CN104274202A - Electronic stethoscope and electronic stethoscopy system - Google Patents

Electronic stethoscope and electronic stethoscopy system Download PDF

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Publication number
CN104274202A
CN104274202A CN201310287303.1A CN201310287303A CN104274202A CN 104274202 A CN104274202 A CN 104274202A CN 201310287303 A CN201310287303 A CN 201310287303A CN 104274202 A CN104274202 A CN 104274202A
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CN
China
Prior art keywords
circuit
electronic
described
electronic stethoscope
signal
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CN201310287303.1A
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Chinese (zh)
Inventor
晁彦公
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晁彦公
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Priority to CN201310287303.1A priority Critical patent/CN104274202A/en
Publication of CN104274202A publication Critical patent/CN104274202A/en

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Abstract

The invention relates to the field of medical instruments, in particular to an electronic stethoscope and an electronic stethoscopy system. The electronic stethoscope comprises an electronic sensor, a microcontroller unit (MCU), a signal selection circuit, a Bluetooth circuit, a display circuit, a storage circuit, a signal processing circuit and a power supply system. The signal selection circuit selects different stethoscopy frequencies through keys, signals are acquired through the electronic sensor, the acquired signals are transmitted to the signal processing circuit, and digital signals obtained after processing are transmitted to the MCU. The Bluetooth circuit, the display circuit, the storage circuit and the power supply system are connected with the MCU, and the Bluetooth circuit is further connected with a plurality of Bluetooth headsets, so that the multi-user stethoscopy function is achieved. The electronic stethoscope is combined with a local PC and a remote PC, has a wide stethoscopy range, a high signal processing capacity and the functions of user-friendly stethoscopy, recording and playback, intelligent stethoscopy, remote consultation and the like, and can be integrated in other medical software systems.

Description

A kind of electronic stethoscope and electronic auscultation system

Technical field

The present invention relates to medical instruments field, particularly relate to a kind of electronic stethoscope and electronic auscultation system.

Background technology

Auscultation is the sound sent according to parts of body, the whether normal a kind of diagnostic method of body part is judged with audition, no matter be acoustic stethoscope, or digital stethoscope, major function is all the auxiliary diagnostic tool as the position such as heart and pulmonary, diagnose by listening attentively to acoustical signal, the use of acoustic stethoscope has had the history of about 200 years, and electronic digit stethoscope is then recent development novel device out.

At present, existing electronic digit stethoscope is mainly divided into: ordinary electronic stethoscope, band display electronic stethoscope, the electronic stethoscope three major types be connected with computer by bluetooth or data wire, this three classes stethoscope all has existence in the market.

After namely the analogue signal collected is converted to digital signal by AD conversion by ordinary electronic stethoscope, carry out information processing, by reducing noise jamming to the analyzing and processing of digital signal, improve the accuracy of auscultation, but common stethoscope is general without storing or Presentation Function.

Electronic stethoscope with Presentation Function is perfect to common stethoscope function, at present, pass through display screen, doctor intuitively can arrive corresponding data value even oscillogram, this contributes to the diagnosis of doctor, but because data cannot be preserved, cause the auscultated results of patient or waveform to reproduce, be unfavorable for expert, doctor does further judgement to patient's state of an illness.

A class stethoscope has incorporated comparatively advanced technology in addition, the connection of stethoscope and PC can be realized, can data be saved on PC, thus again can check the relevant medical information of patient, but this still cannot to accomplish in this locality the multiple doctor same patient of auscultation and carry out auscultation to patient by long-range mode simultaneously.

In sum, also there is certain problem in the following aspects in current electronic stethoscope.1, auscultation scope: current existing electronic stethoscope auscultation scope is narrower, such as: the stethoscope for stethoscope heart sound and respiratory murmur is not suitable for auscultation tire sound or blood vessel sound, traditional electronic stethoscope is in order to the different content of auscultation, may need change probe or even change different stethoscopes, this will cause auscultation process comparatively loaded down with trivial details, and diagnosis efficiency is lower; 2, many people auscultation: existing electronic stethoscope generally can only support that a doctor carries out auscultation, be immediately the stethoscope that can be connected with computer to realize many people simultaneously auscultation patient be also quite inconvenience; 3, remote medical consultation with specialists: existing electronic stethoscope does not support remote medical consultation with specialists, even if by connecting local PC, can utilize local PC to be connected on long-range PC, also cannot support undertaken holding a consultation by video and can realize the real-time auscultation to patient; 4, data store and transmission: existing electronic stethoscope does not support storage and the inquiry of SD card usually, storage and query function that PC could realize patient data must be connected to, if preserved or data query, must keep being connected with specific PC, therefore, its operation strategies is restricted, and normally utilizes bluetooth to be connected with the connected mode of PC simultaneously, this has higher requirements to being connected PC, and connected mode can not realize variation; 5, hommization and intelligent: need during existing electronic stethoscope auscultation to pop one's head in or electronic sensor contacts with patient skin, embarrassment when this may cause patient to go to a doctor, direct and contact skin also may cause the infection of dermatosis simultaneously, which class disease existing stethoscope also cannot may belong to according to sound automatic decision patient simultaneously, and intelligence degree is lower; 6, the system integration: the upper computer software that existing electronic stethoscope is supported is normally for the specific software of this equipment development, poor with the compatibility of other software systems.

Summary of the invention

The object of the invention is to propose a kind of realize auscultation scope wide, support the electronic stethoscope of many people auscultation and realize the electronic auscultation system of remote medical consultation with specialists.

For reaching this object, the present invention by the following technical solutions:

A kind of electronic stethoscope, comprise electronic sensor, microcontroller, signal selecting circuit, Bluetooth circuit, display circuit, memory circuit, signal processing circuit and electric power system, described signal selecting circuit selects different auscultation frequency utilization electronic sensors to gather signal by button, and send the signal collected to signal processing circuit, the digital signal obtained after process sends microcontroller to again, described Bluetooth circuit, display circuit, memory circuit and electric power system are connected with microcontroller respectively, described Bluetooth circuit is also connected with multiple bluetooth earphone, achieve local many people auscultation simultaneously.

Wherein, signal processing circuit is divided into three parts: signal de-noising, A/D conversion, DA conversion, described signal de-noising relies on different band filters to realize, A/D conversion refers to that the signal after by noise reduction is converted to digital signal after preamplifier amplifies, D/A conversion refers to and digital signal is converted to analogue signal, and described electronic stethoscope also comprises traditional double ear piece.

Wherein, microcontroller comprises data preliminary analysis circuit, electric power management circuit, equipment control circuit, warning and acknowledge circuit, described data preliminary analysis circuit refers to and carries out analyzing and processing to digital signal, thus tentatively judges detected value representated by described digital signal whether over range.

Wherein, warning and acknowledge circuit have two kinds of functions: one is that detected value over range is reported to the police, and two is the Warning alarms of equipment own.

Wherein, electric power management circuit is used for power supply selection and the battery charging of electronic stethoscope.

Wherein, electronic sensor adopts piezoceramic transducer, utilizes piezoelectric ceramics acoustic principle, realizes every clothing auscultation.

A kind of electronic auscultation system, comprise any one electronic stethoscope described above, also comprise local PC and long-range PC, described electronic stethoscope realizes data communication by bluetooth, audio interface, USB interface or SD card and local PC, described local PC is connected with long-range PC by network, realize remote medical consultation with specialists, remote medical consultation with specialists can be monitored the acoustic information of patient, utilize Internet video, the real-time condition of patient can also be seen, held a consultation by Internet video, reach the effect of real-time auscultation.

Wherein, be provided with expert knowledge library in local PC, in the signal transmitted by electronic stethoscope and described expert knowledge library, waveform correlation and data contrast, and determine the type that patient suffers from the disease, and provide diagnosis prompting, achieve intelligent auscultation.

Wherein, electronic stethoscope has inquiry and the function of looking back, and described local PC has inquiry and the function of looking back.

Wherein, electronic auscultation system supports host computer medical software, has the function with other medical software system integrations.

Beneficial effect of the present invention is: a kind of electronic stethoscope, comprise electronic sensor, microcontroller, signal selecting circuit, Bluetooth circuit, display circuit, memory circuit, signal processing circuit and electric power system, described signal selecting circuit selects different auscultation frequency utilization electronic sensors to gather signal by button, and send the signal collected to signal processing circuit, the digital signal obtained after process sends microcontroller to again, described Bluetooth circuit, display circuit, memory circuit and electric power system are connected with microcontroller respectively, described Bluetooth circuit is also connected with multiple bluetooth earphone, to realize many people auscultation function, this electronic stethoscope is combined with local PC and long-range PC, there is auscultation scope wide, hommization auscultation, signal handling capacity is strong, support recording and playback, function such as intelligence auscultation and remote medical consultation with specialists etc., and can be integrated in other medical software systems.

Accompanying drawing explanation

Fig. 1 is electronic stethoscope schematic diagram of the present invention;

Fig. 2 is electronic auscultation system construction drawing of the present invention;

Fig. 3 is electronic auscultation system integration structural representation of the present invention.

Detailed description of the invention

Technical scheme of the present invention is further illustrated by specifically implementing structure below in conjunction with Fig. 1-Fig. 3.

As shown in Figure 1, a kind of electronic stethoscope, comprise electronic sensor, microcontroller, signal selecting circuit, Bluetooth circuit, display circuit, memory circuit, signal processing circuit and electric power system, described signal selecting circuit selects different auscultation frequency utilization electronic sensors to gather signal by button, and send the signal collected to signal processing circuit, the digital signal obtained after process sends microcontroller to again, described Bluetooth circuit, display circuit, memory circuit and electric power system are connected with microcontroller respectively, described Bluetooth circuit is also connected with multiple bluetooth earphone, achieve local many people auscultation simultaneously.

In the present embodiment, this electronic stethoscope is imedcare electronic stethoscope, can stethoscope heart sound, respiratory murmur, blood vessel sound, tire sound etc., and auscultation complete function, meets actual medical demand; Improve information gathering precision by button select different auscultation frequencies to be effectively separated sound that different body part sends, the auscultated sound that different frequencies is corresponding different, such as: hear sounds frequency acquisition is 20 ~ 600Hz, respiratory murmur frequency acquisition is 50 ~ 1200Hz, simultaneously, for different frequency acquisitions, different band filters is set, different frequency is utilized to isolate the auscultation of different parts, the interference at other positions in effective reduction auscultation, thus effectively realize the object of noise reduction.

In the present embodiment, this electronic stethoscope also comprises SD card memory circuit, and this memory circuit and button coordinate can realize inquiry and review function; This electronic stethoscope also comprises USB interface, audio interface, and the two and Bluetooth circuit and memory circuit all can be used for being connected with computer; This electronic stethoscope also comprises display lamp and LED display circuit, some simple measurement results can be presented on LED display, or some warnings and caution signals is shown by display lamp.

In the present embodiment, signal processing circuit is divided into three parts: signal de-noising, A/D conversion, DA conversion, described signal de-noising relies on different band filters to realize, A/D conversion refers to that the signal after by noise reduction is converted to digital signal after preamplifier amplifies, D/A conversion refers to and digital signal is converted to analogue signal, and described electronic stethoscope also comprises traditional double ear piece; Signal through processing can directly be passed the signal along in multiple bluetooth earphone by Bluetooth circuit, thus realize local many people auscultation simultaneously, simultaneously, after utilizing D/A to change, diagnostician also can be selected directly to wear traditional double ear piece and carry out auscultation, all the other auscultations doctor utilizes bluetooth earphone to be connected to electronic stethoscope simultaneously, thus realizes many people auscultation.

In the present embodiment, microcontroller comprises data preliminary analysis circuit, electric power management circuit, equipment control circuit, warning and acknowledge circuit, described data preliminary analysis circuit refers to and carries out analyzing and processing to digital signal, thus tentatively judge detected value representated by described digital signal whether over range, and sound a warning according to testing result or report to the police.

In the present embodiment, warning and acknowledge circuit have two kinds of functions: one is that detected value over range is reported to the police, and two is the Warning alarms of equipment own; The Warning alarm of equipment own comprises following situation: lead-fail detector or sensor contacts is bad, electricity is low, SD card stores the situations such as full.

In the present embodiment, electric power management circuit is used for power supply selection and the battery charging of electronic stethoscope; Electronic stethoscope is adopted and is powered in two ways: USB powers and lithium battery power supply.

In the present embodiment, electronic sensor adopts piezoceramic transducer, utilizes piezoelectric ceramics acoustic principle, realizes every clothing auscultation, to avoid the inconvenience of patient in going to a doctor, also prevents the propagation of dermatosis simultaneously.

A kind of electronic auscultation system, comprise any one electronic stethoscope described above, also comprise local PC and long-range PC, described electronic stethoscope realizes data communication by bluetooth, audio interface, USB interface or SD card and local PC, described local PC is connected with long-range PC by network, realize remote medical consultation with specialists, remote medical consultation with specialists can be monitored the acoustic information of patient such as hear sounds, lungs sound etc., utilize Internet video, the real-time condition of patient can also be seen, held a consultation by Internet video, reach the effect of real-time auscultation.

In the present embodiment, electronic stethoscope and local PC can select any one connected mode wherein as required, local PC can utilize the data received to carry out waveform display and by local PC auscultation, also can be integrated in the diagnosis and therapy system that in existing medical software system, formation one is complete; Moreover, connected by network, auscultation data can also be transferred to long-range PC, utilize the mode of Internet video, realize remote medical consultation with specialists, remote port doctor can real-time implementation video consultation, directly utilizes earphone to listen to patient information, and local PC and the equal supported data of long-range PC store and inquiry review function.

What export due to equipment be the audio-frequency information of standard, therefore can play-over the while that device carrying out broadcasting and can also be integrated in medical software system, form an intelligent medical system.Remote doctor can utilize the mode of video consultation directly and patient's video and listen to the information such as patient's hear sounds, respiratory murmur.

In the present embodiment, expert knowledge library is provided with in local PC, in the signal transmitted by electronic stethoscope and described expert knowledge library, waveform correlation and data contrast, determine the type that patient suffers from the disease, provide diagnosis prompting, diagnosis and treatment suggestion and kinds of Diseases directly show on local PC, and kinds of Diseases can directly show on electronic stethoscope, reach the function of intelligent auscultation.

In the present embodiment, electronic stethoscope has inquiry and the function of looking back, and described local PC has inquiry and the function of looking back.

The memory circuit of this electronic stethoscope comprises the storage of SD card this locality and stores with computer remote, and no matter this locality stores or the data of remote storage, and the inquiry that all can be used for information is looked back; The support of this electronic stethoscope is connected and wireless connections with computer USB data wire, and the radiating circuit of wireless connections can be one wherein in bluetooth, 802.11b/g, 2.4GHz Wireless monolithic transceiving chip nRF2401.

In the present embodiment, electronic auscultation system supports host computer medical software, and have the function with other medical software system integrations, its application structure figure as shown in Figure 3.

The foregoing is only the specific embodiment of the present invention, these describe just in order to explain principle of the present invention, and can not with any interpretation of structure for limiting the scope of the invention.Based on explanation herein, those skilled in the art does not need to pay performing creative labour and can associate of the present invention other and specifically implement structure, and these structures all will fall within protection scope of the present invention.

Claims (10)

1. an electronic stethoscope, it is characterized in that, comprise electronic sensor, microcontroller, signal selecting circuit, Bluetooth circuit, display circuit, memory circuit, signal processing circuit and electric power system, described signal selecting circuit selects different auscultation frequency utilization electronic sensors to gather signal by button, and send the signal collected to signal processing circuit, the digital signal obtained after process sends microcontroller to again, described Bluetooth circuit, display circuit, memory circuit and electric power system are connected with microcontroller respectively, described Bluetooth circuit is also connected with multiple bluetooth earphone, achieve local many people auscultation simultaneously.
2. a kind of electronic stethoscope according to claim 1, it is characterized in that, described signal processing circuit is divided into three parts: signal de-noising, A/D conversion, DA conversion, described signal de-noising relies on different band filters to realize, A/D conversion refers to that the signal after by noise reduction is converted to digital signal after preamplifier amplifies, D/A conversion refers to and digital signal is converted to analogue signal, and described electronic stethoscope also comprises traditional double ear piece.
3. a kind of electronic stethoscope according to claim 1, it is characterized in that, described microcontroller comprises data preliminary analysis circuit, electric power management circuit, equipment control circuit, warning and acknowledge circuit, described data preliminary analysis circuit refers to and carries out analyzing and processing to digital signal, thus tentatively judges detected value representated by described digital signal whether over range.
4. a kind of electronic stethoscope according to claim 3, is characterized in that, described warning and acknowledge circuit have two kinds of functions: one is that detected value over range is reported to the police, and two is the Warning alarms of equipment own.
5. a kind of electronic stethoscope according to claim 3, is characterized in that, the power supply that described electric power management circuit is used for electronic stethoscope is selected and battery charging.
6. a kind of electronic stethoscope according to claim 1, is characterized in that, described electronic sensor adopts piezoceramic transducer, utilizes piezoelectric ceramics acoustic principle, realizes every clothing auscultation.
7. an electronic auscultation system, comprise any one electronic stethoscope described in claim 1-6, it is characterized in that, also comprise local PC and long-range PC, described electronic stethoscope realizes data communication by bluetooth, audio interface, USB interface or SD card and local PC, and described local PC is connected with long-range PC by network, realize remote medical consultation with specialists, remote medical consultation with specialists can be monitored the acoustic information of patient, utilizes Internet video, can also see the real-time condition of patient.
8. a kind of electronic auscultation system according to claim 7, it is characterized in that, expert knowledge library is provided with in described local PC, in the signal transmitted by electronic stethoscope and described expert knowledge library, waveform correlation and data contrast, determine the type that patient suffers from the disease, provide diagnosis prompting, achieve intelligent auscultation.
9. a kind of electronic auscultation system according to claim 7, is characterized in that, described electronic stethoscope has inquiry and the function of looking back, and described local PC has inquiry and the function of looking back.
10. a kind of electronic auscultation system according to claim 7, is characterized in that, supports host computer medical software, has the function with other medical software system integrations.
CN201310287303.1A 2013-07-10 2013-07-10 Electronic stethoscope and electronic stethoscopy system CN104274202A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105286910A (en) * 2015-11-27 2016-02-03 山东中弘信息科技有限公司 Intelligent stethoscope
CN105342598A (en) * 2015-09-30 2016-02-24 付臣 Cardiologic conventional electronic detection apparatus
CN105455842A (en) * 2015-12-24 2016-04-06 香港一方智能医疗科技有限公司 Intelligent auscultation system
CN105748099A (en) * 2016-04-14 2016-07-13 江苏物联网研究发展中心 Android-based intelligent electronic auscultation system
CN105943080A (en) * 2016-06-30 2016-09-21 上海拓萧智能科技有限公司 Intelligent stethophone
CN106037790A (en) * 2016-05-31 2016-10-26 成都天奥电子股份有限公司 Wireless auscultation device
CN106361368A (en) * 2016-09-30 2017-02-01 广西大学 Portable electronic stethoscope
CN106388854A (en) * 2016-11-18 2017-02-15 广西大学 Electronic auscultation system
CN107550515A (en) * 2017-09-15 2018-01-09 中国科学院微电子研究所 Stethoscope system
CN107913081A (en) * 2016-10-08 2018-04-17 河南省金拐杖医疗科技有限公司 A kind of novel and multifunctional electronic auscultation device

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CN1488319A (en) * 2002-10-08 2004-04-14 合世股份有限公司 Multifunctional electronic stethoscope
US20110087135A1 (en) * 2009-10-09 2011-04-14 Ferzli George S Stethoscope, stethoscope attachment and collected data analysis method and system
CN201806723U (en) * 2010-09-09 2011-04-27 深圳市安保科技有限公司 Multifunctional bluetooth wireless stethoscope
US20120190303A1 (en) * 2011-01-21 2012-07-26 Catherine Wong Cell-phone compatible wireless stethoscope
CN202665568U (en) * 2012-07-11 2013-01-16 史熠 Remote electronic stethoscope

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1488319A (en) * 2002-10-08 2004-04-14 合世股份有限公司 Multifunctional electronic stethoscope
CN1443514A (en) * 2003-04-22 2003-09-24 华中科技大学 Remote auscullation method based on Internet and its equipment
US20110087135A1 (en) * 2009-10-09 2011-04-14 Ferzli George S Stethoscope, stethoscope attachment and collected data analysis method and system
CN201806723U (en) * 2010-09-09 2011-04-27 深圳市安保科技有限公司 Multifunctional bluetooth wireless stethoscope
US20120190303A1 (en) * 2011-01-21 2012-07-26 Catherine Wong Cell-phone compatible wireless stethoscope
CN202665568U (en) * 2012-07-11 2013-01-16 史熠 Remote electronic stethoscope

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105342598A (en) * 2015-09-30 2016-02-24 付臣 Cardiologic conventional electronic detection apparatus
CN105286910A (en) * 2015-11-27 2016-02-03 山东中弘信息科技有限公司 Intelligent stethoscope
CN105455842A (en) * 2015-12-24 2016-04-06 香港一方智能医疗科技有限公司 Intelligent auscultation system
CN105748099A (en) * 2016-04-14 2016-07-13 江苏物联网研究发展中心 Android-based intelligent electronic auscultation system
CN106037790A (en) * 2016-05-31 2016-10-26 成都天奥电子股份有限公司 Wireless auscultation device
CN105943080A (en) * 2016-06-30 2016-09-21 上海拓萧智能科技有限公司 Intelligent stethophone
CN106361368A (en) * 2016-09-30 2017-02-01 广西大学 Portable electronic stethoscope
CN107913081A (en) * 2016-10-08 2018-04-17 河南省金拐杖医疗科技有限公司 A kind of novel and multifunctional electronic auscultation device
CN106388854A (en) * 2016-11-18 2017-02-15 广西大学 Electronic auscultation system
CN107550515A (en) * 2017-09-15 2018-01-09 中国科学院微电子研究所 Stethoscope system

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Application publication date: 20150114