CN207101289U - A kind of continuous-wave doppler hemodynamic detection means - Google Patents
A kind of continuous-wave doppler hemodynamic detection means Download PDFInfo
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- CN207101289U CN207101289U CN201621493998.4U CN201621493998U CN207101289U CN 207101289 U CN207101289 U CN 207101289U CN 201621493998 U CN201621493998 U CN 201621493998U CN 207101289 U CN207101289 U CN 207101289U
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- transducer
- modem
- continuous
- wave doppler
- detection means
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Abstract
The utility model provides a kind of continuous-wave doppler hemodynamic detection means, including transducer, modem, low pass filter, spectrum analyzer and the display being sequentially connected, continuous wave Doppler blood flow signal is shown for collection analysis, the transducer includes receive transducer and the transmitting transducer being connected respectively with the modem, amplifying circuit is additionally provided between the receive transducer and the modem, oscillator is additionally provided between the transmitting transducer and the modem.The utility model is tested and analyzed based on continuous wave Doppler pattern to hemodynamic signal, and analyze speed is fast, spectral resolution is strong, and its frequency spectrum can reflect the speed of high speed blood flow, without being influenceed by Nyquist frequency.
Description
Technical field
The utility model belongs to technical field of medical equipment, and in particular to a kind of continuous-wave doppler hemodynamic detection dress
Put.
Background technology
The serious harm for avoiding angiocardiopathy from bringing human health, it is timely after early diagnosis and therapy, morbidity
Treatment is all very crucial.Existing diversified angiocardiopathy diagnosis and treatment instrument at present, Technical comparing maturation have electrocardio
Scheme detection, x-ray fluoroscopy, ultrasonic cardiography inspection, CT scan inspection, nuclear magnetic resonance, vein digital subtraction angiography etc..But these diagnosis and treatment
Instrumentation is complicated, somewhat expensive, and inconvenience carries out regular inspection, and some instrument diagnosis indexs are very few, and effect is little.
Particularly when doctor, which will fully understand, treats very important cardiac hemodynamic situation to diagnosing patient, on
It is all helpless to state most of instrument, now, the method for insertion conduit in vivo can only be taken to be detected.But this detection side
Method has wound and risk for patient, also requires that there are at a relatively high technology and appointed condition in hospital.
Following defect be present using ultrasound examination hemodynamic technology：Detection means without range gating performance, lack away from
From resolving power, approach each point information overlap that acoustic beam is passed through, received simultaneously by probe, so that output signal can not position.
Utility model content
The purpose of this utility model is to provide a kind of continuous-wave doppler hemodynamic detection means, based on continuous wave Doppler
Pattern tests and analyzes to hemodynamic signal, and analyze speed is fast, spectral resolution is strong, and its frequency spectrum can reflect high speed blood flow
Speed, without being influenceed by Nyquist frequency.
The utility model provides following technical scheme：
A kind of continuous-wave doppler hemodynamic detection means, including be sequentially connected transducer, modem, low pass filtered
Ripple device, spectrum analyzer and display, continuous wave Doppler blood flow signal is shown for collection analysis, the transducer includes dividing
The receive transducer and transmitting transducer not being connected with the modem, the receive transducer and the modem
Between be additionally provided with amplifying circuit, be additionally provided with oscillator between the transmitting transducer and the modem.
Preferably, the receive transducer and the transmitting transducer distinguish external sonac unit, the ultrasound
Sensor unit is divided into two parts of equity centered on aperture, and a half-cell is used to launch, and produces CWD focus beams, separately
One half-cell is used to receive, and produces the reception wave beam of focusing.
Preferably, the amplifying circuit uses high-frequency amplifier circuit, and the detection beam signal of reception is carried out into power amplification,
It is sent to modem.
Preferably, the oscillator uses harmonic oscillator, and direct current energy is converted into the alternating current with certain frequency
Can, as the transmitting transducer and the frequency source of modem.
Preferably, the display uses the display instrument with writing function, the blood flow that display record finally measures
Force signal.
The beneficial effects of the utility model are：Detection point is carried out to hemodynamic signal using continuous wave Doppler pattern
Analysis, analyze speed is fast, spectral resolution is strong, and its frequency spectrum can reflect the speed of high speed blood flow, without the shadow by Nyquist frequency
Ring；The transmitting and reception of ultrasound use different transducers, no sampling volume, the blood flow shape without range gating, reaction sample line
State, high speed blood flow can be surveyed occur without aliasing.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the utility model structure diagram.
Embodiment
As shown in figure 1, a kind of continuous-wave doppler hemodynamic detection means, including transducer, the modulatedemodulate being sequentially connected
Device, low pass filter, spectrum analyzer and display are adjusted, continuous wave Doppler blood flow signal, transducing are shown for collection analysis
Device includes receive transducer and the transmitting transducer being connected respectively with modem, receive transducer and transmitting transducer difference
External sonac unit, sonac unit are divided into two parts of equity centered on aperture, and a half-cell is used for
Transmitting, CWD focus beams are produced, another half-cell is used to receive, and produces the reception wave beam of focusing.Receive transducer and modulatedemodulate
Amplifying circuit is additionally provided between tune device, amplifying circuit uses high-frequency amplifier circuit, and the detection beam signal of reception is carried out into power
Amplification, is sent to modem.Oscillator is additionally provided between transmitting transducer and modem, oscillator is shaken using harmonic wave
Device is swung, direct current energy is converted into the AC energy with certain frequency, the frequency as transmitting transducer and modem
Source.Further, display uses the display instrument with writing function, the hemodynamic signal that display record finally measures.
As shown in figure 1, continuous wave Doppler：It is continuity that it, which is launched with the ultrasonic wave received, is whole acoustic beam passage
The summation of upper whole blood flow signals.In most cardiac work ups and some general ultrasonic image-forming systems, usually using continuous more
Pu Le with ensure measure heart in swiftly flowing blood.Under CWD patterns, sonac unit is centered on sensor aperture
It is divided into two parts of equity.One half-cell is used to launch, and produces CWD focus beams；Another half-cell is used to receive, and produces poly-
Burnt reception wave beam.Continuous type ultrasonic Doppler, a transducer in probe launch the continuous ultrasonic signal of a certain frequency,
The red cell population in moving target is run into when sound wave, then the signal reflected has been the ultrasonic wave for having changed frequency.Frequency spectrum point
Analysis includes the dispersion of frequency displacement phase, frequency displacement amplitude, frequency displacement direction, frequency spectrum briliancy and frequency spectrum, the spectrum analysis under CWD patterns
It can obtain a variety of blood flow anomalies states, including the speed of blood flow, phase, property and approach, no sampling volume, select without distance
Logical, reaction sample line blood flow state, high speed blood flow can be surveyed occur without aliasing.It the foregoing is only the utility model
Preferred embodiment, the utility model is not limited to, although being carried out with reference to the foregoing embodiments to the utility model
Detailed description, for those skilled in the art, it still can be to the technical scheme described in foregoing embodiments
Modify, or equivalent substitution is carried out to which part technical characteristic.It is all within the spirit and principles of the utility model, institute
Any modification, equivalent substitution and improvements of work etc., should be included within the scope of protection of the utility model.
Claims (4)
- A kind of 1. continuous-wave doppler hemodynamic detection means, it is characterised in that including be sequentially connected transducer, modulation /demodulation Device, low pass filter, spectrum analyzer and display, continuous wave Doppler blood flow signal is shown for collection analysis, it is described to change Can device include the receive transducer that is connected respectively with the modem and transmitting transducer, the receive transducer and described Amplifying circuit is additionally provided between modem, oscillator is additionally provided between the transmitting transducer and the modem, The receive transducer and the transmitting transducer distinguish external sonac unit, and the sonac unit is with aperture Centered on be divided into equity two parts, a part of unit be used for launch CWD focus beams caused by the transmitting transducer, separately A part of unit is used to receive detection signal and produces the reception wave beam of focusing.
- A kind of 2. continuous-wave doppler hemodynamic detection means according to claim 1, it is characterised in that the amplification electricity Road uses high-frequency amplifier circuit, and the high-frequency amplifier circuit connects the receive transducer and the modem respectively.
- A kind of 3. continuous-wave doppler hemodynamic detection means according to claim 1, it is characterised in that the oscillator Using harmonic oscillator, for the transmitting transducer and the frequency source of the modem.
- 4. a kind of continuous-wave doppler hemodynamic detection means according to any one of claim 1 to 3, its feature exist In the display uses the display instrument with writing function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621493998.4U CN207101289U (en) | 2016-12-31 | 2016-12-31 | A kind of continuous-wave doppler hemodynamic detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621493998.4U CN207101289U (en) | 2016-12-31 | 2016-12-31 | A kind of continuous-wave doppler hemodynamic detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207101289U true CN207101289U (en) | 2018-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201621493998.4U Active CN207101289U (en) | 2016-12-31 | 2016-12-31 | A kind of continuous-wave doppler hemodynamic detection means |
Country Status (1)
| Country | Link |
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| CN (1) | CN207101289U (en) |
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2016
- 2016-12-31 CN CN201621493998.4U patent/CN207101289U/en active Active
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: No. 28 Jinqiao Road, Xuzhou Economic Development Zone, Jiangsu Province, 221000 Patentee after: Da Wei medical (Jiangsu) Co., Ltd. Address before: 221000 Dongshan Road, Dongshan Road, Xuzhou Economic Development Zone, Xuzhou, Jiangsu Patentee before: Xuzhou Dawei Electronic Equipment Co., Ltd. |