CN102283671B - Device and method for acquiring heart sound - Google Patents
Device and method for acquiring heart sound Download PDFInfo
- Publication number
- CN102283671B CN102283671B CN 201110190883 CN201110190883A CN102283671B CN 102283671 B CN102283671 B CN 102283671B CN 201110190883 CN201110190883 CN 201110190883 CN 201110190883 A CN201110190883 A CN 201110190883A CN 102283671 B CN102283671 B CN 102283671B
- Authority
- CN
- China
- Prior art keywords
- auscultation
- clothes
- head
- elastic webbing
- auscultation head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a device and a method for acquiring heart sound. The device comprises auscultation clothes and four auscultation heads fixed on the auscultation clothes, wherein the auscultation clothes comprise a first elastic band, elastic lining cloth, a second elastic band and a fixed piece; the four auscultation heads comprise a first auscultation head, a second auscultation head, a third auscultation head and a fourth auscultation head respectively; the first auscultation head and the second auscultation head are fixed on the first elastic band; and the third auscultation head and the fourth auscultation head are fixed on the second elastic band. When the device for acquiring the heart sound is used for acquiring a heart sound signal, the auscultation heads can be directly fixed in the precordial region of a patient, and a doctor is not required to auscultate by handholding the auscultation heads, so that interference in auscultation caused by factors such as hand trembling of the doctor, body wobbling of the patient and the like can be prevented to acquire relatively pure heart sound signals, and the hear sound signals at four clinical auscultation positions can be synchronously acquired to provide more abundant clinical information.
Description
Technical field
The application relates to the armarium technical field, particularly relates to a kind of heart sound acquisition device.
Background technology
Show according to " Chinese cardiovascular diseases's report (2008～2009) ": China cardiovascular diseases (coronary heart disease, apoplexy, heart failure, hypertension) morbidity and mortality rate all are growing trend, estimate that China cardiovascular diseases now suffers from number at least 2.3 hundred million, become " the No.1 killer " of Chinese's health.Along with the development of the social globalization of mankind nowadays, urbanization and aging, the cardiovascular disease problem becomes increasingly conspicuous.Therefore, how to find as early as possible the sign of cardiovascular disease pathological changes, in time understand its state of development, the prevention of cardiovascular disease and in time diagnosis and treatment are had great importance.
Hear sounds is the diastole contraction due to valvular switch, tendon and muscle, the impact of blood flow and a kind of compound tone that the cardiovascular wall vibrations produces.The a large amount of pathological informations about heart various piece such as atrium, ventricle, trunk, cardiovascular and each valvular function state that it comprises are basic parameters of clinical assessment heart function state.Be enough to produce clinical pathology and change before (changing as electrocardiogram) when cardiovascular disease not yet develops into, the noise that occurs in hear sounds and distortion are exactly important diagnostic message.Therefore, hear sounds has the irreplaceable important clinical Diagnostic Superiority of electrocardio.Simultaneously, easy to detect, noinvasive, the cost of cardiechema signals are minimum, can be used as that the cardiovascular diseases detects, the conventional means of prevention.
When clinically heart being carried out auscultation at present, the doctor needs hand-held stethoscope to move around to determine the strongest position of sound and conduction orientation thereof at the auscultation position usually.Because the cardiac auscultation effect is subjected to directly affecting of stethoscope sensitivity, people's ear audition state, doctor's clinical experience and auscultation technology, even if also needing to change by one side, skilled doctor contacts stethoscopic position, on one side carry out auscultation repeatedly at sound the strongest position and come the identification hear sounds, this often is difficult to the written in water sound detection that produces in the cardiomotility process is arrived.In addition, long-time auscultation also easily causes audition tired, and the hand-held auscultation head of doctor carries out auscultation, the interference that also can bring auscultation due to factors such as the shake of doctor's hands and patient body rock.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of heart sound acquisition device, this heart sound acquisition device is when gathering cardiechema signals, can be fixed on it the patient, and four auscultation heads that arrange on it can the synchronous acquisition cardiechema signals, adopts hand-held stethoscope and singly leads the problem that bring tin clinic to solve.
To achieve these goals, the technical scheme that provides of the embodiment of the present application is as follows:
A kind of heart sound acquisition device comprises: auscultation takes and is fixed on four auscultation heads on described auscultation clothes, wherein:
Described auscultation clothes comprise the first elastic webbing, elasticity lining cloth, the second elastic webbing and fixture, described the first elastic webbing and the second elastic webbing lay respectively at two sides of described elasticity lining cloth, two ends at described the first elastic webbing and the second elastic webbing fix respectively, described fixture is arranged on the two ends of described auscultation clothes, and described auscultation clothes annular can be connected;
Four described auscultation heads are respectively the first auscultation head, the second auscultation head, the 3rd auscultation head and the 4th auscultation head, wherein: described the first auscultation head and the second auscultation head are fixed on described the first elastic webbing, and described the 3rd auscultation head and the 4th auscultation head are fixed on the second elastic webbing.
Preferably, described the first auscultation head and described the second auscultation head lay respectively at the both sides of the centrage of described auscultation clothes, and described the 3rd auscultation head and the 4th auscultation head are positioned at the same side of the centrage of described auscultation clothes.
Preferably, described the first elastic webbing and the second elastic webbing are by sewing up or being adhesively fixed on described elasticity lining cloth.
Preferably, described fixture is hasp or tape.
Preferably, described auscultation head comprises: bowl type vibration cavity, vibrating diaphragm, sealing ring, guiding tube and mike, wherein:
Described vibrating diaphragm is coated on the edge of described bowl type vibration cavity, and described sealing ring seals described vibrating diaphragm and described bowl of type vibration cavity edge fixing mutually;
Described guiding tube is fixed on the bottom of described bowl type vibration cavity, and be positioned at the outside of described bowl type vibration cavity, described guiding tube is connected with described bowl type vibration cavity inside, the end of described guiding tube is passed described auscultation clothes and is fixed with described auscultation clothes, and the bowl type vibration cavity of four described auscultation heads all is positioned on the same side of described auscultation clothes;
Described mike is arranged in described guiding tube, is used for amplification and gathers the interior cardiechema signals of described bowl type vibration cavity.
Preferably, the end of described guiding tube is provided with external screw thread, and described auscultation clothes are passed afterwards in the end of described guiding tube and nut fixes.
A kind of hear sounds acquisition method comprises:
Fix four auscultation heads corresponding to aortic valve, valve of pulmonary trunk, Tricuspid valve and mitral four clinical auscultation positions respectively on body surface;
Gather simultaneously the cardiechema signals that four described auscultation heads are collected.
By above technical scheme as seen, this heart sound acquisition device that the embodiment of the present application provides, be provided with four auscultation heads on the auscultation clothes, in use, can take by being arranged on auscultation the fixture at two ends, auscultation is taken annular is fixed on patient chest, and make that the first auscultation head on auscultation clothes is corresponding with aortic valve clinical auscultation position, the second auscultation head and valve of pulmonary trunk clinical auscultation position is corresponding, the 3rd auscultation head and Tricuspid valve clinical auscultation position is corresponding and the 4th auscultation head and Bicuspid valve clinical auscultation position corresponding.
Compared with prior art, use this heart sound acquisition device when gathering cardiechema signals, can directly auscultation head be fixed on patient's pareordia, need not the hand-held auscultation head of doctor and carry out auscultation, not only can avoid because the shake of doctor's hands and patient body the factor such as rock and interference that auscultation is brought, obtain purer cardiechema signals, can also synchronous acquisition the cardiechema signals of four clinical auscultation positions, more abundant clinical information is provided.
When actual auscultation, because there are certain positive correlation in spacing and buman body type between each auscultation of human heart position, and due to patient health situation or individual variation, the auscultation position slightly changes.The auscultation clothes of this heart sound acquisition device adopt elastomeric material to make, and can be applicable to preferably the fat or thin individuality of height, and the fluffy method of sewing of elasticity lining cloth employing fold of auscultation clothes, make the men and women all can use.When auscultation, after auscultation clothes were fixed on patient chest, the doctor can flexibly, freely adjust auscultation head according to actual needs, the position movement of auscultation head was carried out auscultation to hear sounds the strongest position, to obtain best auscultation effect.Therefore the scope of application of these auscultation clothes is larger, can be used for the health screening of large tracts of land crowd cardiac function.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, the accompanying drawing that the following describes is only some embodiment that put down in writing in the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the heart sound acquisition device that Fig. 1 provides for the embodiment of the present application.
The structural representation of the heart sound acquisition device that Fig. 2 provides for the embodiment of the present application when clinical trial;
Fig. 3 is along the cross-sectional structure schematic diagram of AP line in Fig. 2;
The schematic flow sheet of the hear sounds acquisition method that Fig. 4 provides for the embodiment of the present application.
The specific embodiment
In order to make those skilled in the art person understand better technical scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiment.Based on the embodiment in the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all should belong to the scope of the application's protection.
The structural representation of the heart sound acquisition device that Fig. 1 provides for the embodiment of the present application.
As shown in Figure 1, this heart sound acquisition device comprises: auscultation takes 100 and be fixed on auscultation and take the first auscultation head 11, the second auscultation head 12, the 3rd auscultation head 13, the 4th auscultation head 14 on 100.
As shown in Figure 1, auscultation takes 100 and comprises: the first elastic webbing 101, elasticity lining cloth 102 and the second elastic webbing 102, wherein: the first elastic webbing 101 is fixed on the upside of elasticity lining cloth 102, the second elastic webbing 101 is fixed on the downside of elasticity lining cloth 102, and the two ends of the first elastic webbing 101 and the second elastic webbing 102 fix.
In the embodiment of the present application, the material of the first elastic webbing 101 and the second elastic webbing 103 is elastic bandage, the material of elasticity lining cloth 102 is elasticity PVC material, and the first elastic webbing 101 and the second elastic webbing 103 are by sewing up or bonding mode is fixed on elasticity lining cloth 102.Take 100 two ends in auscultation and also be provided with fixture 104, be used for that this auscultation is taken 100 annulars and be fixed up, when using this auscultation to take auscultation, can be fixed on easily patient chest like this, fixture 104 can be hasp or adhesion etc.As shown in Figure 1, in the embodiment of the present application, fixture 104 is preferably tape.
Because the first elastic webbing 101, the second elastic webbing 103 and elasticity lining cloth 102 are elastomeric material, and be the fold puffy after elasticity lining cloth 102 is sewed up, institute is so that this auscultation clothes can be applicable to the fat or thin individuality of height preferably, and the men and women all can use, namely the scope of application of these auscultation clothes is larger, can be used for the health screening of large tracts of land crowd cardiac function.In addition, because there are certain positive correlation in spacing and buman body type between each auscultation of human heart position, and due to patient health situation or individual variation, the auscultation position slightly changes, cause patient's cardiophony position slightly to change, after these auscultation clothes are fixed on patient chest, because these auscultation clothes have certain elasticity, so the doctor can be according to actual needs, flexible mobile auscultation head, the position movement of auscultation head is carried out auscultation to hear sounds the strongest position, to obtain best auscultation effect.
The structural representation of the heart sound acquisition device that Fig. 2 provides for the embodiment of the present application when clinical trial.
In figure, 300 is the patient, 200 centrages for the auscultation clothes.As shown in Figure 2, the first auscultation head 11, the second auscultation head 12 are fixed on the first elastic webbing 101, and the 3rd auscultation head 13 and the 4th auscultation head 14 are fixed on the second elastic webbing 103.
In the embodiment of the present application, the first auscultation head 11 is mainly used in gathering the cardiechema signals of patient's aortic valve clinical auscultation position, the second auscultation head 12 is mainly used in gathering the cardiechema signals of Patients with Lung arterial valve clinical auscultation position, so the fixed position of the first auscultation head 11 and the second auscultation head 12 lays respectively at the both sides of centrage 200, and preferably, the first auscultation head 11 and the second auscultation head 12 can be symmetrical about centrage 200, and the first auscultation head 11 and the second auscultation head 12 horizontal alignments.In addition, the 3rd auscultation head 13 is mainly used in gathering the cardiechema signals of patient's Tricuspid valve clinical auscultation position, the 4th auscultation head 14 is mainly used in gathering the cardiechema signals of patient's Bicuspid valve clinical auscultation position, so the 3rd auscultation head 13 and the 4th auscultation head all are positioned at the same side that auscultation takes 100 centrages 200, and the 4th auscultation head 14 is a little less than the 3rd auscultation head 13.
in the prior art, the doctor usually needs hand-held stethoscope to move around to determine the strongest position of sound and conduction orientation thereof at the auscultation position, this hear sounds acquisition mode of singly leading, when gathering, the experimenter may be because nervous, health, the reasons such as surrounding environment influence, make its cardiomotility state different, cause the comparative of heart sound data between each position to weaken, and the heart sound acquisition device that the embodiment of the present application provides, adopt four to lead the synchronous acquisition heart sound data, at first, time difference in the time of can getting rid of each position hear sounds and gather, strengthen the Data Comparison under the same terms, secondly, this heart sound acquisition device can record two simultaneously with the hear sounds of upper part, can correctly identify the composition of S1 and S2, find out the relation of noise and hear sounds, but and the strongest position of estimation voice and conduction orientation thereof, and when carrying out the hear sounds collection, the doctor need not different parts is carried out repetitive operation, auscultation is to determine the cardiac valve damaged part repeatedly, make diagnosis efficiency improve.
Fig. 3 is along the cross-sectional structure schematic diagram of AP line in Fig. 2.
As shown in Figure 3, in the embodiment of the present application, auscultation head comprises: bowl type vibration cavity 20, vibrating diaphragm 21, sealing ring 22, guiding tube 23 and mike 24, wherein:
Bowl type vibration cavity 20 be shaped as a bowl type, in the bottom of bowl type vibration cavity 20, through hole is set; Vibrating diaphragm 21 is coated on bowl edge of type vibration cavity 20, and vibrating diaphragm 21 seals fixing mutually by sealing ring 22 and bowl edge of type vibration cavity 20, and vibrating diaphragm 21 is used for collecting patient's cardiechema signals; Guiding tube 23 is fixed on bowl through hole of type vibration cavity 20, and is positioned at bowl outside of type vibrating diaphragm 20, so just makes guiding tube 23 be connected with the inside of bowl type vibration cavity 20, namely can be with the sound conduction in bowl type vibration cavity 20 in guiding tube 23.Mike 24 is fixed in guiding tube 23, preferably, is positioned at the end of guiding tube 23, and mike 24 is used for amplifying and gathering cardiechema signals.Leading note line 26 can be transferred to the cardiechema signals that mike 24 collects in storage device or processor, in order to the cardiechema signals that collects is carried out subsequent treatment.
In the embodiment of the present application, end at guiding tube 23 arranges external screw thread, when fixing auscultation head, as shown in Figure 3, auscultation is passed in the end of guiding tube 23 to be taken 100(and comprises elasticity lining cloth 102 and elastic webbing), and the nut 25 of screwing in the end of guiding tube 23 just can be fixed on auscultation with auscultation head and take on 100.In addition, in the embodiment of the present application, the bowl type vibration cavity 20 of four auscultation heads all is positioned at auscultation and takes on 100 same side.
The schematic flow sheet of the hear sounds acquisition method that Fig. 4 provides for the embodiment of the present application.
As shown in Figure 4, this hear sounds acquisition method comprises:
Step S100: fix four auscultation heads corresponding to aortic valve, valve of pulmonary trunk, Tricuspid valve and mitral four clinical auscultation positions respectively on body surface.
Step S200: gather simultaneously the cardiechema signals that four described auscultation heads are collected.
By above technical scheme as seen, this heart sound acquisition device that the embodiment of the present application provides, be provided with four auscultation heads on the auscultation clothes, in use, can take by being arranged on auscultation the fixture at two ends, auscultation is taken annular is fixed on patient chest, and make that the first auscultation head on auscultation clothes is corresponding with aortic valve clinical auscultation position, the second auscultation head and valve of pulmonary trunk clinical auscultation position is corresponding, the 3rd auscultation head and Tricuspid valve clinical auscultation position is corresponding and the 4th auscultation head and Bicuspid valve clinical auscultation position corresponding.
Compared with prior art, use this heart sound acquisition device when gathering cardiechema signals, can directly auscultation head be fixed on patient's pareordia, need not the hand-held auscultation head of doctor and carry out auscultation, not only can avoid because the shake of doctor's hands and patient body the factor such as rock and interference that auscultation is brought, obtain purer cardiechema signals, can also synchronous acquisition the cardiechema signals of four clinical auscultation positions, more abundant clinical information is provided.
When actual auscultation, because there are certain positive correlation in spacing and buman body type between each auscultation of human heart position, and due to patient health situation or individual variation, the auscultation position slightly changes.The auscultation clothes of this heart sound acquisition device adopt elastomeric material to make, and can be applicable to preferably the fat or thin individuality of height, and the fluffy method of sewing of elasticity lining cloth employing fold of auscultation clothes, make the men and women all can use.When auscultation, after auscultation clothes were fixed on patient chest, the doctor can flexibly, freely adjust auscultation head according to actual needs, the position movement of auscultation head was carried out auscultation to hear sounds the strongest position, to obtain best auscultation effect.Therefore the scope of application of these auscultation clothes is larger, can be used for the health screening of large tracts of land crowd cardiac function.
The above is only the application's preferred implementation, makes those skilled in the art can understand or realize the application.Multiple modification to these embodiment will be apparent to one skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the application's spirit or scope, realization in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a heart sound acquisition device, is characterized in that, comprising: auscultation takes and is fixed on four auscultation heads on described auscultation clothes, wherein:
Described auscultation clothes comprise the first elastic webbing, elasticity lining cloth, the second elastic webbing and fixture, described the first elastic webbing and the second elastic webbing lay respectively at two sides of described elasticity lining cloth, two ends at described the first elastic webbing and the second elastic webbing fix respectively, described fixture is arranged on the two ends of described auscultation clothes, and described auscultation clothes annular can be connected;
Four described auscultation heads are respectively the first auscultation head, the second auscultation head, the 3rd auscultation head and the 4th auscultation head, wherein: described the first auscultation head and the second auscultation head are fixed on described the first elastic webbing, described the 3rd auscultation head and the 4th auscultation head are fixed on the second elastic webbing, and described the first auscultation head and described the second auscultation head lay respectively at the both sides of the centrage of described auscultation clothes, and described the 3rd auscultation head and the 4th auscultation head are positioned at the same side of the centrage of described auscultation clothes.
2. device according to claim 1, is characterized in that, described the first elastic webbing and the second elastic webbing are by sewing up or being adhesively fixed on described elasticity lining cloth.
3. device according to claim 1, is characterized in that, described fixture is hasp or tape.
4. device according to claim 1, is characterized in that, described auscultation head comprises: bowl type vibration cavity, vibrating diaphragm, sealing ring, guiding tube and mike, wherein:
Described vibrating diaphragm is coated on the edge of described bowl type vibration cavity, and described sealing ring seals described vibrating diaphragm and described bowl of type vibration cavity edge fixing mutually;
Described guiding tube is fixed on the bottom of described bowl type vibration cavity, and be positioned at the outside of described bowl type vibration cavity, described guiding tube is connected with described bowl type vibration cavity inside, the end of described guiding tube is passed described auscultation clothes and is fixed with described auscultation clothes, and the bowl type vibration cavity of four described auscultation heads all is positioned on the same side of described auscultation clothes;
Described mike is arranged in described guiding tube, is used for amplification and gathers the interior cardiechema signals of described bowl type vibration cavity.
5. device according to claim 4, is characterized in that, the end of described guiding tube is provided with external screw thread, and described auscultation clothes are passed afterwards in the end of described guiding tube and nut fixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110190883 CN102283671B (en) | 2011-07-08 | 2011-07-08 | Device and method for acquiring heart sound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110190883 CN102283671B (en) | 2011-07-08 | 2011-07-08 | Device and method for acquiring heart sound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102283671A CN102283671A (en) | 2011-12-21 |
| CN102283671B true CN102283671B (en) | 2013-05-08 |
Family
ID=45330628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110190883 Expired - Fee Related CN102283671B (en) | 2011-07-08 | 2011-07-08 | Device and method for acquiring heart sound |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102283671B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102860839A (en) * | 2012-10-25 | 2013-01-09 | 天津工业大学 | Distributed wearable dynamic heart sound collecting device |
| CN102920475A (en) * | 2012-10-31 | 2013-02-13 | 中国人民解放军总医院 | Gastrointestinal sound monitor system |
| CN104367336A (en) * | 2014-11-06 | 2015-02-25 | 姜立福 | Stethoscope and use method thereof |
| CN106982399A (en) * | 2017-01-20 | 2017-07-25 | 纳智源科技（唐山）有限责任公司 | Sound collector and the audio collecting device with it |
| CN110353725A (en) * | 2019-07-10 | 2019-10-22 | 东南大学 | A kind of heart sound acquisition and analysis system and method based on cloud framework |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3543875A (en) * | 1967-08-25 | 1970-12-01 | Minnesota Mining & Mfg | Monitoring devices |
| US4637075A (en) * | 1986-04-07 | 1987-01-20 | Med-Vest Inc. | Emergency medical services system |
| CN2061316U (en) * | 1988-06-24 | 1990-08-29 | 湛江医学院附属医院 | Multiterminal heart auscultation human body simulated device |
| CN2691491Y (en) * | 2004-01-13 | 2005-04-13 | 合世生医科技股份有限公司 | Electronic stethophone having contacting type microphone |
| CN201375523Y (en) * | 2009-02-25 | 2010-01-06 | 冷飞燕 | Silica gel tape for fixing stethoscope with double hearing heads |
-
2011
- 2011-07-08 CN CN 201110190883 patent/CN102283671B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3543875A (en) * | 1967-08-25 | 1970-12-01 | Minnesota Mining & Mfg | Monitoring devices |
| US4637075A (en) * | 1986-04-07 | 1987-01-20 | Med-Vest Inc. | Emergency medical services system |
| CN2061316U (en) * | 1988-06-24 | 1990-08-29 | 湛江医学院附属医院 | Multiterminal heart auscultation human body simulated device |
| CN2691491Y (en) * | 2004-01-13 | 2005-04-13 | 合世生医科技股份有限公司 | Electronic stethophone having contacting type microphone |
| CN201375523Y (en) * | 2009-02-25 | 2010-01-06 | 冷飞燕 | Silica gel tape for fixing stethoscope with double hearing heads |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102283671A (en) | 2011-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102283671B (en) | Device and method for acquiring heart sound | |
| AU2008241508B2 (en) | Heart sound tracking system and method | |
| AU2014209376B2 (en) | Physiological monitoring device | |
| Durand et al. | Digital signal processing of the phonocardiogram: review of the most recent advancements | |
| Johnston et al. | Vibrations of low frequency over the precordium | |
| US20240090775A1 (en) | Physiological parameter sensing systems and methods | |
| CN109646042A (en) | A kind of wearable heart sound and lungs sound monitoring device based on piezoelectric transducer | |
| CN201958900U (en) | Stethoscope head with multiple sound-collecting structures | |
| CN205866765U (en) | Stethoscope used in cardiological department | |
| Xu et al. | Robust heart rate monitoring by a wearable stethoscope based on signal processing | |
| CN108670293A (en) | The multidigit of placement and switching point multichannel is facilitated to input stethoscope | |
| US20200281558A1 (en) | Device and method for detecting physiological sound | |
| CN111358486A (en) | Double-diaphragm drum type ear-protecting stethoscope with loud sound | |
| TWI784476B (en) | Wearable inflatable auscultation device | |
| CN208864345U (en) | A kind of Cardiologists dedicated stethoscope | |
| CN205041430U (en) | Stethoscope for department of cardiovascular medicine | |
| CN212281370U (en) | Novel signal collection suction ball matched with electrocardiogram machine | |
| CN210185605U (en) | Integrated heart main and pulmonary valve stethoscope | |
| CN209360723U (en) | A kind of Special stethoscope for department of internal neurology | |
| CN204600522U (en) | Intelligent stethoscope | |
| CN208319222U (en) | A kind of Cardiologists dedicated stethoscope | |
| CN202086493U (en) | Multi-functional medical stethoscope | |
| CN212307886U (en) | Stethoscope for cardiovascular medicine | |
| EP0034479A1 (en) | Cardiac monitoring system | |
| Nadas et al. | Phonocardiographic analysis of diastolic flow murmurs in secundum atrial septal defect and ventricular septal defect. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20180708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |