CN201042437Y - Electronic stethoscope - Google Patents

Abstract

An electrostethophone relates to a multifunctional electrostethophone capable of being applied for two ears and equipped with a bow-shaped element. According to the technical proposal provided in the utility model, the electrostethophone includes a stethoscope head for receiving and transmitting sound generated from the body of a detected person, a sound-guider for transmitting the sound generated from the stethoscope head to the ears of the detecting person, and a connection hose for connecting the stethoscope head and the sound guider; wherein the electrostethophone is characterized in that a chest element for providing power for the stethoscope head is arranged between the sound guider and the stethoscope head, a stethoscope chamber is arranged in the stethoscope head and has an opened opening, a stethoscope film is connected with the opening, the inner end of the stethoscope chamber is thinned into a horn shape, and a sensor for receiving sound from the stethoscope film is arranged in the stethoscope head, and a control circuit is arranged in the stethoscope head and is used for processing electric signals generated from the sensor and transmitting the signals to a speaker arranged in the chest element. The electrostethophone allows stethoscope diagnosis and simple electrocardiogram diagnosis simultaneously.

Description

A kind of electronic stethoscope

Technical field

But this utility model relate to a kind of ears use, multi-functional, and preferably be furnished with the electronic stethoscope of a camber member.

Background technology

Stethoscope is to be used to detect sound phenomenon or the active instrument of auscultation organ.At present but common stethoscope is the hose type stethoscope that ears used and be furnished with camber member, they all have an open bell or by the parts of membrane sealed as the auscultation head.Except the hose type stethoscope of machinery, also available electronic stethoscope on the market.Stethoscopic auscultation head just is meant a kind of auscultation tube that can be placed on by on the auscultation patient body.The auscultation tube links to each other with a chest piece, and two camber members lead to earplug from chest piece.

For the hose type stethoscope, acoustical signal is from the auscultation tube of auscultation object one side, through chest piece and two camber members, be directly transferred to the doctor's of checking ear, and concerning electronic stethoscope, acoustical signal is then received by a mike that is assemblied in the auscultation head, is transformed into the signal of telecommunication, be sent to the microphone of ear one side, and after this place is exaggerated, send.

Except that traditional electronic stethoscope, also have some special purpose models, known because of being used for acoustic-electric monitor aroused in interest.For example, US-A-4840183 discloses a kind of acoustic-electric recording stethoscope aroused in interest of doing.Having introduced another kind in patent US-A-5025809 can be connected with corresponding graphic recording device: make acoustic-electric recording stethoscope aroused in interest.

Concerning as acoustic-electric recording stethoscope aroused in interest, be received and amplify by the caused cardiac murmur of cardiac function, if desired, also available suitable method is noted, electrocardiogram equipment then according to the expansion of following the heart internal stimulus and subdue the biopotential that produces with the instantaneous variation process, figure runs a curve.

The conduction of biopotential can realize by means of the electrode that is installed on the body surface.Express with the data that obtain according to transients and to constitute an electrocardiogram (ECG), it demonstrates different from diagnosing useful parameter.

At last, US-A-5394880 discloses a kind of esophagus stethoscope, and it has a conduit that injects esophagus, and a mike and a several sensors that is used for the audiometry hear sounds is housed in the conduit.The pick off that a take temperature uses and the electrode of two recording ecgs especially also are provided therein.By the received signal of conduit, outwards be sent to a plug through a wire, this plug is set up with corresponding recording equipment and is got in touch.

Traditional electronic stethoscope and known electrocardiograph all are that the general doctor has instrument in daily use, and the esophagus stethoscope then is highly sensitive instrument, and it only is used for clinical.

Summary of the invention

The purpose of this utility model is that to the general doctor provides a kind of multi-function stethoscope of carrying use it allows also to carry out simultaneously simple electrocardiogram test except that auscultation.

According to the technical scheme that this utility model provides, electronic stethoscope comprises an auscultation head, is used to receive and transmits by the sound that is sent in auscultator's body; One sound conductor, the transmission sound that is used for that the auscultation hair is sent is given auscultator's in ear; One connects flexible pipe, be used to connect auscultation head and sound conductor, it is characterized in that: the chest piece that power supply is provided providing for the auscultation head between sound conductor and auscultation head, the audition chamber is set in the auscultation head, there is a unlimited opening in this audition chamber, on this opening, connect the audition film, the inner in this audition chamber is shrunk to horn-like, the pick off be used to receive the sound that the audition film sends is installed in the auscultation head, and control circuit, be used for the signal of telecommunication that pick off sends handled being transferred to the speaker that is installed in the chest piece.

In sound conductor, two sound guide tubes of symmetric arrangement become fork-shaped to link together, and the outer end of every sound guide tube is crooked to the inside, connects the leading note head respectively in the termination of each outer end, at the forked end connection flexible pipe of sound guide tube.

In chest piece, shell is formed by connecting by loam cake and lower cover, be provided with dividing plate in the enclosure, be used for chest piece is separated into space of placing battery and the space of placing speaker, last covering the battery cover of being convenient to place battery is set, the end of this battery cover be provided for on the spring secures rail to sleeper that fastens mutually of the catching groove that covers, voice guide hole is set on dividing plate.The housing of auscultation head is formed by connecting by upper shell and lower house, is provided for installing the support of control circuit board at the inwall of housing, at the junction surface of upper shell and lower house draw-in groove and fastener is set respectively.

On the auscultation head, display is set, is used for the signal after handling through control circuit is shown with digital form.In control circuit, the input of Programmable Logic Controller connects the sound amplifying circuit, the input of the sound amplifying circuit tube of answering, and the outfan of Programmable Logic Controller connects frequency selector, the outfan of frequency selector connects power amplification circuit, at the outfan connection speaker of power amplification circuit; Frequency selector is used to select sound waves of different frequencies, and exports and should give power amplification circuit by selected sound wave, drives speaker by power amplification circuit; The signal that the sound amplifying circuit is used for the microphone input amplifies, and Programmable Logic Controller is used to handle the signal of sound amplifying circuit input, flows to frequency selector again after filtering out invalid signals wherein.Outfan at Programmable Logic Controller also is connected with polychrome frequency range display circuit and frequency-selective switch, and polychrome frequency range display circuit is used for the signal after handling through Programmable Logic Controller is shown with digital form; Frequency-selective switch is used to control frequency selector.

Over nearly 100 years, the traditional stethoscope that is widely known by the people has become the most frequently used diagnostic instruments of doctor, and this is because of its light and handy facility, need not to prepare and can use, and often is with in pocket or on neck, and is not time-consuming during use.Every other instrument all is isolating, great majority or the electronic installation that must take up room and install.

This utility model utilization is greatly improved the definition of sound after gathering the pick off of sound and working the speaker of the effect of amplifying, and simultaneously, also can utilize control circuit to regulate volume, select audio frequency; When auscultation, can select corresponding stethoscope Hz-KHz according to auscultation internal organs sound range, Hz-KHz can be divided into the bass district of 1～60Hz, the intermediate frequency zone of 70～130Hz, the high frequency region of 140～500Hz when the different sound equipment of auscultation, is selected different frequencies; The clinical diagnosis basis accurately that provides is provided, the sound equipment classification auscultation of organ can be improved specific aim simultaneously; The sound source of sensor acquisition reaches the purpose of frequency division auscultation after filtering through the chip analysis in the control circuit; After being provided with display screen on the auscultation head, can in time show heart rate, electrocardio in use; And can store and playback, so that utilize software analysis by computer where necessary.

According to electronic stethoscope of the present utility model, synchronously, perception equally simply, intuitively show and the bioelectric stimulation of the cardiomotility of testing and assessing aspect, enlarged this simple (auscultation) up to now diagnosis probability.Like this, about the important information of irregular, the so-called tachycardia of the rhythm of the heart, ventricle chatter and others, and other often has only the problem that just can learn very late, is just learnt in the medical examination first time.

Also can equip the pick off of measuring blood pressure and/or temperature in addition according to electronic stethoscope of the present utility model.Evaluation unit is installed in the auscultation head equally, and it usually directly is sent to plotting unit with signal.These signals also can be input into data storage, and just are transferred to therefrom on the still image of display device.

Description of drawings

Fig. 1 represents total figure of electronic stethoscope.

Fig. 2 represents the upward view of the auscultation head of same electronic stethoscope.

Fig. 3 is control circuit figure.

The specific embodiment

In following introduction, will describe an embodiment of this utility model object in detail by accompanying drawing.

Electronic stethoscope comprises an auscultation 25, is used to receive and transmits by the sound that is sent in auscultator's body; One sound conductor 28 is used for the in ear of auscultation 25 transmission sound that send out to the auscultator; One connects flexible pipe 8, be used to connect auscultation 25 and sound conductor 28, the chest piece 27 of power supply is provided providing for auscultation 25 sound conductor 28 and auscultation 25, in auscultation 25, audition chamber 3 is set, there is a unlimited opening in this audition chamber 3, on this opening, connect audition film 2, the inner in this audition chamber 3 is shrunk to horn-like, the pick off that is used to receive the sound that audition film 2 sends is installed in auscultation 25, and control circuit 4, be used for the signal of telecommunication that pick off sends handled being transferred to the speaker that is installed in the chest piece 27.During use, auscultation 25 an audition film 2 that are are pressed close to by auscultator's internal organs position, the sound that internal organs send passes to pick off through audition film 2, flow to control circuit by pick off, after the signal that chip in the control circuit transmits pick off is handled, pass to speaker 17 by lead, the sound that speaker 17 sends is passed to the doctor through sound guide tube 19 and leading note head 20, is made accurately according to symptom by the doctor and judging.

In sound conductor 28,19 one-tenth fork-shapeds of two sound guide tubes of symmetric arrangement link together, the outer end of every sound guide tube 19 is crooked to the inside, termination in each outer end connects leading note head 20 respectively, so that form the shape that a suitable doctor wears with oneself, forked end at sound guide tube 19 connects flexible pipe 8, utilizes flexible pipe 8 to be connected with chest piece 27.

In chest piece 27, shell is formed by connecting by loam cake 10 and lower cover 12, be provided with dividing plate 15 in the enclosure, so that chest piece 27 is separated into space of placing battery and the space of placing speaker 17, the battery cover 11 of being convenient to place battery is set on loam cake 10, the end of this battery cover 11 be provided for loam cake 11 on the spring secures rail to sleeper 13 that fastens mutually of catching groove, the voice guide hole 14 of being convenient to wear lead is set on dividing plate 15.

The housing of auscultation 25 is formed by connecting by upper shell 1 and lower house 18, is provided for installing the support 5 of control circuit board 4 at the inwall of housing, at the junction surface of upper shell 1 and lower house 18 draw-in groove 7 and fastener 6 is set respectively.

In auscultation 25 display is set, the signal after being used for handling through control circuit shows with digital form.

In control circuit, the input of Programmable Logic Controller connects the sound amplifying circuit, the input of the sound amplifying circuit tube of answering, and the outfan of Programmable Logic Controller connects frequency selector, the outfan of frequency selector connects power amplification circuit, at the outfan connection speaker of power amplification circuit; Frequency selector is used to select sound waves of different frequencies, and exports and should give power amplification circuit by selected sound wave, drives speaker by power amplification circuit; The signal that the sound amplifying circuit is used for the microphone input amplifies, and Programmable Logic Controller is used to handle the signal of sound amplifying circuit input, flows to frequency selector again after filtering out invalid signals wherein.

Outfan at Programmable Logic Controller also is connected with polychrome frequency range display circuit and frequency-selective switch, and polychrome frequency range display circuit is used for the signal after handling through Programmable Logic Controller is shown with digital form; Frequency-selective switch is used to control frequency selector.Above-mentioned control circuit 4 can have been bought on market.Their program must be optimized in use.

Corresponding electronics device consists essentially of a digital to analog converter, amplifier, the beat timer that Measuring Time is used and preferably can be wherein and can access the memory element that in display device, shows with the temporary transient storage of measurement result, correspondingly the electrocardiogram image of a width of cloth static state just can go on record, in order to diagnose, it can at length be studied.

Claims (5)

1. electronic stethoscope comprises an auscultation head (25), is used to receive and transmits by the sound that is sent in auscultator's body; One sound conductor (28), the transmission sound that is used for that auscultation head (25) is sent out is given auscultator's in ear; One connects flexible pipe (8), be used to connect auscultation head (25) and sound conductor (28), it is characterized in that: the chest piece (27) that between sound conductor (28) and auscultation head (25), is provided for providing power supply for auscultation head (25), audition chamber (3) is set in auscultation head (25), there is a unlimited opening in this audition chamber (3), connect audition film (2) on this opening, the inner in this audition chamber (3) is shrunk to horn-like; The pick off be used to receive the sound that audition film (2) sends is installed in auscultation head (25).

2. electronic stethoscope as claimed in claim 1, it is characterized in that: in sound conductor (28), two sound guide tubes (19) of symmetric arrangement become fork-shaped to link together, the outer end of every sound guide tube (19) is crooked to the inside, connect leading note head (20) respectively in the termination of each outer end, at the forked end connection flexible pipe (8) of sound guide tube (19).

3. electronic stethoscope as claimed in claim 1, it is characterized in that: in chest piece (27), shell is formed by connecting by loam cake (10) and lower cover (12), be provided with dividing plate (15) in the enclosure, be used for chest piece (27) is separated into space of placing battery and the space of placing speaker (17), go up the battery cover (11) that setting is convenient to place battery at loam cake (10), the end of this battery cover (11) be provided for loam cake (11) on the spring secures rail to sleeper (13) that fastens mutually of catching groove, voice guide hole (14) is set on dividing plate (15).

4. electronic stethoscope as claimed in claim 1, it is characterized in that: the housing of auscultation head (25) is formed by connecting by upper shell (1) and lower house (18), be provided for installing the support (5) of control circuit board at the inwall of housing, draw-in groove (7) and fastener (6) be set respectively at the junction surface of upper shell (1) and lower house (18).

5. electronic stethoscope as claimed in claim 1 is characterized in that: on auscultation head (25) display is set.

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