CN220988806U - Auscultation microphone connector - Google Patents

Abstract

The auscultation microphone connector is a connecting device in the electroacoustic stethoscope system and consists of a microphone and the auscultation head or accessories connected with the auscultation head in a matching way, the microphone is arranged between the auscultation head connected with the auscultation head and an earplug at the outlet of the sound guide tube, and the microphone is matched with an audio cable to be connected and a special plug for audio to form an independent connecting device; the circuit provided with the electroacoustic signal acquisition attenuation switch on the auscultation microphone is connected into the circuit of the special audio plug for attenuating feedback howling. Dual stethoscope head stereo recording signals are proposed to improve stethoscope performance.

Description

Auscultation microphone connector

Technical Field

The utility model discloses an auscultation microphone connector, which comprises an auscultation head, a microphone which is used for conducting information together with the auscultation head, an accessory connected with the auscultation head and a related circuit, and is a matching connecting piece in an electroacoustic stethoscope system, and relates to matching and manufacturing of the stethoscope and the sound-electricity conversion connection of a sound amplifying, recording and electroacoustic system.

Background

Since the use of stethoscopes in medical diagnosis, sound waves are conducted by a stethoscope head through a rubber tube or the like and are directly connected to the human ear. The traditional auscultation head Aa is a hollow bowl body, a sealed vibrating diaphragm is arranged at the large opening end, and acoustic signals of organs of a human body are collected by contacting the human body; compressed to a small opening end for output, the small opening is communicated with the rubber sound guide tube, and the rubber sound guide tube is transmitted into the human ear through the conduit of the ear hook Ac and the earplug Ab. The stethoscope also comprises a dual-purpose stethoscope head Aa which is connected by the dual-sound guide pipe Ad of fig. 1 and has changeable front and back sides, wherein one stethoscope head can be opened without a diaphragm. Stethoscope is an important weapon for clinicians, and is a simple, reliable, quick and noninvasive clinical examination means. The use of the traditional stethoscope only allows for the contact and immediate auscultation limitation of a single person, which affects the accuracy degree of the stethoscope; when medical staff wears the protective clothing, facing auscultation of infectious diseases, the ear-hanging earplug of the traditional stethoscope obviously cannot be normally used; when unknowing to an asymptomatic patient, conventional stethoscopes are operated even at risk of being infected. The earphone cannot be normally used because of the earphone, and the novel development of various intelligent and electronic stethoscopes for auscultation is also adopted, and the reason for seeking the earphone is to prevent feedback howling by adopting an ear-hanging earplug and the earphone for auscultation; this conventional auscultation method is not compatible with wearing protective clothing for infectious diseases ≡! Thus restricted from being used-! !

If the sound is amplified by using other traditional electroacoustic techniques, the sound collection in a small space of 15-20 m consulting room is that the sound collection of a monitoring sound box cannot be used in real time-! The sound signal collected by stethoscope is mixed into collected signal immediately after microphone sound-electricity conversion, circuit amplification and driving loudspeaker box to make real-time sound amplification and play, in which parasitic harmonic distortion signal is repeatedly and circularly amplified to produce high-frequency feedback whistle, so that the high-pitch loudspeaker can be directly burnt seriously. Therefore, 1, the intelligent stethoscope, the electronic stethoscope and the like adopt headphones to listen to sound so as to isolate feedback howling, and cannot be directly used after the infectious disease protective clothing is worn; nor can it be used as a traditional sound box. 2, the microphone is not used for collecting sound waves, a sensitive 3-axis displacement sensor is used for collecting signals, and as a result, sound wave signals in the air in the chest and abdominal cavity are incompletely collected, external interference such as ground vibration and hand trembling are mistakenly collected, and the collected signals are unreal after being processed by a computer. 3, the traditional electroacoustic technology can inhibit howling, and the electric signal picked up by the microphone can be subjected to frequency shift correction to directly cause sound distortion, or a high internal damping low sound velocity vibrating diaphragm is adopted, so that the microphone can only be used for low-grade application with large distortion degree. Traditional electroacoustic technology is not suitable for the accurate medical diagnosis requirement.

By using routine auscultation to check respiratory tract infection and cardiopulmonary infection, doctor can detect respiratory tract and cardiopulmonary breath, even heart blood flow pulsation lesions at early stage, grasp patient's change of illness state at any time, is simple and effective and does not harm patient's immunity-! When the conventional stethoscope cannot be used due to the influence of infectious diseases, the patient needs to be checked for multiple CT examinations with the following diagnosis, which is very unfavorable for the rehabilitation of the patient! ! The important rehabilitation of patients depends on the immunity-! CT examinations should be minimized. The heart of the doctor, doctor and modern medicine face difficult choices-! In order to achieve effective and safe use of the stethoscope, a sound box and an electroacoustic broadcasting system which can inhibit howling are matched, so that the broadcasting and broadcasting of electroacoustic information of a patient can be monitored in real time, and the follow-up examination of the stethoscope is restored; meanwhile, the nondestructive digital recording is adopted to collect data, so that repeated reading, comparison and analysis are realized, and a consultation is carried out. After maturation, the intelligent discrimination of the database is realized.

Disclosure of Invention

The current recovery of the stethoscope to check the change of illness condition with the diagnosis is a urgent problem to be solved-! Only if the medical method is perfected from various aspects can the society stably develop-! The society has paid a very high price for this-! ! In view of the fact that the high-definition loudspeaker diaphragm adopts the technology of resonance damping RAD (patent number 2012103756914), the restriction of the traditional internal damping material is subverted, and the diaphragm is manufactured by adopting high-sound-speed materials. With this core component: 1, a single loudspeaker realizes a 55-17000 Hz full-frequency response system, accords with the standard sound source 'no frequency division/combination in the range of 100-10000 Hz', thoroughly eliminates the distortion of an intermediate frequency sensitive area formed by frequency division/combination near 1000Hz, and meets the high standard requirement of medical diagnosis. 2, the transient performance of the diaphragm has extremely high fidelity, and the distortion degree smaller than 1 percent is more than the standard of a high-fidelity loudspeaker system-! The device can safely and clearly listen to the pulsation of the heartbeat and blood flow of a patient and the flowing sound of the lung breathing gas, and efficiently and clearly diagnose the condition changes of the respiratory tract and the heart and lung of the patient. 3, the full high sound velocity material diaphragm with caliber of 165 mm naturally forms focusing at 1000Hz, has clear level positioning and can avoid a microphone by utilizing the strong directivity. The high-definition loudspeaker has extremely good acoustic quality and shows the effect of restraining high-frequency howling; the inventive ≡ highlighting its application on electroacoustic stethoscopes! The requirements of wearing protective clothing are completely met, and the electric acoustic information of the patient is recorded by suppressing howling in a room space of 20 square meters. The existing electroacoustic equipment can realize lossless digital sound collection and recording and monitor broadcasting in real time; the method can be used for repeatedly broadcasting, displaying sound wave patterns, comparing and analyzing, and performing diagnosis on difficult and difficult cases, and computer intelligent recognition and diagnosis engineering is developed on the basis of accumulated data. Only if the problems are continuously found and solved in practice, the fully mature product and diagnosis and treatment method can be realized, and the stethoscope with excellent performance is formed by the following steps! The high definition electroacoustic stethoscope is a viable option-! The electroacoustic system for converting the sound signals collected by the stethoscope head into the electric signals and directly inputting the electric signals into the sound amplifying, recording and monitoring playing is connected by matching the stethoscope head connector, so that the traditional stethoscope is perfectly combined with the traditional real-time monitoring high-definition broadcasting electroacoustic system, and the sound signals are stored in a mature high-definition lossless digital recording mode.

The purpose of the utility model is that: based on the ancient traditional stethoscope, the utility model uses the new technology of 'resonance damping (RAD)' acoustic subversion, adopts a mature sound-amplifying and recording electroacoustic system, completes the matching connection by the auscultation microphone connector, integrates the existing products and technologies of electroacoustic equipment, and makes a safe and efficient high-definition electroacoustic stethoscope after wearing protective clothing so as to adapt to the requirements of medical development. Particularly meets the current requirements of the follow-up examination of patients; on the basis of recording and accumulating digital diagnosis data, intelligent auscultation research work of patient's illness state is carried out by a computer.

The key points of the utility model are as follows: the method comprises the steps of collecting sound signals in vitro, reserving a stethoscope head and a sound conduction part of the traditional stethoscope, and selecting a microphone Mi with a microphone arranged at a proper position from the inside of a hollow bowl body of the stethoscope to an ear-hanging plug at the end of a sound guide pipeline of the stethoscope, wherein the collected sound signals are converted into electric signals by an audio cable with enough length, and the electric signals are connected to a special plug Mc. The stethoscope sound signal is transmitted through the matching of the stethoscope microphone connector, the special plug Mc of the audio cable is inserted into the existing sound amplifying and recording electroacoustic sound system, such as a notebook computer, a tablet computer, a mobile phone, a wireless microphone transmitter and the like, and the microphone of the stethoscope, including other electroacoustic sound products, is externally connected with a microphone socket M, and the electroacoustic signal is output through the electronic equipment, or is directly transmitted to a high-definition loudspeaker and a sound box with various applicable specifications through a power amplifier, so that the sound box of the stethoscope can be used for broadcasting in real time. Therefore, according to the principle requirement of the high-definition electroacoustic stethoscope, the auscultation microphone connector is matched with the requirements of integrating and selecting the traditional stethoscope and mature products of the existing electroacoustic systems such as a recording pen, a wireless microphone of a collar clip, a notebook, a tablet computer, a mobile phone, electroacoustic sounds and the like, and the auscultation microphone connector is matched and connected to quickly form the high-definition electroacoustic stethoscope suitable for preventing infectious disease equipment. The auscultation microphone connector is simpler, more ingenious and reasonable in design, and has extremely wide compatibility and universality. As an independent connecting fitting, the existing equipment and technology are integrated and recombined to form the high-definition electroacoustic stethoscope which is suitable for preventing infectious disease equipment, and the creativity of the auscultation microphone connector is highlighted.

According to the auscultation microphone connector, the primary circuit switch can be added on the auscultation head, when the auscultation head is separated from a human body, the switch controls the microphone Mi to be in a weak recording signal working state, the sensitivity of the microphone Mi for collecting sound signals is reduced, the isolation between the recording microphone and the loudspeaker box is increased, and feedback howling is further restrained. The collected electroacoustic signals are processed by an analog-to-digital coding/decoding functional module, and the sound recording is stored in a CD digital signal format which is preferably lossless and comprises a WAV format which is preferably 1536KBPS and can even reach 3072KBPS; the mp3 format may also be downward compatible. The audio and video monitoring electroacoustic signals are transmitted to the power amplifier by wire or wireless (such as Bluetooth), after the electroacoustic signals are amplified, the high-definition loudspeaker box is pushed to broadcast, and the audio and video monitoring electroacoustic signals can be listened by all doctors on site, and of course, the audio and video monitoring electroacoustic signals can also be listened by using the head-mounted high-definition loudspeaker. After the doctor on site wears the protective appliance, the doctor can clearly hear all sounds generated by the respiratory tract and the heart and lung organs of the patient; storing the collected lossless digital information for sample reservation; the repeated playing and comparison, consultation and comparison, commentary and diagnosis, network communication and resource sharing are facilitated. The corresponding sound wave graphic information is displayed after the sound wave graphic circuit processes, and the intelligent judgment and diagnosis of the patient by the computer is realized after the database accumulates experience.

Compared with the prior art, the invention has the following advantages:

The stethoscope is characterized in that a traditional stethoscope, a stethoscope head and an auscultation microphone connector are matched, electronic equipment and technology formed in the market are integrated and selected, the stethoscope is quickly combined into the high-definition electroacoustic stethoscope, medical follow-up examination can be realized under the condition that protective clothing equipment is worn, a high-definition loudspeaker and a loudspeaker box of the stethoscope monitor a broadcasting system in real time, and the stethoscope can inhibit higher harmonics and feedback howling and can be used by single medical staff and auscultated on site by consultants.

2, The auscultation microphone connector is matched with a microphone external microphone socket M of existing and wireless microphones, recording pens, notebooks, tablet computers, mobile phones and other electroacoustic sound products in the market, and is widely compatible and extremely good in universality.

And 3, the auscultation microphone connector is connected with a sound amplifying and recording electroacoustic system to push a high-definition loudspeaker and a sound box thereof, the sound pressure of the sound signal amplified by the electroacoustic system is high, the volume adjusting range is wide, the played sound is clear, the auscultation microphone connector is real and reliable, and the sound of the heart pulsation and the lung breathing gas flow of a patient can be safely and clearly heard after a doctor wears an infectious disease protection tool.

And 4, the auscultation microphone connector is connected with the sound amplifying and recording electroacoustic system, so that the real-time monitoring is clear, the information of the acquired patient is accurate, the digital nondestructive storage sample reservation of the sound recording information can be performed, the auscultation record can be played repeatedly, the history record can be played back, and the analysis and comparison of the difficult and difficult symptoms are facilitated.

And 5, an electric switch is added on the auscultation microphone connector, when the auscultation microphone is separated from a human body, the switch controls the microphone to be in a weak recording signal working state, the sensitivity of the microphone for collecting sound signals is reduced, the isolation between the recording microphone and the loudspeaker box is increased, and howling is inhibited.

And 6, the stethoscope or the stethoscope head connector is low in price and convenient to be used after disinfection or disposable with low cost.

7, The auscultation head and auscultation microphone connector part which are close to the body of the patient are used, the electric signals are transmitted through the grounding shielding audio cable, the hidden trouble of interference to the patient and other medical electronic equipment is safely eliminated, and electromagnetic radiation is completely avoided; in addition to the basic whole system of wired transmission, the wireless signals such as infrared (no electromagnetic wave), bluetooth, high frequency and the like can be additionally arranged at the rear part of the auscultation microphone connector, and the wireless signals are far away from the heart of a patient by more than one meter, so that the electromagnetic interference to the patient (such as a cardiac pacemaker) can be reduced.

8, The two auscultation miaow head connectors are arranged in parallel, and stereo double-track recording and playing are carried out, so that a virtual stereo effect is formed, the layering sense of sound images is generated, and the patient condition distribution state can be known more clearly.

Drawings

Fig. 1 is a schematic diagram showing the connection of a conventional stethoscope to a recording electroacoustic system according to scheme 1, wherein two earplug holders are integrated into one stethoscope head connector.

Fig. 2 is a cross-sectional view of the connection of the earpiece plug and earpiece seat of the stethoscope.

Fig. 3 shows a conventional stethoscope connected to a stethoscope head connector with two ear plug holders separated.

Fig. 4, the stethoscope head is connected with the microphone and becomes an stethoscope head connector, namely an electroacoustic stethoscope head.

Fig. 5 is a schematic diagram showing the connection of the auscultation microphone connector to the mobile phone socket to form scheme 2. The existing electronic products such as notebook computers and mobile phones are used, the audio output earphone and the input recording share one plug, and the connected socket is divided into two independent earphone sockets and a recording socket.

Fig. 6, the auscultatory microphone connector desense control circuit, recommends 3 schematic diagrams for test, and the sequence numbers of the circuit embodiments are arranged in the order described by the figure numbers, (fig. 6-1) is the first circuit embodiment, (fig. 6-2) is the second circuit embodiment, and (fig. 6-3) is the third circuit embodiment.

Fig. 7, modified auscultatory microphone connector with attenuation sensitivity switch.

Fig. 8, auscultatory microphone connector integrated with two heads.

Detailed Description

Specific embodiments are described in detail below with reference to the accompanying drawings.

The method is directly matched with the existing equipment, and firstly, the method realizes the real-time high-definition loudspeaker sound box monitoring broadcasting of auscultation through a wireless microphone (microphone). The stethoscope is transmitted by the auscultation microphone connector, the audio cable special plug Mc, ① is inserted into the microphone external microphone socket M of the wireless collar clip microphone transmitter, the collected electric signal is processed, and then the collected electric signal is emitted wirelessly (infrared signals can be adopted) to emit the signal, and the signal is received by the wireless microphone receiver and is connected with the power amplifier to push the high-definition loudspeaker box for broadcasting in real-time monitoring. ② The microphone is inserted into the microphone socket M, and the high-definition loudspeaker sound box is pushed by the wire connection power amplifier, so that the most basic real-time broadcasting of the high-definition electroacoustic stethoscope can be realized. ③ Matching requires attention to: the collar clip type wireless microphone transmitter or the wired microphone amplifier is required to be provided with an adaptive microphone external microphone socket M or connected by a proper conversion plug, if the system is required to have a recording function, the system is also required to be provided with a tapping monitoring socket, and the selected recorder is required to be capable of being connected with the monitoring socket in a matching way and can be used for lossless CD-level recording storage.

In the second way, the auscultation signal in fig. 1 is transmitted through the auscultation microphone connector, and the audio cable special plug Mc is inserted into the microphone external microphone socket M of the recorder LY. The collected and recorded electric signals are stored and processed by a digital signal of a recorder LY, and the monitored and amplified electric signals are communicated with a power amplifier GF by a wired plug JTS and directly broadcast to a monitored sound box Xc in real time; the monitoring electric signal can also be transmitted to the active monitoring sound box or the Bluetooth power amplifier to drive the sound box, and the sound box of the high-definition loudspeaker plays the sound in real time. Note that here the functional requirements of the selection of the equipment are: the audio recorder LY needs to have a microphone external microphone socket M, the audio recording needs to reach CD-level lossless recording format, and needs to have a monitoring wired socket JT output or a monitoring Bluetooth output for the power amplifier GF to push the loudspeaker Xc to broadcast.

In the third way, auscultation signals are transmitted through an auscultation microphone connector, an audio cable special plug Mc is inserted into a notebook computer, a tablet personal computer and a microphone external microphone socket M of a mobile phone or other electroacoustic sound products, and the electronic equipment outputs monitoring electroacoustic signals or directly broadcasts in real time through a high-definition loudspeaker box through a power amplifier. The mobile phone, the computer and the like are provided with sound recording and sound wave graphic function programs.

Fig. 1, scheme 1: the traditional stethoscope A is completely reserved, the double ear plugs Ab of the stethoscope are respectively and directly inserted into ear plug seats Ba of a microphone double-microphone connector, the stethoscope is an auscultation microphone connector with the double-microphone ear plug seats as a whole, the microphone Mi side arranged on the ear plug seat Ba is open to an ear plug pipeline (see figure 2), an acoustic signal is smoothly transmitted to the microphone Mi through an air duct, and meanwhile, the stethoscope is kept airtight to the outside, the ear plug Ab and the ear plug seat Ba of the stethoscope can be sealed by flexible rubber, plastic and other materials, and an ear plug socket can be inlaid with a soft rubber pad Baa; the auscultation collected sound signals are respectively recorded and converted into analog electroacoustic signals through double microphones Mi, the analog electroacoustic signals are directly transmitted through double-channel lines, and the analog electroacoustic signals are directly inserted into an external microphone socket M of a double-channel microphone of a recorder LY through a three-core audio connecting line MX and a 3.5mm three-wire special plug Mc. Fig. 3 is a view of the stethoscope head connector with a binaural plug holder separator.

The stethoscope head is provided with a microphone Mi, namely the electroacoustic stethoscope head in figure 4. The microphone Mi is arranged in the sound signal output small port end Am of the traditional stethoscope head, the collected sound signal is converted into an electric signal, the electric signal is connected to the special plug Mc with phi 3.5mm by the audio cable MX with enough length, and the length from the microphone Mi to the special plug, namely the length of the cable from the stethoscope head to the amplifying and recording machine is generally designed by calculating about 1.4 meters according to the distance from the stethoscope head to a doctor pocket during working. The special plug Mc for the audio cable is inserted into an external microphone socket M connected with a wireless microphone, and the microphone is connected with a power amplifier to push a sound box. The conventional stethoscope of fig. 1 and 3 and the stethoscope head connector of fig. 4 are used for diagnosis of infectious diseases, and are used or disposable after low-cost sterilization.

Fig. 5, the microphone external microphone socket YP of the notebook, tablet computer and mobile phone in the market now is a monaural input by external microphone Mi and a two-way output earphone, which share a 3.5-diameter four-wire socket YP, and a popular wire-dividing adapter fig. 5 can be used, and the audio output earphone and the input audio share a plug YPc, and the sockets thereof are divided into an independent earphone socket JT and an independent audio socket M. One of them is 3.5 external miaow Mi monaural socket M supplies to connect the miaow Mi of auscultation to use, in order to improve audio quality, does not generally adopt the parallelly connected direct monaural track recording of two miaow Mi of microphone, prefers to select the miaow Mi connector of fig. 4 monaural auscultation to match and use. All transmission lines adopt audio shielding cables, and note that the outer metal shielding layer needs to be effectively connected with a public ground wire, so that shielding effect is guaranteed. In the special medical occasion, the recorder records the analog signal in a lossless format after converting the analog signal into a digital signal, and when the monitoring signal is transmitted into the power amplifier for amplification, the frequency response adjustment (EQ adjustment) is carried out for the sound box, and the sound box is used for broadcasting. In order to avoid electromagnetic interference affecting other devices, the most basic scheme of adopting a wired microphone such as a path one is to use wired connection for broadcasting.

(Mi in FIG. 6 is a microphone circuit, RL and C2 are matching elements of a microphone connected with the microphone.) when the auscultation microphone connector in FIG. 4 is adopted to collect signals, in order to further improve the isolation between the collected sound signals and the real-time playing monitoring signals, the working state of the microphone Mi for collecting information can be controlled besides the auscultation head by utilizing the strong directivity of the loudspeaker, when the auscultation head contacts a human body, the vibrating diaphragm of the auscultation head is covered by the human body, and at the moment, the sound emitted by the monitoring sound box and the vibrating diaphragm of the auscultation head are in an isolated state, and the microphone Mi is also in a normal working state; a self-locking micro switch Mk is added on the stethoscope head, see FIG. 7; when the microphone is connected with the audio cable, a circuit provided with an electroacoustic signal acquisition attenuation switch on the microphone is connected into a circuit of the special plug for audio by the audio cable. The first circuit embodiment is shown by the circuit diagram of fig. 6-1, wherein the switch Mk6-1 is connected in series with the bypass capacitor C6-1 and then connected in parallel with the microphone Mi, and the switch Mk6-1 is in an off state; a third circuit embodiment is shown by the circuit diagram of fig. 6-3, wherein the bypass capacitor C3 is connected in series with the field effect transistor and then connected in parallel with the microphone Mi, the switch Mk6-3 is in an off state, and the bypass capacitor C3 is turned on by the switch Mk6-3 to be turned on and controlled by the field effect transistor. When the stethoscope head is separated from a human body, the switch Mk6-1 of the first circuit embodiment in fig. 6-1 is in a conducting state, the switch Mk6-3 of the third circuit embodiment in fig. 6-3 is in a conducting state, and the switch Mk6-2 of the second circuit embodiment in fig. 6-2 is in a breaking state, so that the microphone Mi is controlled to be in a weak recording signal working state, the sensitivity of the collected sound signals is reduced, the isolation degree between the recording microphone and the loudspeaker box is increased, and feedback howling is further restrained. The following schematic diagrams can be selected to make adjustments as needed. First circuit embodiment fig. 6-1 shows a schematic diagram of attenuation of an electric signal by controlling the on state of the self-locking micro switch Mk6-1 and controlling the bypass capacitor C6-1 to short-circuit the parallel microphone Mi, and the capacitance needs to be adjusted to reduce the switching impact sound. The second circuit embodiment is shown in fig. 6-2, and the attenuation microphone sensitivity principle of the inductance L6-2 connected in series with the microphone Mi is shown, at this time, the self-locking micro switch Mk6-2 is on the way, the inductance L6-2 connected in parallel with the switch Mk6-2 is short-circuited and does not work, and the microphone Mi collects the electrical signal and transmits to the audio special plug through the switch Mk 6-2; when the switch Mk6-2 is in an open circuit state, the inductor L6-2 blocks the audio signal from passing through, the direct current resistance is small, the direct current voltage is basically unchanged, the impact current is small, the smaller the inductance is, the lower the frequency is, the smaller the attenuation is, and the attenuation of the medium-high frequency howling signal is large; the inductance needs to be tested to suit the requirements. In a third circuit embodiment, in fig. 6-3, a switch Mk6-3 is used for controlling the conduction of a field effect transistor, a schematic diagram of attenuating an electric signal is provided by connecting a microphone Mi connected in parallel in a short circuit after the field effect transistor is connected in series with a capacitor C3, the number of elements in the schematic diagram is more, the switch Mk6-3 is in a conduction state, the electric signal collected by the microphone is attenuated by connecting the capacitor C3 and the field effect transistor in a short circuit, and the performance is perfect; besides the conventional adjustment of resistance and capacitance, the leakage of AC signal is prevented. The C4 can be replaced with a resistor.

Fig. 8, a double-head integrated auscultation microphone connector is arranged, and a parallel auscultation head and a built-in microphone Mi are added on the basis of fig. 4. The distance between the two stethoscope heads is kept by the connecting plate Af, ah is a sphere connector with free swing, and the tightness of the contact surface of the stethoscope head vibrating diaphragm and the human body is ensured. The two microphones Mi share a 3-core audio cable MX, one sound channel of the 3.5mm three-wire special plug Mc is tapped, and the tail end section of the plug is a public ground wire. According to the principle of fig. 6, two microphone Mi control circuits are respectively connected, and after the two microphone Mi are connected, the two microphone Mi is connected to a three-wire special plug Mc through a double-channel 3-core audio shielding cable MX. The main purpose is by the two auscultation heads collection virtual stereophonic signal of arranging, record the replay usefulness through the two track passageway, with the help of the high definition performance of equipment, the sound field is clear, and the level is clear, with the help of the regional auscultation of two auscultation heads cover, realizes the virtual stereophonic effect of ears, expects the layering sense that can produce the sound image, and clearer understanding patient's state of illness distributes the state. The stereo head-mounted high definition speaker is required to broadcast and listen to, or the emperor position of the binaural sound box is required to listen to.

Claims (9)

1. The auscultation microphone connector is a connecting device in an electroacoustic stethoscope system, and is characterized in that: a microphone is arranged in an earplug seat for the matching insertion of an earplug of the stethoscope, and is connected to a special plug by an audio cable, so that a stethoscope microphone connector consisting of the microphone and the earplug seat matched with the stethoscope is formed;

Or a microphone is arranged on the sound conduction part of the stethoscope from the interior of the hollow bowl body of the stethoscope to the earplug at the outlet of the sound guide tube, the microphone is connected to a special plug by an audio cable, and the sound conduction part of the stethoscope with another characteristic is provided with a stethoscope microphone connector of the microphone;

Or an attenuation switch for collecting electroacoustic signals is arranged on the auscultation microphone connector with the other characteristic so as to inhibit feedback howling; the auscultation microphone connector is formed by connecting a circuit provided with an electroacoustic signal acquisition attenuation switch on the microphone with a circuit connected to a special plug through an audio cable;

All the outer metal shielding layers of the transmission lines of the auscultation microphone connector are reliably connected with a public ground wire.

2. The auscultation microphone connector of claim 1, wherein: the earplug seat is provided with an auscultation microphone connector of the microphone, and the microphone side of the earplug seat is provided with a pipeline opening of the earplug;

The stethoscope sound conduction part with the other characteristic is provided with a stethoscope microphone connector of a microphone, the microphone is arranged in the sound wave output small port end of the stethoscope, the microphone directly transmits an audio cable to a special plug, the sound signal collected by the microphone is converted into an electric signal, the electric signal is transmitted to the special plug through the audio cable, the electric signal is matched and inserted into the existing sound amplifying and recording electroacoustic system and a microphone external microphone socket of a wireless microphone, and the electroacoustic signal is output through the electronic equipment;

The auscultation microphone connector is characterized in that an attenuation switch for collecting electroacoustic signals is arranged on the other characteristic, a microphone is arranged in a small sound wave output port end of the auscultation microphone, when the auscultation microphone is in contact with a human body, a vibrating diaphragm of the auscultation microphone is covered by the human body, a sound made by a monitoring sound box and the vibrating diaphragm of the auscultation microphone are in an isolated state, the microphone (Mi) is also in a normal working state, a first circuit embodiment structure is arranged, a switch (Mk 6-1) is connected with a bypass capacitor (C6-1) in series and then connected with the circuit of the microphone (Mi) in parallel, and the switch (Mk 6-1) is in an open state; in cooperation with the auscultation head to separate from a human body, the switch (Mk 6-1) is in a conducting state, and the switch controls the microphone to be in a weak recording signal working state, so that the isolation between the recording microphone and the loudspeaker box is increased, and howling is inhibited.

3. The auscultation microphone connector of claim 1, wherein the connector with the microphone disposed within the ear plug receptacle is characterized by: wherein two earplug seats are arranged and connected into an independent whole, and an audio cable and a special plug are connected to form a connector with the two earplug seats as a whole; or the two ear plug seats of the separating body are respectively and independently connected with the audio cable, and are converged into a cable and then connected with the special audio plug to form the auscultation microphone connector of the separating body of the two ear plug seats; a3.5 mm three-wire special plug is arranged for being directly inserted into an external microphone socket of a microphone.

4. A stethoscopic microphone connector according to claim 3, wherein: the earplug socket is inlaid with a soft rubber pad, and is sealed by flexible rubber and plastic materials arranged between the earplug and an earplug seat of the stethoscope, so that the stethoscope is airtight to the outside, and meanwhile, the smoothness of sound signals from the sound guide pipe to the microphone is kept.

5. The stethoscope microphone connector of claim 1, wherein the stethoscope sound conducting portion from the interior of the hollow bowl of the stethoscope head to between the outlet ear tips of the sound guide tube is provided with a microphone connector, wherein: the sound signal output small port end of the stethoscope head is internally provided with a microphone which is connected to a special plug with the diameter of 3.5mm by an audio cable.

6. The auscultation microphone connector of claim 1, wherein the connector with the switching circuit is characterized by: the switch circuit with the primary electric signal attenuation including the micro switch is additionally arranged and separated from the human body along with the stethoscope head, wherein the switch circuit comprises an embodiment structure for forming a first circuit: after the switch (Mk 6-1) in the on state is connected with the bypass capacitor (C6-1) in series, the bypass capacitor is connected with the microphone (Mi) connected in parallel in a short circuit way, so that a circuit for attenuating the electrical signal of the microphone is formed; or an embodiment configuration in which a third circuit is formed: the switch (Mk 6-3) is in a conducting state to enable the field effect tube to be conducted, and the capacitor (C3) is connected with the shunt microphone (Mi) in a short circuit after being connected with the field effect tube in series to form a circuit for attenuating the microphone electric signal; or an embodiment configuration including forming a second circuit: the switch (Mk 6-2) of the parallel inductor (L6-2) is in an open state, so that the inductor (L6-2) connected in series with the microphone (Mi) prevents the audio signal from passing through, and a circuit for attenuating the sensitivity of the microphone is formed; the on state of the switch (Mk 6-1) of the first circuit and the on state of the switch (Mk 6-3) of the third circuit and the off state of the switch (Mk 6-2) of the second circuit control the circuit structure of the microphone in the weak recording signal working state, reduce the sensitivity of the collected sound signal, increase the isolation between the recording microphone and the sound box, and inhibit feedback howling.

7. The auscultation microphone connector is a connecting device in an electroacoustic stethoscope system, wherein the auscultation microphone connector provided with a switch circuit is characterized in that: a microphone is arranged at the sound wave outlet of the stethoscope head, a primary circuit switch is arranged on the stethoscope head, and when the microphone is connected with an audio cable, a circuit which is connected with an electroacoustic signal acquisition attenuation switch is arranged on the microphone and is connected into a circuit which is connected with a special plug through the audio cable; the transmission circuit for converting the sound signals collected by the microphone into electric signals and weakening the collected electroacoustic signals is formed by controlling the switch; the auscultation head is matched with the auscultation head to be separated from a human body, and the switch is used for controlling the microphone to be in a weak recording signal working state, so that a circuit for increasing the isolation between microphone acquisition and sound box playing and inhibiting feedback howling is formed.

8. The switch circuit of the auscultation microphone connector of claim 7, wherein: a microphone is arranged in the small mouth end of the sound signal output of the traditional stethoscope head; when the stethoscope head contacts a human body, the vibrating diaphragm is covered by the human body, at the moment, the sound emitted by the monitoring sound box and the vibrating diaphragm of the stethoscope head are in an isolated state, the microphone is in a normal working state, a switching circuit for attenuating primary electric signals including a micro switch is arranged, wherein the switching circuit is constructed by the embodiment of the first circuit or the switch (Mk 6-1) in the open state is connected in series with a bypass capacitor (C6-1) and then connected in parallel with a switching circuit of the microphone (Mi); wherein or an embodiment structure provided with a third circuit, a switch (Mk 6-3) in an open state controls a switching circuit of a microphone (Mi) connected in parallel after the field effect tube blocks the series bypass capacitor; wherein or an embodiment structure provided with a second circuit, a conducting switch (Mk 6-2) is connected in parallel with an inductor (L6-2) and then connected in series with a microphone (Mi);

The state of the control switch is changed by matching with the auscultation head to separate from the human body, the circuits are used for controlling the microphone to be in a weak recording signal working state, the sensitivity of the collected electroacoustic signals is reduced, the isolation between the recording microphone and the loudspeaker box is increased, and feedback howling is further restrained.

9. The stethoscopic microphone connector of any one of claims 1-8, the connection combination thereof forming a construction of an electroacoustic stethoscope system characterized by: the auscultation microphone connector provided with the earplug seat is matched with a traditional auscultation device, or the auscultation microphone connector provided with a microphone at the auscultation device sound conduction part comprising the auscultation head and the auscultation microphone connector provided with an attenuation switch for collecting electroacoustic signals; through the special plug of auscultation miaow head connector, insert notebook, panel computer, cell-phone to and microphone external miaow head socket (M) of the stereo set product of wired microphone, wireless microphone, recording pen, output electroacoustic signal through these electronic equipment, pass through the amplifier, direct high definition speaker audio amplifier real-time broadcast.