CN213097964U

CN213097964U - Wireless bluetooth stethoscope

Info

Publication number: CN213097964U
Application number: CN202020694566.XU
Authority: CN
Inventors: 窦松然; 刘鑫; 王桂波; 任晓飞; 张思维
Original assignee: Beijing Skc Acoustics Technology Co ltd; Ship Information Research Center No 714 Research Institute Of China Shipbuilding Industry Group Corp
Current assignee: Beijing Skc Acoustics Technology Co ltd; Ship Information Research Center No 714 Research Institute Of China Shipbuilding Industry Group Corp
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-05-04
Anticipated expiration: 2030-04-29

Abstract

In order to solve the problem that the stethoscope can not be used under the condition of wearing protective clothing among the prior art, this disclosure provides a wireless bluetooth stethoscope to make it can use under the condition of wearing protective clothing. The stethoscope comprises an auscultation probe, a sound guide tube, a sound processing device and a wireless Bluetooth headset, wherein the sound processing device comprises a microphone, an audio processing module and a wireless Bluetooth module; one end of the sound guide tube is connected with the auscultation probe, and the other end of the sound guide tube is detachably connected with the input end of the microphone; the output end of the microphone is electrically connected with the input end of the audio processing module; the output end of the audio processing module is electrically connected with the wireless Bluetooth module; the wireless Bluetooth module is in communication connection with the wireless Bluetooth headset.

Description

Wireless bluetooth stethoscope

Technical Field

The utility model relates to the field of medical treatment, especially, relate to a wireless bluetooth stethoscope.

Background

The stethoscope is a medical instrument widely used in medical institutions such as hospitals and clinics at present, and is characterized in that the stethoscope can conveniently and quickly diagnose the illness state of patients by an auscultation mode, and a solution is provided.

However, not to be neglected, the current stethoscope mainly has the following disadvantages: in the face of epidemic situations such as SARS, novel coronavirus and the like, when medical staff rescues patients, the medical staff usually wears a heavy protective clothing, and ears are covered in the protective clothing, so that the traditional stethoscope cannot be used because the earphones cannot be put into the ears; if the protective clothing is taken off only for auscultation, not only can huge waste of the disposable protective clothing be caused, but also medical care personnel can be exposed to a larger risk of being infected, thereby inevitably influencing the treatment efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, the present disclosure provides a wireless bluetooth stethoscope so that medical personnel can use the stethoscope while wearing protective clothing.

In order to achieve the purpose, the wireless Bluetooth stethoscope comprises an auscultation probe, a sound guide tube, a sound processing device and a wireless Bluetooth earphone, wherein the sound processing device comprises a microphone, an audio processing module and a wireless Bluetooth module;

one end of the sound guide tube is connected with the auscultation probe, and the other end of the sound guide tube is detachably connected with the input end of the microphone;

the output end of the microphone is electrically connected with the input end of the audio processing module;

the output end of the audio processing module is electrically connected with the wireless Bluetooth module;

and the wireless Bluetooth module is in communication connection with the wireless Bluetooth headset.

Optionally, the sound processing device is provided with an earphone hole.

Optionally, a sound adjusting button is provided on the sound processing device.

Optionally, a display screen is arranged on the sound processing device.

Optionally, the wireless bluetooth stethoscope further includes a battery, and the battery is electrically connected with the microphone, the audio processing module and the wireless bluetooth module.

Optionally, the input end of the microphone is provided with a circular tube matched with the sound guide tube.

Optionally, the audio processing module includes a pre-amplifier circuit, and an input end of the pre-amplifier circuit is electrically connected to an output end of the microphone.

Optionally, the audio processing module includes a filter circuit, an input end of the filter circuit is electrically connected to an output end of the preamplifier circuit, and an output end of the filter circuit is electrically connected to the wireless bluetooth module.

Optionally, the sound processing apparatus includes a signal conditioning circuit, the signal conditioning circuit includes a first input end, a first output end, a first dc power supply end, an N-channel jfet, a first capacitor, a second capacitor, a first resistor, and a second resistor, one end of the first capacitor is electrically connected to the first input end, the other end of the first capacitor is electrically connected to a gate of the N-channel jfet and one end of the first resistor, respectively, and the other end of the first resistor is grounded; one end of the second capacitor is electrically connected with the first output end, the other end of the second capacitor is electrically connected with the source electrode of the N-channel junction type field effect transistor and one end of the second resistor respectively, the other end of the second resistor is grounded, and the first direct current power supply end is electrically connected with the drain electrode of the N-channel junction type field effect transistor.

Optionally, the wireless bluetooth stethoscope further comprises an ear hook detachably connected with the sound guide tube, wherein the ear hook comprises a three-way tube, two sound guide ear tubes and two listening heads;

one end of the three-way pipe is detachably connected with the sound guide pipe, and the other two ends of the three-way pipe are fixedly connected with the two sound transmission ear pipes respectively;

the two sound transmission ear tubes are respectively connected with the listening head.

Has the advantages that: the utility model discloses a wireless bluetooth stethoscope, when medical personnel dressed the protective clothing, can wear wireless bluetooth headset and use, when not dressing the protective clothing, can dismantle leading note pipe and microphone, then hang leading note pipe and traditional ear and be connected, make it become traditional acoustics stethoscope and use, effectively compromise the advantage of traditional acoustics stethoscope.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram of one connection of a wireless bluetooth stethoscope according to an embodiment of the present disclosure;

FIG. 2 is a block diagram of one connection of a wireless Bluetooth stethoscope according to an embodiment of the present disclosure;

fig. 3 is a connection block diagram of a sound processing apparatus of an embodiment of the present disclosure;

FIG. 4 is a schematic view of a connection of the auscultation probe, the sound guide tube and the ear mount of the embodiment of the present disclosure;

fig. 5 is a circuit diagram of a signal conditioning circuit of an embodiment of the present disclosure.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 and 2, a wireless bluetooth stethoscope comprises an auscultation probe 1, a sound guide tube 2, a sound processing device 3 and a wireless bluetooth headset 4, wherein the sound processing device 3 comprises a microphone 31, an audio processing module 32 and a wireless bluetooth module 33;

one end of the sound guide tube 2 is connected with the auscultation probe 1, and the other end of the sound guide tube 2 is detachably connected with the input end of the microphone 31;

the output end of the microphone 31 is electrically connected with the input end of the audio processing module 32;

the output end of the audio processing module 32 is electrically connected with the wireless Bluetooth module 33;

the wireless bluetooth module 33 is in communication connection with the wireless bluetooth headset 4.

In the embodiment, the front end of the auscultation probe is a vibrating reed and is used for collecting the vibration of human organs and generating sound wave signals; a sound leading tube 2 for transmitting the sound wave signal of the auscultation probe to the microphone 31; the microphone 31 is used for converting the sound wave signals in the sound guide pipe 2 into electric signals and transmitting the electric signals to the audio processing module 32; and the audio processing module 32 is configured to receive the electrical signal sent by the microphone 31, convert the signal, and transmit the signal to the wireless bluetooth headset 4 through the wireless bluetooth module 33, so that the wireless bluetooth headset 4 outputs sound of vibration in a human organ.

In this embodiment, the audio processing module 32 mainly functions to process the audio electrical signal sent from the microphone 31, specifically, impedance conversion and signal conditioning of the microphone signal, so that the audio electrical signal becomes a signal that can be transmitted through the wireless bluetooth module 33.

When epidemic situations and other situations need to wear the protective clothing, medical staff can wear the wireless Bluetooth headset 4 firstly and then wear the protective clothing, and the wireless Bluetooth stethoscope of the embodiment transmits vibration sounds of human organs to the wireless Bluetooth headset 4 after sequentially passing through the auscultation probe, the sound guide tube 2, the microphone 31, the audio processing module 32 and the wireless Bluetooth module 33, so that the medical staff can auscultate the sounds under the situation of wearing the protective clothing; because auscultation probe and leading note pipe 2 are the same with traditional acoustics stethoscope, therefore auscultation probe and leading note pipe on the wireless bluetooth stethoscope that this embodiment provided can carry out the module replacement with traditional acoustics stethoscope, when medical personnel need not dress protective clothing promptly, can dismantle leading note pipe 2 and microphone 31, then hang leading note pipe 2 and traditional ear and be connected, make it become traditional acoustics stethoscope, it is very convenient.

The wireless bluetooth headset 4 can be selected to be head-worn or ear-plugged according to the requirement. Be equipped with the bluetooth receiver in the wireless bluetooth headset 4, the audio signal that sound processor sent is received to the accessible bluetooth. The earphone adopts the active noise reduction technology, can be good shielding surrounding noise, improves the definition of listening sound, and the headphone can stretch out and draw back simultaneously and adjust, can directly wear when wearing protective clothing, facilitates the use.

In one embodiment, referring to fig. 1, the sound processing device 3 includes a device body, wherein the microphone 31 may be located inside the device body; the microphone 31 can also be arranged outside the device body and is in signal transmission with the audio processing module through a connecting wire; the inside of the device body can be set to be 100mm 80mm in size so as to be convenient to carry normally.

In one embodiment, referring to fig. 1, the sound processing device 3 is provided with an earphone hole 34, and the earphone hole 34 may be a 3.5mm universal earphone hole 34, so as to directly connect the earphone to the sound signal output. Make wireless bluetooth stethoscope can lug connection earphone to sound signal output, also can transmit for wireless bluetooth earphone audio amplifier through wireless bluetooth module 33 and export. The Bluetooth module can adopt a BK3221 Bluetooth audio module and the like.

In one embodiment, the input end of the microphone is provided with a round pipe matched with the sound guide pipe, the outer wall of the round pipe is provided with threads, the round pipe is detachably connected with the sound guide pipe, the round pipe is more stable when being connected with the sound guide pipe through the threads, and the length of the threads can be 1/3 of the round pipe, so that the tightness and the sound transmission effect are guaranteed.

In one embodiment, referring to fig. 1, the sound processing device 3 is provided with a sound adjusting button 35, and the sound adjusting button 35 can control the volume of the sound output to cope with the surrounding noisy environment, so that the heard sound is clearer.

In one embodiment, referring to fig. 1, a display 36 is provided on the sound processing device 3, and the display 36 can be used to display the volume of the output volume and the name of the connected wireless bluetooth headset 4.

In one embodiment, the wireless bluetooth stethoscope further comprises a battery, wherein the battery is electrically connected with the microphone, the audio processing module and the wireless bluetooth module, and the battery is adopted for power supply, so that the wireless bluetooth stethoscope can be conveniently carried.

In one embodiment, referring to fig. 2 and 3, the audio processing module 32 includes a pre-amplifier circuit 321, and an input of the pre-amplifier circuit 321 is electrically connected to an output of the microphone 31.

In one embodiment, referring to fig. 2 and 3, the audio processing module 32 includes a filter circuit 322, an input terminal of the filter circuit 322 is electrically connected to an output terminal of the pre-amplifier circuit 321, and an output terminal of the filter circuit is electrically connected to the bluetooth wireless module 33.

The electric signal output by the microphone 31 is amplified by the pre-amplification circuit, and the amplified electric signal is filtered by the filter circuit, so that the wireless bluetooth module 33 sends the electric signal of clear sound to the wireless bluetooth headset 4.

In one embodiment, referring to fig. 4, the wireless bluetooth stethoscope further comprises an ear-hook 5 detachably connected to the sound-guiding tube 2.

In one embodiment, referring to fig. 4, the earhook 5 comprises a tee 51, two sound transmitting ear tubes 52 and two listening heads 53;

one end of the three-way pipe 51 is detachably connected with the sound guide pipe 2, and the other two ends of the three-way pipe 51 are fixedly connected with the two sound transmission ear pipes 52 respectively; two sound conducting ear tubes 52 are respectively connected with a listening head 53.

When medical personnel need not wear protective clothing such as epidemic situation end, can be connected leading note pipe 2 and ear-hang 5, make the whole behind auscultation probe 1, leading note pipe 2 and the ear-hang 5 connection become traditional acoustics stethoscope, be convenient for change and use.

In one embodiment, the sound processing apparatus includes a signal conditioning circuit, see fig. 5, where fig. 5 is a circuit diagram of the signal conditioning circuit, the signal conditioning circuit includes a first input terminal In, a first output terminal OUT, a first dc power supply terminal V, N channel jfet J1, a first capacitor C1, a second capacitor C2, a first resistor R1, and a second resistor R2, one end of the first capacitor C1 is electrically connected to the first input terminal In, the other end of the first capacitor C2 is electrically connected to the gate G of the N-channel jfet J1 and one end of the first resistor, and the other end of the first resistor is grounded; one end of a second capacitor C2 is electrically connected with the first output end OUT, the other end of the second capacitor C2 is electrically connected with the source D of the N-channel junction field effect transistor J1 and one end of a second resistor R2 respectively, the other end of the second resistor R2 is grounded, and a first direct current power supply end V is electrically connected with the drain D of the N-channel junction field effect transistor J1.

The signal conditioning circuit in the embodiment is a JFET type signal conditioning circuit, the implementation of impedance transformation can be effectively guaranteed, the tail end adopts a three-wire system connection mode, the first direct current power supply end V is connected with direct current voltage, the first output end OUT outputs alternating current signals, and the bottom is grounded.

The design has the advantages that the direct-current voltage of the first direct-current power supply end V is adaptive to wide-voltage direct-current power supply, and the circuit can be driven to work no matter a direct-current power supply or a battery; and V and S are separated, so that the alternating current signal output by the first output end OUT is not easily interfered, and the noise of the circuit is reduced. The circuit design is simple and efficient, and the circuit is very suitable for miniaturized and portable sound signal conditioning equipment.

The jfet may be an N-channel jfet of SST201, the first resistor R1 may have a resistance of 1G ohms, the second resistor R2 may have a resistance of 10k ohms, and the first capacitor C1 and the second capacitor C2 may each be a capacitor Cap having a capacity of 1 uF.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. A wireless Bluetooth stethoscope is characterized by comprising an auscultation probe, a sound guide tube, a sound processing device and a wireless Bluetooth earphone, wherein the sound processing device comprises a microphone, an audio processing module and a wireless Bluetooth module;

the wireless Bluetooth module is in communication connection with the wireless Bluetooth headset.

2. The wireless bluetooth stethoscope of claim 1, wherein said sound processing device is provided with an earphone hole.

3. The wireless bluetooth stethoscope as claimed in claim 1, wherein said sound processing means is provided with sound adjustment buttons.

4. The wireless bluetooth stethoscope as claimed in claim 1, wherein said sound processing device is provided with a display screen.

5. The wireless bluetooth stethoscope of claim 1, wherein said wireless bluetooth stethoscope further comprises a battery, said battery being electrically connected to said microphone, said audio processing module, and said wireless bluetooth module.

6. The wireless bluetooth stethoscope as claimed in claim 1, wherein said microphone has an input end provided with a circular tube engaged with said sound-guiding tube.

7. The wireless bluetooth stethoscope as claimed in claim 1, wherein said audio processing module comprises a preamplifier circuit, an input terminal of said preamplifier circuit being electrically connected to an output terminal of said microphone.

8. The wireless bluetooth stethoscope according to claim 7, wherein said audio processing module comprises a filter circuit, an input terminal of said filter circuit is electrically connected to an output terminal of said preamplifier circuit, and an output terminal of said filter circuit is electrically connected to said wireless bluetooth module.

9. The wireless Bluetooth stethoscope according to claim 1, wherein said sound processing device comprises a signal conditioning circuit, said signal conditioning circuit comprises a first input terminal, a first output terminal, a first DC power supply terminal, an N-channel JFET, a first capacitor, a second capacitor, a first resistor and a second resistor, one end of said first capacitor is electrically connected to said first input terminal, the other end of said first capacitor is electrically connected to the gate of said N-channel JFET and one end of said first resistor, respectively, and the other end of said first resistor is grounded; one end of the second capacitor is electrically connected with the first output end, the other end of the second capacitor is electrically connected with the source electrode of the N-channel junction type field effect transistor and one end of the second resistor respectively, the other end of the second resistor is grounded, and the first direct current power supply end is electrically connected with the drain electrode of the N-channel junction type field effect transistor.

10. The wireless bluetooth stethoscope as claimed in claim 1, further comprising an ear-piece detachably connected to said sound-guiding tube, said ear-piece comprising a three-way tube, two sound-transmitting ear tubes and two listening heads;