CN205126298U - Multifrequency adjustable blood vessel ultrasonic diagnostic equipment - Google Patents
Multifrequency adjustable blood vessel ultrasonic diagnostic equipment Download PDFInfo
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- CN205126298U CN205126298U CN201520845947.2U CN201520845947U CN205126298U CN 205126298 U CN205126298 U CN 205126298U CN 201520845947 U CN201520845947 U CN 201520845947U CN 205126298 U CN205126298 U CN 205126298U
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Abstract
The utility model discloses a multifrequency adjustable blood vessel ultrasonic diagnostic equipment, it includes: ultrasound catheter, the control unit and supersound system, the last extremely wide ultrasonic transducer of frequency response that installs of ultrasound catheter, ultrasound catheter are used for sending ultrasonic transducer into the position that awaits measuring in the blood vessel, the control unit is used for drive and withdrawing ultrasound catheter, the supersound system is used for handling the supersound signal, the image at the position that obtains awaiting measuring in the blood vessel, the position that awaits measuring in the ultrasound catheter intravasation, to the different degree of depth departments at the position that awaits measuring in the blood vessel, the central frequency and bandwidth difference of the different and/or supersound signal received of the central frequency of the supersound signal of transmission and bandwidth. The utility model discloses a multifrequency adjustable blood vessel ultrasonic diagnostic equipment uses the supersound signal of different frequency to optimize the tissue formation of image of the different degree of depth, puies forward high resolution and penetration power.
Description
Technical field
This utility model relates to intravascular ultrasound diagnostic apparatus, the intravascular ultrasound diagnostic apparatus that particularly a kind of multifrequency is adjustable.
Background technology
Intravascular ultrasound (IntravascularUltrasound, IVUS) is a kind of new diagnostic method that the microcatheter technology of Non-Invasive ultrasonic technique and invasive combines.Intravascular ultrasound utilizes microcatheter technology that one miniature ultrasonic transducer is imported Endovascular to detect, and obtains the axial imaging of blood vessel wall, diagnose with assist clinicians to vessel inner lesion.
Be easy to the atherosclerotic lesion broken, i.e. vulnerable plaque, refer to all specklees easily causing thrombosis or fast-developing can become Culprit fart.In recent years because vulnerable plaque in arteria coronaria breaks, to corrode and the sickness rate of acute coronary artery syndrome that secondary thrombus is formed and causes increases day by day, the earlier detection of vulnerable plaque more and more receives the concern getting involved cardiologist.The fibrous cap on arteriosclerosis plaque surface judges one of speckle whether rapid wear main Histopathologic appearance.Thin fibrous cap points out this speckle to be crackly vulnerable plaque.Most research is thought, the speckle that fibrous cap thickness is less than 65 μm is vulnerable plaque.Current intravascular ultrasound system on the market only works at most under 45MHz, has the resolution of about 100um.Therefore, commercially available at present intravascular ultrasound system can not detect vulnerable plaque reliably.
Utility model content
This utility model is for above-mentioned problems of the prior art, the intravascular ultrasound diagnostic apparatus that a kind of multifrequency is adjustable is proposed, support the selection of multiple mid frequency and bandwidth, the ultrasonic signal of different frequency bands scope is used to be optimized different penetration depth, its resolution of effective raising, the resolution solving existing diasonograph is low, detects the problem that vulnerable plaque reliability is low.
For solving the problems of the technologies described above, this utility model is achieved by the following technical solution:
The intravascular ultrasound diagnostic apparatus that this utility model provides a kind of multifrequency adjustable, it comprises: ultrasound catheter, control unit and ultrasonic system, wherein:
The far-end of described ultrasound catheter is provided with ultrasonic transducer, and described ultrasound catheter is used for described ultrasonic transducer to send into Ink vessel transfusing detected part;
Described control unit is connected with described ultrasound catheter, for driving and withdrawing described ultrasound catheter, also for launching, receiving described ultrasonic signal;
Described ultrasonic system is connected with described control unit, for receiving the ultrasonic signal that the transmission of described control unit comes, and processing described ultrasonic signal, obtaining the image of described Ink vessel transfusing detected part;
When described ultrasound catheter enters described Ink vessel transfusing detected part, to the different depth place of described Ink vessel transfusing detected part, the mid frequency of the described ultrasonic signal of the transmitting mid frequency of described ultrasonic signal that is different with bandwidth and/or that receive is different with bandwidth.
Preferably, described ultrasonic transducer is the broad-band ultrasonic transducer of a frequency band range between 20MHz ~ 120MHz.
Preferably, the diverse location place of described ultrasound catheter is provided with the different ultrasonic transducer of multiple mid frequency.
Preferably, when described ultrasonic system is used for processing described ultrasonic signal, different signal processing methods is adopted to the described ultrasonic signal at Ink vessel transfusing different depth place.
Preferably, described ultrasonic system is also for controlling the frequency band range of the ultrasonic signal that described control unit is launched.
Compared to prior art, this utility model has the following advantages:
(1) the intravascular ultrasound diagnostic apparatus that the multifrequency that provides of this utility model is adjustable, the imaging of tissue of ultrasonic signal to different penetration depth of different frequency bands scope is used to be optimized, different frequency band ranges can be selected as required, obtain the image of resolution and penetration power optimum combination;
(2) because high frequency sound wave imaging resolution is high, the vulnerable plaque finding to be less than 65 μm is easy to.
Certainly, implement arbitrary product of the present utility model might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Fig. 1 is the structural representation of the adjustable intravascular ultrasound diagnostic apparatus of multifrequency of the present utility model.
Label declaration: 1-ultrasound catheter, 2-control unit, 3-ultrasonic system.
Detailed description of the invention
Below embodiment of the present utility model is elaborated; the present embodiment is implemented under premised on technical solutions of the utility model; give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Composition graphs 1, the intravascular ultrasound diagnostic apparatus adjustable to multifrequency of the present utility model is described in detail, it comprises: ultrasound catheter, control unit and ultrasonic system, wherein: the far-end of ultrasound catheter is provided with ultrasonic transducer, ultrasound catheter is used for ultrasonic transducer to send into Ink vessel transfusing detected part; Control unit is connected with described ultrasound catheter, for driving and withdrawing ultrasound catheter, also for launching, receiving ultrasonic signal; Ultrasonic system is connected with control unit, for the ultrasonic signal that reception control unit transmission comes, and processes ultrasonic signal, obtains the image of Ink vessel transfusing detected part; When detected part in ultrasound catheter intravasation, to the different depth place of Ink vessel transfusing detected part, mid frequency and the bandwidth of the ultrasonic signal of transmitting and/or reception can carry out different selections, i.e. multi-frequency imaging.
In the present embodiment, ultrasound catheter is provided with the very wide ultrasonic transducer of a frequency band range, its frequency band range is between 20MHz ~ 120MHz, it can use the material such as ceramic piezoelectric material, mono-crystalline piezoelectric materials, Ceramic Composite piezoelectric, monocrystalline composite piezoelectric material, pMUT, cMUT to make, it can according to different demands, in different regions, the ultrasonic signal of launching and receiving different center frequency and bandwidth.
In different embodiment, also on a ultrasound catheter, the narrower ultrasonic transducer of multiple frequency response bandwidth can being installed, for launching the ultrasonic signal of different frequency bands scope, realizing multi-frequency imaging.
When launching, user can pass through pulse center frequencies and the bandwidth of control unit unrestricted choice excitation ultrasound transducer according to imaging demand, also send instruction to control unit by ultrasonic system, allow the pulse that the impulse ejection circuit transmission pulse length of control unit is adjustable; In the reception stage, can be arranged by control unit, select mid frequency and the bandwidth of Received signal strength according to interested image-forming range; Also automatically can be controlled by ultrasonic system, ultrasonic system can specifically organize according to difference the ultrasonic signal received, and judges its sound wave using which kind of frequency, can accomplish the optimum combination of resolution and penetration power.Because the frequency band of ultrasonic transducer is very wide, according to the difference of pumping signal, the ultrasonic signal needed can be produced, coded excitation technology can be adopted simultaneously, strengthen the emitted energy of high-frequency signal, improve the resolution of imaging, to find the vulnerable plaque being less than 65 μm, improve the accuracy of diagnosis.
Disclosed herein is only preferred embodiment of the present utility model, and this description is chosen and specifically described these embodiments, and being to explain principle of the present utility model and practical application better, is not to restriction of the present utility model.The modifications and variations that any those skilled in the art do within the scope of description, all should drop in scope that this utility model protects.
Claims (5)
1. the intravascular ultrasound diagnostic apparatus that multifrequency is adjustable, is characterized in that, comprising: ultrasound catheter, control unit and ultrasonic system, wherein:
The far-end of described ultrasound catheter is provided with ultrasonic transducer, and described ultrasound catheter is used for described ultrasonic transducer to send into Ink vessel transfusing detected part;
Described control unit is connected with described ultrasound catheter, for driving and withdrawing described ultrasound catheter, also for launching, receiving described ultrasonic signal;
Described ultrasonic system is connected with described control unit, for receiving the ultrasonic signal that the transmission of described control unit comes, and processing described ultrasonic signal, obtaining the image of described Ink vessel transfusing detected part;
When described ultrasound catheter enters described Ink vessel transfusing detected part, to the different depth place of described Ink vessel transfusing detected part, the mid frequency of the described ultrasonic signal of the transmitting mid frequency of described ultrasonic signal that is different with bandwidth and/or that receive is different with bandwidth.
2. intravascular ultrasound diagnostic apparatus according to claim 1, is characterized in that, described ultrasonic transducer be the broad-band ultrasonic transducer of a frequency band range between 20MHz ~ 120MHz.
3. intravascular ultrasound diagnostic apparatus according to claim 1, is characterized in that, the diverse location place of described ultrasound catheter is provided with the extremely wide ultrasonic transducer of one or more frequency response or the narrower ultrasonic transducer of multiple frequency response.
4. intravascular ultrasound diagnostic apparatus according to claim 1, is characterized in that, when described ultrasonic system is used for processing described ultrasonic signal, can adopt different signal processing methods to the described ultrasonic signal at Ink vessel transfusing different depth place.
5. intravascular ultrasound diagnostic apparatus according to claim 1, is characterized in that, described ultrasonic system is also for controlling the frequency band range of the ultrasonic signal that described control unit is launched.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520845947.2U CN205126298U (en) | 2015-10-28 | 2015-10-28 | Multifrequency adjustable blood vessel ultrasonic diagnostic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520845947.2U CN205126298U (en) | 2015-10-28 | 2015-10-28 | Multifrequency adjustable blood vessel ultrasonic diagnostic equipment |
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| CN205126298U true CN205126298U (en) | 2016-04-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193455A (en) * | 2015-10-28 | 2015-12-30 | 上海爱声生物医疗科技有限公司 | Multifrequency adjustable intravascular diasonograph and diagnosis method thereof |
| CN108836382A (en) * | 2018-03-30 | 2018-11-20 | 中国科学院苏州生物医学工程技术研究所 | Multiple frequency ultrasonic observation method, device and equipment |
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2015
- 2015-10-28 CN CN201520845947.2U patent/CN205126298U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193455A (en) * | 2015-10-28 | 2015-12-30 | 上海爱声生物医疗科技有限公司 | Multifrequency adjustable intravascular diasonograph and diagnosis method thereof |
| CN108836382A (en) * | 2018-03-30 | 2018-11-20 | 中国科学院苏州生物医学工程技术研究所 | Multiple frequency ultrasonic observation method, device and equipment |
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