Stethoscope device for online use

Abstract

The utility model provides an online use's stethoscope device relates to stethoscope technical field. Including stethoscope body, USB adapter and terminal equipment, USB adapter is connected stethoscope body and terminal equipment respectively with electricity, be equipped with physiological sound signal acquisition circuit in stethoscope body, be equipped with USB audio decoding circuit and USB interface circuit in USB adapter. In the utility model, through setting up stethoscope body, USB adapter and terminal equipment, realized the physical connection of stethoscope body and terminal equipment, and provided power channel and data transmission channel, thereby solved the development trend of the remote diagnosis and treatment technology that traditional stethoscope cannot respond to current, and the problem of the limitation of current existing electronic stethoscope in power supply mode.

Description

Technical Field

[0001] This utility model relates to the field of stethoscope technology, specifically to a stethoscope device for online use. Background Technology

[0002] As a fundamental diagnostic tool widely used in the medical field, the stethoscope plays an indispensable role in the initial diagnosis and monitoring of diseases. In recent years, with the continuous improvement of medical standards, many studies on functional improvement and expansion have been carried out in the field of stethoscope technology, such as the stethoscope with rapid disinfection of the stethoscope head provided by patent CN220695278U. However, conventional functional improvement and expansion research mostly focuses on basic physical structure and cannot respond to the current development trend of remote diagnosis and treatment technology.

[0003] Against this backdrop, some novel electronic stethoscopes have been proposed in the existing technology. However, due to the immaturity of the technology, there are still some limitations in practical applications. For example, the power supply solutions for these electronic stethoscopes are mainly built-in batteries or external power supplies. Stethoscopes with built-in batteries require regular charging or battery replacement, which increases the device maintenance cost, and the limited battery capacity easily leads to insufficient battery life, making it difficult to meet the needs of long-term diagnosis and treatment. Stethoscopes with external power supplies require an additional independent power module, which also increases the size and weight of the entire device, thus limiting the portability and practicality of the stethoscope. In addition, in existing electronic stethoscopes, because the stethoscope pickup end and the voice input channel are deeply coupled in hardware, patients need to input voice through the physiological signal pickup end when conducting remote voice consultations. Due to the performance characteristics of the stethoscope pickup end, a large noise is generated when the stethoscope is placed against and removed from the body, resulting in distortion problems such as "speech blurring" and "loss of key syllables," which also increases the user's operational burden.

[0004] In summary, this utility model provides a stethoscope device for online use. Utility Model Content

[0005] The purpose of this invention is to provide an online stethoscope device to address the problems mentioned in the background art, such as the inability of traditional stethoscopes to respond to the current development trend of remote diagnosis and treatment technology, and the limitations of existing electronic stethoscopes in terms of power supply.

[0006] This utility model is achieved using the following technical solution:

[0007] An online stethoscope device includes a stethoscope body, a USB adapter, and a terminal device, wherein the USB adapter is electrically connected to the stethoscope body and the terminal device respectively; the stethoscope body is provided with a physiological sound signal acquisition circuit, and the USB adapter is provided with a USB audio decoding circuit and a USB interface circuit.

[0008] In this stethoscope device, a USB adapter is used to achieve a physical connection between the stethoscope body and the terminal device, and provides power and data transmission channels. Based on OTG power supply and USB audio protocols, the terminal device can supply power to the stethoscope body and convert the physiological sound signals (analog audio signals) collected by the stethoscope body into digital signals for transmission to the terminal device. The terminal device will automatically recognize the physiological sound signals as audio input. Users can record and save the physiological sound data through the terminal device and send it to the remote doctor, or initiate voice / video to synchronize the physiological sound data to the remote doctor in real time.

[0009] Furthermore, the stethoscope body includes a stethoscope head and a handle, one end of which is connected to the stethoscope head and the other end is connected to a USB adapter via a wire; the handle is equipped with a physiological sound signal acquisition circuit.

[0010] Furthermore, the USB adapter includes a housing, one end of which is connected to the handle via a wire, and the other end is connected to the terminal device via a USB adapter cable; the housing is equipped with a USB audio decoding circuit and a USB interface circuit, the USB audio decoding circuit being connected to the physiological sound signal acquisition circuit and the USB interface circuit respectively, and the USB interface circuit being connected to the USB interface of the terminal device.

[0011] Furthermore, the physiological sound signal acquisition circuit includes a signal acquisition unit, an amplification and noise reduction unit, and a power amplification unit connected in series.

[0012] Furthermore, a voltage stabilizing circuit is also provided inside the housing.

[0013] Furthermore, it also includes wired headphones, which are electrically connected to a USB adapter; the internal housing of the USB adapter is also provided with a self-switching control circuit, which includes a physiological sound signal interface, an upload signal self-switching control unit, an output signal self-switching control unit, and a headphone signal interface connected to each other. The physiological sound signal interface is connected to the output end of the physiological sound signal acquisition circuit, and the upload signal self-switching control unit is connected to the input end of the USB audio decoding circuit.

[0014] This stethoscope device, through the inclusion of wired headphones and a self-switching control circuit, enables real-time voice interaction between the user and a remote doctor. The user's voice input does not require the stethoscope's earpiece, and the device automatically switches between physiological sounds and voice input / output. Specifically: when uploading audio to the terminal device, if the user is not speaking (i.e., the microphone of the wired headphones has no signal), physiological sounds are uploaded; conversely, if the user is speaking (i.e., the microphone of the wired headphones has a signal), the user's voice is uploaded. When outputting audio to the user's wired headphones, if the doctor at the remote end is not speaking, physiological sounds are output; conversely, if the doctor at the remote end is speaking, the doctor's voice is output.

[0015] Furthermore, the upload signal self-switching control unit includes a connected delay control circuit and an analog switch chip, and the delay control circuit includes a connected operational amplifier and two MOSFETs.

[0016] Furthermore, the output signal self-switching control unit includes a delay control circuit and an analog switch chip connected together, and the delay control circuit includes two MOS transistors connected together.

[0017] The beneficial effects achieved by this utility model are:

[0018] This invention provides an online stethoscope device. By incorporating a stethoscope body, a USB adapter, and a terminal device, a data transmission channel is provided, allowing physiological sound signals collected by the stethoscope body to be transmitted to the terminal device, and subsequently to a remote doctor. Compared to traditional stethoscopes limited to on-site use, this invention enables online remote diagnosis and treatment. Furthermore, a power supply channel is provided, allowing the terminal device to power the stethoscope body. Compared to existing electronic stethoscopes that require a built-in battery or external power source, this invention features a lightweight, battery-free design that is "plug and play," effectively improving ease of use and reducing material and maintenance costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the stethoscope device described in this embodiment of the utility model;

[0020] Figure 2 This is a circuit diagram of the physiological sound signal acquisition circuit in the stethoscope device described in this embodiment of the present invention;

[0021] Figure 3 This is a circuit diagram of the self-switching control circuit in the stethoscope device described in this embodiment of the present invention;

[0022] Figure 4 This is a circuit diagram of the internal circuit of the USB adapter in the stethoscope device described in this embodiment of the present invention;

[0023] In the picture: 1. Earpiece; 2. Handset; 3. USB adapter; 4. Terminal device; 5. Earpiece; 6. Earpiece microphone. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Example 1

[0026] This embodiment provides an online stethoscope device. Please refer to [link / reference]. Figure 1 It includes a stethoscope body, wired headphones, a USB adapter 3, and a terminal device 4. The stethoscope body and the wired headphones are electrically connected to the terminal device 4 via the USB adapter 3. Specifically:

[0027] The stethoscope body includes a stethoscope head 1 and a handle 2. One end of the handle 2 is fixedly connected to the stethoscope head 1, and the other end of the handle 2 is detachably connected to a corresponding jack on a USB adapter 3 via a wire and a plug. The wired headphones include two earpieces 5, an earphone microphone 6, and an earphone cable. The end of the earphone cable is detachably connected to a corresponding jack on the USB adapter 3 via a plug. The USB adapter 3 includes a housing. Two jacks are provided on one end face of the housing for connecting the stethoscope body and the wired headphones respectively. An adapter cable extends from the other end face of the housing, and the end of the adapter cable is detachably connected to a terminal device 4 via a USB plug.

[0028] In this embodiment, the terminal device 4 specifically adopts a mobile phone that supports USB interface, USB audio protocol and OTG power supply function. In other embodiments, a computer may also be used depending on the actual situation.

[0029] The handle 2 of the stethoscope body contains a physiological sound signal acquisition circuit; please refer to... Figure 2 The physiological sound signal acquisition circuit includes a signal acquisition unit, an amplification and noise reduction unit, and a power amplification unit connected together. The signal acquisition unit includes a sound sensor MK and a coupling capacitor IC1. The amplification and noise reduction unit includes an operational amplifier IU1. The power amplification unit includes an amplifier chip U2. The output of the power amplification unit is connected to the signal output interface P1.

[0030] The USB adapter 3 has an internal self-switching control circuit and an adapter circuit. Please refer to... Figure 3The self-switching control circuit includes a physiological sound signal interface P3, an upload signal self-switching control unit, an output signal self-switching control unit, and an earphone signal interface P4. The physiological sound signal interface is connected to the output of the physiological sound signal acquisition circuit, and the upload signal self-switching control unit is connected to the input of the USB audio decoding circuit. The upload signal self-switching control unit includes a delay control circuit I and an analog switch chip IU4. The delay control circuit I includes an operational amplifier IIU5, a MOSFET IQ3, and a MOSFET IIQ4. The output signal self-switching control unit includes a delay control circuit II and an analog switch chip IIU3. The delay control circuit II includes a MOSFET IIIQ1 and a MOSFET IVQ2. Please refer to... Figure 4 The adapter circuit includes a USB audio decoding circuit, a USB interface circuit, and a voltage regulator circuit (used to provide stable voltage and reduce noise interference caused by voltage fluctuations); the USB audio decoding circuit includes an audio decoding chip U2, which is connected to the output of the self-switching control circuit and the input of the USB interface circuit respectively, and the output of the USB interface circuit is connected to the USB interface of the terminal device 4.

[0031] In the above structure, the stethoscope body is used to collect and upload the user's physiological sound signals, the wired headphones are used for the user to receive audio output and make voice calls, the USB adapter 3 is used to realize the online connection between the stethoscope body and the wired headphones and the terminal device 4, and the terminal device 4 is used to power the stethoscope body and realize remote medical treatment. Specifically:

[0032] In the stethoscope body, the stethoscope head 1 is used to collect the user's physiological sound signals. The physiological sound signal acquisition circuit inside the handle 2 is used to cooperate with the stethoscope head 1 to collect and amplify the collected physiological sound signals and perform high-frequency and low-frequency noise reduction processing. In the wired headphones, two earpieces 5 are used to transmit audio output to the user, and the headphone microphone 6 is used to collect the user's voice, so that the user does not need to speak into the stethoscope head 1 when conducting remote medical communication. In the USB adapter 3, the self-switching control circuit inside the shell is used to automatically switch between uploading physiological sounds or user voice to the terminal device 4 and automatically switch between outputting physiological sounds or remote doctor voice to the user. The adapter circuit is used to provide power and data transmission channels.

[0033] Therefore, when using this stethoscope device:

[0034] First, connect the stethoscope, wired headphones, USB adapter 3, and terminal device 4 accordingly. After successful connection, terminal device 4 will supply power to the stethoscope based on OTG power supply function. Then, the user can start the recording function on terminal device 4 or initiate communication with the remote doctor as needed.

[0035] Then, the user can operate the earpiece 1 to collect physiological sound signals. During this process, the physiological sound signal acquisition circuit works. The sound sensor MK in the signal acquisition unit collects physiological sound signals. After being coupled by the coupling capacitor IC1, the collected physiological sound signals enter the amplification and noise reduction unit and the power amplification unit for amplification and noise reduction processing. The processed physiological sound signals are output from the signal output interface P1 and input to the self-switching control circuit through the physiological sound signal interface P3.

[0036] When uploading audio to terminal device 4, the delay control circuit I in the uploading signal switching control unit controls the output of analog switch chip IU4. Specifically, when the user does not speak, i.e., when there is no sound signal output from the headphone microphone 6 connected to the headphone signal interface P4, the input signal of the operational amplifier IIU5 in the delay control circuit I is zero, the amplifier circuit does not function, and outputs a low-level signal. MOSFET IQ3 is cut off, MOSFET IIQ4 is turned on, and outputs a low-level control signal to control the analog switch chip IU4 to output the physiological sound signal from the physiological sound signal interface P3. This physiological sound signal is coupled to the USB audio decoding circuit through the coupling capacitor IIC9. Subsequently, the USB audio decoding circuit converts the physiological sound signal into a signal that conforms to the USB audio protocol and transmits the signal to terminal device 4 through the USB interface circuit, thereby realizing the uploading of the physiological sound signal. Conversely, when the user speaks (i.e., when there is an audio signal output from the headphone microphone 6 connected to the headphone signal interface P4), the input signal of the operational amplifier IIU5 is not zero. The signal will be amplified by a high factor, outputting a high-level signal. MOSFET IQ3 is turned on, MOSFET IIQ4 is turned off, and a high-level control signal is output to control the analog switch chip IU4 to output the audio signal from the headphone microphone 6. This audio signal from the headphone microphone 6 will be coupled to the USB audio decoding circuit through the coupling capacitor IIC9, thus enabling the uploading of the user's voice.

[0037] When audio is output to the user's wired headphones, the output signal is controlled by the delay control circuit II in the switching control unit, which controls the output of the analog switch chip IIU3. Specifically: when the remote doctor does not transmit voice (i.e., the terminal device 4 has no audio signal output), the play signal is high, MOSFET IIIQ1 is turned on, MOSFET IVQ2 is turned off, and a high-level control signal is output to control the analog switch chip IIU3 to output the physiological sound signal from the physiological sound signal interface P3. This physiological sound signal is then output to the two earpieces 5 through the headphone signal interface P4, thereby enabling the output of the physiological sound collected by the stethoscope to the user. Conversely, when the remote doctor transmits voice (i.e., the terminal device 4 has an audio signal output), the play signal is low, MOSFET IIIQ1 is turned off, MOSFET IVQ2 is turned on, and a low-level control signal is output to control the analog switch chip IIU3 to output the sound signal VL / VR from the terminal device 4. This sound signal VL / VR is then output to the two earpieces 5 through the headphone signal interface P4, thereby enabling the output of the remote doctor's voice to the user.

[0038] In summary, compared with the prior art, the stethoscope device provided in this embodiment has the following advantages:

[0039] Firstly, by setting up the stethoscope body, USB adapter 3, and terminal device 4, a data transmission channel is provided, which can transmit the physiological sound signals collected by the stethoscope body to the terminal device 4, and then to the remote doctor's end; compared with the traditional stethoscope which is limited to on-site use, this utility model realizes online remote diagnosis and treatment.

[0040] Secondly, it also provides a power channel, which allows the terminal device 4 to supply power to the stethoscope body. Compared with existing electronic stethoscopes that require built-in batteries or external power sources, this utility model achieves a lightweight, battery-free design that can be "plug and play", thereby effectively improving ease of use and reducing raw material and maintenance costs.

[0041] Thirdly, by setting up a self-switching control circuit, the input and output of physiological sounds and speech can be automatically switched, enabling good interaction between the user end and the remote doctor end. Moreover, the user's speech input does not need to be made through the stethoscope head 1, but is collected through the headphone microphone 6, thereby effectively avoiding distortion problems and improving ease of use.

[0042] It should be noted that the parts not described in detail or in detail in the above solution, such as the specific structure of the earpiece, the detailed construction of each circuit, the OTG power supply function and the specific content of the USB audio protocol, are all existing technologies and are not improvements made by this utility model to the existing technology, nor are they within the protection scope of this utility model's technical solution. Therefore, they will not be elaborated on in this article.

[0043] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. A stethoscope device for online use, characterized in that: It includes a stethoscope body, a USB adapter (3) and a terminal device (4), wherein the USB adapter (3) is electrically connected to the stethoscope body and the terminal device (4) respectively; the stethoscope body is provided with a physiological sound signal acquisition circuit, and the USB adapter (3) is provided with a USB audio decoding circuit and a USB interface circuit.

2. The stethoscope device for online use according to claim 1, characterized in that: The stethoscope body includes a stethoscope head (1) and a handle (2). One end of the handle (2) is connected to the stethoscope head (1), and the other end is connected to a USB adapter (3) via a wire. The handle (2) is equipped with a physiological sound signal acquisition circuit.

3. The stethoscope device for online use according to claim 2, characterized in that: The USB adapter (3) includes a housing, one end of which is connected to the handle (2) via a wire, and the other end is connected to the terminal device (4) via a USB adapter cable; the housing is provided with a USB audio decoding circuit and a USB interface circuit, the USB audio decoding circuit is connected to the physiological sound signal acquisition circuit and the USB interface circuit respectively, and the USB interface circuit is connected to the USB interface of the terminal device (4).

4. The stethoscope device for online use according to claim 2, characterized in that: The physiological sound signal acquisition circuit includes a signal acquisition unit, an amplification and noise reduction unit, and a power amplification unit connected in series.

5. The stethoscope device for online use according to claim 3, characterized in that: The housing also contains a voltage stabilizing circuit.

6. The stethoscope device for online use according to claim 3, characterized in that: It also includes wired headphones, which are electrically connected to the USB adapter (3); the internal housing of the USB adapter (3) is also provided with a self-switching control circuit, which includes a physiological sound signal interface, an upload signal self-switching control unit, an output signal self-switching control unit and a headphone signal interface connected to each other. The physiological sound signal interface is connected to the output end of the physiological sound signal acquisition circuit and the upload signal self-switching control unit is connected to the input end of the USB audio decoding circuit.

7. The stethoscope device for online use according to claim 6, characterized in that: The uplink signal self-switching control unit includes a delay control circuit and an analog switch chip connected together. The delay control circuit includes an operational amplifier and two MOS transistors connected together.

8. The stethoscope device for online use according to claim 6, characterized in that: The output signal self-switching control unit includes a delay control circuit and an analog switch chip connected together. The delay control circuit includes two MOS transistors connected together.

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