CN201624673U - Excitation and thee-dimensional sensing all-in-one device for biological tissue medical diagnosis - Google Patents
Excitation and thee-dimensional sensing all-in-one device for biological tissue medical diagnosis Download PDFInfo
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- CN201624673U CN201624673U CN 201020146889 CN201020146889U CN201624673U CN 201624673 U CN201624673 U CN 201624673U CN 201020146889 CN201020146889 CN 201020146889 CN 201020146889 U CN201020146889 U CN 201020146889U CN 201624673 U CN201624673 U CN 201624673U
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Abstract
The utility model discloses an excitation and thee-dimensional sensing all-in-one device for biological tissue medical diagnosis. The device consists of an acoustics unit and a thermoacoustic excitation unit. The acoustics unit comprises a circular gear, at least one arc-shaped ultrasonic array, a bowl-shaped arc casing in which ultrasonic coupling liquid is filled and a protective film. The circular gear concentrically arranged is located by the top of the bowl-shaped arc casing, the arc-shaped ultrasonic array of which the radian fits with that of the bowl-shaped arc casing is inlaid on the side wall of the bowl-shaped arc casing from the top and the bottom, and the bottom of the bowl-shaped arc casing is sealed and combined with the protective film. The thermoacoustic excitation unit consists of a horn antenna and a waveguide tube. The horn antenna is arranged below the protective film, and the bottom of the horn antenna is connected with the waveguide tube. The lower edge of the bowl-shaped arc casing is rotatably connected with the upper edge of the horn antenna. The utility model integrates thee-dimensional thermoacoustic imaging excitation and sensing. After connected with necessary external equipment, the device can realize thee-dimensional thermoacoustic and ultrasonic individual or combined imaging.
Description
Technical field
This utility model relates to biomedical measurement and technical field of medical instruments, is specifically related to a kind of exciting and three-dimensional sensing integrated device of biological tissue's medical diagnosis that be used for.
Background technology
The higher malignant tumor of breast carcinoma whole world sickness rate, the breast carcinoma in our some city of country has accounted for first that female tumor is fallen ill now, as Shanghai and Wuhan, and cities such as Beijing, Tianjin, Harbin have also accounted for second, so breast carcinoma should not be underestimated to the threat of human life's health.The damage of cranium brain position is the common wound of a class, China every year because of toll on traffic all above 100,000 people, a people all can be arranged in per 1 minute because vehicle accident and permanent disability, wherein craniocerebral injury accounts for over half.Therefore, reflect physiology, pathological condition, the especially infantile tumour of mammary gland or cranium brain and small damage quickly and accurately, most important to diagnosis, the treatment of disease.Except optics, acoustics, nmr imaging technique, new imaging technique also constantly is applied in the medical science detection of mammary gland or cranium brain; And the conventional two-dimensional imaging develops to three-dimensional imaging.
The thermal acoustic imaging technology be with pulse microwave as the imaging excitaton source, cause inspiring the characteristic of the thermic ultrasonic echo of varying strength based on biological tissue's inside microwave thermal absorption difference, with the emerging medical imaging method of ultrasonic unionizedization as information carrier.It effectively combines the advantage of the high-penetration degree of depth of the high-contrast of pure microwave imaging and pure acoustics imaging, can realize the tissue image of centimetre magnitude investigation depth and micron dimension imaging precision, have outstanding characteristics such as complete Noninvasive, non-destructive, unionized radiation, be considered to develop into the medical imaging technology of a new generation, become the method for early diagnosis of very effective tumor and other lesion tissue.Because the absorbance of microwave is directly relevant with moisture with some mechanics of biological tissue functional characteristic such as ionic conductivity, so, promptly can reflect the information that organism physiology and pathological state change by reconstructing the distribution of tissue to electro-magnetic wave absorption or hot acoustic pressure power.
Kruger in 2000 etc. reported respectively with 64 unit probe in polar coordinate system with the fixing spiral sparse at interval successively three-dimensional thermal acoustic imaging method (R.A.Kruger that is arranged in the hot acoustical signal of reception on the hemisphere face of polar angle, K.K.Kopecky, A.M.Aisen, D.R.Reinecke, G.A.Kruger, and W.L.Kiser, " Breast Cancer in Vivo:Contrast Enhancement with Thermoacoustic CT at 434MHz-Feasibility Study; " Radiology, 216 (1), 279-283,2000.); Though this mode does not need mechanical scanning can realize three-dimensional thermal acoustic imaging, because the too big and accurate location difficulty of a plurality of unit probe spacing, its difficulty of processing and spatial resolution are greatly limited.Calendar year 2001 Xu etc. has reported that employing unit focusing probe takes turns doing circumference and linear sector scanning realizes two dimension heat sound tomography (M.H.Xu, G.Ku, and L.H.Wang, " Microwave-induced thermoacoustic tomography using multi-sector scanning; " Med.Phys., 28 (9), 1958-1963,2001.); Because need do the mechanical scanning in two orientation simultaneously, its system stability and temporal resolution are reduced greatly.Especially it is to be noted, the signals collecting of above thermal acoustic imaging method generally adopts the unit transducer, by the hot acoustical signal of different azimuth with the acquisition different directions, reconstruct the microwave absorption distribution of tissue again through complicated algorithm, have that the complicated poor stability of system structure, amount of calculation are big, shortcoming such as long expends time in, and be difficult to realize three-dimensional multi-mode joint imaging, obviously have sizable limitation in actual applications, can't satisfy the demand of actual clinical.
Summary of the invention
For solving the aforementioned problems in the prior, the purpose of this utility model provides a kind of exciting and three-dimensional sensing integrated device of biological tissue's medical diagnosis that be used for, and is specially adapted to heat sound, the ultrasonic single or associating three-dimensional imaging in fields such as breast carcinoma of early stage detection and craniocerebral injury diagnosis.
For achieving the above object, the technical scheme taked of this utility model is:
A kind ofly be used for exciting and three-dimensional sensing integrated device of breast lesion or craniocerebral injury diagnosis, excite the unit to constitute by acoustic elements and heat sound.Described acoustic elements comprise circular gear, one or more arc ultrasonic array, in the bowl-shape arc shell of ultrasonic coupling liquid is housed and sees through the protecting film of microwave.The location, top of described bowl-shape arc shell is installed described circular gear with one heart; the sidewall of bowl-shape arc shell is inlayed the described arc ultrasonic array that radian and bowl-shape arc shell are complementary from the top to the bottom, the bottom of bowl-shape arc shell combines with described protecting film sealing.Heat sound excites the unit to be made up of electromagnetic horn and waveguide.Described electromagnetic horn is positioned at the protecting film below, and the bottom of electromagnetic horn is connected with described waveguide.The lower edge of bowl-shape arc shell and the upper edge of electromagnetic horn are rotationally connected.
As a kind of embodiment of the present utility model, described bowl-shape arc shell is inlayed a described arc ultrasonic array from the top to the bottom.This excite with three-dimensional sensing integrated device when detecting, need at least just can to obtain the three-dimensional hot acoustic image of complete data around tested biological tissue Rotate 180 degree, consuming time long.
As another kind of embodiment of the present utility model, described bowl-shape arc shell is inlayed three or three the above arc ultrasonic array from the top to the bottom.This excite with three-dimensional sensing integrated device when detecting, around the less angle of tested biological tissue's rotation, can obtain the three-dimensional hot acoustic image of complete data; But owing to adopted a plurality of arc ultrasonic array, cost is higher.
This utility model preferred embodiment is that described bowl-shape arc shell is inlayed two described arc ultrasonic array from the top to the bottom.This utility model more preferably two described arc ultrasonic array angles be 90 degree be embedded on the bowl-shape arc shell.This preferably excite with three-dimensional sensing integrated device when detecting, revolve around tested biological tissue and to turn 90 degrees, can obtain the three-dimensional hot acoustic image of complete data; Detect weak point consuming time, cost is reasonable.
Certainly, it will be appreciated by those skilled in the art that in actual detected does not need under the complete data conditions, and above-mentioned exciting with three-dimensional sensing integrated device only need be rotated littler angle around tested biological tissue.
Each arc ultrasonic array described in the utility model can contain 512,256 or 128 array elements, and the seam at quarter between the array element is wide to be 0.03mm.
Arc ultrasonic array described in the utility model can receive only hot acoustical signal; Also can link to each other with impulse voltage generator by variable connector, the excitation of timesharing ground produces ultrasonic signal, receives ultrasound echo signal and receive hot acoustical signal.
This utility model is connected with drive motors such as circular gear with after external equipment links to each other, and waveguide is connected with microwave generator, and arc ultrasonic array is connected with TT﹠C system etc., can realize the three-dimensional thermal acoustic imaging of tested biological tissue; If described TT﹠C system comprises impulse voltage generator, then can realize heat sound, the ultrasonic in combination three-dimensional imaging of tested biological tissue.
This utility model work process is: tested biological tissue enters in the bowl-shape arc shell by open top and is immersed in the ultrasonic coupling liquid, the pulse microwave of propagating along waveguide is radiated the various piece of tested biological tissue after by protecting film, and tested biological tissue is stimulated and produces hot acoustical signal; Arc ultrasonic array is driven round tested biological tissue by external impetus by circular gear and rotates, and the hot acoustical signal of all directions realizes exciting and sensing of three-dimensional hot acoustical signal in receiving simultaneously.When arc ultrasonic array also is connected with impulse voltage generator, when described arc ultrasonic array is rotated around tested biological tissue, the excitation of timesharing ground produces ultrasonic signal, receives ultrasound echo signal and receive hot acoustical signal, thereby realizes exciting and sensing of three-dimensional heat sound and ultrasonic signal.
Compared with prior art, the utlity model has following advantage:
(1) compares with the disclosed device that can only obtain two-dimentional hot acoustic image of prior art, this utility model can obtain three-dimensional heat sound, the ultrasonic signal of tested biological tissue, and exciting with the three-dimensional imaging signal with sensing integrated, realized the miniaturization and the practicability of structure, system structure is stable and portable.
(2) compare with the hot sonic transducer of three-dimensional imaging of the employing unit probe put down in writing in the background technology, this utility model substitutes traditional unit probe with arc ultrasonic array, effectively raises the time and the spatial resolution of system sensing.
(3) sensing device of the present utility model is for doing the arcs of recesses structure of circular scanning, except that mammary gland and cranium brain, also can be widely used in 3 D medical imaging field such as the growth of other irregular projective structure tissue or toy and lesion detection.
Description of drawings
Fig. 1 is the structural representation of this utility model embodiment 1.
Fig. 2 is the upward view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is specified; those skilled in the art are to be understood that device size described in the utility model is not limited to following embodiment; can adjust according to practical situation, but all in the scope of this utility model protection.
Embodiment 1
As illustrated in fig. 1 and 2, be used for exciting and three-dimensional sensing integrated device of mammary gland 3 D medical diagnosis, excite the unit to constitute, comprise following element by acoustic elements and heat sound:
1. circular gear, 2. arc ultrasonic array, 3. bowl-shape arc shell, 5. protecting film, 6. electromagnetic horn, 7. waveguide.Wherein circular gear 1, arc ultrasonic array 2, bowl-shape arc shell 3 and protecting film 5 constitute acoustic elements, and electromagnetic horn 6 and waveguide 7 are formed heat sound and excited the unit.
Bowl-shape arc shell 3 tops and bottom all are circular open, and its top diameter is 30cm, and the location is installed circular gear 1 with one heart.The number of teeth of the processing of circular gear 1 is 48.Inlaying two angles on the sidewall of bowl-shape arc shell 3, from the top to the bottom is the arc ultrasonic array 2 of 90 degree, the mid frequency of each arc ultrasonic array is 2.5MHz, relative bandwidth is 75%, area is 100mm * 10mm * 0.8mm, contain 128 array elements, the seam at quarter between the array element is wide to be 0.03mm.Bowl-shape arc shell 3 base diameters are 5cm, combine with protecting film 5 sealings.Protecting film 5 can be protected heat sound to excite the unit and can see through microwave simultaneously.Fill ultrasonic coupling liquid 4 in the bowl-shape camber line shell 3.Electromagnetic horn 6 is housed below protecting film 5, and electromagnetic horn 6 bottoms are connected with waveguide 7.The upper edge of the lower edge of bowl-shape arc shell 3 and electromagnetic horn 6 is rotationally connected.
Tested mammary gland 8 enters in the bowl-shape arc shell 3, is immersed in the ultrasonic coupling liquid 4.Pass through electromagnetic horn 6 along what waveguide 7 was propagated through coupled 1.2GHz pulse microwave, see through protecting film 5 and be radiated exciting light acoustical signal on the tested mammary gland 8.Acoustic elements drives by external impetus and does the circumference rotation, receives the hot acoustical signal in each orientation; Arc ultrasonic array 2 also is connected with the impulse voltage generator of outside, and its timesharing ground excitation produces ultrasonic signal and receives ultrasound echo signal; Described hot acoustical signal, ultrasound echo signal conduct to the external signal data treatment facility, thereby realize the heat sound of tested mammary gland, ultrasonic single or associating three-dimensional imaging.
Embodiment is used for exciting and three-dimensional sensing integrated device of mammary gland 3 D medical diagnosis for 2 one kinds, with embodiment 1 structural similarity, difference is: an arc ultrasonic array 2 is embedded on the sidewall of bowl-shape arc shell 3, the mid frequency of described arc ultrasonic array 2 is 2.5MHz, relative bandwidth is 75%, area is 100mm * 10mm * 0.8mm, contains 512 array elements, and the seam at quarter between the array element is wide to be 0.03mm.
Present embodiment is described to be used for exciting and three-dimensional sensing integrated device of mammary gland 3 D medical diagnosis, and the outside does not have impulse voltage generator to connect, and only receives hot acoustical signal, realizes the heat sound three-dimensional imaging of tested mammary gland.
Embodiment is used for exciting and three-dimensional sensing integrated device of cranium brain 3 D medical diagnosis for 3 one kinds, and with embodiment 1 structural similarity, difference is: the top diameter of bowl-shape arc shell 3 is 65cm, and the number of teeth of the processing of circular gear 1 is 120.Two arc ultrasonic array 2 angles be 90 degree be fixed on the sidewall of bowl-shape arc shell 3, each arc ultrasonic array 2 contains 256 array elements, and the seam at quarter between the array element is wide to be 0.03mm, and its mid frequency is 3.5MHz, relative bandwidth is 75%, and area is 80mm * 10mm * 0.8mm.
Embodiment is used for exciting and three-dimensional sensing integrated device of cranium brain 3 D medical diagnosis for 4 one kinds, and with embodiment 1 structural similarity, difference is: the top diameter of bowl-shape arc shell 3 is 65cm, and the number of teeth of the processing of circular gear 1 is 120.Three arc ultrasonic array 2 circumference are fixed on the sidewall of bowl-shape arc shell 3 symmetrically.
Claims (5)
1. one kind is used for exciting and three-dimensional sensing integrated device of biological tissue's medical diagnosis, it is characterized in that: described exciting with three-dimensional sensing integrated device excites the unit to constitute by acoustic elements and heat sound; Described acoustic elements comprise circular gear (1), one or more arc ultrasonic array (2), in the bowl-shape arc shell (3) of ultrasonic coupling liquid (4) is housed and sees through the protecting film (5) of microwave; The location, top of described bowl-shape arc shell (3) is installed described circular gear (1) with one heart, the sidewall of bowl-shape arc shell (3) is inlayed the described arc ultrasonic array (2) that radian and bowl-shape arc shell (3) are complementary from the top to the bottom, the bottom of bowl-shape arc shell (3) combines with described protecting film (5) sealing; Heat sound excites the unit to be made up of electromagnetic horn (6) and waveguide (7); Described electromagnetic horn (6) is positioned at protecting film (5) below, and the bottom of electromagnetic horn (6) is connected with described waveguide (7); The upper edge of the lower edge of bowl-shape arc shell (3) and electromagnetic horn (6) is rotationally connected.
2. according to claim 1 exciting and three-dimensional sensing integrated device is characterized in that: the sidewall of described bowl-shape arc shell (3) is inlayed a described arc ultrasonic array (2) from the top to the bottom.
3. according to claim 1 exciting and three-dimensional sensing integrated device is characterized in that: the sidewall of described bowl-shape arc shell (3) is inlayed two described arc ultrasonic array (2) from the top to the bottom.
4. according to claim 3 exciting and three-dimensional sensing integrated device is characterized in that: the angle of described two arc ultrasonic array (2) is 90 degree.
5. according to claim 1 exciting and three-dimensional sensing integrated device is characterized in that: the sidewall of described bowl-shape arc shell (3) is inlayed three or three the above arc ultrasonic array (2) from the top to the bottom.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020146889 CN201624673U (en) | 2010-04-01 | 2010-04-01 | Excitation and thee-dimensional sensing all-in-one device for biological tissue medical diagnosis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201020146889 CN201624673U (en) | 2010-04-01 | 2010-04-01 | Excitation and thee-dimensional sensing all-in-one device for biological tissue medical diagnosis |
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| CN201624673U true CN201624673U (en) | 2010-11-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822549A (en) * | 2010-04-01 | 2010-09-08 | 江西科技师范学院 | Excitation and three-dimensional sensing integrated device for diagnosing breast cancer or craniocerebral injury |
| CN105259426A (en) * | 2014-07-18 | 2016-01-20 | 中国科学院沈阳自动化研究所 | Radiation field spatial distribution measurement apparatus and method of thermo-acoustic effect |
| JP2017047108A (en) * | 2015-09-04 | 2017-03-09 | キヤノン株式会社 | Photoacoustic wave probe and photoacoustic apparatus provided with the same, and transducer units provided for the photoacoustic wave probe |
-
2010
- 2010-04-01 CN CN 201020146889 patent/CN201624673U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822549A (en) * | 2010-04-01 | 2010-09-08 | 江西科技师范学院 | Excitation and three-dimensional sensing integrated device for diagnosing breast cancer or craniocerebral injury |
| CN101822549B (en) * | 2010-04-01 | 2011-06-22 | 江西科技师范学院 | Excitation and three-dimensional sensing integrated device for diagnosing breast cancer or craniocerebral injury |
| CN105259426A (en) * | 2014-07-18 | 2016-01-20 | 中国科学院沈阳自动化研究所 | Radiation field spatial distribution measurement apparatus and method of thermo-acoustic effect |
| JP2017047108A (en) * | 2015-09-04 | 2017-03-09 | キヤノン株式会社 | Photoacoustic wave probe and photoacoustic apparatus provided with the same, and transducer units provided for the photoacoustic wave probe |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101110 Effective date of abandoning: 20110622 |