbance nature, it is wideer to absorb the frequency range, and the sound that the pickup part acquireed simultaneously can not be through physical media such as rubber tube, but with bluetooth wireless transmission technique, transmits sound for listening part and receives, with sound recording and save storage device in, supply the user to draw.

Drawings

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a schematic perspective view of the present invention.

Fig. 3 is a schematic diagram of the internal structure of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, an intelligent electronic stethoscope based on PVDF piezoelectric sensor comprises a metal shell 1, wherein a battery 2 and a piezoelectric sensor 3 are installed in the metal shell 1; the utility model discloses a portable music player, including metal casing 1, electronic component cavity 4, USB charging port 7, main PCB board 5, LED lamp 8 and on-off button 9 upside are equipped with a light guide body 10, and a light guide body 10 installation key cap 15 is equipped with a leaded light post 16 on the light guide body 10, is equipped with light guide port 17 on the key cap 15, and leaded light post 16 inserts light guide port 17. When the electronic component is started, the keycap is pressed down to drive the light guide body to press the startup and shutdown key, meanwhile, the LED lamp is lighted up and is guided to the keycap 15 through the light guide column 16 of the light guide body 10, and the electronic component cavity 4 is provided with the top cover 11; the lower end opening of the metal shell 1 is provided with threads and is connected with a metal rotary cover 12, the metal rotary cover 12 is provided with a tympanic membrane 13, the piezoelectric sensor 3 is attached to the inner side surface of the tympanic membrane 13, and the circumference of the outer side of the tympanic membrane 13 on the end surface of the metal rotary cover 12 is provided with a cold-proof ring 14.

The utility model uses the piezoelectric transducer 3 (PVDF) to replace the microphone in the pickup part of the electronic stethoscope to obtain the sound emitted by the organs such as the heart, the lung and the like of the body; the noise reduction circuit is used for processing, noise (such as sound and speaking sound generated by automobile knocking the ground) generated by the external environment is effectively filtered, and sound emitted by organs such as heart, lung and the like is acquired in a high fidelity mode. The filtered sound is transmitted to corresponding listening terminal equipment (such as earphones, sound boxes and the like) in real time through a Bluetooth data transmission module, and the sound is transmitted to a doctor in real time to be used as a diagnosis basis; meanwhile, the sound can be recorded in a memory of the listening device, so that the user can record the sound emitted by organs such as heart, lung and the like when the user feels uncomfortable, and the recorded sound is sent to a doctor remotely or provided to the doctor for serving as a diagnosis basis when the doctor visits a doctor.

The utility model has stronger external interference resistance and wider ingestion frequency range, compared with the heart sound acquired by the microphone, the signal acquired by the piezoelectric film sensor has more ingestion frequencies when denoising, characteristic extraction, classification identification and other treatments are carried out on the heart sound data, and the auscultation of a patient by a doctor in a state of wearing the protective clothing is satisfied; the stethoscope can automatically auscultate and record sound when a family user feels uncomfortable, and a doctor can remotely diagnose or listen to the sounds of organs such as heart, lung and the like during disease attack.

During operation, sound firstly passes through the eardrum, then is transmitted to the piezoelectric transducer by the eardrum, and then is transmitted to the noise reduction circuit of the main PCB by the piezoelectric transducer, and then is transmitted to the corresponding listening terminal equipment by the Bluetooth data transmission module after noise reduction.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides an intelligent electronic stethoscope based on PVDF piezoelectric sensor which characterized in that: the piezoelectric sensor comprises a metal shell, wherein a battery and a piezoelectric sensor are arranged in the metal shell;

an opening at the upper end of the metal shell is provided with an electronic element cavity, a control circuit is installed in the electronic element cavity, and the electronic element cavity is provided with a top cover;

2. An intelligent electronic stethoscope based on PVDF piezoelectric transducer as defined in claim 1, wherein: and a cold-proof ring is arranged on the circumference of the outer side of the drum membrane on the end surface of the metal spiral cover.

3. An intelligent electronic stethoscope based on PVDF piezoelectric transducer as defined in claim 1, wherein: the control circuit comprises a main PCB and an auxiliary PCB, wherein the main PCB is provided with a Bluetooth data transmission module and a USB charging port and is in wireless connection with the listening terminal equipment through the Bluetooth data transmission module, and the main PCB is respectively connected with the auxiliary PCB, the battery and the piezoelectric sensor.

4. An intelligent electronic stethoscope based on PVDF piezoelectric sensors as claimed in claim 3, wherein: the listening terminal device is provided with a memory for storing sound data.

5. An intelligent electronic stethoscope based on PVDF piezoelectric transducer as defined in claim 3, wherein: and a noise reduction circuit is arranged on the main PCB.

6. An intelligent electronic stethoscope based on PVDF piezoelectric transducer as defined in claim 3, wherein: the LED lamp and the power-on and power-off button are arranged on the auxiliary PCB, a light guide body is arranged on the upper sides of the LED lamp and the power-on and power-off button, a key cap is installed on the light guide body, a light guide column is arranged on the light guide body, a light guide opening is formed in the key cap, and the light guide column is inserted into the light guide opening.

7. An intelligent electronic stethoscope based on PVDF piezoelectric transducer as defined in claim 1, wherein: the electronic component cavity is made of plastic materials.