CN2657587Y

CN2657587Y - Electronic stethscopic for fetal heart sound

Info

Publication number: CN2657587Y
Application number: CN 200320102630
Authority: CN
Inventors: 蔡世贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-03
Filing date: 2003-11-03
Publication date: 2004-11-24
Anticipated expiration: 2013-11-03

Abstract

The utility model relates to an electronic audition device for embryo sound. An inner-lateral ring of the surrounding edge of a stethoscope is provided with a circular convex edge which protrudes from the surrounding-edge plane of the stethoscope entity. A micro speaker arranged in the stethoscope entity picks up the detected embryo sound which is exported for the on-site diagnosis through a loudspeaker after the noise elimination by an audio frequency treatment circuit. The simulated embryo sound can also be recorded and stored through a recording interface. Or the simulated sound signals are converted into digital signals by a simulation/digital converter and are then recorded in a micro processor. The correspondent images can be displayed by an output displayer under the control of the micro processor or be stored in a memorizer. The utility model can not only converts the embryo information into digital signals for reference and storage, but can also transfer the digital signals to the far end where the digital signals are converted into the simulated sound signals again by a digital virgule simulation converter. Then the sound signals are amplified by an amplifier and are exported by a loudspeaker for far-distance auscultations or diagnosis.

Description

Electronic type tire sound hearing prosthesis

Technical field

This utility model is meant a kind of unnecessary noise that filters especially relevant for a kind of electronic type tire sound hearing prosthesis, promotes the accuracy of diagnosis, and the tire sound can be reached the stethoscope structure of being convenient to the data transmission, preserving via digital translation.

Background technology

General existing stethoscope, it is to be an ostiolate hollow container, in this opening, can be embedded the inner cap of a shallow disc shape, establish a resonating membrane in this inner cap top, make this resonating membrane can slightly protrude in stethoscope opening and smooth tight in conjunction with the inner cap periphery, the cambered surface top side of inner cap then is provided with a hollow out, be communicated with formation in the stethoscope so that resonating membrane is inner, and the conduit that this stethoscope also can seal is connected the pure man ear; During use, be affixed on the detecting position with this resonating membrane, utilize sound wave to make this resonating membrane produce vibration, again by the air in this resonating membrane vibratory auscultation device, via conduit stethoscopic air vibration situation is reached people's ear and vibrates tympanum, use the effect that produces the simulation source of sound.

Yet above-mentioned stethoscope structure has following shortcoming on using:

Owing to stethoscopic resonating membrane periphery is that direct opisthotonos is fitted in the inner cap periphery, but easily produce wrinkle, distortion, cause this resonating membrane can't keep smooth and applying closely, often lose real childbirth for the reaction of source of sound vibration and give birth in this opisthotonos position.

Though general stethoscope can also be subject to the interference of environmental noise, and over-drastic environmental noise can increase the degree of difficulty of diagnosis and reduce accuracy in the sound of actual response source of sound to a certain extent.

Though the analoging sound signal that picked up of tradition stethoscope can be preserved via recording, but this analoging sound signal can't be by digital implementation as the application of analyzing, judging, and only can do basic comparison with human auditory system, lacks scientific basis.

Summary of the invention

This utility model aims to provide a kind of electronic type tire sound hearing prosthesis, it mainly is to tidy up the tire tone signal of being detected in the stethoscope body with a mike, via an audio frequency processing circuit filter out noise and after being amplified, convert mimic acoustical signal to digital signal with an analog/digital converter and input to microprocessor, can select control by display device output coherent video or with memory storage by this microprocessor, it not only can store reference with digital signal with tire sound data, also can be with this digital data transmission to far-end, convert digital signal to mimic acoustical signal by a digital/analog converter again, after an amplifier suitably amplifies, by loudspeaker output tire sound, so that the long distance auscultation or the consultation of doctors, this is a main purpose of the present utility model.

For achieving the above object, this utility model provides a kind of electronic type tire sound hearing prosthesis, and it comprises at least:

One stethoscope body, be an ostiolate hollow container, in this opening, can be embedded the inner cap of a shallow disc shape, in this, cover and to cover a resonating membrane, make and form a receiving chamber between this resonating membrane and inner cap, be affixed on the detecting position with this resonating membrane, utilize sound wave to make this resonating membrane produce vibration, again by the air in this resonating membrane vibratory auscultation device;

One mike is fixed in the inner cap inside of aforementioned stethoscope body, picking up the frequency of vibration of resonating membrane, and with signal conductor coherent signal is outwards carried;

One audio frequency processing circuit, the signal of reception aforementioned microphone is amplified output behind the filtering high frequency noise;

One analog/digital converter, the analog signal conversion that aforementioned audio frequency processing circuit is exported is a digital signal;

One microprocessor, receive the digital signal after aforementioned analog/digital converter is changed, select to carry out difference in functionality or operating type, this this digital signal can be manifested via a display device via a key control circuit, or, also can outwards transfer to far-end with memory storage;

One digital/analog converter receives the digital signal that aforementioned microprocessor transmits in far-end, and this digital signal is converted to the corresponding simulating signal, after an amplifier amplifies this analogue signal, can produce this tire sound by loudspeaker.

The prominent ring flange of establishing of cover gab inner edge in wherein being somebody's turn to do, and make this ring flange slightly protrude from the opening periphery of inner cap, utilize supporting to arrive in of this ring flange, can make the resonating membrane periphery earlier after the bending of a wide-angle, form low-angle opisthotonos in the inner cap periphery again, make this resonating membrane in the scope of receiving chamber, can keep smooth, tight state, avoid twisting, being out of shape the distortion situation that causes resonance bad.

This kind electronic type tire sound hearing prosthesis of the present utility model, because stethoscope body periphery inboard is equipped with a ring flange, utilize supporting to arrive in of this ring flange, it is more smooth, tight that this resonating membrane is able to, and produces relative vibration with more loyal reaction environment sound equipment.

This kind electronic type tire sound hearing prosthesis of the present utility model, its tire sound is after audio frequency processing circuit is handled, can directly be convenient to on-the-spot auscultation, also can directly should mimic tire tone signal recording store, to promote the convenience that it is used through a recording interface with a loudspeaker output sound.

Description of drawings

Fig. 1 is the section plan of this utility model stethoscope body.

Fig. 2 is an overall structure block chart of the present utility model.

The reference of element shown count:

1..... utmost point amplifier behind the stethoscope body 33....

11.... inner cap 34,71.... loudspeaker

The interface 111... the 35.... of receiving chamber records

112... ring flange 4..... analog/digital converter

12.... resonating membrane 5..... microprocessor

13.... sound insulation packing ring 51.... key control circuit

2..... mike 52.... display device

21.... signal conductor 53.... memorizer

3..... audio frequency processing circuit 6..... digital/analog converter

31.... head amplifier 7..... amplifier

32.... low pass filter

The specific embodiment

Fig. 1 is the section plan of this utility model stethoscope body, by its overall structure block chart with reference to Fig. 2, can clearly find out, this utility model mainly comprises: stethoscope body 1, mike 2, audio frequency processing circuit 3, simulation/digital converter 4, microprocessor 5, digital/analog converter 6 and amplifier 7 etc. are partly, wherein this stethoscope body 1 is to be an ostiolate hollow container, in this opening, can be embedded the inner cap 11 of a shallow disc shape, in the prominent ring flange 112 of establishing of these inner cap 11 opening inner edges, and make this ring flange 112 slightly protrude from the opening periphery of inner cap 11, on this ring flange 112, can cover a resonating membrane 12, make 11 of this resonating membrane 12 and inner caps form a receiving chamber 111, and utilize supporting to arrive in of this ring flange 112, make resonating membrane 12 peripheries earlier after the bending of a wide-angle, form low-angle opisthotonos in inner cap 11 peripheries again, make this resonating membrane 12 in the scope of receiving chamber 111, can keep smooth, tight state, avoid distortion, distortion causes the bad distortion situation of resonance, and completely cut off unnecessary noise between above-mentioned stethoscope body 1 and the inner cap 11 and with a sound insulation packing ring 13, the cambered surface top side of this inner cap then is provided with a hollow out again, can be embedded for mike 2 and be fixed in it (as shown in Figure 1), during use, be affixed on the detecting position with this resonating membrane, utilize sound wave to make this resonating membrane produce vibration, again by the air in this resonating membrane vibratory auscultation device, can pick up the frequency of vibration of resonating membrane 12 by this mike 2, and coherent signal is delivered to audio frequency processing circuit 3 with signal conductor 21, comprise in this audio frequency processing circuit 3: pre-amplifier 31, low pass filter 32, post-amplifier 33 elements such as grade, utilize this pre-amplifier 31 that the signal of mike 2 outputs is tentatively amplified, low pass filter 32 then can be with the high-frequency sound filtering signals (because tire phonetic system belongs to low-frequency sound, filter high-frequency sound, can highlight the low frequency signal of tire sound), through a post-amplifier 33 signal is suitably amplified again, this simulation amplifying signal can directly be converted into digital signal with an analog/digital converter 4, or in order to direct promotion loudspeaker 34 generation sound equipment outputs, more can be stored via a recording interface 35, but by the digital signal of analog/digital converter 4 conversion input microprocessor 5 then, this microprocessor 5 can select to carry out difference in functionality or operating type via a key control circuit 51, this microprocessor 5 can be showed this digital signal with display device 52, or with memorizer 53 storages, also can be via wired, be wirelessly transmitted to the digital/analog converter 6 of far-end, by this digital/analog converter 6 this digital signal is converted to the corresponding simulating signal, behind an amplifier 7 amplifying signals, produces this tire sound by loudspeaker 71.

According to above-mentioned structure of the present utility model, it can be directly existing with voice mode with the analogue signal of back utmost point amplifier 33 outputs via loudspeaker 34, and directly store this analogue signal with recording interface 35; Can be digital signal with analog signal conversion also via analog/digital converter 4, after microprocessor 5 application processing, other shows in the image mode with display device 52 or stores these digital signals with memorizer 53, and it can be selected in response to different demands with different display forms; Moreover the digital signal after this conversion also can transfer to far-end via variety of way, so that the carrying out of the long distance auscultation or the consultation of doctors.

Only the above only is a preferred embodiment of the present utility model, is not to be used for limiting the scope that this utility model is implemented.Be that all equalizations of doing according to this utility model change and modification, be all this utility model claim and contain.

Claims

1. electronic type tire sound hearing prosthesis is characterized in that comprising at least:

2. electronic type tire sound hearing prosthesis as claimed in claim 1, it is characterized in that: the prominent ring flange of establishing of cover gab inner edge in wherein being somebody's turn to do, and make this ring flange slightly protrude from the opening periphery of inner cap, utilize supporting to arrive in of this ring flange, can make the resonating membrane periphery earlier after the bending of a wide-angle, form low-angle opisthotonos in the inner cap periphery again, make this resonating membrane in the scope of receiving chamber, can keep smooth, tight state, avoid twisting, being out of shape the distortion situation that causes resonance bad.

3. electronic type tire sound hearing prosthesis as claimed in claim 2 is characterized in that: wherein can the isolated unnecessary noise of a sound insulation packing ring between stethoscope body and the inner cap.

4. as claim 1 or 2 or 3 described electronic type tire sound hearing prosthesis, it is characterized in that: wherein this audio frequency processing circuit comprises: pre-amplifier, low pass filter, post-amplifier, this pre-amplifier can tentatively amplify the signal of mike output, low pass filter then can be with the high-frequency sound filtering signals, to highlight the low frequency signal of tire sound, then the level amplifier then can further suitably amplify signal.

5. as claim 1 or 2 or 3 described electronic type tire sound hearing prosthesis, it is characterized in that: wherein the analogue signal of audio frequency processing circuit output can directly promote loudspeaker and produce sound equipment output.

6. electronic type tire sound hearing prosthesis as claimed in claim 4 is characterized in that: wherein the analogue signal of audio frequency processing circuit output can directly promote loudspeaker and produce sound equipment output.

7. as claim 1 or 2 or 3 described electronic type tire sound hearing prosthesis, it is characterized in that: wherein the analogue signal of audio frequency processing circuit output can be stored via a recording interface.

8. electronic type tire sound hearing prosthesis as claimed in claim 4 is characterized in that: wherein the analogue signal of audio frequency processing circuit output can be stored via a recording interface.

9. as claim 1 or 2 or 3 described electronic type tire sound hearing prosthesis, it is characterized in that: it is to transfer to far-end in wired mode.

10. as claim 1 or 2 or 3 described electronic type tire sound hearing prosthesis, it is characterized in that: it is to transfer to far-end with wireless mode.