CN102048528B - Pulse detector with high interference resistance - Google Patents
Pulse detector with high interference resistance Download PDFInfo
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- CN102048528B CN102048528B CN 200910213318 CN200910213318A CN102048528B CN 102048528 B CN102048528 B CN 102048528B CN 200910213318 CN200910213318 CN 200910213318 CN 200910213318 A CN200910213318 A CN 200910213318A CN 102048528 B CN102048528 B CN 102048528B
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Abstract
The invention relates to a pulse detector with high interference resistance. The pulse detector with high interference resistance comprises two sensors in an inverted series connection mode, wherein a certain interval is maintained between the two sensors by utilizing a high-electricity and vibration insulation degree structure; the induction surface of one main sensor is provided with multiple probes which are arranged at preset intervals; the multiple probes transmit the pulse signals which are independently detected to the induction surface of the main sensor; the pulse signals received by the induction surface of the main sensor are superposed by the signals detected by each probe; the pulse signals induced by the other auxiliary sensor in the inverted series connection mode are relatively weak because of the insulation action of the high-electricity and vibration insulation degree structure; and other interference signals induced by the two sensors with the same physical structure have the same strength and the opposite directions, thereby obtaining the pulse signals with basically counteracted interference, high signal-to-noise ratio, stability, reliability and insensitive positions after superposition. A reliable 24-hour pulse real-time monitoring system which can be actually applied in daily life can be established by utilizing the pulse detector with high interference resistance.
Description
Technical field
The present invention relates to a kind of high anti-interference pulse detector that can monitoring human vital sign.
Background technology
Determining people's health status by surveying pulse, is one of basic diagnosis method of doctor, such as the rhythm of the heart, and pulse condition and blood pressure etc.This is that pulse and life are closely bound up because blood circulation is the basic biosystem of human body.
The medical finger diagnosis of feeling the pulse in traditional, doctor's personal experience is obviously depended in this operation, is difficult to guarantee concordance, therefore this diagnostic method is very subjective, lacks rigorous science.So although pulse condition is extremely important to diagnosing, doctors also can only point the situation of being felt with them, describe qualitatively pulse condition, provide fuzzy diagnosis.
Along with the development of technology, existing pulse detector can be evaluated human pulse more scrupulously, but due to these instrument volumes more greatly, high, expensive, the complicated operation of not Portable belt, and instrument cost, generally be only applicable to be placed in hospital and use.Can't be applied to daily, the Real-Time Monitoring of various human pulse.Particularly existing pulse detector is due to the defective of sonde configuration, must accurately adjust the position of sensor in use, just can detect beating of pulse, once in test process, probe positions slightly has movement mistake survey, wrong report will occur, and this pulse detector sensitivity is low, this just requires the personnel of certain profession basis to operate, and uses inconvenient.
On the other hand, human pulse is very weak signal, and has the environmental disturbances such as various vibrations, electromagnetism in daily life, uses existing pulse detector, is difficult to obtain high s/n ratio, stable pulse signal.Application number: CN03805049.8, application publication number: CN1638693A, Granted publication number: CN100335004C, name are called: the Chinese patent of pulse diagnostic system discloses a kind of vein diagnostic equipment, the detecting head group that comprises a plurality of interrelated, side direction series arrangement, wherein each detecting head all be set up with the dried arteries of human body limb near skin contact; Each detecting head comprises the pressure transducer that arranges sensing arteries pulse pressure, and be placed in the pressure transducer driving prelum that powers on, be used for applying external force by pressure transducer in the process of sensing pulse pressure, to pass skin, arteries exerted pressure.The disclosed technical scheme of this patent because the vein diagnostic equipment must accurately be aimed at the arteries position in when test and just can be detected beat pulse, so has the defective that sensitivity is low, interference free performance is poor.Be specially:
The defective of the vein diagnostic equipment of this patent is as follows:
1) anti-interference is poor:
A) each detecting head only has single pressure sensor (master reference (3,31,32) that is equivalent to us), there is no the added anti-phase jamproof pressure transducer (aiding sensors (5 of this patent (we), 51,52)), can not offset interference;
B) being placed in the pressure transducer driving prelum that powers on, is machine-electric formula dynamic pressurized equipment, can increase extra machinery-electromagnetic interference.Particularly when increasing the probe number, this interference direct ratio increases.
2) due to the vein diagnostic equipment of this patent both without noise trap, also introduce self-interference, so this system sensitivity is lower.
3) complex structure, circuit is loaded down with trivial details, and active prelum power consumption is large, and cost is high, is difficult to carry out.
There is patient and the sub-health population of several hundred million hypertension, diabetes, dyslipidemia, fat overweight in the whole world according to statistics.The noninfectiouss such as annual apoplexy, myocardial infarction, heart failure are the major causes of death that accounts for more than 3/4ths, and wherein cardiovascular disease accounts for the first place.In fact, if can carry out effectively pulse, the Real-Time Monitoring of 24 hours, in time find the trend of subhealth state and acute attack, make the patient obtain timely early treatment, the state of an illness of most Patients with Cardiovascular/Cerebrovascular Diseases can early be alleviated.And early stage active, automatic alarm before acute attack can significantly lower the dead probability of cardiovascular and cerebrovascular vessel morbidity.Therefore be badly in need of a kind ofly can carrying out effectively human pulse, reliably, the system of the Real-Time Monitoring of 24 hours.
Summary of the invention
The technical problem to be solved in the present invention is, must accurately aim at the arteries position for existing pulse detector in when test and just can detect beat pulse, sensitivity is low, interference free performance is poor defective, a kind of high anti-interference pulse detector with a plurality of probes is provided.
The present invention solves this technical problem the technical scheme that adopts: construct a kind of high anti-interference pulse detector, comprise the identical sensor of two electric anti-phase series connection.the sensitive surface of first master reference is provided with a plurality of probes of space preset distance, the pulse signal that described a plurality of probe will detect separately is passed to the sensitive surface of described master reference, and the pulse signal that described first main induction surface receives is the superposition of the signal that transmits of each probe, keep at a certain distance away with master reference and be arranged on, guaranteeing has good vibration with master reference, the pulse signal that the sensitive surface of second aiding sensors of electrical isolation receives is very weak, but various other vibrations of sensing, it is basic identical that the environmental disturbances such as electromagnetism and master reference are sensed, the sensor identical due to this physical electric performance of two is anti-phase series connection on electric, so compare with the signal that only uses single master reference to obtain, obtain be pulse signal slightly a little less than, and the high-quality pulse signal of the high s/n ratio that various interference disappear substantially.
In the anti-interference pulse detector of height of the present invention, described a plurality of probe is by matrix or directly be attached to the sensitive surface of described master reference, and the sensitive surface of aiding sensors is arranged on and main induction surface maintenance certain intervals, has on the escapement of vibration, electrical isolation function.
In the anti-interference pulse detector of height of the present invention, described sensor is pressure transducer, and described probe is protrusion; Described matrix is the thin slice of being made by the flexibility or rigidity material, and described protrusion is arranged on upper surface and/or the lower surface of described matrix.And the sensitive surface of aiding sensors is arranged on and the surperficial escapement that keeps high-isolation of main induction, and this escapement can be the free space that the edge support is arranged, or various nonconducting vibration-absorptive material.
In pulse detector of the present invention, described master/auxiliary sensor group comprises following at least a or multiple alternative sensor group:
Ultrasonic signal sensor group optionally comprises a supersonic generator, or
The heat sensitive sensor group optionally comprises a heat source generator; Or
The infrared sensor group optionally comprises an infrared light supply; Or
Electromagnetic wave signal sensor group optionally comprises an electromagnetic wave generator; Or
NMR signal sensor group optionally comprises a nuclear magnetic resonance, NMR generator; Or
X-optical signal sensor group optionally comprises an X-optical generator.
Implement the present invention, have following beneficial effect:
Owing to being provided with a plurality of probes on the anti-interference pulse detector of height, pulse signal can be delivered to the master reference sensitive surface as long as wherein there is a probe to be in the arteries position, thereby the master reference shift in position is very little on the impact of result of detection, and reliability is high; And when a plurality of probes are in the arteries position, the pulse signal that each probe obtains can be on the master reference sensitive surface superposition, thereby highly sensitive; Should also have another to have the aiding sensors that disturbs the elimination function by the anti-interference pulse detector of height in addition, the signal magnitude that various interfering signals are responded on the identical sensor of two physical electrical functions is identical, opposite direction has been eliminated interfering signal well.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in accompanying drawing:
Figure 1A is the front view of high anti-interference pulse detector according to an embodiment of the invention;
Figure 1B is the top view of Figure 1A;
Fig. 1 C is the right view of Figure 1A;
Fig. 2 A is the front view of high according to an embodiment of the invention anti-interference pulse detector assembly;
Fig. 2 B is the top view of Fig. 2 A;
Fig. 2 C is the right view of Fig. 2 A.
The specific embodiment
The anti-interference pulse monitoring device of height of the present invention can be responded to the one dimension of human body artery, two-dimentional pulse fluctuation pressure, and can effectively reduce other interfering signal.
According to one embodiment of the present of invention, high anti-interference pulse monitoring device comprises the aiding sensors of at least one many probe master reference and a relative isolation.The output of each high anti-interference pulse detector is the voltage signal of master reference and the anti-phase series connection of aiding sensors.High anti-interference pulse detector is any human body that contacts such as wrist strap, arm band, pectoral girdle, the bottom bands of trouser legs, mattress, medicated cushion, is fixed near the device at position tremulous pulse.
Each probe feeling of independence is answered arterial pressure, pulse signal superposition on master reference that the probe dot matrix that a plurality of probes form detects; And the reverse stack of the same interference that the aiding sensors of the interference of sensing on master reference and differential concatenation is sensed is offset, and forms high s/n ratio, reliable and stable pulse pressure signal
Figure 1A-1C is the structural representation according to the anti-interference pulse detector of single height of the embodiment of the present invention.Figure 1A is front view; Figure 1B is the top view of Figure 1A; Fig. 1 C is the right view of Figure 1A.as shown in Figure 1A-Fig. 1 C, in the present embodiment, high anti-interference pulse detector is provided with 3 probes 1, probe 1 is connected on matrix 2, matrix 2 contacts with the sensitive surface 301 of master reference 3, with probe detection to signal be delivered to the sensitive surface 301 of master reference 3, master reference 3 and aiding sensors 5 are installed together by escapement 4, escapement 4 has guaranteed the sensitive surface 501 of aiding sensors 5, 502 and probe 1 have good electric, the vibration isolation, output signal after master reference and aiding sensors differential concatenation is by drawing line 6 outputs.
Fig. 2 A-2C is that wherein, Fig. 2 A is front view according to the structural representation of the high anti-interference pulse detector assembly that comprises two high anti-interference pulse detectors of the embodiment of the present invention; Fig. 2 B is the top view of Fig. 2 A; Fig. 2 C is the right view of Fig. 2 A.As shown in Fig. 2 A-2C, in the present embodiment, the dried pulse detector assembly of high resistance is provided with 12 probes 1, probe 1 is connected on matrix 2, matrix 2 contacts with the sensitive surface of the first primary pressure sensor 31, the second primary pressure sensor 32, with probe detection to signal be delivered to the sensitive surface of master reference group; For 31 times escapement 41 in the first primary pressure sensor, it is the first aiding sensors 51 again, for 32 times escapement 42 in the second primary pressure sensor, that the signal of the second aiding sensors 52, the first primary pressure sensor 31 and the first aiding sensors 51 differential concatenations is by 61 outputs of lead-out wire group again; The signal of the second primary pressure sensor 32 and the second aiding sensors 52 differential concatenations is by 62 outputs of lead-out wire group.Although the matrix 2 in Fig. 2 A-2C is matrixes of a monoblock, as selection, also can be divided into two independent matrixes: the first matrix and the second matrix are attached to respectively the sensitive surface of the first primary pressure sensor 31, the second primary pressure sensor 32.
As can be seen from Figure, space one segment distance between probe forms dot matrix.The benefit that arranges like this is: each probe is relatively independent ground detectable signal simultaneously, and on the sensitive surface of shared master reference superposition, obtain stronger output signal.Although be provided with the probe of 3 single-row arrangements shown in Figure 1A on pulse detector, but those skilled in the art should know, also more probes can be set, and it is arranged in the dot matrix of multiple lines and multiple rows, even can be arranged in the dot matrix of circle, ellipse etc. or other shape.In like manner, as similar embodiment, in the high anti-interference pulse detector assembly that is consisted of by at least two high anti-interference pulse detectors, also can arrange on each high anti-interference pulse detector than 12 shown in Fig. 2 A probes that probe is more or less, and it is arranged in the dot matrix of multiple lines and multiple rows, even can be arranged in the dot matrix of circle, ellipse etc. or other shape.Distance between probe arranges can keep each probe that relatively independent motion significantly can be arranged, and can have again higher density to be as the criterion.
In the embodiment shown in Figure 1A and Fig. 2 A, probe 1 is arranged on the upper surface 21 of matrix 2.In other embodiments of the invention, probe 1 can be arranged on the lower surface 22 of matrix 2, perhaps can probe 1 all be set at upper surface 21 and the lower surface 22 of matrix 2.
The thin slice that matrix 2 is normally made by the flexibility or rigidity material.Probe 1 shape can be the projection that the various difform hard objects such as the symmetrical or asymmetrical polygon such as arc, semicircle, rectangle, hexagon or soft object consist of, be connected to or be connected to any method the sensitive surface of pressure sensor unit by sheet type matrix (for example thin film) with viscose glue, form the probe dot matrix.In some embodiments of the invention, probe 1 is the hard protrusion, such as metal bump things such as rustless steel, aluminium alloy, titanium alloys, and Buddhist nun you, duroplasts protrusions such as ABS, lucite etc., it is bonded on described matrix 2 by binding agent.In other embodiments, probe 1 is soft protrusion, such as: the flexible plastics such as silica gel, rubber perhaps consist of protrusion by inflation or hollow balloon etc.Protrusion can adopt identical material one-body molded with matrix, and perhaps protrusion can be bonded on the matrix of identical or different material by binding agent.Should be appreciated that the above-mentioned material of mentioning all should be health, harmless material.
In another embodiment of the present invention, probe is set directly at the sensitive surface of master reference, for example sticks on the sensitive surface of sensor.Or with other method that can reliablely and stablely probe be arranged on the sensitive surface of master reference.
Although what adopt in embodiments of the invention is pressure transducer, it will be appreciated by those skilled in the art that and to adopt the master/auxiliary sensor group of other type to implement the present invention.For example adopt ultrasonic signal sensor group, optionally comprise a supersonic generator, and have the sonac of more than one ultrasound probe; Or the heat sensitive sensor group, optionally comprise a heat source generator, and have the heat sensitive sensor of more than one thermosensitive probe; Or the infrared sensor group, optionally comprise an infrared light supply, and have the infrared sensor of more than one infrared probe; Or electromagnetic wave signal sensor group, optionally comprise an electromagnetic wave generator, and have the electromagnetic transducer of more than one electromagnetic probe; Or NMR signal sensor group, optionally comprise a nuclear magnetic resonance, NMR generator, and have the nmr sensor of more than one nmr probe; Or X-optical signal sensor group, optionally comprise an X-optical generator, and have the X-ray sensor of more than one X-light probe.
In each embodiment of the present invention, high anti-interference pulse detector comprises by the hard object of more than one adjacent arc, semicircle or the similar shape of arranging along arteries two-way (longitudinal and transverse) single or double or the probe dot matrix that soft object consists of, and is integrated in the master reference surface.Single face probe dot matrix contacts with human body surface or sensor surface.The two-sided of two-sided probe dot matrix contacts with human body surface and master reference surface respectively.And the interfering signal that keeps the aiding sensors of relative isolation to sense with master reference, and on master reference, same interfering signal inversely adds, and cancels out each other.More than onely should rearrange high anti-interference pulse detector assembly by the anti-interference pulse detector of height two-way (longitudinal and transverse).When surveying pulse pressure, due to several probes being arranged on each master reference, each probe can be responded to pulsation, greatly improves the detectivity of the anti-interference pulse detector assembly of whole height; And due to several probes being arranged, the anti-interference pulse detector assembly of this height is insensitive to the position, can effectively respond to pulsation in relatively large scope.Further several high anti-interference pulse detectors are the unidirectional or integrated use of bi-directional arrangement, can obtain better effect: higher detectivity, stronger induced signal.
Utilize the anti-interference pulse detector of height of the present invention, can obtain high s/n ratio, reliable and stable, the insensitive pulse signal in position can be set up practical round-the-clock pulse real-time monitoring system.Make vital sign/health status of user obtain constantly concern, can accomplish in time to find the subhealth state problem when routine testing, and early treatment; During acute attack the very first time automatically or initiative alarming, the danger of the sudden death of effectively avoiding falling ill.Fact proved most of Patients with Cardiovascular/Cerebrovascular Diseases, if trend that can the early discovery morbidity is taken measures, can avoid to a great extent the acute attack of serious harm to occur.And early stage automatic, the initiative alarming before acute attack can significantly lower the probability of cardiovascular and cerebrovascular vessel morbidity sudden death.
Claims (9)
1. one kind high anti-interference pulse detector, is characterized in that, comprises a master reference (3,31,32) and an aiding sensors (5,51,52); Height is electric by having, the escapement (4,41,42) of vibration isolation is combined into one for described master reference and aiding sensors; The signal output part differential concatenation of master reference and aiding sensors.
2. the anti-interference pulse detector of height according to claim 1, is characterized in that, described master/auxiliary sensor is pressure transducer; A plurality of probes (1) are attached to the sensitive surface (301) of described master reference by matrix (2).
3. the anti-interference pulse detector of height according to claim 2, is characterized in that, described probe (1) is protrusion; Described matrix (2) is the thin slice of being made by the flexibility or rigidity material, and described protrusion is arranged on upper surface (21) and/or the lower surface (22) of described matrix (2).
4. according to claim 1 or 3 anti-interference pulse detectors of described height, it is characterized in that, described height is electric, the escapement (4 of vibration isolation, 41,42) be the free space that frame is arranged, or nonconducting any vibration isolation material, or the combinative structure of free space and vibration isolation material, the upper surface of escapement (421) is close to master reference (32) lower surface and is installed.
5. the anti-interference pulse detector of height according to claim 1, is characterized in that, described master reference (3,31,32) and aiding sensors (5,51,52) comprise following at least a or multiple alternative sensor group:
Ultrasonic signal sensor group comprises a supersonic generator, or
The heat sensitive sensor group comprises a heat source generator; Or
The infrared sensing group comprises an infrared light supply; Or
Electromagnetic wave signal sensor group comprises an electromagnetic wave generator; Or
NMR signal sensor group comprises a nuclear magnetic resonance, NMR generator; Or
X-optical signal sensor group comprises an X-optical generator.
6. the anti-interference pulse detector of height according to claim 1, is characterized in that, described master reference and aiding sensors, and its function, properity can exchange.
7. the anti-interference pulse detector of height according to claim 1, is characterized in that, described master reference and aiding sensors adopt the combination of a plurality of master reference combinations or the combination of a plurality of aiding sensors or a plurality of master reference and aiding sensors.
8. one kind high anti-interference pulse monitoring device, is characterized in that, comprises at least two anti-interference pulse detectors of height as described in any one in claim 1 to 7; Wherein, at least two anti-interference pulse detectors of described height are arranged in the array of single file or multirow, make when near the arteries that the anti-interference pulse monitoring device of described height is placed on human body limb cadre, have at least one probe to contact with human body limb cadre's arteries place skin at least in two anti-interference pulse detectors of described height.
9. the anti-interference pulse detector of height according to claim 1, is characterized in that, except the collection that is applied in pulse signal, can also be applied in any occasion that needs to detect vibration.
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| CN 200910213318 CN102048528B (en) | 2009-11-02 | 2009-11-02 | Pulse detector with high interference resistance |
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| CN105395179A (en) * | 2015-12-18 | 2016-03-16 | 安徽寰智信息科技股份有限公司 | Health monitoring assembly |
| CN105411545A (en) * | 2015-12-18 | 2016-03-23 | 安徽寰智信息科技股份有限公司 | Health behavior guiding system |
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|---|---|---|---|---|
| CN1419895A (en) * | 2001-11-16 | 2003-05-28 | 精工电子有限公司 | Piezoelectric sensor, method for mfg. same, and pulse wave detector |
| CN1638693A (en) * | 2002-03-02 | 2005-07-13 | 河·H·黄 | Pulse diagnostic system |
| JP3857519B2 (en) * | 2000-11-30 | 2006-12-13 | セイコーインスツル株式会社 | Pulse detector |
| CN200983720Y (en) * | 2006-12-21 | 2007-11-28 | 珠海微明生物医学测量技术有限公司 | Sensor device |
| CN201101527Y (en) * | 2007-11-15 | 2008-08-20 | 王富生 | Sphygmometer |
| WO2009030068A1 (en) * | 2007-09-04 | 2009-03-12 | Yang, Tzu-Lin | Fabric with separate inductive area |
| CN201248702Y (en) * | 2008-06-24 | 2009-06-03 | 中国医学科学院生物医学工程研究所 | Flexible pulse detecting probe based on pressure sensing array |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3857519B2 (en) * | 2000-11-30 | 2006-12-13 | セイコーインスツル株式会社 | Pulse detector |
| CN1419895A (en) * | 2001-11-16 | 2003-05-28 | 精工电子有限公司 | Piezoelectric sensor, method for mfg. same, and pulse wave detector |
| CN1638693A (en) * | 2002-03-02 | 2005-07-13 | 河·H·黄 | Pulse diagnostic system |
| CN200983720Y (en) * | 2006-12-21 | 2007-11-28 | 珠海微明生物医学测量技术有限公司 | Sensor device |
| WO2009030068A1 (en) * | 2007-09-04 | 2009-03-12 | Yang, Tzu-Lin | Fabric with separate inductive area |
| CN201101527Y (en) * | 2007-11-15 | 2008-08-20 | 王富生 | Sphygmometer |
| CN201248702Y (en) * | 2008-06-24 | 2009-06-03 | 中国医学科学院生物医学工程研究所 | Flexible pulse detecting probe based on pressure sensing array |
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