CN109589134A - Ultrasonic radiography auxiliary monitoring device - Google Patents
Ultrasonic radiography auxiliary monitoring device Download PDFInfo
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- CN109589134A CN109589134A CN201910083435.XA CN201910083435A CN109589134A CN 109589134 A CN109589134 A CN 109589134A CN 201910083435 A CN201910083435 A CN 201910083435A CN 109589134 A CN109589134 A CN 109589134A
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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
- A61B8/54—Control of the diagnostic device
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/56—Details of data transmission or power supply
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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
- A61B8/58—Testing, adjusting or calibrating the diagnostic device
Abstract
The invention discloses an ultrasonic radiography auxiliary monitoring device, which comprises a signal frequency acquisition circuit, a window push-pull circuit and a frequency selection output circuit, wherein the signal frequency acquisition circuit selects a signal frequency collector J1 with the model of SJ-ADC and a signal frequency collector J2 to respectively acquire the signal frequencies of two end points of a signal receiving channel of a control terminal in the ultrasonic radiography auxiliary monitoring device, the window push-pull circuit adopts an operational amplifier AR2, an operational amplifier AR3, a capacitor C7 and a capacitor C8 to form a window circuit to carry out differential processing on signals, simultaneously, a triode Q1, a triode Q3, a diode D1 and a diode D2 are used to form a push-pull circuit to improve the switching speed of the circuit, a triode Q4 and a triode Q5 are used to feed back signals into the window circuit, and finally the frequency selection output circuit adopts a resistor R16, a resistor R18 and a capacitor C11, a capacitor C13 to form a double T frequency selection circuit to screen single frequency signals, and detecting the signal frequencies of two end points of a signal receiving channel of a control terminal in the ultrasonic radiography auxiliary monitoring device in real time, and calibrating the signals.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to a kind of ultrasonic contrast auxiliary monitoring device.
Background technique
Ultrasonic contrast is also known as acoustic contrast, is to enhance rear scattered echoes using contrast agent, hence it is evident that improves ultrasound diagnosis
The technology of resolving power, sensibility and specificity.With the improvement of instrument performance and the appearance ultrasonic contrast of novel acoustic contrast agent
Can effectively enhance the two-dimensional ultrasound image and blood flow doppler signal of the parenchymatous organs such as cardiac muscle, liver, kidney, brain, reflection and
Observe the blood perfusion situation of normal tissue and pathological tissues, it has also become one of ultrasound diagnosis is particularly significant and up-and-coming
Developing direction, someone regard it as the third time revolution after two-dimensional ultrasound, Doppler and color flow angiography.
Ultrasonic contrast auxiliary monitoring device is the important link of contrast-enhanced ultrasound technique, improves ultrasonic contrast equipment work effect
Rate, wherein ultrasonic contrast auxiliary monitoring device receives the accuracy for the signal that ultrasonic contrast equipment is transmitted through signal transmission passage,
Directly determine the using effect of ultrasonic contrast ancillary equipment, it, can in order to further increase ultrasonic contrast ancillary equipment control precision
It is realized in a manner of through thermal compensation signal, overcomes the decaying situation of signal in the transmission.
Summary of the invention
For above situation, for the defect for overcoming the prior art, purpose of the present invention is to provide ultrasonic contrast auxiliary to supervise
Control device, have be skillfully constructed, the characteristic of human oriented design, controlling terminal connects in real-time detection ultrasonic contrast auxiliary monitoring device
The two-end-point signal frequency for receiving signal path is converted into controlling terminal in ultrasonic contrast auxiliary monitoring device and connects to signal calibration
The thermal compensation signal for receiving signal further increases ultrasonic contrast ancillary equipment control precision.
Its technical solution solved is that ultrasonic contrast auxiliary monitoring device, including signal frequency Acquisition Circuit, window are recommended
Circuit and frequency-selecting output circuit, the signal frequency Acquisition Circuit select the signal frequency collector J1 of model SJ-ADC, letter
Number frequency collection device J2 acquires the two-end-point signal that controlling terminal in ultrasonic contrast auxiliary monitoring device receives signal path respectively
Frequency, the window push-pull circuit is with transport and placing device AR2, transport and placing device AR3 and capacitor C7, capacitor C8 composition window circuit to signal
Differential processing, while opening for circuit is improved with triode Q1 ~ triode Q3 and diode D1, diode D2 composition push-pull circuit
Speed is closed, and is shaken with window circuit output signal in triode Q4, triode Q5 feedback signal to window circuit, is adjusted
Width, the last frequency-selecting output circuit is with resistance R16 ~ resistance R18 and capacitor C11 ~ capacitor C13 group T frequency selection circuit sieve in pairs
Single-frequency signals output is selected, that is to say the compensation letter for receiving signal for controlling terminal in ultrasonic contrast auxiliary monitoring device
Number；
The window push-pull circuit includes transport and placing device AR2, and the one of the homophase input terminating resistor R10 of transport and placing device AR2, capacitor C7
End, one end of the anti-phase input terminating resistor R7 of transport and placing device AR2, resistance R8, one end of another terminating resistor R9 of resistance R8 and
The emitter of triode Q5 and the inverting input terminal of transport and placing device AR3, the other end ground connection of resistance R9, the same phase of transport and placing device AR3
Input one end of terminating resistor R11, capacitor C8, the output termination output end of transport and placing device AR2 of transport and placing device AR3, triode Q4
Collector, the cathode of diode D1, the anode of diode D2 and resistance R10, capacitor C7, resistance R11, capacitor C8 the other end with
And one end of resistance R15, capacitor C9, the other end ground connection of resistance R15, capacitor C9, the base stage of triode Q4 connect triode Q1's
Collector, one end of resistance R13, one end of resistance R12 and resistance R7 the other end and power supply+5V, the base stage of triode Q1
The other end of connecting resistance R12 and the anode of diode D1, the emitter of triode Q1 connect the base stage and triode Q2 of triode Q3
Emitter, the base stage of triode Q2 connects the cathode of diode D2, the other end and three of the collector connecting resistance R13 of triode Q3
The base stage of the emitter of pole pipe Q4, triode Q5, the emitter of triode Q3 connect triode Q5 collector and resistance R14 one
End, the other end of resistance R14 and the collector of triode Q2 connect one end and the ground terminal of capacitor C10, another termination of capacitor C10
Ground.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1. defeated to signal frequency Acquisition Circuit with transport and placing device AR2, transport and placing device AR3 and capacitor C7, capacitor C8 composition window circuit
The differential processing of two paths of signals out, stabilization signal quiescent point, while utilization triode Q1 ~ triode Q3 and diode D1,
Diode D2 forms the switching speed that push-pull circuit improves circuit, and with the input of signal, diode D1, diode D2 are by signal
It is divided into sine wave and negative string wave two parts, triode Q1, triode Q2 is made continuously to replace conducting, is week with a signal amplitude
Phase can not only improve the switching speed of circuit, and triode Q3 is amplifying triode, and amplified signal power can improve signal
Load capacity；
2. for further stabilization signal amplitude range, in triode Q4, triode Q5 feedback signal to window circuit, when
When signal amplitude is excessive, triode Q5 is connected at this time, in feedback signal to transport and placing device AR2, transport and placing device AR3 inverting input terminal, drop
Low window circuit output signal amplitude, when signal amplitude is too small, triode Q4 conducting, feedback signal to transport and placing device AR2, amplifier
Device AR3 output port, thermal compensation signal current potential improve window circuit output signal amplitude, play stable push-pull circuit output signal
The effect of amplitude range.
Detailed description of the invention
Fig. 1 is a kind of module map of ultrasonic contrast auxiliary monitoring device of the present invention.
Fig. 2 is a kind of schematic diagram of ultrasonic contrast auxiliary monitoring device of the present invention.
Specific embodiment
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through attached drawing 2
To in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following embodiment is with specification
Attached drawing is reference.
Embodiment one, ultrasonic contrast auxiliary monitoring device, including signal frequency Acquisition Circuit, window push-pull circuit and frequency-selecting
Output circuit, the signal frequency Acquisition Circuit select the signal frequency collector J1 of model SJ-ADC, signal frequency acquisition
Device J2 acquires the two-end-point signal frequency that controlling terminal in ultrasonic contrast auxiliary monitoring device receives signal path, the window respectively
Mouth push-pull circuit forms window circuit to the differential processing of signal, together with transport and placing device AR2, transport and placing device AR3 and capacitor C7, capacitor C8
Shi Yunyong triode Q1 ~ triode Q3 and diode D1, diode D2 composition push-pull circuit improve the switching speed of circuit, and
And in triode Q4, triode Q5 feedback signal to window circuit, adjusting window circuit output signal amplitude is last described
Frequency-selecting output circuit filters out single-frequency with resistance R16 ~ resistance R18 and capacitor C11 ~ capacitor C13 group T frequency selection circuit in pairs
Signal output, that is to say the thermal compensation signal that signal is received for controlling terminal in ultrasonic contrast auxiliary monitoring device；
The window push-pull circuit is with transport and placing device AR2, transport and placing device AR3 and capacitor C7, capacitor C8 composition window circuit to signal
The differential processing of two paths of signals of frequency collection circuit output, stabilization signal quiescent point, while using triode Q1 ~ triode
Q3 and diode D1, diode D2 form the switching speed that push-pull circuit improves circuit, with the input of signal, diode D1,
Signal is divided into sine wave and negative string wave two parts by diode D2, so that triode Q1, triode Q2 is continuously replaced conducting, with one
Signal amplitude is the period, can not only improve the switching speed of circuit, and triode Q3 is amplifying triode, amplified signal function
Rate can improve the load capacity of signal, for further stabilization signal amplitude range, feed back with triode Q4, triode Q5
In signal to window circuit, when signal amplitude is excessive, triode Q5 is connected at this time, feedback signal to transport and placing device AR2, transport and placing device
In AR3 inverting input terminal, window circuit output signal amplitude is reduced, when signal amplitude is too small, triode Q4 conducting, feedback letter
Number to transport and placing device AR2, transport and placing device AR3 output port, thermal compensation signal current potential improves window circuit output signal amplitude, plays steady
Determine the effect of push-pull circuit output signal amplitude range, one end of the homophase input terminating resistor R10 of transport and placing device AR2, capacitor C7,
One end of the anti-phase input terminating resistor R7 of transport and placing device AR2, resistance R8, one end and three poles of another terminating resistor R9 of resistance R8
The emitter of pipe Q5 and the inverting input terminal of transport and placing device AR3, the other end ground connection of resistance R9, the homophase input of transport and placing device AR3
One end of terminating resistor R11, capacitor C8, the output of transport and placing device AR3 terminate the current collection of the output end of transport and placing device AR2, triode Q4
The other end and electricity of pole, the cathode of diode D1, the anode of diode D2 and resistance R10, capacitor C7, resistance R11, capacitor C8
One end of R15, capacitor C9, the other end ground connection of resistance R15, capacitor C9 are hindered, the base stage of triode Q4 connects the current collection of triode Q1
The other end and power supply+5V of pole, one end of resistance R13, one end of resistance R12 and resistance R7, the base stage of triode Q1 connect electricity
The other end of R12 and the anode of diode D1 are hindered, the emitter of triode Q1 connects the base stage of triode Q3 and the hair of triode Q2
Emitter-base bandgap grading, the base stage of triode Q2 connect the cathode of diode D2, the other end and triode of the collector connecting resistance R13 of triode Q3
The base stage of the emitter of Q4, triode Q5, the emitter of triode Q3 connect the collector of triode Q5 and one end of resistance R14,
The other end of resistance R14 and the collector of triode Q2 connect one end and the ground terminal of capacitor C10, the other end ground connection of capacitor C10.
Embodiment two, on the basis of example 1, the frequency-selecting output circuit use resistance R16 ~ resistance R18 and capacitor
C11 ~ capacitor C13 group T frequency selection circuit in pairs filters out single-frequency signals output, and the signal of single-frequency can guarantee signal
Stability, while inductance L3 filters out high-frequency signal interference, that is to say and receives for controlling terminal in ultrasonic contrast auxiliary monitoring device
To the thermal compensation signal of signal, one end of a termination capacitor C11 of resistance R16 and the base stage of triode Q5, the other end of resistance R16
One end of connecting resistance R18 and one end of capacitor C13, one end of another terminating resistor R17 of capacitor C11, capacitor C12, resistance
R17, capacitor C13 the other end ground connection, resistance R18, capacitor C12 another termination inductance L3 one end, the other end of inductance L3
One end of connecting resistance R19, another termination signal output port of resistance R19.
Implement three, on the basis of example 1, the signal frequency Acquisition Circuit selects the signal of model SJ-ADC
Controlling terminal receives signal path in frequency collection device J1 and signal frequency collector J2 acquisition ultrasonic contrast auxiliary monitoring device
Two-end-point signal frequency, signal frequency collector J1 acquire ultrasonic contrast auxiliary monitoring device controlling terminal receive signal path
Input end signal frequency, signal frequency collector J2 acquire ultrasonic contrast auxiliary monitoring device controlling terminal receive signal path
Output end signal frequency, while filtering out low frequency signal interference with the RC circuit that resistance R3 and capacitor C2 are formed, inductance L2 and
The lc circuit of capacitor C3 composition filters out high-frequency signal interference, and similarly it is dry to filter out low frequency signal for resistance R6 and capacitor C5 composition RC circuit
It disturbs, the lc circuit of inductance L1 and capacitor C6 composition filters out high-frequency signal interference, the power supply termination capacitor of signal frequency collector J1
C1, one end of resistance R1 and power supply+5V, the ground terminal ground connection of signal frequency collector J1, the output of signal frequency collector J1
One end of termination capacitor C1, the other end of resistance R1 and resistance R2, another terminating resistor R3 of resistance R2, one end of capacitor C2 and
One end of inductance L2, one end of another termination capacitor C3 of inductance L2 and the non-inverting input terminal of transport and placing device AR2, resistance R3, capacitor
The other end ground connection of C2, capacitor C3, the power supply termination capacitor C4 of signal frequency collector J2, one end of resistance R4 and power supply+5V,
The ground terminal of signal frequency collector J2 is grounded, the other end of the output termination capacitor C4 of signal frequency collector J2, resistance R4
With one end of resistance R5, another terminating resistor R6, one end of capacitor C5 and one end of inductance L1 of resistance R5, inductance L1's is another
One end of termination capacitor C6 and the non-inverting input terminal of transport and placing device AR3, the other end ground connection of resistance R6, capacitor C5, capacitor C6.
When the present invention is specifically used, ultrasonic contrast auxiliary monitoring device, including signal frequency Acquisition Circuit, window recommend electricity
Road and frequency-selecting output circuit, the signal frequency Acquisition Circuit select signal frequency collector J1, the signal of model SJ-ADC
Frequency collection device J2 acquires the two-end-point signal frequency that controlling terminal in ultrasonic contrast auxiliary monitoring device receives signal path respectively
Rate, the window push-pull circuit is with transport and placing device AR2, transport and placing device AR3 and capacitor C7, capacitor C8 composition window circuit to signal frequency
The differential processing of two paths of signals of rate Acquisition Circuit output, stabilization signal quiescent point, while using triode Q1 ~ triode Q3
The switching speed that circuit is improved with diode D1, diode D2 composition push-pull circuit, with the input of signal, diode D1, two
Signal is divided into sine wave and negative string wave two parts by pole pipe D2, and triode Q1, triode Q2 is made continuously to replace conducting, is believed with one
Number amplitude is the period, can not only improve the switching speed of circuit, and triode Q3 is amplifying triode, amplified signal power,
The load capacity of signal can be improved, for further stabilization signal amplitude range, with triode Q4, triode Q5 feedback signal
To window circuit, when signal amplitude is excessive, triode Q5 is connected at this time, feedback signal to transport and placing device AR2, transport and placing device AR3
In inverting input terminal, window circuit output signal amplitude is reduced, when signal amplitude is too small, triode Q4 conducting, feedback signal
To transport and placing device AR2, transport and placing device AR3 output port, thermal compensation signal current potential improves window circuit output signal amplitude, plays stabilization
The effect of push-pull circuit output signal amplitude range, the last frequency-selecting output circuit use resistance R16 ~ resistance R18 and capacitor
C11 ~ capacitor C13 group T frequency selection circuit in pairs filters out single-frequency signals output, that is to say as ultrasonic contrast auxiliary monitoring device
Middle controlling terminal receives the thermal compensation signal of signal.
The above is that further detailed description of the invention, and it cannot be said that the present invention in conjunction with specific embodiment
Specific implementation is limited only to this；Belonging to the present invention and for those skilled in the technology concerned, it is being based on skill of the present invention
Under the premise of art scheme thinking, it is made expansion and operating method, data replacement, should all fall in the scope of the present invention it
It is interior.
Claims (3)
1. a kind of ultrasonic contrast auxiliary monitoring device, including signal frequency Acquisition Circuit, window push-pull circuit and frequency-selecting output electricity
Road, which is characterized in that the signal frequency Acquisition Circuit selects the signal frequency collector J1 of model SJ-ADC, signal frequency
Collector J2 acquires the two-end-point signal frequency that controlling terminal in ultrasonic contrast auxiliary monitoring device receives signal path, institute respectively
Window push-pull circuit is stated with transport and placing device AR2, transport and placing device AR3 and capacitor C7, capacitor C8 composition window circuit to the differential place of signal
Reason, at the same it is fast with the switch that triode Q1 ~ triode Q3 and diode D1, diode D2 composition push-pull circuit improve circuit
Degree, and in triode Q4, triode Q5 feedback signal to window circuit, window circuit output signal amplitude is adjusted, most
The frequency-selecting output circuit filters out list with resistance R16 ~ resistance R18 and capacitor C11 ~ capacitor C13 group T frequency selection circuit in pairs afterwards
The output of one frequency signal, that is to say the thermal compensation signal that signal is received for controlling terminal in ultrasonic contrast auxiliary monitoring device；
The window push-pull circuit includes transport and placing device AR2, and the one of the homophase input terminating resistor R10 of transport and placing device AR2, capacitor C7
End, one end of the anti-phase input terminating resistor R7 of transport and placing device AR2, resistance R8, one end of another terminating resistor R9 of resistance R8 and
The emitter of triode Q5 and the inverting input terminal of transport and placing device AR3, the other end ground connection of resistance R9, the same phase of transport and placing device AR3
Input one end of terminating resistor R11, capacitor C8, the output termination output end of transport and placing device AR2 of transport and placing device AR3, triode Q4
Collector, the cathode of diode D1, the anode of diode D2 and resistance R10, capacitor C7, resistance R11, capacitor C8 the other end with
And one end of resistance R15, capacitor C9, the other end ground connection of resistance R15, capacitor C9, the base stage of triode Q4 connect triode Q1's
Collector, one end of resistance R13, one end of resistance R12 and resistance R7 the other end and power supply+5V, the base stage of triode Q1
The other end of connecting resistance R12 and the anode of diode D1, the emitter of triode Q1 connect the base stage and triode Q2 of triode Q3
Emitter, the base stage of triode Q2 connects the cathode of diode D2, the other end and three of the collector connecting resistance R13 of triode Q3
The base stage of the emitter of pole pipe Q4, triode Q5, the emitter of triode Q3 connect triode Q5 collector and resistance R14 one
End, the other end of resistance R14 and the collector of triode Q2 connect one end and the ground terminal of capacitor C10, another termination of capacitor C10
Ground.
2. a kind of ultrasonic contrast auxiliary monitoring device as described in claim 1, which is characterized in that the frequency-selecting output circuit includes
One end of a termination capacitor C11 of resistance R16, resistance R16 and the base stage of triode Q5, another terminating resistor R18 of resistance R16
One end and capacitor C13 one end, one end of another terminating resistor R17 of capacitor C11, capacitor C12, resistance R17, capacitor C13
The other end ground connection, resistance R18, capacitor C12 another termination inductance L3 one end, another terminating resistor R19's of inductance L3
One end, another termination signal output port of resistance R19.
3. a kind of ultrasonic contrast auxiliary monitoring device as described in claim 1, which is characterized in that the signal frequency Acquisition Circuit
Signal frequency collector J1 and signal frequency collector J2 including model SJ-ADC, the power end of signal frequency collector J1
Meet capacitor C1, one end of resistance R1 and power supply+5V, the ground terminal ground connection of signal frequency collector J1, signal frequency collector J1
Output termination capacitor C1, the other end of resistance R1 and one end of resistance R2, another terminating resistor R3 of resistance R2, capacitor C2
One end of one end and inductance L2, one end of another termination capacitor C3 of inductance L2 and the non-inverting input terminal of transport and placing device AR2, resistance
R3, capacitor C2, capacitor C3 the other end ground connection, the power supply termination capacitor C4 of signal frequency collector J2, one end of resistance R4 and
The ground terminal of power supply+5V, signal frequency collector J2 are grounded, output termination capacitor C4, the resistance R4 of signal frequency collector J2
The other end and resistance R5 one end, another terminating resistor R6, one end of capacitor C5 and one end of inductance L1 of resistance R5, inductance
One end of another termination capacitor C6 of L1 and the non-inverting input terminal of transport and placing device AR3, the other end of resistance R6, capacitor C5, capacitor C6
Ground connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083435.XA CN109589134B (en) | 2019-01-29 | 2019-01-29 | Ultrasonic radiography auxiliary monitoring device |
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| CN201910083435.XA CN109589134B (en) | 2019-01-29 | 2019-01-29 | Ultrasonic radiography auxiliary monitoring device |
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| CN109589134B CN109589134B (en) | 2021-07-13 |
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| CN110269636A (en) * | 2019-07-22 | 2019-09-24 | 河南省中医院（河南中医药大学第二附属医院） | Stereoscopic imaging examination device for radiology department |
| CN111990945A (en) * | 2020-09-17 | 2020-11-27 | 河南省中医院（河南中医药大学第二附属医院） | Anorectal endoscope signal management system |
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|---|---|
| CN109589134B (en) | 2021-07-13 |
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