CN1037319C - Pulse condition apparatus - Google Patents
Pulse condition apparatus Download PDFInfo
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- CN1037319C CN1037319C CN92113134A CN92113134A CN1037319C CN 1037319 C CN1037319 C CN 1037319C CN 92113134 A CN92113134 A CN 92113134A CN 92113134 A CN92113134 A CN 92113134A CN 1037319 C CN1037319 C CN 1037319C
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- amplifier
- circuit
- resistance
- photoelectric sensor
- inverting
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Abstract
The present invention relates to a pulse manifestation apparatus which belongs to an apparatus of traditional Chinese medicine diagnosing diseases. The present invention is composed of a combined type pulse taking probe head 1, a pressure display circuit 2, a pressure regulating device 3, an automatic balancing circuit 4, a voltage amplifier 5, an attenuation circuit 6, a wave filtering circuit 7, a buffer amplification stage 8, a power amplifier 9, a recorder 10 and a power supply 11. The present invention is characterized in that the combined type pulse taking probe head is composed of a photoelectric sensor 12 and a pressure sensor 13 which are connected to a mechanical structure in a rigidity mode. In order to solve the problem that the direct current voltage of a direct current amplifier is larger than 2 orders of magnitude than pulse manifestation signals, the present invention is also additionally provided with the automatic balancing circuit. The present invention has good consistency during taking pulse manifestation, and has high precision. The present invention can eliminate errors brought by different detecting objects and artificial apparatus operation.
Description
Electropulsograph belongs to the instrument of tcm diagnosis disease.
The pick off of existing electropulsograph generally all is a strain gauge pressure sensor, for obtaining the pulse signal of high-resolution, very little (about the Φ 5mm) that the contact of pressure transducer will be done.When getting arteries and veins, the contact position of contact and blood vessel is just very crucial, and the very difficult unanimity that guarantees in position of at every turn getting arteries and veins so detected signal conformance is just very poor, also just more can't have been extracted the left, center, right pulse signal of same arteries and veins.So this electropulsograph does not have practical value clinically.The transducer that adopts such as ZL86107766 " Chinese medicine pulse checkout gear " is exactly a pressure transducer.Pressure transducer only can detect average pulse signal and feeling the pulse force value, and can not distinguish the influence of various component to pulse condition, especially can not reflect the bending vibration that the radial artery pipe exists, so also just can not truly collect the full detail of pulse condition comprehensively.
When the objective of the invention is to design the pulse signal of the same people's same position of a kind of each detection, concordance will be got well, and can accurately distinguish and extract the electropulsograph of left, center, right pulse signal again.
The present invention comprises pressure display circuit, pressure-regulating device, voltage amplifier, attenuator circuit, filter circuit, class buffer amplifier, power amplifier, monitor, power supply.It is characterized in that it also includes combined type and gets arteries and veins probe, automatic balancing circuit, combined type is got the arteries and veins probe and is made up of photoelectric sensor and pressure transducer, and photoelectric sensor is carried out rigid the connection on frame for movement with pressure transducer.Pressure transducer is mainly used in the pressure of adjusting control photoelectric sensor and human body wrist and keeps suitable, what the probe of pressure transducer just needn't be done like this is very little, because of it does not contact with human body, also extract pulse signal without it, but extract pulse signal with photoelectric sensor, highly sensitive because of photoelectric sensor, and can average, so can select the larger area contact probe head for use, be easy to grasp for getting arteries and veins.Photoelectric sensor can also adopt matrix type structure, takes scan-type to receive pulse signal simultaneously, no matter be taking pulse lightly, moderately and heavily like this, still about in pulse signal all be easy to extraction.
Adopt photoelectric sensor correspondingly to bring new problem again, when photoelectric sensor is worked, because the bright and clean degree of different measurand skin has very big difference, so the absorption to infrared light is also just different, cause the changing operate-point of phototriode of receiving circuit very big, and pulse signal is to be superimposed upon on this DC voltage, and with the small-signal of two orders of magnitude of DC voltage difference, what we needed is the distortionless pulse signal that amplifies through direct current amplifier.If this pulse signal is directly amplified through direct current amplifier,, lose amplification owing to DC voltage change very conference makes the direct current amplifier output stage be operated in saturated or cut-off state.This pulse signal can not adopt capacitor-coupled to amplify again, because can lose the direct current composition of pulse signal like that, makes the pulse signal distortion that is exaggerated.Increase automatic balancing circuit so the present invention designs, well solved the problem of amplifying pulse signal without distortion.
Good effect of the present invention: when adopting the present invention to diagnose disease such as apoplexy, high conformity, the accuracy height can be got rid of the error that measurand is different and the manual operation instrument brings fully.After pulse signal extracts, also can show simultaneously.
Fig. 1 is a whole functional-block diagram of the present invention, Fig. 2 one is the photoelectric sensor circuit structural representation of embodiment one, Fig. 3 is the electrical block diagram of the automatic balancing circuit of embodiment one, Fig. 4 is the photoelectric sensor of embodiment three and the structural representation of automatic balancing circuit, Fig. 5 is the receiving circuit structural representation in the photoelectric sensor of embodiment two, and Fig. 6 is the mechanical connection relation of photoelectric sensor and pressure transducer among the embodiment one and the frame for movement sketch map of adjusting pressure transducer pressure.
Embodiment one: present embodiment is got arteries and veins probe 1, pressure display circuit 2, pressure-regulating device 3, automatic balancing circuit 4, voltage amplifier 5, attenuator circuit 6, filter circuit 7, class buffer amplifier 8, power amplifier 9, monitor 10, power supply 11 by combined type and is formed.Combined type is got arteries and veins probe 1 and is made up of photoelectric sensor 12, pressure transducer 13.Photoelectric sensor 12 is as Fig. 2, and the radiating circuit that it is composed in series by far infrared transmitting tube D1, D2, D3, resistance R 1 and served as by the receiving circuit that far infrared receiving tube T1, T2, T3, resistance R 2 are formed, pressure transducer 13 are served as by piezoquartz.Photoelectric sensor 12 is carried out rigid the connection on frame for movement with pressure transducer 13, and photoelectric sensor 12 is connected in the below of pressure transducer 13.
Pressure-regulating device 3 is as Fig. 6, it by base 25, column 26, lateral frame 27, stop spiral 28, shell 16, pressure regulate pedestal 15, pressure adjusting screw 14, adjusting handle 23, go up lower spring cup 17,20, spring 19, spacer pin 18,21, spacing slideway 22, pressure transducer 13, photoelectric sensor 12 are formed up and down.But the high and low position of two pick offs of lateral frame 27 coarse adjustment is to adapt to the human needs of different thicknesses wrist.Adjusting handle 23 can make the relative pedestal rotation of screw rod, and the last lower spring of drive moves up and down.By lower spring cup pressure transducer and photoelectric sensor are moved up and down, when photoelectric sensor is pressed onto people's wrist, by the pressure of the fine-tuning photoelectric sensor of adjusting handle to the human body wrist.Show by measuring pressure by pressure display unit simultaneously, when pressure is suitable, get pulse signal by photoelectric sensor.
Technical spirit of the present invention is to get exactly pulse condition and amplifies pulse signal without distortion.Owing to adopted the organic assembling of pressure transducer and photoelectric sensor, solved a difficult problem of getting pulse signal, amplify pulse signal without distortion and finish by automatic balancing circuit 4.Automatic balancing circuit such as Fig. 3, it is made up of inverting amplifier, anti-phase integral amplifier, difference amplifier.Inverting amplifier is made up of integrated transporting discharging A1, resistance R 3, R4, R5, R6, and its gain is 1.Anti-phase integral amplifier is made up of integrated transporting discharging A2, resistance R 7, R8, R9, R10, R11, R12, potentiometer W1, capacitor C 1, and gain also is 1, and time constant is 5-10 second (the pulse signal cycle is about 1 second).Difference amplifier is made up of integrated transporting discharging A3, resistance R 13, R14, R15, R16.The inverting input of anti-phase integral amplifier and inverting amplifier also connects the outfan U0 of photoelectric sensor receiving circuit.The in-phase input end of the output termination difference amplifier of anti-phase integral amplifier, the inverting input of the output termination difference amplifier of inverting amplifier.During work behind the DC voltage U0 and pulse signal paraphase of inverting amplifier A1 with input (amplification is 1), export the inverting input of difference amplifier A3 to, after the dc voltage average value paraphase of anti-phase integral amplifier A2 with input (amplification is 1), output to the in-phase input end of difference amplifier A3.Because the time constant of pulse signal is littler than the time constant of integration amplifier, so the pulse signal of A2 outfan is zero.Because pulse signal is compared with DC voltage and is differed two orders of magnitude, so the DC voltage of A2 output equates substantially with the A1 output dc voltage, and A3 only amplifies difference mode signal, so the output signal after the A3 amplification, only contained differential mode, and common-mode signal has been suppressed.Reached purpose with the undistorted amplification of pulse signal.
Embodiment two: the difference of present embodiment and embodiment one is the circuit structure of photoelectric sensor 12.The infrared light radiating circuit of present embodiment is identical with embodiment one, and different is the infrared light receiving circuit, its circuit structure such as Fig. 5, and it carries out the matrix connection by 60 phototriode T4-T63, and every road outfan is connected in series a load resistance R again and forms.This kind receiving circuit can take the form of matrix-scanning to extract pulse signal, and its accuracy height, precision are also higher.
Embodiment three: the difference of present embodiment and embodiment one is the circuit structure of photoelectric sensor 12 and automatic balancing circuit 4, its physical circuit such as Fig. 4.It is characterized in that the radiating circuit of automatic balancing circuit 4 and photoelectric sensor 12 and receiving circuit carried out closed loop feedback and be connected, the infrared light radiating circuit is made up of luminous tube D4, D5, D6, resistance R 17, R18, R19, control stream audion T64, colelctor electrode, the emitter stage of D4, D5, D6, R17 and control stream audion T64 are connected in series, and the base stage of T64 connects the outfan of automatic balancing circuit.The infrared light receiving circuit is made up of audion T65, T66, T67, resistance R 20.Automatic balancing circuit is made up of anti-phase integral amplifier, inverting amplifier, and anti-phase integral amplifier is made up of integrated transporting discharging A4, resistance R 21, R22, R23, capacitor C 2.Its inverting input connects the outfan of infrared receiving circuit.Inverting amplifier is made up of integrated transporting discharging A5, resistance R 24, R25, R26.The inverting input of inverting amplifier connects the outfan of anti-phase integral amplifier, and the outfan of inverting amplifier connects the base stage of control stream audion T64 through R19.During work, the light that receives as phototriode is strong excessively, and its operating current increases, and the DC voltage of output becomes negative value, departs from balance zero point.This become minus DC voltage after integral amplifier amplifies, become on the occasion of, after inverting amplifier amplifies, become negative value again again, this negative voltage reduces audion T64 electric current, then the light intensity of light emitting diode emission has just weakened.The light that makes phototriode receive also weakens, and operating current reduces, and output dc voltage returns to null value.The light that receives as phototriode weakens, and also can make output dc voltage depart from balance zero point, and its control procedure is opposite with said process.Finally still reach balance zero point.So just reached the purpose of automatic control output dc voltage, the back level can be finished the task of amplifying pulse signal effectively because of adopting direct current amplifier.
Claims (4)
1. electropulsograph, it includes pressure display circuit (2), pressure-regulating device (3), voltage amplifier circuit (5), attenuator circuit (6), filter circuit (7), class buffer amplifier (8), power amplifier (9), monitor (10), power supply (11) composition, it is characterized in that it also includes combined type and gets arteries and veins probe (1), automatic balancing circuit (4), the compound arteries and veins probe (1) of getting is made up of photoelectric sensor (12), pressure transducer (13), and photoelectric sensor (12) is carried out rigid the connection on frame for movement with pressure transducer (13).
2. electropulsograph according to claim 1 is characterized in that automatic balancing circuit (4) is made up of inverting amplifier, anti-phase integral amplifier, difference amplifier, and inverting amplifier is by integrated transporting discharging (A
1), resistance (R
3, R
4, R
5, R
6) form, gain is 1; Anti-phase integral amplifier is by integrated transporting discharging (A
2), resistance (R
7, R
8, R
9, R
10, R
11, R
12), potentiometer (W
1), electric capacity (C
1) form, time constant is 5-10 second, gain is 1; Difference amplifier is by integrated transporting discharging (A
3), resistance (R
13, R
14, R
15, R
16) form; The inverting input of anti-phase integral amplifier and inverting amplifier also connects the receiving circuit outfan of photoelectric sensor; The in-phase input end of the output termination difference amplifier of anti-phase integral amplifier, the inverting input of the output termination difference amplifier of inverting amplifier.
3. electropulsograph according to claim 1 is characterized in that photoelectric sensor (12) is by 60 phototriode (T
4One T
63) carrying out the matrix connection, every road load resistance of serial connection (R) is formed the infrared light receiving circuit.
4. electropulsograph according to claim 1 is characterized in that the radiating circuit of automatic balancing circuit (4) and photoelectric sensor (12) and receiving circuit carried out closed loop feedback and be connected, and the infrared light radiating circuit is by luminous tube (D
4, D
5, D
6), resistance (R
17, R
18, R
19), control stream audion T
64Form luminous tube (D
4, D
5, D
6), resistance (R
17) and control stream audion (T
64) colelctor electrode, emitter stage be connected in series control stream audion (T
64) base stage connect the outfan of automatic balancing circuit; The infrared light receiving circuit is by audion (T
65, T
66, T
67), resistance ((R
20) form; Automatic balancing circuit is made up of anti-phase integral amplifier, inverting amplifier, and anti-phase integral amplifier is by integrated transporting discharging (A
4), resistance (R
21, R
22, R
23), electric capacity (C
2) form, its inverting input connects the outfan of infrared receiving circuit, and inverting amplifier is by integrated transporting discharging (A
5), resistance (R
24, R
25, R
26) form, the inverting input of inverting amplifier connects the outfan of anti-phase integral amplifier, the output termination control stream audion (T of inverting amplifier
64) base stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92113134A CN1037319C (en) | 1992-11-13 | 1992-11-13 | Pulse condition apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92113134A CN1037319C (en) | 1992-11-13 | 1992-11-13 | Pulse condition apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1086986A CN1086986A (en) | 1994-05-25 |
| CN1037319C true CN1037319C (en) | 1998-02-11 |
Family
ID=4946256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92113134A Expired - Fee Related CN1037319C (en) | 1992-11-13 | 1992-11-13 | Pulse condition apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1037319C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427030C (en) * | 2006-02-24 | 2008-10-22 | 刘福水 | Digital TCM stent-type pulse condition collecting system and pulse condition treating diagnosing method |
| CN100506146C (en) * | 2007-08-21 | 2009-07-01 | 中国科学院计算技术研究所 | Testing device for pulse condition and using method thereof |
| CN101978930B (en) * | 2010-12-01 | 2012-08-15 | 岑澔 | Person-concerned dot matrix type adaptive pulse condition detection device |
| CN102106725B (en) * | 2011-03-02 | 2013-03-27 | 哈尔滨工业大学 | Traditional Chinese medical pulse condition sensor merging photoelectricity and pressure |
| CN102506918A (en) * | 2011-09-30 | 2012-06-20 | 上海交通大学 | Probe pressing device and pressing method for photoelectric detection system |
| CN104248425A (en) * | 2014-09-29 | 2014-12-31 | 哈尔滨市华宇医用电子仪器有限公司 | Traditional Chinese medicine pulse diagnosis instrument |
| CN105662368B (en) * | 2016-03-04 | 2019-10-25 | 北京中科芯健医疗科技有限公司 | Pulse wave spectrum sensor, pulse wave spectrum diagnosis and therapy system and health service platform |
| CN106923789A (en) * | 2016-12-20 | 2017-07-07 | 北京芯创敏特科技有限公司 | A kind of pulse condition diagnostic device of accurate simulation TCM pulse diagnosis process |
| CN110477896B (en) * | 2019-08-08 | 2022-08-30 | 上海掌门科技有限公司 | Pulse measuring device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86107766A (en) * | 1986-11-12 | 1988-05-25 | 上海医疗器械研究所 | The Chinese medicine pulse checkout gear |
| CN87211253U (en) * | 1987-10-06 | 1988-06-08 | 上海市长海医院 | Micro-computer monitering system for sphygmogram hemodynamics |
-
1992
- 1992-11-13 CN CN92113134A patent/CN1037319C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86107766A (en) * | 1986-11-12 | 1988-05-25 | 上海医疗器械研究所 | The Chinese medicine pulse checkout gear |
| CN87211253U (en) * | 1987-10-06 | 1988-06-08 | 上海市长海医院 | Micro-computer monitering system for sphygmogram hemodynamics |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1086986A (en) | 1994-05-25 |
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|---|---|---|---|
| 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 | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |