CN204468134U - There is double-frequency single, many array element IVUS transducer - Google Patents
There is double-frequency single, many array element IVUS transducer Download PDFInfo
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- CN204468134U CN204468134U CN201520042847.6U CN201520042847U CN204468134U CN 204468134 U CN204468134 U CN 204468134U CN 201520042847 U CN201520042847 U CN 201520042847U CN 204468134 U CN204468134 U CN 204468134U
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Abstract
This utility model provides one and has double-frequency single array element IVUS transducer, comprise low frequency piezoelectric structure, back structure, flexible PCB, joint filling structure and two sub-array elements, described low frequency piezoelectric structure and back structure stack gradually the side surface in described flexible PCB, described submatrix unit and joint filling structure are located at the opposite side surface of described flexible PCB, and described joint filling spacing structure is between two described submatrix units, each described submatrix unit includes the high frequency piezo structure and matching layer that are laminated in described flexible PCB opposite side surface.During actual use, as blood vessel pathological changes will be detected, the transducer of altofrequency (40MHz) can be used; As will be detected the pathological changes of tiny blood vessels by shadowgraph technique, the transducer of low frequency (10MHz) can be used, launch ultrasound wave, utilize the receive MUT higher hamonic wave of altofrequency (40MHz), and imaging.
Description
Technical field
This utility model relates to the IVUS transducer of Ink vessel transfusing phase control type, particularly relates to one and has double-frequency single, many array element IVUS transducer and forming method thereof.
Background technology
Intravascular ultrasound (IVUS) by microcatheter technology, the ultrasonic probe of microminiaturization is inserted Endovascular to develop, the cross sectional image comprising tube chamber and tube wall can be provided, not only can understand the form of tube chamber, directly can also show the structure of tube wall, and judge the character of pathological changes according to the echo characteristic of pathological changes, the size of Accurate Measurement tube chamber, blood vessel and the stenosis of pathological changes.
Traditional ultrasonic image equipment receives the echo-signal imaging identical with tranmitting frequency, is called Fundamental Imaging.In fact echo-signal produces the inferior higher hamonic wave of secondary three of first-harmonic after being subject to the non-linear modulation of tissue, utilizes the higher hamonic waves such as the secondary of human body echo to form the image of human organ, can improve image resolution ratio.This method of higher hamonic wave imaging that utilizes just is called harmonic imaging.Contast harmonic imaging refers to and contrast agent is injected blood vessel, to strengthen the echo ability of tissue, improves the definition of image further.
Present IVUS transducer mainly contains two types:
Be a ultrasonic transducer for machinery rotating type, by the rotation of transducer within the scope of 360 degree of single array element, and launch ultrasound wave, the sound collecting be simultaneously reflected back by vascular cross-section, by the method for image procossing, present Type B ultrasonoscopy.The frequency of transducer is usually at about 40MHz.
Existing mechanical type IVUS transducer, owing to being lean on motor driving, 360 degree of rotation sweeps, so the rotation of the rotary motion and motor that inevitably there is transducer exists nonlinear relation, therefore image has distortion, affects medical diagnosis on disease.
Another kind is the ultrasonic transducer of phased configuration, has 64 array elements, circular array, without the need to rotating, utilizing the method that electronic delay encourages, the sound collecting be reflected back by vascular cross-section, by the method for image procossing, presenting Type B ultrasonoscopy.The frequency of transducer is usually at about 20MHz.
The IVUS transducer of existing phased configuration, although do not need to rotate, frame for movement is relatively simple, and transducer frequency is lower, only has about 20MHz, and image resolution ratio is not enough.So existing IVUS transducer cannot detect for microvascular pathological changes.
Utility model content
The technical problems to be solved in the utility model how to solve the problems such as the IVUS transducer transducer frequency of existing phased configuration is lower and image resolution ratio is not enough.
In order to solve this technical problem, this utility model provides one and has double-frequency single array element IVUS transducer, comprise low frequency piezoelectric structure, back structure, flexible PCB, joint filling structure and two sub-array elements, described low frequency piezoelectric structure and back structure stack gradually the side surface in described flexible PCB, described submatrix unit and joint filling structure are located at the opposite side surface of described flexible PCB, and described joint filling spacing structure is between two described submatrix units, each described submatrix unit includes the high frequency piezo structure and matching layer that are laminated in described flexible PCB opposite side surface.
Optionally, the material of described low frequency piezoelectric structure is piezoelectric ceramics, piezoelectric monocrystal or composite.
Optionally, the material of described high frequency piezo structure is piezoelectric ceramics, piezoelectric monocrystal or composite.
Optionally, the described double-frequency single array element IVUS transducer that has also comprises the cable be located on described flexible PCB, and described cable is communicated to described high frequency piezo structure and low frequency piezoelectric structure.
This utility model additionally provides one and has double-frequency many array element IVUS transducer, some array elements that the flexible PCB comprising annular is arranged around described flexible PCB axle center, each described array element includes low frequency piezoelectric structure, back structure, flexible PCB, joint filling structure and two sub-array elements, described low frequency piezoelectric structure and back structure stack gradually the inner surface in described flexible PCB, described submatrix unit and joint filling structure are located at the opposite side surface of described flexible PCB, and described joint filling spacing structure is between two described submatrix units, each described submatrix unit includes the high frequency piezo structure and matching layer that are laminated in described flexible PCB outer surface.
Optionally, the material of described low frequency piezoelectric structure is piezoelectric ceramics, piezoelectric monocrystal or composite.
Optionally, the material of described high frequency piezo structure is piezoelectric ceramics, piezoelectric monocrystal or composite.
Optionally, have double-frequency many array element IVUS transducer and also comprise the cable be located on described flexible PCB, described cable is communicated to described high frequency piezo structure and low frequency piezoelectric structure.
Optionally, described flexible PCB inner space is perfused with back lining materials.
This utility model additionally provides a kind of forming method with double-frequency IVUS transducer, with think that this utility model provides one there is double-frequency many array element IVUS transducer carry out molding, comprising:
First some described array element is arranged in described flexible PCB, then described flexible PCB is bent to annular, after becoming annular, fill back lining materials at the inner space of described flexible PCB.
Bifrequency IVUS transducer of the present utility model can be the phased array type transducer having 64 array elements, without the need to rotating, there is not pattern distortion problem.During actual use, as blood vessel pathological changes will be detected, the transducer of altofrequency (40MHz) can be used; As will be detected the pathological changes of tiny blood vessels by shadowgraph technique, the transducer of low frequency (10MHz) can be used, launch ultrasound wave, utilize the receive MUT higher hamonic wave of altofrequency (40MHz), and imaging.
Accompanying drawing explanation
Fig. 1 is the structural representation in this utility model one embodiment with double-frequency single array element IVUS transducer;
Fig. 2 is the structural representation in another embodiment of this utility model with double-frequency many array element IVUS transducer;
Fig. 3 is the perspective view in another embodiment of this utility model with double-frequency many array element IVUS transducer;
In figure, 1-back structure; 2-low frequency piezoelectric structure; 3-flexible PCB; 4-joint filling structure; 5-high frequency piezo structure; 6-matching layer; 7-back lining materials; 8-cable join domain.
Detailed description of the invention
Double-frequency single, the many array element IVUS transducer of having of providing of this utility model and forming method thereof are described in detail by two embodiments below with reference to Fig. 1 to Fig. 3, it is this utility model optional embodiment, can think, those skilled in the art can modify to it and polish in the scope not changing this utility model spirit and content.
Embodiment 1
Please refer to Fig. 1, present embodiments provide one and there is double-frequency single array element IVUS transducer, comprise low frequency piezoelectric structure 2, back structure 1, flexible PCB 3, joint filling structure 4 and two sub-array elements, described low frequency piezoelectric structure 2 and back structure 1 stack gradually the side surface in described flexible PCB 3, described submatrix unit and joint filling structure 4 are located at the opposite side surface of described flexible PCB 3, and described joint filling structure 4 is interval between two described submatrix units, each described submatrix unit includes the high frequency piezo structure 5 and matching layer 6 that are laminated in described flexible PCB 3 opposite side surface.
During actual use, as blood vessel pathological changes will be detected, the transducer of altofrequency (40MHz) can be used; As will be detected the pathological changes of tiny blood vessels by shadowgraph technique, the transducer of low frequency (10MHz) can be used, launch ultrasound wave, utilize the receive MUT higher hamonic wave of altofrequency (40MHz), and imaging.
The material of the described low frequency piezoelectric structure in the present embodiment can be piezoelectric ceramics, piezoelectric monocrystal or composite.The material of described high frequency piezo structure also can be piezoelectric ceramics, piezoelectric monocrystal or composite.
The described double-frequency single array element IVUS transducer that has also comprises the cable be located on described flexible PCB 3, and described cable 3 is communicated to described high frequency piezo structure 5 and low frequency piezoelectric structure 2.Cable can be connected to described high frequency piezo structure 5 and low frequency piezoelectric structure 2 by the cable join domain 8 on flexible PCB 3.
Embodiment 2
Please refer to Fig. 2 and Fig. 3, present embodiments provide and there is double-frequency many array element IVUS transducer, certainly, the axonometric chart of Fig. 3 does not illustrate whole array element, it is only part signal, not represent on it only three array elements, some array elements that the flexible PCB 3 that this transducer comprises annular is arranged around described flexible PCB axle center, each described array element includes low frequency piezoelectric structure 2, back structure 1, flexible PCB 3, joint filling structure 4 and two sub-array elements, described low frequency piezoelectric structure 2 and back structure 1 stack gradually the inner surface in described flexible PCB 3, described submatrix unit and joint filling structure 4 are located at the opposite side surface of described flexible PCB 3, and described joint filling structure 4 is interval between two described submatrix units, each described submatrix unit includes the high frequency piezo structure 5 and matching layer 6 that are laminated in described flexible PCB 3 outer surface.
Similar with embodiment, the bifrequency IVUS transducer of the present embodiment is the phased array type transducer having 64 array elements, without the need to rotating, there is not pattern distortion problem.During actual use, as blood vessel pathological changes will be detected, the transducer of altofrequency (40MHz) can be used; As will be detected the pathological changes of tiny blood vessels by shadowgraph technique, the transducer of low frequency (10MHz) can be used, launch ultrasound wave, utilize the receive MUT higher hamonic wave of altofrequency (40MHz), and imaging.
During transducer work, if common B-mode imaging, then only need encourage high frequency piezo material, imaging is carried out to blood vessel; If need to carry out harmonic imaging, then can encourage low frequency piezoelectric, launch low-frequency ultrasonic waves, then receive higher hamonic wave with high frequency piezo material.
Identical with embodiment 1, the material of the described low frequency piezoelectric structure 2 in the present embodiment can be piezoelectric ceramics, piezoelectric monocrystal or composite.The material of described high frequency piezo structure 5 also can be piezoelectric ceramics, piezoelectric monocrystal or composite.Have double-frequency many array element IVUS transducer and also comprise the cable be located on described flexible PCB, described cable is communicated to described high frequency piezo structure and low frequency piezoelectric structure.Cable can be connected to described high frequency piezo structure 5 and the low frequency piezoelectric structure 2 of different array element by the cable join domain 8 on flexible PCB 3.
In addition, in the present embodiment, described flexible PCB inner space is perfused with back lining materials.To strengthen the intensity of total, and strengthen the size of back lining materials, be more conducive to the concussion reducing echo.
The present embodiment additionally provides a kind of forming method with double-frequency IVUS transducer, with thinking that the double-frequency many array element IVUS transducer that has provided as the present embodiment carries out molding, comprising:
First some described array element is arranged in described flexible PCB 3, then described flexible PCB 3 is bent to annular, so, flexible PCB is relied on to connect into annular between array element, after shaping, at cylindrical zone line perfusion back lining materials, after becoming annular, fill back lining materials 7 at the inner space of described flexible PCB 3.Here become annular alleged by or be shaped, nature can comprise process flexible PCB 3 being processed into one closed ring, and its means are a lot, and the present embodiment does not do concrete expansion.In addition, use MEMES, the i.e. method of semiconductor microactuator machining, make cMUT or pMUT transducer, realize bifrequency many array element IVUS ring battle array.
In sum, bifrequency IVUS transducer of the present utility model can be the phased array type transducer having 64 array elements, without the need to rotating, there is not pattern distortion problem.During actual use, as blood vessel pathological changes will be detected, the transducer of altofrequency (40MHz) can be used; As will be detected the pathological changes of tiny blood vessels by shadowgraph technique, the transducer of low frequency (10MHz) can be used, launch ultrasound wave, utilize the receive MUT higher hamonic wave of altofrequency (40MHz), and imaging.
Claims (9)
1. one kind has double-frequency single array element IVUS transducer, comprise low frequency piezoelectric structure, back structure, flexible PCB, joint filling structure and two sub-array elements, described low frequency piezoelectric structure and back structure stack gradually the side surface in described flexible PCB, described submatrix unit and joint filling structure are located at the opposite side surface of described flexible PCB, and described joint filling spacing structure is between two described submatrix units, each described submatrix unit includes the high frequency piezo structure and matching layer that are laminated in described flexible PCB opposite side surface.
2. there is double-frequency single array element IVUS transducer as claimed in claim 1, it is characterized in that: the material of described low frequency piezoelectric structure is piezoelectric ceramics, piezoelectric monocrystal or composite.
3. there is double-frequency single array element IVUS transducer as claimed in claim 1, it is characterized in that: the material of described high frequency piezo structure is piezoelectric ceramics, piezoelectric monocrystal or composite.
4. have double-frequency single array element IVUS transducer as claimed in claim 1, it is characterized in that: also comprise the cable be located on described flexible PCB, described cable is communicated to described high frequency piezo structure and low frequency piezoelectric structure.
5. one kind has double-frequency many array element IVUS transducer, some array elements that the flexible PCB comprising annular is arranged around described flexible PCB axle center, each described array element includes low frequency piezoelectric structure, back structure, circuit board, joint filling structure and two sub-array elements, described low frequency piezoelectric structure and back structure stack gradually the inner surface in described flexible PCB, described submatrix unit and joint filling structure are located at the opposite side surface of described flexible PCB, and described joint filling spacing structure is between two described submatrix units, each described submatrix unit includes the high frequency piezo structure and matching layer that are laminated in described flexible PCB outer surface.
6. there is double-frequency many array element IVUS transducer as claimed in claim 5, it is characterized in that: the material of described low frequency piezoelectric structure is piezoelectric ceramics, piezoelectric monocrystal or composite.
7. there is double-frequency many array element IVUS transducer as claimed in claim 5, it is characterized in that: the material of described high frequency piezo structure is piezoelectric ceramics, piezoelectric monocrystal or composite.
8. have double-frequency many array element IVUS transducer as claimed in claim 5, it is characterized in that: also comprise the cable be located on described flexible PCB, described cable is communicated to described high frequency piezo structure and low frequency piezoelectric structure.
9. there is double-frequency many array element IVUS transducer as claimed in claim 5, it is characterized in that: described flexible PCB inner space is perfused with back lining materials.
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| CN201520042847.6U CN204468134U (en) | 2015-01-21 | 2015-01-21 | There is double-frequency single, many array element IVUS transducer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104605892A (en) * | 2015-01-21 | 2015-05-13 | 上海爱声生物医疗科技有限公司 | Single-array-element IVUS transducer with double frequencies, multi-array-element IVUS transducer with double frequencies and forming method of transducers |
| CN105232147A (en) * | 2015-11-19 | 2016-01-13 | 郑州大学 | Ultrasonic probe for catheter positioning |
| CN107762491A (en) * | 2016-08-17 | 2018-03-06 | 中国石油化工股份有限公司 | A kind of acoustic logging while drilling radiation appliance |
| CN108272469A (en) * | 2017-12-22 | 2018-07-13 | 深圳先进技术研究院 | A kind of bifrequency intravascular ultrasound imaging probe |
| WO2019119400A1 (en) * | 2017-12-22 | 2019-06-27 | 深圳先进技术研究院 | Dual-frequency intravascular ultrasonic imaging probe |
| CN110141268A (en) * | 2019-05-07 | 2019-08-20 | 天津大学 | A kind of machinery rotating type double frequency intravascular ultrasound radiant force elastic imaging probe |
| CN110279434A (en) * | 2019-06-19 | 2019-09-27 | 天津大学 | A kind of rotary multifrequency intravascular ultrasound imaging probe of multi-mode mechanical |
| CN111468381A (en) * | 2020-04-26 | 2020-07-31 | 中国科学院苏州生物医学工程技术研究所 | Dual-frequency ultrasonic transducer and ultrasonic detection equipment |
| WO2023097784A1 (en) * | 2021-11-30 | 2023-06-08 | 深圳先进技术研究院 | Dual-frequency endoscopic catheter and imaging device |
-
2015
- 2015-01-21 CN CN201520042847.6U patent/CN204468134U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104605892A (en) * | 2015-01-21 | 2015-05-13 | 上海爱声生物医疗科技有限公司 | Single-array-element IVUS transducer with double frequencies, multi-array-element IVUS transducer with double frequencies and forming method of transducers |
| CN105232147A (en) * | 2015-11-19 | 2016-01-13 | 郑州大学 | Ultrasonic probe for catheter positioning |
| CN107762491A (en) * | 2016-08-17 | 2018-03-06 | 中国石油化工股份有限公司 | A kind of acoustic logging while drilling radiation appliance |
| CN107762491B (en) * | 2016-08-17 | 2020-09-25 | 中国石油化工股份有限公司 | While-drilling acoustic logging radiation device |
| CN108272469A (en) * | 2017-12-22 | 2018-07-13 | 深圳先进技术研究院 | A kind of bifrequency intravascular ultrasound imaging probe |
| WO2019119400A1 (en) * | 2017-12-22 | 2019-06-27 | 深圳先进技术研究院 | Dual-frequency intravascular ultrasonic imaging probe |
| CN108272469B (en) * | 2017-12-22 | 2021-02-26 | 深圳先进技术研究院 | Double-frequency intravascular ultrasonic imaging probe |
| CN110141268A (en) * | 2019-05-07 | 2019-08-20 | 天津大学 | A kind of machinery rotating type double frequency intravascular ultrasound radiant force elastic imaging probe |
| CN110279434A (en) * | 2019-06-19 | 2019-09-27 | 天津大学 | A kind of rotary multifrequency intravascular ultrasound imaging probe of multi-mode mechanical |
| CN111468381A (en) * | 2020-04-26 | 2020-07-31 | 中国科学院苏州生物医学工程技术研究所 | Dual-frequency ultrasonic transducer and ultrasonic detection equipment |
| WO2023097784A1 (en) * | 2021-11-30 | 2023-06-08 | 深圳先进技术研究院 | Dual-frequency endoscopic catheter and imaging device |
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