CN110200613A - A kind of blood flow blood pressure detector - Google Patents
A kind of blood flow blood pressure detector Download PDFInfo
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- CN110200613A CN110200613A CN201910277649.0A CN201910277649A CN110200613A CN 110200613 A CN110200613 A CN 110200613A CN 201910277649 A CN201910277649 A CN 201910277649A CN 110200613 A CN110200613 A CN 110200613A
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- 230000017531 blood circulation Effects 0.000 title claims abstract description 116
- 230000036772 blood pressure Effects 0.000 title claims abstract description 113
- 238000001514 detection method Methods 0.000 claims abstract description 65
- 238000012545 processing Methods 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims description 35
- 230000003321 amplification Effects 0.000 claims description 34
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 34
- 230000005611 electricity Effects 0.000 claims description 19
- 239000008280 blood Substances 0.000 claims description 9
- 210000004369 blood Anatomy 0.000 claims description 9
- 239000000523 sample Substances 0.000 claims description 8
- 238000002604 ultrasonography Methods 0.000 claims description 8
- 238000004088 simulation Methods 0.000 claims description 5
- 238000007872 degassing Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 abstract description 4
- 239000003990 capacitor Substances 0.000 description 97
- 239000004065 semiconductor Substances 0.000 description 26
- 238000010586 diagram Methods 0.000 description 14
- 230000035488 systolic blood pressure Effects 0.000 description 7
- 230000035487 diastolic blood pressure Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
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- 230000005540 biological transmission Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
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- 230000003862 health status Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000007493 shaping process Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02141—Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/06—Measuring blood flow
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
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- Biomedical Technology (AREA)
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- Veterinary Medicine (AREA)
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- Public Health (AREA)
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- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
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- Animal Behavior & Ethology (AREA)
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Abstract
The invention discloses a kind of blood flow blood pressure detectors, by setting ultrasonic blood flow detection module for emitting the first ultrasonic listening analog signal, and output ultrasonic wave detects digital signal to main control module after receiving the second ultrasonic listening analog signal of processing, ultrasonic listening digital signal obtains blood flow data to main control module based on the received, and setting blood pressure detecting module obtains blood pressure data and exports to main control module；It solves in the prior art when carrying out blood flow detection, detection work is carried out using special blood flow detection equipment, when carrying out blood pressure detecting, detection work is carried out using special blood pressure detecting equipment, this causes when carrying out blood flow and blood pressure detecting to same personnel to be measured, it needs replacing detection device or transfer detection site is detected, cause the technical problem that detection efficiency is low, equipment cost is high, functions of the equipments are single；Provide a kind of blood flow blood pressure detector multi-functional, overall cost is low, detection efficiency is high.
Description
Technical field
The present invention relates to medical treatment & health detection device technical fields, more particularly, to a kind of blood flow blood pressure detector.
Background technique
With the continuous development of science and technology, various medical treatment & health detection devices are the work of people all in development & production
And the detection of health status provides a great convenience, the weight of blood flow detection and blood pressure detecting as medical diagnosis on disease and physical health
Index is wanted, therefore, people need to carry out the detection of blood flow and blood pressure when carrying out disease treatment or physical examinations.
In the prior art, when carrying out blood flow detection, people carry out detection work using special blood flow detection equipment,
When carrying out blood pressure detecting, people carry out detection work using special blood pressure detecting equipment, this causes to same to be measured
When personnel carry out blood flow and blood pressure detecting, needs replacing detection device or transfer detection site is detected, cause detection effect
The technical problem that rate is low, equipment cost is high, functions of the equipments are single.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to provide a kind of blood flow blood pressure detector multi-functional, overall cost is low, detection efficiency is high.
The technical scheme adopted by the invention is that:
In a first aspect, the present invention provides a kind of blood flow blood pressure detector comprising:
Ultrasonic blood flow detection module for emitting the first ultrasonic listening analog signal, and receives processing described first
Ultrasonic listening analog signal output ultrasonic wave after the second ultrasonic listening analog signal that blood back reflection is formed detects
Digital signal；
Blood pressure detecting module, for obtaining and exporting blood pressure data；
Main control module handles the ultrasonic listening digital signal for receiving to obtain blood flow data, and for receiving
The blood pressure data.
Further, the ultrasonic blood flow detection module includes:
Supersonic sounding module for emitting the first ultrasonic listening analog signal, and receives first ultrasonic wave
Detection simulation signal passes through the second ultrasonic listening analog signal that blood back reflection is formed；
Blood flow signal shunt module, for received to the supersonic sounding module described respectively using 2 tunnel demodulated signals
Second ultrasonic listening analog signal carries out branch output processing；
Blood flow flows to processing module；For handling the ultrasonic listening of the blood flow signal shunt module branch output
The ultrasonic listening digital signal is exported after analog signal.
Further, the supersonic sounding module includes ultrasonic probe, the ultrasonic probe include ultrasonic wave generation circuit,
Ultrasonic wave receives resonance circuit and ultrasonic wave transmitting circuit；The ultrasonic wave receives the output end of resonance circuit and the blood flow is believed
The input terminal connection of number shunt module, the output end of the ultrasound wave generation circuit are defeated with the ultrasonic wave transmitting circuit respectively
Enter the input terminal connection at end, the blood flow signal shunt module.
Further, the blood flow signal shunt module includes the first frequency dividing circuit and the second frequency dividing circuit；The ultrasound
First output end of wave generation circuit is connect with the first input end of first frequency dividing circuit, and the ultrasonic wave receives resonance electricity
The output end on road is connect with the second input terminal of first frequency dividing circuit, the output end and the blood of first frequency dividing circuit
Stream flows to the first input end connection of processing module, the second output terminal of the ultrasound wave generation circuit and the second frequency dividing electricity
The first input end on road connects, and the ultrasonic wave receives the second input of the output end and second frequency dividing circuit of resonance circuit
End connection, the output end of second frequency dividing circuit are connect with the second input terminal that the blood flow flows to processing module.
Further, it includes the first blood flow flow direction processing submodule and the second blood flow flow direction that the blood flow, which flows to processing module,
Handle submodule；The first blood flow flow direction processing submodule includes the first filter amplification circuit and the first analog to digital conversion circuit,
The output end of first frequency dividing circuit is connect with the input terminal of first filter amplification circuit, the first filter and amplification electricity
The output end on road is connect with the input terminal of first analog to digital conversion circuit, the output end of first analog to digital conversion circuit and institute
State the input terminal connection of main control module；The second blood flow flow direction processing submodule includes the second filter amplification circuit and the second mould
Number conversion circuits, the output end of second frequency dividing circuit connect with the input terminal of second filter amplification circuit, and described the
The output end of two filter amplification circuits is connect with the input terminal of second analog to digital conversion circuit, second analog to digital conversion circuit
Output end connect with the input terminal of the main control module.
Further, the blood pressure detecting module includes:
Inflator module is inflated for controlling the blood flow blood pressure detector when blood pressure detecting；
Deflation module is deflated for controlling the blood flow blood pressure detector when blood pressure detecting；
Blood pressure data obtains module, for obtaining the blood pressure data；
The input terminal of the inflator module, the deflation module input terminal with the output end of the main control module connect
It connects, the output end that the blood pressure data obtains module is connect with the input terminal of the main control module.
Further, the inflator module includes inflator pump and ventilating control circuit, the ventilating control circuit respectively with
The inflator pump, main control module connection, the ventilating control circuit are controlled by the main control module with described for controlling
Inflator pump is inflated.
Further, the deflation module includes fast deflation module and slow play gas module；The output end of the main control module
It is connect with the input terminal of the fast deflation module, carries out Rapid degassing to control the blood flow blood pressure detector；The master control
The output end of module is connect with the input terminal of the slow play gas module, carries out slow play to control the blood flow blood pressure detector
Gas.
Further, the fast deflation module includes fast pressure-releasing control circuit and the first vent valve；The fast deflation control
First output end of circuit is connect with the first end of first vent valve, the second output terminal of the fast pressure-releasing control circuit with
The second end of first vent valve connects；The fast pressure-releasing control circuit includes that fast deflation control signal and overvoltage protection are put
Gas control terminal, the output end of the main control module deflate with the fast deflation control signal, the overvoltage protection control respectively
End connection；The slow play gas module includes slow pressure-releasing control circuit and the second vent valve；The output end of the main control module and institute
State the input terminal connection of slow pressure-releasing control circuit, the first output end of the slow pressure-releasing control circuit and second vent valve
First end connection, the second output terminal of the slow pressure-releasing control circuit are connect with the second end of second vent valve.
Further, it includes that pressure sensor and blood pressure data obtain circuit, the pressure that the blood pressure data, which obtains module,
The input terminal that the output end of force snesor and the blood pressure obtain circuit connect, the blood pressure data obtain circuit output end and
The input terminal of the main control module connects.
Further, the blood flow blood pressure detector further includes that pulse data obtains circuit, the pressure sensor
Output end is connect with the input terminal that the pulse data obtains circuit, the output end of the pulse data acquisition circuit and the master
Control the input terminal connection of module.
The beneficial effects of the present invention are:
A kind of blood flow blood pressure detector of the present invention the first is surpassed by setting ultrasonic blood flow detection module for emitting
Acoustic detection analog signal, and output ultrasonic wave detects digital signal to master after receiving the second ultrasonic listening analog signal of processing
Module is controlled, ultrasonic listening digital signal obtains blood flow data to main control module based on the received, and setting blood pressure detecting module obtains
Blood pressure data is simultaneously exported to main control module；It solves in the prior art when carrying out blood flow detection, using special blood flow detection
Equipment carries out detection work, when carrying out blood pressure detecting, carries out detection work using special blood pressure detecting equipment, this leads
It causes when carrying out blood flow and blood pressure detecting to same personnel to be measured, needs replacing detection device or transfer detection site is examined
It surveys, causes the technical problem that detection efficiency is low, equipment cost is high, functions of the equipments are single；It provides a kind of multi-functional, comprehensive
Close blood flow blood pressure detector at low cost, that detection efficiency is high.
Detailed description of the invention
Fig. 1 is an a kind of specific embodiment module frame chart of blood flow blood pressure detector of the present invention；
Fig. 2 is a specific embodiment module frame chart of ultrasonic blood flow detection module in the present invention；
Fig. 3 is a specific embodiment circuit diagram of ultrasonic wave generation circuit in the present invention；
Fig. 4 is a specific embodiment circuit diagram of ultrasonic wave transmitting circuit in the present invention；
Fig. 5 is the specific embodiment circuit diagram that ultrasonic wave receives resonance circuit in the present invention；
Fig. 6 is a specific embodiment circuit diagram of the first frequency dividing circuit in the present invention；
Fig. 7 is a specific embodiment circuit diagram of the second frequency dividing circuit in the present invention；
Fig. 8 is a specific embodiment circuit diagram of the first filter amplification circuit and the second filter amplification circuit in the present invention；
Fig. 9 is a specific embodiment circuit diagram of the first analog to digital conversion circuit in the present invention；
Figure 10 is a specific embodiment circuit diagram of the second analog to digital conversion circuit in the present invention；
Figure 11 is a specific embodiment circuit diagram of main control module in the present invention；
Figure 12 is a specific module frame chart of blood pressure detecting module in the present invention；
Figure 13 is the specific embodiment circuit diagram that blood pressure data obtains circuit in the present invention；
Figure 14 is a specific embodiment circuit diagram of pulse data acquisition in the present invention；
Figure 15 is a specific embodiment circuit diagram of ventilating control circuit in the present invention；
Figure 16 is a specific embodiment circuit diagram of fast pressure-releasing control circuit in the present invention；
Figure 17 is a specific embodiment circuit diagram of slow pressure-releasing control circuit in the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
As shown in Figure 1, a kind of blood flow blood pressure detector of the present invention comprising ultrasonic blood flow detection module, blood pressure inspection
Survey module and main control module；Wherein, the output end of ultrasonic blood flow detection module, blood pressure detecting module output end and master control
The input terminal of module connects, and ultrasonic blood flow detection module receives processing for emitting the first ultrasonic listening analog signal
First ultrasonic listening analog signal output ultrasonic wave after the second ultrasonic listening analog signal that blood back reflection is formed
Digital signal is detected to main control module, blood pressure detecting module is for obtaining blood pressure data and blood pressure data being transmitted to master control mould
Block, ultrasonic listening digital signal obtains blood flow data to main control module based on the received, solves and is carrying out blood in the prior art
When stream detection, detection work is carried out using special blood flow detection equipment, when carrying out blood pressure detecting, using special blood pressure
Detection device carries out detection work, this causes to need replacing inspection when carrying out blood flow and blood pressure detecting to same personnel to be measured
Measurement equipment or transfer detection site are detected, and the technology that detection efficiency is low, equipment cost is high, functions of the equipments are single is caused
Problem.
Specifically, each functional module is explained in detail individually below:
1, ultrasonic blood flow detection module
As shown in Fig. 2, ultrasonic blood flow detection module includes supersonic sounding module, blood flow signal shunt module and blood flow stream
To processing module；It, which emits the first ultrasonic listening analog signal and receive by being provided with supersonic sounding module, feeds back
Second ultrasonic listening analog signal transmission the second is surpassed to received to blood flow signal shunt module using 2 tunnel demodulated signals respectively
It is input to blood flow after the progress branch reception of acoustic detection analog signal and flows to processing module progress signal processing, the processing of blood flow flow direction
Output ultrasonic wave detects digital signal to main control module after module is handled received second ultrasonic listening analog signal.
In the present embodiment, supersonic sounding module is ultrasonic probe comprising ultrasonic wave generation circuit, ultrasonic wave receive resonance
Circuit and ultrasonic wave transmitting circuit, blood flow signal shunt module include the first frequency dividing circuit and the second frequency dividing circuit.Specifically,
Referring to Fig. 3, ultrasonic wave generation circuit includes 8MHz without source crystal oscillator Y1, the 9th resistance R9 to twelfth resistor R12, the 5th inductance
L5, the 11st capacitor R11, the 12nd capacitor C12, the first phase inverter U1 and the second phase inverter U2；Wherein twelfth resistor R12 is
Slide rheostat, X1 end of the 8MHz without source crystal oscillator Y1 respectively with one end of the 9th resistance R9, one end of the 12nd capacitor C12,
The input terminal of one phase inverter U1 connects, X2 end of the 8MHz without source crystal oscillator Y1 respectively with the output end of the first phase inverter U1, the
One end connection of the input terminal of two phase inverter U2, the other end of the 9th resistance R9, the 11st capacitor C11, the 11st capacitor C11's
The other end connect with the other end of the 12nd capacitor C12 after altogether, the output end of the second phase inverter U2 is ultrasonic wave generation circuit
The first output end, the output end of the second phase inverter U2 respectively with the input terminal of ultrasonic wave transmitting circuit, the first frequency dividing circuit
One end connection of first input end, the tenth resistance R10, the other end of the tenth resistance R10 are connect with one end of the 5th inductance L5, the
The other end second output terminal of wave generation circuit (i.e. ultrasonic) of five inductance L5 respectively with one end of eleventh resistor R11, the tenth
The first fixing end of two resistance R12 connects, and the other end of eleventh resistor R11 is connect with external 2V power supply, twelfth resistor R12
Sliding end, the 20th resistance R12 the second fixing end connection after altogether；It is defeated by the first output end of ultrasonic echography circuit
The 8.1MHZ signal of 8MHZ signal and second output terminal output out is actually the signal phase of second output terminal than first
The signal amplitude frequency of 90 degree of the phase lag signal of output end, practical two output ends is consistent, and 8.1MHZ is in order to distinguish two
The mark that the signal of a output end is made there are the difference of phase, by 90 degree of phase phase difference of 2 tunnel demodulated signals for the
One frequency dividing circuit and the second frequency dividing circuit carry out the reception of signal；Meanwhile it supplying ultrasonic wave transmitting circuit and launching outward ultrasonic wave
Detection simulation signal.Referring to Fig. 4, ultrasonic wave transmitting circuit includes the 9th capacitor C9, the tenth capacitor C10, the 8th resistance R8, the 4th
Inductance L4, the 4th triode Q4 and emitting ceramic chip；Wherein, the both ends of emitting ceramic chip connect with the interface of J1 and J2 respectively
It connects, one end (input terminal of i.e. ultrasonic wave transmitting circuit) of the 9th capacitor C9 is connect, the 9th with the output end of the second phase inverter U2
The other end of capacitor C9 is connect with one end of the base stage of the 4th triode Q4, the 8th resistance R8 respectively, and the 8th resistance R8's is another
External 2V power supply is accessed after connecting respectively with one end of one end of the tenth capacitor C10, the 4th inductance L4 in end, the tenth capacitor C10's
The other end is connect with the other end, the J1 interface of the collector of the 4th triode Q4, the 4th inductance L4 respectively, the 4th triode Q4's
Emitter connect with J2 interface after altogether, by passing through transmitting again after receiving the 8MHz signal source that ultrasonic wave generation circuit generates
Ceramic wafers emit the first ultrasonic listening analog signal outward.Referring to Fig. 5, it includes receiving pottery that ultrasonic wave, which receives resonance circuit,
Porcelain chip, the first resonance transformer T1, the first amplifier tube Q1, first capacitor C1 to the 4th capacitor C4, first resistor R1, the first electricity
Feel L1, the first output terminals A S1 and second output terminal AS2；Wherein, the first amplifier tube Q1 is the first triode Q1, and it is brilliant to receive ceramics
The both ends of piece are connect with the interface of J9A and J10A respectively, and the first input end of the first resonance transformer T1 is connect with J9A interface,
The second input terminal of first resonance transformer T1 is connect with J10A interface, the first output end of the first resonance transformer T1 respectively with
The base stage connection of one end of the 4th capacitor C4, the first triode Q1, the second output terminal of the first resonance transformer T1 is respectively with the
The other end of four capacitor C4, the first triode Q1 emitter connection after altogether, the collector of the first triode Q1 is respectively with the
One end connection of one end of one inductance L1, one end of first resistor R1, one end of first capacitor C1, the second capacitor C2, the first electricity
The other end of sense L1 accesses external 2V power supply after connecting respectively with one end of the other end of first resistor R1, third capacitor C3, the
The other end of three capacitor C3 is grounded, and the other end of first capacitor C1 accesses blood flow signal branch after connecting with the first output terminals A S1
Module, the other end of the second capacitor C2 accesses blood flow signal shunt module after connecting with second output terminal AS2, by receiving pottery
The second ultrasonic listening analog signal that porcelain wafer receipt is fed back is after the first triode Q1 amplification by the first output end
AS1, second output terminal AS2 are exported to blood flow signal shunt module.
Referring to Fig. 6, in the present embodiment, the first frequency dividing circuit include second resistance R2 to the 4th resistance R4, the 5th capacitor C5,
6th capacitor C6, the second inductance L2 and the second triode Q2；Wherein, one end (i.e. of the first frequency dividing circuit of the 4th resistance R4
One input terminal) it is connect with the output end of the second phase inverter U2 in ultrasonic wave generation circuit, the other end of the 4th resistance R4 and the
One end of six capacitor C6 connects, the other end of the 6th capacitor C6 base with one end of 3rd resistor R3, the second triode Q2 respectively
Pole connection, the emitter (i.e. the second input terminal of the first frequency dividing circuit) of the second triode Q2 respectively with the second inductance L2 one
End, ultrasonic wave receive the first output terminals A S1 connection of resonance circuit, and the other end of the second inductance L2 is grounded, 3rd resistor R3's
The other end is respectively and at the collector of the second triode Q2, one end of second resistance R2, one end of the 5th capacitor C5, blood flow flow direction
The first input end connection of module is managed, the other end of second resistance R2 is connect with external 2V power supply, the other end of the 5th capacitor C5
Ground connection, by the first output end for receiving 8MHz signal source and ultrasonic wave reception resonance circuit that ultrasonic wave generation circuit generates
Output to blood flow flows to processing module after the signal that AS1 is transmitted.Referring to Fig. 7, the second frequency dividing circuit includes the 5th resistance R5 to the
Seven resistance R7, the 7th capacitor C7, the 8th capacitor C8, third transistor Q3, third inductance L3 and third phase inverter U3；Wherein,
The input terminal of three phase inverter U3 is connect with the output end of the second phase inverter U2 in ultrasonic wave generation circuit, third phase inverter U3's
Output end is connect with one end of the 7th resistance R7, and the other end of the 7th resistance R7 is connect with one end of the 8th capacitor C8, the 8th electricity
The other end for holding C8 is connect with the base stage of one end of the 6th resistance R6, third transistor Q3 respectively, the transmitting of third transistor Q3
The second output terminal AS2 that pole receives resonance circuit with one end of third inductance L3, ultrasonic wave respectively is connect, and third inductance L3's is another
One end ground connection, the other end of the 6th resistance R6 respectively with the collector of third transistor Q3, one end of the 5th resistance R5, the 7th electricity
One end of appearance C7, blood flow flow to the second input terminal connection of processing module, and the other end of the 5th resistance R5 and external 2V power supply connect
It connects, the other end of the 7th capacitor C7 ground connection, by receiving 8MHz signal source that ultrasonic wave generation circuit generates and being accessed the
After the signal that three phase inverter U3 and the second output terminal AS2 for receiving ultrasonic wave reception resonance circuit are transmitted at output to blood flow flow direction
Manage module.
In the present embodiment, it includes at the first blood flow flow direction processing submodule and the second blood flow flow direction that blood flow, which flows to processing module,
Manage submodule；Wherein, the first blood flow flow direction processing submodule includes the first filter amplification circuit and the first analog to digital conversion circuit, the
Two blood flows flow direction processing submodule includes the second filter amplification circuit and the second analog to digital conversion circuit, the first filter amplification circuit packet
Include the first low-pass filter circuit, the first signal amplification circuit and the first high-pass filtering circuit, the second filter amplification circuit includes the
Two low-pass filter circuits, second signal amplifying circuit and the second high-pass filtering circuit.Specifically, referring to Fig. 8, the first low-pass filtering
Circuit includes: the 13rd capacitor C13 to the 17th capacitor C17, thirteenth resistor R13 to the 16th resistance R16, the 5th triode
Q5 and the first filtered switch chip U4；First signal amplification circuit includes: the 17th resistance R17 to the 19th resistance R19 and
One operational amplifier U5；First high-pass filtering circuit includes: the 18th capacitor C18, the 19th capacitor C19, the 20th resistance R20
To the 22nd resistance R22 and second operational amplifier U6；Second low-pass filter circuit includes: the 20th capacitor C20 to second
14 capacitor C24, the 23rd resistance R23 to the 25th resistance R25 and the second filtered switch chip U7；Second signal amplification
Circuit includes: the 26th resistance R26 to the 28th resistance R28 and third operational amplifier U8；Second high-pass filtering circuit
It include: the 20th capacitor C25, the 26th capacitor C26, the 29th resistance R29 to the 31st resistance R31 and the 4th operation
Amplifier U9；Wherein, the first filtered switch chip U4 and the second filtered switch chip U7 is TC4W66F chip, the first operation
Amplifier U5 to four-operational amplifier U9 is TL064 operational amplifier, and the tenth resistance R10 and the 20th resistance R20 are
Slide rheostat；One end (i.e. the input terminal of the first filter amplification circuit) of 13rd capacitor C13 is defeated with the first frequency dividing circuit
Outlet SI1 connection, for the second ultrasonic listening analog signal that the transmitting of received ultrasonic signal detection probe comes, the 13rd electricity
The other end for holding C13 is connect with the first fixing end of the tenth resistance R10, the second fixing end ground connection of the tenth resistance R10, the tenth electricity
Hinder R10 sliding end respectively with one end of eleventh resistor R11, one end of the 14th capacitor C14, the first filtered switch chip U4
Input terminal connection, eleventh resistor R11 the other end ground connection, the other end of the 14th capacitor C14 respectively with twelfth resistor
One end connection of one end of R12, the 15th capacitor C15, the other end of the 15th capacitor C15 is respectively with the 16th capacitor C16's
One end, one end of the 17th capacitor C17, the normal phase input end of the first operational amplifier U5, the 14th resistance R14 one end connect
It connects, the other end of the 16th capacitor C16 is connect with the output end of the first filtered switch chip U4, and the 14th resistance R14's is another
End ground connection, the other end of twelfth resistor R12 respectively with the other end of the 17th capacitor C17, the first operational amplifier U5 it is anti-
One end connection of phase input terminal, one end of the 15th resistance R15, the 16th resistance R16, another termination of the 15th resistance R15
Ground, the other end of the 16th resistance R16 connect with one end of the output end of the first operational amplifier U5, the 18th capacitor C18 respectively
It connects, the other end of the 18th capacitor C18 is inputted with the positive of one end of the 17th resistance R17, second operational amplifier U6 respectively
After holding connection, the other end of the 17th resistance R17 to connect with one end of the 18th resistance R18 altogether, the 18th resistance R18's is another
One end respectively with the inverting input terminal of second operational amplifier U6, one end of the 19th capacitor C19, the 19th resistance R19 one
End connection, the other end of the 19th resistance R19 respectively with the other end of the 19th capacitor C19, second operational amplifier U6 it is defeated
Outlet connection.Wherein, the enable end IN2 of the first filtered switch chip respectively with one end of thirteenth resistor R13, the 5th triode
The emitter of Q5 connects, and the base stage of the 5th triode Q5 is connect with main control module, the collector and external 5V of the 5th triode Q5
Power supply connection, the other end of thirteenth resistor R13 are connect with external -4.6V power supply, the first operational amplifier U5 and the second operation
The positive supply input terminal of amplifier U6 accesses 5V power supply, negative supply input terminal access -4.6V power supply.Second filter and amplification electricity
The circuit structure on road is substantially consistent with the circuit structure of the first filter amplification circuit, as shown in figure 8, but it should be noted that second
The enable end of filtered switch chip U7 passes through the 5th triode Q5 after can connecting with the enable end of the first filtered switch chip U4 again
It is connect with main control module；By setting the first filter amplification circuit and the second filter amplification circuit, by the first frequency dividing circuit and the
The signal that frequency-halving circuit transmits exports after being filtered amplification, ensure that effective, the reliability of follow-up signal processing.
As shown in Figure 9 and Figure 10, in the present embodiment, the first analog-to-digital conversion module and the second analog-to-digital conversion module are used respectively
Ultrasonic wave is converted into the 2 tunnel ultrasonic listening analog signals for exporting the first filter amplification circuit and the second filter amplification circuit
It is exported after detection digital signal；Specifically, the first analog-to-digital conversion module includes the 27th capacitor C27, the 20th referring to Fig. 9
Eight capacitor C28, the 32nd resistance R32 to the 38th resistance R38, first diode D1, the second diode D2, first are compared
Device U10 and the first modulus conversion chip U11；Wherein, first comparator U10 is LM393 comparator, the first modulus conversion chip
U11 is 74HC74 chip, and the output end of one end of the 27th capacitor C27 and the first filter amplification circuit (referring to Fig. 7, i.e., the
The output end U6 of two operational amplifiers) A1B connection, the other end of the 27th capacitor C27 is respectively with the 32nd resistance R32's
One end connection of one end, the 33rd resistance R33, the other end ground connection of the 32nd resistance R32, the 33rd resistance R33's
The other end connects with the inverting input terminal of the anode of first diode D1, the cathode of the second diode D2, first comparator U10 respectively
Connect, the cathode of first diode D1 connect with the anode of the second diode D2 after altogether, one end of the 34th resistance R34 and outer
Connect -4.6V power supply connection, the other end of the 34th resistance R34 respectively with one end of the 35th resistance R35, the 28th electricity
Hold the non-inverting input terminal connection of one end of C28, one end of the 36th resistance R36, first comparator U10, the 35th resistance
The other end of R35 is grounded, and the other end of the 28th capacitor C28 is respectively compared with the other end of the 36th resistance R36, first
The output end of device U10, one end of the 37th resistance R37, one end of the 38th resistance R38, the second modulus conversion chip U13
Data input pin D (referring to Fig.1 0), the first modulus conversion chip U11 reset terminalConnection, the 37th resistance R37's
The other end is connect with external 5V power supply, the clock signal of the other end of the 38th resistance R38 and the first modulus conversion chip U11
Input terminal CLK connection, the Q output of the first modulus conversion chip U11 are connect with main control module；Referring to Fig.1 0, the second modulus turns
Changing the mold block includes the 29th capacitor C29, the 30th capacitor C30, the 39th resistance R39 to the 46th resistance R46, third
Diode D3, the 4th diode D4, the second comparator U12 and the second modulus conversion chip U13；Wherein, wherein the second comparator
U12 is LM393 comparator, and the second modulus conversion chip U13 is 74HC74 chip, one end and second of the 29th capacitor C29
Output end (referring to Fig. 8, the i.e. output end of four-operational amplifier U9) A2B connection of filter amplification circuit, the 29th capacitor
The other end of C29 is connect with one end of one end of the 39th resistance R39, the 40th resistance R40 respectively, the 39th resistance
The other end of R39 is grounded, the other end of the 40th resistance R40 respectively with the anode of third diode D3, the 4th diode D4
The inverting input terminal connection of cathode, the second comparator U12, the cathode of third diode D3 are connect with the anode of the 4th diode D4
Afterwards altogether, one end of the 41st resistance R41 is connect with external -4.6V power supply, the other end of the 41st resistance R41 respectively with
One end of 42nd resistance R42, one end of the 30th capacitor C30, one end of the 43rd resistance R43, the second comparator U12
Non-inverting input terminal connection, the other end ground connection of the 42nd resistance R42, the other end of the 30th capacitor C30 is respectively with the 4th
The other end of 13 resistance R43, the output end of the second comparator U12, one end of the 44th resistance R44, the 45th resistance
One end of R45 connects, and the other end of the 44th resistance R44 is connect with external 5V power supply, the other end of the 45th resistance R45
Respectively with the data input pin D of the first modulus conversion chip U11 (referring to Fig. 9), one end of the 46th resistance R46, the second mould
The reset terminal of number conversion chip U13Connection, the other end of the 46th resistance R46 and the second modulus conversion chip U13's
Clock signal input terminal CLK connection, the Q output of the second modulus conversion chip U13 are connect with main control module.Wherein, the first ratio
It is connect with external 5V power supply compared with the positive supply input terminal of device U10 and the second comparator U12, negative supply input terminal is grounded respectively.
It is whole to be provided with the A2B ultrasonic listening analog signal progress waveform that the first analog-to-digital conversion module exports the second filter amplification circuit
Output is to main control module after shape and analog-to-digital conversion, the A1B ultrasound that the second analog-to-digital conversion module exports the first filter amplification circuit
Wave detection simulation signal exports after carrying out waveform shaping and analog-to-digital conversion to main control module.As shown in figure 11, main control module U14 packet
STM32F103R8T6 chip is included, the connection relationship of pin by receiving the first signal flow output sub-module as shown, pass
It passs the blood flow signal come backward and second signal flows to the forward blood flow signal that output sub-module transmitting comes, inspection can be got
The blood flow data information of survey.
2, blood pressure detecting module
As shown in figure 12, blood pressure detecting module includes that inflator module, deflation module and blood pressure data obtain in the present embodiment
Module；Wherein, the input terminal of inflator module, deflation module input terminal connect with the output end of main control module, blood pressure data
The input terminal of the output end and main control module that obtain module connects, and it includes pressure sensor and blood pressure number that blood pressure data, which obtains module,
According to circuit is obtained, when carrying out blood pressure detecting, main control module controls inflator module and then controls blood flow blood pressure detector and carries out
Inflation, likewise, main control module is deflated also by control deflation module and then control blood flow blood pressure detector.In addition,
In the present embodiment, it is additionally provided with pulse data and obtains circuit, the output end of pressure sensor and the pulse data obtain circuit
Input terminal connection, pulse data obtain circuit output end and main control module input terminal connect.
In the present embodiment, deflation module includes fast deflation module and slow play gas module, wherein fast deflation module includes putting fastly
Gas control circuit and the first vent valve；First output end of fast pressure-releasing control circuit is connect with the first end of the first vent valve, fastly
The second output terminal of pressure-releasing control circuit is connect with the second end of the first vent valve；Fast pressure-releasing control circuit includes fast control of deflating
Input terminal and overvoltage protection deflation control terminal, the output end of main control module are put with fast deflation control signal, overvoltage protection respectively
The connection of gas control terminal；Slow play gas module includes slow pressure-releasing control circuit and the second vent valve；The output end of main control module with it is described
The of the input terminal connection of slow pressure-releasing control circuit, the first output end of the slow pressure-releasing control circuit and second vent valve
One end connection, the second output terminal of the slow pressure-releasing control circuit are connect with the second end of second vent valve.
The present invention realizes that the basic principle thought of blood pressure detecting is as follows:
1, when carrying out systolic pressure detection:
Main control module control ventilating control circuit makes inflator pump start to inflate, until ultrasonic blood flow detection module will not
(or main control module does not receive the blood flow signal that probe transmitting comes), master control mould when detecting that blood flow signal is transferred to main control module
Block controls ventilating control circuit and closes inflator pump stopping inflation, and main control module controls fast pressure-releasing control circuit and closes, and controls slowly
Pressure-releasing control circuit, which is opened, carries out slow play gas, detects that the moment of blood flow signal passes pressure when being deflated to blood flow detection probe slowly
The data that sensor obtains, which obtain circuit transmission to main control module by blood pressure data, can be obtained systolic pressure data.
2, when carrying out diastolic pressure detection:
After completing systolic pressure test, main control module continues to control fast pressure-releasing control circuit work and is deflated fastly, up to
After the blood flow signal that ultrasonic blood flow detection module is transmitted to main control module tends towards stability, then the data that pressure sensor is obtained
Obtaining circuit transmission to main control module by blood pressure data can be obtained the data of diastolic pressure.
While carrying out systolic pressure detection or diastolic pressure detects, electricity is obtained by the pulse data in blood pressure detecting module
Pulse data is detected on road, and the pulse data that will test is transmitted to main control module.
The work of fast deflation module and slow play gas module is controlled by main control module, to realize under different conditions to blood
It presses detection device to carry out the deflation of friction speed, needs to solve blood pressure detector in the prior art by carrying out manually
Since control of deflating is not accurate when deflation carries out the measurement of blood pressure, so that blood pressure data be caused to detect inaccurate, benefit inconvenient for use
And it needs the testing staff with use experience just and can be carried out the technical issues of blood pressure detecting operates.
Specifically, it includes: the 47th resistance R47, the 4th that blood pressure data, which obtains circuit, as shown in figure 13, in the present embodiment
18 resistance R48, the 49th resistance R49, the 31st capacitor C31, the 32nd capacitor C32 and the 5th operational amplifier
U15；Wherein, the output end of the first end of the 47th resistance R47 and pressure sensor connects, and the of the 47th resistance R47
Two ends are connect with the first end of the 48th resistance R48, the non-inverting input terminal of the 5th operational amplifier U15 respectively, and the 48th
The second end of resistance R48 is connect with power ground, the inverting input terminal of the 5th operational amplifier U15 respectively with the 5th operational amplifier
The first end connection of the output end of U15, the 49th resistance R49, the second end of the 49th resistance R49 is respectively with the 31st
The input terminal connection of the first end of capacitor C31, the first end of the 32nd capacitor C32, main control module；It will be pressed by foregoing circuit
The pressure data information that force snesor is obtained when carrying out systolic pressure and diastolic pressure is tested is transmitted to main control module to obtain survey
Try the systolic pressure and diastolic pressure of object.
Referring to Fig.1 4, pulse data acquisition includes: the 50th resistance R50 to the 56th resistance in the present embodiment
R56, the 33rd capacitor C33, the 34th capacitor C34, the 35th capacitor C35, the 6th operational amplifier U16, the 7th fortune
Calculate amplifier U17, the first magnetic bead L6 and external reference voltage signal input part P1_GND；Wherein, the of the 33rd capacitor C33
The output end of one end and pressure sensor connection, the second end of the 33rd capacitor C33 respectively with the 50th resistance R50 first
End, the 6th operational amplifier U16 non-inverting input terminal connection, the second end of the 50th resistance R50 respectively with the 51st resistance
The first end of R51, the P1_GND connection of external reference voltage signal input part, the second end of the 51st resistance R51 is respectively with
The inverting input terminal of six operational amplifier U16, the connection of the first end of the 52nd resistance R52, the second of the 52nd resistance R52
End is connect with the first end of the output end of the 6th operational amplifier U16, the 53rd resistance R53 respectively, the 53rd resistance R53
Second end connect respectively with the first end of the 54th resistance R54, the first end of the 34th capacitor C34, the 54th electricity
The second end of resistance R54 is connect with the non-inverting input terminal of the 7th operational amplifier U17, the second end difference of the 34th capacitor C34
With the first end of the inverting input terminal of the 7th operational amplifier U17, the output end of the 7th operational amplifier U17, the first magnetic bead L6
Connection, the second end of the first magnetic bead L6 are connect with the first end of the 55th resistance R55, the second end of the 55th resistance R55
It is connect respectively with the first end of the 56th resistance R56, the first end of the 35th capacitor C35, the input terminal of main control module, the
The second end of 56 resistance R56 is connect with second end, the power ground of the 35th capacitor C35 respectively；It will by foregoing circuit
Pressure sensor pressure data information of acquisition when carrying out pulse test is transmitted to main control module to obtain test object
Pulse data.
Referring to Fig.1 5, in the present embodiment ventilating control circuit include: the 57th resistance R57, the 58th resistance R58,
59th resistance R59, the 36th capacitor C36, the 37th capacitor C37, the 5th diode D5, the 6th triode Q6,
One metal-oxide-semiconductor Q7, the second metal-oxide-semiconductor Q8；Wherein, the 37th capacitor C37 is polar capacitor, and the 6th triode Q6 is NPN triode,
First metal-oxide-semiconductor Q7 and the second metal-oxide-semiconductor Q8 is PMOS tube, the first end of the 57th resistance R57 and the inflation control of main control module
NIBP_charge connection in end processed, the second end of the 57th resistance R57 are connect with the base stage of the 6th triode Q6, the six or three pole
The emitter of pipe Q6 is connect with the first end of the 58th resistance R58, the first end of the 59th resistance R59 respectively, and the six or three
The collector of pole pipe Q6 is connect with external 5V power supply, and the second end of the 59th resistance R59 is connect with power ground, the 58th electricity
The second end of resistance R58 is connect with the grid of the first metal-oxide-semiconductor Q7, and the source electrode of the first metal-oxide-semiconductor Q7 connects in the drain electrode of the second metal-oxide-semiconductor Q8
It connects, the inflation enable end NIBP_EN connection of the grid and main control module of the second metal-oxide-semiconductor Q8, the source electrode and power supply of the second metal-oxide-semiconductor Q8
The drain electrode of ground connection, the first metal-oxide-semiconductor Q7 connects with the anode of the first input end PUMP_K of inflator pump, the 5th diode D5 respectively
Connect, the cathode of the 5th diode D5 respectively with the second input terminal PUMP_A of inflator pump, the 36th capacitor C36 first end,
Positive, the external 5V power supply of 37th capacitor C37 connects, the second end of the 36th capacitor C36, the 37th capacitor C37
Cathode be separately connected power ground；When carrying out systolic pressure detection, safe and effective can be controlled by foregoing circuit main control module
Device processed is inflated.
Referring to Fig.1 6, fast pressure-releasing control circuit includes: the 61st resistance R61 of the 60th resistance R60, the in the present embodiment
62 resistance R62, the 7th triode Q9, third metal-oxide-semiconductor Q10, the 4th metal-oxide-semiconductor Q11, the electricity of the 6th diode D6 and the 38th
Hold C38；Wherein, the 38th capacitor C38 is polar capacitor, and the first end of the 60th resistance R60 is fast pressure-releasing control circuit
Control terminal NIBP_def_fast, the first end of the 60th resistance R60 are connect with main control module, the second end of the 60th resistance R60
It is connect with the base stage of the 7th triode Q9, the collector of the 7th triode Q9 is connect with external+5VD power supply, the 7th triode Q9
Emitter connect respectively with the grid of the first end of the 61st resistance R61, third metal-oxide-semiconductor Q10, the 61st resistance R61
Second end connect with power ground, the source electrode of third metal-oxide-semiconductor Q10 is connect with the drain electrode of the 4th metal-oxide-semiconductor Q11, the 4th metal-oxide-semiconductor Q11
Grid be fast pressure-releasing control circuit enable end, the grid of the 4th metal-oxide-semiconductor Q11 respectively with main control module, the 62nd resistance
The first end of R62 connects, and the second end of the 62nd resistance R62 is connect with external+5VD power supply, the source electrode of the 4th metal-oxide-semiconductor Q11
It is connect with power ground, the first end N_ with the anode of the 6th diode D6, the first vent valve respectively that drains of third metal-oxide-semiconductor Q10
F_K connection, the cathode of the 6th diode D6 respectively with the second end of the first vent valve, the 38th capacitor C38 it is positive, external
The connection of+5VD power supply, the cathode of the 38th capacitor C38 are connect with power ground.Referring to Fig.1 1, a kind of blood pressure detecting in the present invention
The main control module of the pressure-releasing control circuit of device includes STM32F103R8T6 chip U14, with over-voltage control output end
NIBP_EN is connect with the second PMOS tube in fast pressure-releasing control circuit, fast deflation control output end NIBP_def_fast with put fastly
The first end of the 60th resistance R60 in gas control circuit connects, and passes through above-mentioned fast pressure-releasing control circuit, blood pressure detector
The as fast deflation status in booting, the i.e. fast deflation control output end NIBP_def_fast of main control module and over-voltage control are defeated
Outlet NIBP_EN exports lasting low level signal, and the 6th diode D6, third metal-oxide-semiconductor Q10 and the 4th metal-oxide-semiconductor Q11 are led
Logical, the first vent valve is to open, when device is inflated, the fast deflation control output end NIBP_def_fast of main control module
Exporting lasting high level signal with over-voltage control output end NIBP_EN closes the first vent valve, in the pressure of device
It rises, to carry out blood pressure detecting.But when the pressure value that main control module obtains is more than that the first threshold of setting or blood pressure detecting terminate
When, the fast deflation control output end NIBP_def_fast and over-voltage control output end NIBP_EN of main control module export lasting
Low level signal so that the pressure value of device drops to preset second threshold in safe range, avoid personnel to be measured by
Wound or blood pressure detecting equipment are impaired；In blood pressure detecting ending phase, by sending, continuous signal control is fast to deflate main control module
Module carries out Rapid degassing, the time needed for saving blood pressure detecting, improves the working efficiency of equipment.
Referring to Fig.1 7, slow pressure-releasing control circuit includes: the 63rd resistance R63, the 64th resistance in the present embodiment
R64, the 65th resistance R65, the 39th capacitor C39, the 40th capacitor C40, the 8th triode Q12, the 5th metal-oxide-semiconductor Q13
With the 7th diode D7；Wherein, the 40th capacitor C40 is polar capacitor, and the first end of the 63rd resistance R63 is slow play gas control
The control terminal NIBP_def_slow of circuit processed, the first end of the 63rd resistance R63 are connect with main control module, the 63rd electricity
The second end of resistance R63 is connect with the first end of the 64th resistance R64, the base stage of the 8th triode Q12 respectively, the 64th electricity
The second end of resistance R64 is connect with the emitter of the 8th triode Q12, power ground respectively, the collector difference of the 8th triode Q12
It is connect with the grid of the first end of the 65th resistance R65, the 5th metal-oxide-semiconductor Q13, the second end difference of the 65th resistance R65
It is connect with the first end of the 39th capacitor C39, external+5VD power supply, the second end and power ground of the 39th capacitor C39 connects
Connect, the source electrode of the 5th metal-oxide-semiconductor Q13 is connect with power ground, the 5th metal-oxide-semiconductor Q13 drain electrode respectively with the anode of the 7th diode D7,
The first end N_S_K connection of second vent valve, the cathode of the 7th diode D7 respectively with the first end of the 40th capacitor C40, outer
The connection of+5VD power supply is connect, the second end of the 40th capacitor C40 is connect with power ground.Referring to Fig.1 1, main control module has slow play gas
Control output end NIBP_def_slow is connect with the first end of the 63rd resistance R63 in slow pressure-releasing control circuit, blood pressure inspection
It surveys device and is in slow play gaseity in booting, is i.e. the slow play gas control output end NIBP_def_slow output of main control module is held
Continuous high level signal, so that the 8th triode Q12, the 5th metal-oxide-semiconductor Q13 are connected, the second vent valve is opened, and device carries out slow play
Gas；When device is inflated, the slow play gas control output end NIBP_def_slow of main control module exports lasting low level letter
Number, so that the second vent valve is closed, and when carrying out blood pressure detecting, the slow play gas control output end NIBP_def_ of main control module
Slow output discontinuity, high level pulse signal in short-term the second vent valve is opened so that device carries out discontinuity, short
When slow play gas, to measure the blood pressure data of personnel to be measured, by discontinuity, in short-term it is slow deflation can accurately measure
The blood pressure data of personnel to be measured out is avoided and is manually deflated since the problem of operating measured blood pressure data is not smart enough
Really.
It is to be illustrated to preferable implementation of the invention, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (11)
1. a kind of blood flow blood pressure detector characterized by comprising
Ultrasonic blood flow detection module for emitting the first ultrasonic listening analog signal, and receives processing first ultrasound
Wave detection simulation signal output ultrasonic wave detection number after the second ultrasonic listening analog signal that blood back reflection is formed
Signal；
Blood pressure detecting module, for obtaining and exporting blood pressure data；
Main control module handles the ultrasonic listening digital signal for receiving to obtain blood flow data, and described for receiving
Blood pressure data.
2. blood flow blood pressure detector according to claim 1, which is characterized in that the ultrasonic blood flow detection module packet
It includes:
Supersonic sounding module for emitting the first ultrasonic listening analog signal, and receives first ultrasonic listening
Analog signal passes through the second ultrasonic listening analog signal that blood back reflection is formed；
Blood flow signal shunt module, for utilizing 2 tunnel demodulated signals respectively received to the supersonic sounding module described second
Ultrasonic listening analog signal carries out branch output processing；
Blood flow flows to processing module；For handling the ultrasonic listening simulation of the blood flow signal shunt module branch output
The ultrasonic listening digital signal is exported after signal.
3. blood flow blood pressure detector according to claim 2, which is characterized in that the supersonic sounding module includes ultrasound
Probe, the ultrasonic probe include ultrasonic wave generation circuit, ultrasonic wave reception resonance circuit and ultrasonic wave transmitting circuit；It is described super
The output end of acoustic receiver resonance circuit is connect with the input terminal of the blood flow signal shunt module, the ultrasound wave generation circuit
Output end connect respectively with the input terminal of the input terminal of the ultrasonic wave transmitting circuit, the blood flow signal shunt module.
4. blood flow blood pressure detector according to claim 3, which is characterized in that the blood flow signal shunt module includes
First frequency dividing circuit and the second frequency dividing circuit；The first output end and first frequency dividing circuit of the ultrasound wave generation circuit
Second input terminal of first input end connection, output end and first frequency dividing circuit that the ultrasonic wave receives resonance circuit connects
It connects, the output end of first frequency dividing circuit is connect with the first input end that the blood flow flows to processing module, the ultrasonic wave
The second output terminal of generation circuit is connect with the first input end of second frequency dividing circuit, and the ultrasonic wave receives resonance circuit
Output end connect with the second input terminal of second frequency dividing circuit, the output end of second frequency dividing circuit and the blood flow
Flow to the second input terminal connection of processing module.
5. blood flow blood pressure detector according to claim 4, which is characterized in that the blood flow flows to processing module and includes
First blood flow flow direction processing submodule and the second blood flow flow direction processing submodule；The first blood flow flow direction handles submodule and includes
First filter amplification circuit and the first analog to digital conversion circuit, the output end of first frequency dividing circuit and first filter and amplification
The input terminal of circuit connects, and the input terminal of the output end of first filter amplification circuit and first analog to digital conversion circuit connects
It connects, the output end of first analog to digital conversion circuit is connect with the input terminal of the main control module；At the second blood flow flow direction
Manage submodule include the second filter amplification circuit and the second analog to digital conversion circuit, the output end of second frequency dividing circuit with it is described
The input terminal of second filter amplification circuit connects, the output end of second filter amplification circuit and second analog-to-digital conversion electricity
The input terminal on road connects, and the output end of second analog to digital conversion circuit is connect with the input terminal of the main control module.
6. blood flow blood pressure detector according to any one of claims 1 to 5, which is characterized in that the blood pressure detecting mould
Block includes:
Inflator module is inflated for controlling the blood flow blood pressure detector when blood pressure detecting；
Deflation module is deflated for controlling the blood flow blood pressure detector when blood pressure detecting；
Blood pressure data obtains module, for obtaining the blood pressure data；
The input terminal of the inflator module, the deflation module input terminal connect with the output end of the main control module, institute
The output end for stating blood pressure data acquisition module is connect with the input terminal of the main control module.
7. blood flow blood pressure detector according to claim 6, which is characterized in that the inflator module include inflator pump and
Ventilating control circuit, the ventilating control circuit are connect with the inflator pump, the main control module respectively, the ventilating control electricity
Road is controlled by the main control module to be inflated for controlling the inflator pump.
8. blood flow blood pressure detector according to claim 7, which is characterized in that the deflation module includes fast deflation mould
Block and slow play gas module；The output end of the main control module is connect with the input terminal of the fast deflation module, to control the blood
It flows blood pressure detector and carries out Rapid degassing；The output end of the main control module is connect with the input terminal of the slow play gas module,
Slow play gas is carried out to control the blood flow blood pressure detector.
9. blood flow blood pressure detector according to claim 8, which is characterized in that the fast deflation module includes fast deflates
Control circuit and the first vent valve；The first end of first output end of the fast pressure-releasing control circuit and first vent valve connects
It connects, the second output terminal of the fast pressure-releasing control circuit is connect with the second end of first vent valve；The fast deflation control
Circuit includes fast deflation control signal and overvoltage protection deflation control terminal, the output end of the main control module respectively with it is described fast
Deflation control signal, overvoltage protection deflation control terminal connection；The slow play gas module include slow pressure-releasing control circuit and
Second vent valve；The output end of the main control module is connect with the input terminal of the slow pressure-releasing control circuit, the slow play gas control
First output end of circuit processed is connect with the first end of second vent valve, the second output terminal of the slow pressure-releasing control circuit
It is connect with the second end of second vent valve.
10. blood flow blood pressure detector according to claim 6, which is characterized in that the blood pressure data obtains module packet
It includes pressure sensor and blood pressure data obtains circuit, the output end of the pressure sensor and the blood pressure obtain the input of circuit
End connection, the output end that the blood pressure data obtains circuit are connect with the input terminal of the main control module.
11. blood flow blood pressure detector according to claim 10, which is characterized in that the blood flow blood pressure detector is also
Circuit is obtained including pulse data, the input terminal that the output end of the pressure sensor and the pulse data obtain circuit connects
It connects, the output end that the pulse data obtains circuit is connect with the input terminal of the main control module.
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