CN109998587B - Electronic heart sound and lung sound remote auscultation system - Google Patents
Electronic heart sound and lung sound remote auscultation system Download PDFInfo
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- CN109998587B CN109998587B CN201910340854.7A CN201910340854A CN109998587B CN 109998587 B CN109998587 B CN 109998587B CN 201910340854 A CN201910340854 A CN 201910340854A CN 109998587 B CN109998587 B CN 109998587B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/003—Detecting lung or respiration noise
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
- A61B7/04—Electric stethoscopes
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H80/00—ICT specially adapted for facilitating communication between medical practitioners or patients, e.g. for collaborative diagnosis, therapy or health monitoring
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Abstract
The invention relates to an electronic heart sound and lung sound remote auscultation system which comprises an audio processing mechanism, wherein the audio processing mechanism comprises an audio processing mechanism, one end of the audio processing mechanism is electrically connected with a pickup microphone, the other end of the audio processing mechanism is electrically connected with an earphone microphone and a remote consultation platform, and the remote consultation platform is used for remotely diagnosing heart sound and lung sound; the sound pickup microphone is arranged on the sounding mechanism, the sounding mechanism is of a telescopic sleeve structure, the sounding mechanism is used for sounding heart sounds and lung sounds, and the telescopic sleeve structure is used for changing the size of a sounding opening of the sounding mechanism; the electronic heart sound and lung sound remote auscultation system has the advantages that a doctor can select a proper auscultation tube body according to the age group of a patient to be auscultated, the structure is variable, the application range is wide, and the stethoscope does not need to be frequently replaced; when utilizing first body, second body auscultation, can form the funnel structure between the body to gather together sound, improve the sound collection effect.
Description
Technical Field
The invention relates to an electronic heart sound and lung sound remote auscultation system, and belongs to the technical field of medical equipment.
Background
The stethoscope is the most commonly used diagnostic tool for doctors, and mainly comprises a sound pickup part (chest piece), a conduction part (rubber tube) and a listening part (ear piece);
the larger the contact surface between the auscultation head and the body is, the better the sound effect is picked up; however, the surface of a human body has a radian, if the chest piece is too large, the stethoscope head cannot be completely contacted with the human body, and the sound can not be well picked up and can be leaked out from a gap, so that the size of the stethoscope head is based on clinical requirements; when auscultation is carried out on people of different ages, auscultators of different sizes are needed to carry out auscultation;
the current stethoscope has the following problems:
1. because the heart sound and lung sound during auscultation cannot be uploaded for consultation, when a doctor cannot accurately judge the heard heart sound and lung sound, the doctor can make a diagnosis according to experience, and thus misdiagnosis is easily caused; the current remote consultation equipment is expensive, ordinary first-level medical institutions in villages and towns cannot be configured with the equipment, the application range is limited, and heart sounds and lung sounds cannot be effectively transmitted remotely in remote consultation;
2. the size of its auscultation head of stethoscope that present doctor equipped all is fixed, can't effectual satisfy different age bracket people's auscultation needs for the heart sound lung sound of listening to is not accurate enough, influences doctor's judgement.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an electronic heart sound and lung sound remote auscultation system, which has the following specific technical scheme:
an electronic heart sound and lung sound remote auscultation system comprises an audio processing mechanism, wherein the audio processing mechanism comprises an audio processing mechanism, one end of the audio processing mechanism is electrically connected with a pickup microphone, the other end of the audio processing mechanism is electrically connected with an earphone and a remote consultation platform, and the remote consultation platform is used for remotely diagnosing heart sound and lung sound;
the pickup microphone is installed on the probing mechanism, the probing mechanism is the telescopic sleeve structure, the probing mechanism is used for probing heart sound and lung sound, the telescopic sleeve structure is used for changing the probing opening size of the probing mechanism.
As an improvement of the above technical solution, the remote consultation platform includes a mobile terminal, a superior medical monitoring platform and an expert consultation platform, one end of the mobile terminal is connected to the audio processing mechanism through a data line, and the other end of the mobile terminal is communicatively connected to the superior medical monitoring platform and the expert consultation platform; the mobile terminal is internally provided with a remote diagnosis application, and the remote diagnosis application comprises a video call unit and a heart sound and lung sound transmission unit; the video call unit is used for video voice call, and the heart sound and lung sound transmission unit is used for transmitting the heart sound and lung sound monitored by the sounding mechanism in real time.
As an improvement of the above technical scheme, the audio processing mechanism includes a housing, a PLC board, a preamplifier, a low-pass filter amplifier, a single chip microcomputer, and a button cell, the housing is internally provided with the PLC board, the PLC board is electrically connected to the preamplifier, the low-pass filter amplifier, and the single chip microcomputer, the pickup microphone is electrically connected to the preamplifier, the low-pass filter amplifier, and the single chip microcomputer are sequentially connected in series, the single chip microcomputer is electrically connected to the headset, the button cell is used for supplying power to the PLC board, and the single chip microcomputer is in communication connection with the mobile terminal.
As an improvement of the above technical scheme, the sounding mechanism includes a first pipe, a second pipe and a third pipe, the second pipe is slidably sleeved inside the first pipe, the third pipe is slidably sleeved inside the second pipe, and the first pipe, the second pipe and the third pipe are tightly attached to each other and detachably and fixedly connected to each other.
As an improvement of the above technical solution, the first tube, the second tube, and the third tube have the same length therebetween, and the opening cross sections of the first tube, the second tube, and the third tube are horn-shaped.
As an improvement of the above technical solution, two ends of an outer wall of the first pipe body are respectively connected with a first limiting part and a second limiting part, the first limiting part and the second limiting part are both completely embedded into the first pipe body, and the first pipe body is connected with the second pipe body through the first limiting part or the second limiting part.
As an improvement of the technical scheme, the inner diameter of the first pipe body is 45-50 mm.
As an improvement of the above technical solution, two ends of an outer wall of the second pipe body are respectively connected with a third limiting part and a fourth limiting part, the third limiting part and the fourth limiting part are both completely embedded into the second pipe body, and the second pipe body is connected with the third pipe body through the third limiting part or the fourth limiting part.
As an improvement of the technical scheme, the inner diameter of the second pipe body is 28-33 mm.
As the improvement of the technical scheme, a vibrating membrane is arranged inside the third pipe body, the pickup microphone is attached to one side of the vibrating membrane, and the inner diameter of the third pipe body is 16-20 mm.
The invention has the beneficial effects that:
1. when the village and town doctors cannot judge whether the heart sound and the lung sound have problems, the upper medical monitoring platform or the expert consultation platform can be contacted through the mobile terminal; the village and town doctors can carry out video call with the doctors or experts in the superior hospital, and meanwhile, the heart sounds and the lung sounds monitored by the stethoscope can be transmitted to the remote diagnosis application of the mobile phone of the opposite party in real time, and the personnel in the superior medical department or the team of experts can hear the heart sounds and the lung sounds in real time to carry out remote consultation, so that the misdiagnosis condition of the medical department is reduced;
2. doctors can select proper sounding pipe bodies according to the age groups of patients to be auscultated, the structure is variable, the application range is wide, and the stethoscope does not need to be frequently replaced; when utilizing first body or second body auscultation, can form the funnel structure between the body to gather together sound, improve the sound collection effect.
Drawings
Fig. 1 is a schematic structural diagram of an electronic heart sound and lung sound remote auscultation system according to the present invention;
FIG. 2 is a schematic diagram illustrating a heart sound and lung sound remote auscultation principle according to the present invention;
fig. 3 is a schematic structural diagram of a probing state of a first pipe in the probing mechanism according to the present invention;
fig. 4 is a schematic structural diagram of a probing state of a second pipe in the probing mechanism according to the present invention;
fig. 5 is a schematic structural diagram of a probing state of a third pipe in the probing mechanism according to the present invention;
fig. 6 is a schematic structural diagram of an audio processing mechanism according to the present invention.
Reference numerals: 1. the system comprises a sounding mechanism, 11, a first tube, 111, a first limit part, 112, a second limit part, 12, a second tube, 121, a third limit part, 122, a fourth limit part, 13, a third tube, 131, a vibrating diaphragm, 2, a pickup microphone, 3, an audio processing mechanism, 31, an outer shell, 32, a PLC board, 33, a preamplifier, 34, a low-pass filter amplifier, 35, a single chip microcomputer, 36, a button cell, 4, an earphone, 41, a microphone, 5, a cable, 6, a mobile terminal, 61, a remote diagnosis application, 611, a video call unit, 612, a heart sound and lung sound transmission unit, 7, a superior medical monitoring platform, 8 and an expert consultation platform.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An electronic heart sound and lung sound remote auscultation system comprises an audio processing mechanism 3, wherein one end of the audio processing mechanism 3 is electrically connected with a pickup microphone 2, the other end of the audio processing mechanism 3 is electrically connected with an earphone 4 and a remote consultation platform, and the remote consultation platform is used for remotely diagnosing heart sound and lung sound; a microphone 41 is arranged in the earphone 4, and the microphone 41 is used for transmitting the voice information of the doctor to the audio processing mechanism 3 and further transmitting the voice information to the mobile phone of the remote doctor;
Preferably, the remote consultation platform comprises a mobile terminal 6, a superior medical monitoring platform 7 and an expert consultation platform 8, one end of the mobile terminal 6 is connected with the audio processing mechanism 3 through a data line, and the other end of the mobile terminal 6 is connected to the superior medical monitoring platform 7 and the expert consultation platform 8 in a communication mode; the mobile terminal 6 is internally provided with a remote diagnosis application 61, and the remote diagnosis application 61 comprises a video call unit 611 and a heart sound and lung sound transmission unit 612; the video call unit 611 is configured to perform a video voice call, and the heart sound and lung sound transmission unit 612 is configured to transmit heart sound and lung sound monitored by the sounding mechanism 1 in real time;
the audio processing mechanism 3 can convert the sound into an electric signal, and then the electric signal is transmitted to the mobile terminal 6 through a data line, the mobile terminal 6 is internally provided with a remote diagnosis application 6, and the remote diagnosis application 61 is used for video call and audio real-time transmission; the mobile terminal 6 may be a notebook computer, a mobile phone, for example;
when the village and town doctors cannot judge whether heart sound and lung sound have problems, the mobile terminal 6 is connected with the stethoscope by a data line, and then the mobile terminal 6 is in contact with a superior medical monitoring platform 7 or an expert consultation platform 8; village and town doctors can carry out video call with doctors or experts in a superior hospital, and meanwhile, heart sounds and lung sounds monitored by the stethoscope can be transmitted to the remote diagnosis application 61 of the mobile phone of the opposite party in real time, and superior medical department personnel or expert team personnel can hear the heart sounds and the lung sounds in real time to carry out remote consultation, so that the occurrence of misdiagnosis of the medical department can be reduced;
preferably, the audio processing mechanism 3 includes an outer housing 31, a PLC board 32, a preamplifier 33, a low-pass filter amplifier 34, a single chip microcomputer 35 and a button cell 36, the PLC board 32 is installed inside the outer housing 31, the PLC board 32 is electrically connected to the preamplifier 33, the low-pass filter amplifier 34 and the single chip microcomputer 35, the sound pickup microphone 2 is electrically connected to the preamplifier 33, the low-pass filter amplifier 34 and the single chip microcomputer 35 are sequentially connected in series, the single chip microcomputer 35 is electrically connected to the headset 4, the button cell 36 is used for supplying power to the PLC board 32, and the single chip microcomputer 35 is communicatively connected to the mobile terminal 6;
sound is conducted to the vibrating diaphragm 131 through each body, then is received by the pickup microphone 2 and is changed into the signal of telecommunication, and the signal of telecommunication is through preamplifier 33 amplification, low pass filter amplifier 34 filtration and amplification, then transmits to headset 4 and mobile terminal 6 through singlechip 35, and the doctor alright clear hear the heartbeat sound.
Preferably, the sounding mechanism 1 includes a first pipe 11, a second pipe 12 and a third pipe 13, the second pipe 12 is slidably sleeved inside the first pipe 11, and the third pipe 13 is slidably sleeved inside the second pipe 12; the first tube 11, the second tube 12 and the third tube 13 are sleeved with each other in a sliding manner so as to facilitate a user to change the extending tubes and further change the diameter of the sounding opening;
the first pipe body 11, the second pipe body 12 and the third pipe body 13 are tightly attached and detachably and fixedly connected with each other; the tight fit is used for eliminating a connection gap and improving the vibration wave conduction effect, and the detachable fixed connection is used for facilitating the movement and positioning of each pipe body.
Preferably, the lengths of the first tube 11, the second tube 12 and the third tube 13 are the same, and the lengths of the tubes are the same for storage and storage, so as to reduce the occupied volume;
the opening cross sections of the first tube body 11, the second tube body 12 and the third tube body 13 are horn-shaped; the horn-shaped structure is used for enabling the pipe body to be attached to the skin more tightly, and the vibration waves are conducted more easily.
Preferably, a first limiting member 111 and a second limiting member 112 are respectively connected to two ends of the outer wall of the first pipe 11; the first limiting member 111 and the second limiting member 112 are used for limiting and fixing the second pipe body 12 from the front end to the rear end;
the first limiting piece 111 and the second limiting piece 112 are completely embedded into the first pipe body 11, so as to reduce the occupied space of the limiting pieces and prevent people from being knocked by the protruding parts of the limiting pieces;
the first pipe 11 is connected to the second pipe 12 through the first stopper 111 or the second stopper 112; the first stopper 111 or the second stopper 112 is selectively used for positioning according to the moving position of the second pipe 12.
Preferably, the inner diameter of the first pipe 11 is 45-50 mm; the inner diameter is 45-50 mm to make the first tube 11 meet the organ listening requirements of adults, and meet the existing standards.
Preferably, a third limiting member 121 and a fourth limiting member 122 are respectively connected to two ends of the outer wall of the second pipe body 12, and the third limiting member 121 and the fourth limiting member 122 are used for limiting and fixing the third pipe body 13 from the front end to the rear end;
the third limiting member 121 and the fourth limiting member 122 are completely embedded in the second pipe body 12; the second pipe body 12 is completely embedded to ensure that the second pipe body moves more smoothly and is not blocked by the limiting part, and the space occupied by the limiting part can be reduced;
the second tube 12 is connected to the third tube 13 through the third stopper 121 or the fourth stopper 122; the third limiting member 121 or the fourth limiting member 122 is selectively used for positioning according to the moving position of the third pipe 13.
Preferably, the inner diameter of the second tube 12 is 28-33 mm; the inner diameter is 28-33 mm to meet the requirement of the second tube 12 for organ listening of children, and the second tube meets the existing standard.
Preferably, a diaphragm 131 is mounted inside the third tube 13, the sound collecting microphone 2 is attached to one side of the diaphragm 131, vibration waves are finally transmitted to the diaphragm 131, and the diaphragm 131 enables the sound collecting microphone 2 to receive heart sounds and lung sounds;
the inner diameter of the third pipe body 13 is 16-20 mm; the inner diameter is 16-20mm to make the third tube 13 meet the organ listening requirement of the newborn and meet the existing standard.
As shown in fig. 3, fig. 3 is a schematic structural diagram illustrating a probing state of a first pipe in the probing mechanism according to the present invention;
when adult auscultation is performed, a doctor uses the first tube 11 to perform auscultation, namely, the first tube 11 is arranged at the outermost part, the second tube 12 is received in the first tube 11, the first tube 11 fixes the second tube 12 inside the first tube 11 through the second limiting member 112, the third tube 13 is received in the second tube 12, the second tube 12 fixes the third tube 13 inside the second tube 12 through the fourth limiting member 122, when heart beat sounds are collected, because the inner diameters of the first tube 11, the second tube 12 and the third tube 13 gradually decrease to form a funnel structure, the sounds are continuously gathered under the action of the funnel structure to increase the sounds, so that the sound collection effect is improved, the sounds are transmitted to the vibrating membrane 131 through the tubes and then received by the pickup microphone 2 to be converted into electric signals, the electric signals are amplified through the preamplifier 33 and filtered and amplified by the low pass filter amplifier 34, then the heartbeat sound is transmitted to the headset 4 through the single chip microcomputer 35, so that a doctor can clearly hear the heartbeat sound.
As shown in fig. 4, fig. 4 is a schematic structural diagram illustrating a probing state of a second pipe in the probing mechanism according to the present invention;
when a teenager is audited, the second tube 12 needs to be selected for audition, a doctor unscrews the second limiting pieces 112, each limiting piece can be provided with a shifting piece convenient to rotate, then pushes the pickup microphone 2, so that the second tube 12 slides forwards along the inner wall of the first tube 11 until the second tube 12 extends outwards, meanwhile, the fourth limiting piece 122 connects the third tube 13 and the second tube 12 into a whole, the third tube 13 can synchronously move along with the second tube 12, and after the teenager moves to a proper position, the first limiting piece 111 is screwed down to limit the second tube 12, and thus switching of the audition openings can be completed; at this time, the heart sound is transmitted to the diaphragm 131 in the third tube 13 through the second tube 12, and the sound is collected due to the funnel structure having a reduced inner diameter formed by the third tube 13 and the second tube 12, thereby improving the receiving effect.
As shown in fig. 5, fig. 5 is a schematic structural diagram illustrating a probing state of a third pipe in the probing mechanism according to the present invention;
when the infant needs to be probed, the third tube 13 needs to be used for probing, the fourth limiting member 122 is firstly screwed off, the third tube 13 is pushed inwards along the second tube 12, when the third tube 13 extends outwards from the second tube 12, the third tube stops, the second limiting member 112 is unscrewed, the second tube 12 is pushed out of the first tube 11, the first limiting member 111 is screwed, the extending length of the third tube 13 is finally adjusted, and the third limiting member 121 is screwed; at this time, the third tube 13 is in direct contact with the skin, and the sound is directly transmitted to the diaphragm 131.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a long-range auscultation system of electronic type heart sound, lung sound which characterized in that: the system comprises an audio processing mechanism (3), wherein one end of the audio processing mechanism (3) is electrically connected with a pickup microphone (2), the other end of the audio processing mechanism (3) is electrically connected with an earphone (4) and a remote consultation platform, and the remote consultation platform is used for remotely diagnosing heart sound and lung sound;
the sound pickup microphone (2) is mounted on the sounding mechanism (1), the sounding mechanism (1) is of a telescopic sleeve structure, the sounding mechanism (1) is used for sounding heart sounds and lung sounds, and the telescopic sleeve structure is used for changing the size of a sounding opening of the sounding mechanism (1);
the sounding mechanism (1) comprises a first pipe body (11), a second pipe body (12) and a third pipe body (13), the second pipe body (12) is sleeved inside the first pipe body (11) in a sliding mode, the third pipe body (13) is sleeved inside the second pipe body (12) in a sliding mode, and the first pipe body (11), the second pipe body (12) and the third pipe body (13) are tightly attached to each other and are detachably and fixedly connected with each other;
a first limiting piece (111) and a second limiting piece (112) are respectively connected to two ends of the outer wall of the first pipe body (11), the first limiting piece (111) and the second limiting piece (112) are both completely embedded into the first pipe body (11), and the first pipe body (11) is connected with the second pipe body (12) through the first limiting piece (111) or the second limiting piece (112);
a third limiting piece (121) and a fourth limiting piece (122) are respectively connected to two ends of the outer wall of the second pipe body (12), the third limiting piece (121) and the fourth limiting piece (122) are completely embedded into the second pipe body (12), and the second pipe body (12) is connected with the third pipe body (13) through the third limiting piece (121) or the fourth limiting piece (122);
the first pipe body is subjected to snooping: namely, the first tube body is arranged at the outermost part, the second tube body is contained in the first tube body, the first tube body fixes the second tube body in the first tube body through the second limiting piece, the third tube body is contained in the second tube body, and the second tube body fixes the third tube body in the second tube body through the fourth limiting piece;
the second pipe body is subjected to snooping: unscrewing the second limiting piece, then pushing the pickup microphone to enable the second pipe body to slide forwards along the inner wall of the first pipe body until the second pipe body extends outwards, meanwhile, connecting the third pipe body and the second pipe body into a whole by the fourth limiting piece, enabling the third pipe body to move synchronously with the second pipe body, screwing the first limiting piece to limit the second pipe body after the third pipe body moves to a proper position,
the third pipe body is subjected to snooping: the fourth limiting part is firstly screwed down, the third pipe body is pushed inwards along the second pipe body, the third pipe body stops when the second pipe body extends outwards, then the second limiting part is unscrewed, the second pipe body is pushed out of the first pipe body part, then the first limiting part is screwed down, finally the extending length of the third pipe body is adjusted, the third limiting part is screwed down, and at the moment, the third pipe body is directly contacted with the skin.
2. The electronic heart sound and lung sound remote auscultation system of claim 1, wherein: the remote consultation platform comprises a mobile terminal (6), a superior medical monitoring platform (7) and an expert consultation platform (8), one end of the mobile terminal (6) is connected with the audio processing mechanism (3) through a data line, the other end of the mobile terminal (6) is in communication connection with the superior medical monitoring platform (7) and the expert consultation platform (8), a remote diagnosis application (61) is arranged in the mobile terminal (6), and the remote diagnosis application (61) comprises a video call unit (611) and a heart sound and lung sound transmission unit (612); the video call unit (611) is used for video voice call, and the heart sound and lung sound transmission unit (612) is used for transmitting the heart sound and lung sound monitored by the sounding mechanism (1) in real time.
3. The electronic heart sound and lung sound remote auscultation system of claim 2, wherein: audio frequency processing mechanism (3) include shell body (31), PLC board (32), preamplifier (33), low pass filter amplifier (34), singlechip (35) and button cell (36), the internally mounted of shell body (31) has PLC board (32), PLC board (32) electric connection preamplifier (33), low pass filter amplifier (34), singlechip (35), pickup microphone (2) electric connection preamplifier (33), establish ties in proper order between preamplifier (33), low pass filter amplifier (34), singlechip (35) electric connection to headset (4), button cell (36) are used for right PLC board (32) power supply, singlechip (35) communication connection mobile terminal (6).
4. The electronic heart sound and lung sound remote auscultation system of claim 1, wherein: the length of the first pipe body (11), the length of the second pipe body (12) and the length of the third pipe body (13) are the same, and the opening sections of the first pipe body (11), the second pipe body (12) and the third pipe body (13) are horn-shaped.
5. The electronic heart sound and lung sound remote auscultation system of claim 1, wherein: the inner diameter of the first pipe body (11) is 45-50 mm.
6. The electronic heart sound and lung sound remote auscultation system of claim 1, wherein: the inner diameter of the second pipe body (12) is 28-33 mm.
7. The electronic heart sound and lung sound remote auscultation system of claim 1, wherein: the internally mounted of third body (13) has vibrating diaphragm (131), one side laminating of vibrating diaphragm (131) sets up pickup microphone (2), the internal diameter of third body (13) is 16-20 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910340854.7A CN109998587B (en) | 2019-04-25 | 2019-04-25 | Electronic heart sound and lung sound remote auscultation system |
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| CN201910340854.7A CN109998587B (en) | 2019-04-25 | 2019-04-25 | Electronic heart sound and lung sound remote auscultation system |
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| CN109998587A CN109998587A (en) | 2019-07-12 |
| CN109998587B true CN109998587B (en) | 2022-02-11 |
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|---|---|---|---|---|
| CN101507613A (en) * | 2008-11-25 | 2009-08-19 | 余翔 | Intelligent multifunctional stethoscope |
| US8611575B1 (en) * | 2010-11-04 | 2013-12-17 | Paul N. Hagman | Speaker system method and apparatus |
| CN103654841A (en) * | 2013-12-13 | 2014-03-26 | 重庆大学 | Portable digital stethoscope |
| DE202016006177U1 (en) * | 2016-07-08 | 2016-10-21 | idesign AG | Mobile sound amplifier and mobile speaker provided therewith |
| CN206482593U (en) * | 2016-11-03 | 2017-09-12 | 刘妙娥 | A kind of integral type stethoscope |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8042646B2 (en) * | 2008-03-25 | 2011-10-25 | Environmentally Smart Products, Inc. | Stethoscope cover |
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|---|---|---|---|---|
| CN101507613A (en) * | 2008-11-25 | 2009-08-19 | 余翔 | Intelligent multifunctional stethoscope |
| US8611575B1 (en) * | 2010-11-04 | 2013-12-17 | Paul N. Hagman | Speaker system method and apparatus |
| CN103654841A (en) * | 2013-12-13 | 2014-03-26 | 重庆大学 | Portable digital stethoscope |
| DE202016006177U1 (en) * | 2016-07-08 | 2016-10-21 | idesign AG | Mobile sound amplifier and mobile speaker provided therewith |
| CN206482593U (en) * | 2016-11-03 | 2017-09-12 | 刘妙娥 | A kind of integral type stethoscope |
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