CN106880908A - A kind of single-curved surface strip power ultrasonic device with central rotation imaging probe - Google Patents

Abstract

The invention discloses a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe, it includes ultrasonic focusing energy transducer, supporting structure, water pocket and ultrasound imaging probe, the ultrasonic focusing energy transducer is symmetrically sealed in the left and right sides inside supporting structure by silicon rubber, the water pocket being formed around as the full inclusion component of waterproof of supporting structure, the full couplant of space filling between water pocket and supporting structure, the upper surface of the supporting structure is the single-curved surface of arc-shaped, and supporting structure center is provided with manhole, the ultrasound imaging probe is placed with the through hole.Transducer of the present invention is scanned into plane, and focal zone is concentrated, treatment plane and imaging probe imaging plane are just in approximately the same plane；Imaging probe and patient body are closer to the distance in the present invention simultaneously, are conducive to ultrasonic imaging, can improve the image definition in therapeutic process.

Description

A kind of single-curved surface strip power ultrasonic device with central rotation imaging probe

Technical field

The present invention relates to a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe, belong to medicine equipment Technical field.

Background technology

In the application of medical field, a kind of common mode is exactly from transmitting focusing work(in human body extroversion human body to power ultrasonic Rate ultrasonic wave, specific region forms larger energy accumulating and changes the tissue biological's characteristic in the region in human body, realizes Treat the purpose of disease.Ultrasonic transducer therein is used to convert electric energy to acoustic energy and be transmitted into human body, currently conventional Ultrasonic transducer is typically using composition forms such as single transducer, multiple transducer arrays, hundreds of transducer arrays.Either Which kind of mode, all uses spherical cap shape substantially, and being provided with through hole in spherical crown bottom centre position is positioned to as guiding ultrasonic probe.

When spherical crown shape ultrasonic transducer is with human contact, there is certain distance bottom with human body surface, makes before the treatment Need that imaging probe is stretched out a segment distance and tried one's best during with imaging probe to shorten the distance and between human body, when being treated, in order to not Power ultrasonic is blocked, imaging probe will be retracted, increased with target area distance, influence Real Time Observation effect, matrix of the present invention Structure can fit with human body, and imaging probe is without stretching out retraction.

For multiple transducer arrays, hundreds of transducer arrays, when the arrangement mode using spherical crown shape, list therein Individual transducer is typically using the shape such as circle, polygon, trapezoidal.The transducer of these shapes is entered using phased array control circuit During row acoustic beam electronic deflection, it can realize 360 degree of omnidirectional's deflections, but because its size in each direction is than larger, foundation Acoustics General Principle, its deflectable angle in each direction is smaller, have impact on practicality.Spill knot of the present invention Structure employs the mode of bar shaped transducer array, and single transducer is in elongate strip form, in the width chi of transducer unit Very little very little, with good acoustic beam deflectable property, so that carrying out acoustic beam electronic deflection in this direction possesses practicality.

The content of the invention

To overcome the shortcomings of that above-mentioned prior art is present, the invention provides a kind of single with central rotation imaging probe Noodles shape power ultrasonic device and application method.

The technical scheme that the present invention takes is as follows：

A kind of single-curved surface strip power ultrasonic device with central rotation imaging probe, it include ultrasonic focusing energy transducer, Supporting structure, water pocket and ultrasound imaging probe, the ultrasonic focusing energy transducer is by waterproof glue sealing in supporting structure The internal left and right sides, the water pocket being formed around as the full inclusion component of waterproof of the supporting structure, the water pocket and branch The full couplant of space filling between support structure part, the upper surface of the supporting structure is the single-curved surface of arc-shaped, and is propped up Support structure part center is provided with manhole, is placed with the ultrasound imaging probe in the manhole, the ultrasound into As probe is located in cylindrical fixture, cylindrical fixture is bonded to each other with the inwall of manhole and slidably contacts, Being provided with the rear end end of ultrasound imaging probe can drive 360 degree of mechanical transmission structures of rotation of ultrasound imaging probe.

The ultrasonic focusing energy transducer includes thin back lining components, thick backing, outer matching layer and condenser lens, the thick backing Circular arc camber is with the upper surface of condenser lens, the inside of the thin back lining components is provided with grooving, and thin back lining components pass through glue Water is pasted onto on the curved surface of thick backing, and outer matching layer is pasted onto on the curved surface of thin back lining components by glue, the condenser lens For concave inward structure and it is set with above outer matching layer and thick backing, condenser lens is simultaneously as protective layer isolation transducer inside group Part and couplant.

The centre frequency of the ultrasonic focusing energy transducer is 0.2MHz-5MHz, and relative bandwidth is not less than 50%；；The thickness Acoustic impedance range 2MRayl to the 15MRayl of backing, surface curvature radius is 5cm-25cm, and its curved surface is single-curved surface.

Glue or glue mixture are filled in the grooving, the glue is insulation class glue.The condenser lens material is Less than velocity of sound class convex lens in water, focusing radius of curvature is 5cm-25cm to the wherein velocity of sound, and center maximum gauge is 0.5mm-5mm, Or material is that wherein the velocity of sound is more than velocity of sound class concavees lens in water, focusing radius of curvature is 5cm-25cm, and center maximum gauge is 0.5mm-5mm。

The thin back lining components include thin backing, and FPC positive electrode layers, the piezoresistive material for being sequentially arranged at thin backing upper surface The bed of material, interior matching layer, FPC copper-foil conducting electricities side conductive glue are pasted on piezoelectric material layer, and FPC insulation sides are viscous with glue It is attached on thin backing, piezoelectric material layer opposite side fastens with glue interior matching layer, and cuts out a plurality of grooving by scribing machine.

Thin backing acoustic impedance range 2MRayl to the 15MRayl；The piezoelectric material layer is made pottery using emission type piezoelectricity The piezo-electricity composite material of porcelain or the 1-3/2-2 structures with it as substrate；The FPC positive electrode layers are the soft board with copper conductive layer； The interior matching layer acoustic impedance range 3MRayl-15MRayl, its width is less than piezoelectric material layer.

The depth of the grooving gos deep into thin backing to cut through piezoelectric material layer, and depth is at least up to thin backing thickness 1/2, notch width 0.05mm-0.2mm, grooving number be more than 20, array element spacing be 0.5mm-2mm, or each grooving it Between the secondary grooving that is of uniform thickness of additional depth and piezoelectric material layer, form primitive, primitive number is 1-3.

The supporting structure material is stainless steel or aluminium, and rectangular body region is drawn inside it for inlaying the focus ultrasonic Transducer, the four faces direction around ultrasonic focusing energy transducer is adjustable, make two energy transducer focus inlayed can overlap to a little or Two different points, supporting structure surface curvature radius is 5cm-25cm, matches area for treatment body surface curved surface, and it can be by upper Portion's mechanical structure carries out translational motion；Ultrasonic focusing energy transducer can by electron channel delays time to control focus depth position and partially Indexing is put；The ultrasound imaging probe is linear array, convex battle array or phased array, and primitive sum is 64-256, and centre frequency is 3MHz- 8MHz, it can carry out 360 degree of rotations by top mechanical transmission structure；Couplant is loaded in the water pocket and serves as transducer and water Acoustic propagation transition medium between capsule, water pocket material is to meet biocompatible materials；The couplant is de aerated water, and it can be with Flowing is circulated by external peristaltic pump.

The mechanical transmission structure includes motor, driving gear and driven gear, the driving gear and driven gear phase Mutually engagement, driving gear is connected with motor drive shaft, and driven gear is connected with ultrasound imaging probe, and the motor receives control dress The control put simultaneously drives driven gear to drive ultrasound imaging probe to be rotated again by driving gear.

The circular fixture, its inner surface configuration and ultrasound imaging probe case surface shape are complementary ensuring to paste completely Close, and using silicon rubber bonding ultrasound imaging probe to circle fixture inside, its outer surface is brought into close contact with supporting structure And seal；Sealing ring is provided with circular fixture outer surface, the sealing ring is stuck in the groove that the outer surface of circular fixture is held successfully And be pressed into the manhole at supporting structure center, it is excessive to coordinate guarantee slidably and sealing.

The beneficial effects of the invention are as follows：Transducer of the present invention is scanned into plane, and focal zone is concentrated, treatment plane and into As probe imaging plane is just in approximately the same plane, although and spherical crown shape therapeutic system can be with stereoscan, during stereoscan There is most of point not in the monitoring surface of B ultrasonic, form touch system, increase unpredictable danger.Meanwhile, it is every in spherical crown shape therapeutic system Individual transducer is larger in the size of all directions, and attainable acoustic beam electronic deflection angle is smaller, and practicality is very poor.

Supporting construction surface curvature of the present invention is variable to match body surface curved surface, and supporting structure empties cuboid region direction It is variable, synthesize total focus with ultrasonic focusing energy transducer focus, make the more convenient regulation in total focal position, on the other hand expand transducing The scope of design of device parameter.

The present invention processes relevant range using the heat that focus ultrasonic is produced, and this regional temperature is risen to certain numerical value And continue for some time and reach therapeutic purposes.Couplant is wherein loaded to serve as the transition medium between transducer and water pocket and dissipate Except the heat that ultrasonic transducer is produced.

Ultrasound imaging probe of the invention uses rotation mode, and it is compared to by the way of translation, and Mechanical course is simpler Just.

Brief description of the drawings

Fig. 1 is overall structure diagram of the present invention.

Fig. 2A is imaging probe typical outside view, show convex array probe.

Fig. 2 B are imaging probe working method schematic diagram herein.

Fig. 2 C are the emission array structural representation inside convex array probe.

Fig. 3 is Vltrasonic device top view.

Fig. 4 is Vltrasonic device profile.

Fig. 5 is ultrasonic focusing energy transducer transverse cross-sectional view.

Fig. 6 is ultrasonic focusing energy transducer longitudinal sectional drawing.

Fig. 7 is application scenario diagram when Vltrasonic device is treated.

In figure：1- ultrasonic focusing energy transducers, 2- water pockets, 3- couplants, 4- supporting structures, 5- ultrasound imaging probes, 6- Condenser lens, the outer matching layers of 7-, the thin backings of 8-, 9- thickness backings, matching layer in 10-, 11- piezoelectric material layers, 12- groovings, 13- FPC positive electrode layers, 14- motors, 15- driving gears, 16- driven gears, 17- cylindrical fixtures, 18- sealing rings.

Specific embodiment

The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe, it includes Ultrasonic focusing energy transducer 1, supporting structure 4, water pocket 2 and ultrasound imaging probe 5, the ultrasonic focusing energy transducer 1 pass through silicon rubber Glue is symmetrically sealed in the left and right sides inside supporting structure 4, and the supporting structure 4 is formed around as the full inclusion of waterproof The water pocket 2 of component, the full couplant 3 of space filling between the water pocket 2 and supporting structure 4, the supporting structure 4 it is upper Surface is the single-curved surface of arc-shaped, and the center of supporting structure 4 is provided with manhole, is placed with the through hole described Ultrasound imaging probe 5, the ultrasound imaging probe 5 is placed in cylindrical fixture 17, and fixture 17 is interior with manhole Wall is bonded to each other and slidably contacts, and being provided with the rear end end of ultrasound imaging probe 5 can drive 360 degree of ultrasound imaging probe to turn Dynamic mechanical transmission structure.Wherein mechanical transmission structure includes motor 14, driving gear 15 and driven gear 16, the driving tooth Wheel 15 is intermeshed with driven gear 16, and driving gear 15 is connected with the power transmission shaft of motor 14, and driven gear 16 is visited with ultrasonic imaging Head connection, the motor 14 receive the control of control device and by driving gear 15 drive driven gear 16 drive again ultrasound into As probe 5 is rotated.

As shown in Figure 5 and Figure 6, the ultrasonic focusing energy transducer 1 includes thin back lining components, outer matching layer 7, the thick and of backing 9 The upper surface of condenser lens 6, the thick backing 9 and condenser lens 6 is circular arc single-curved surface, and the inside of the thin back lining components is opened There is grooving 12, thin back lining components are pasted onto on the curved surface of thick backing 9 by glue, the condenser lens 6 is indent arcuate structure And fully wrapped around firmly thin back lining components, outer matching layer 7 and the thick top of backing 9, condenser lens 6 is simultaneously as protective layer isolation transducing Device intraware and couplant 3.

Used as the preferred of the present embodiment, the centre frequency of the ultrasonic focusing energy transducer 1 is 0.2MHz-5MHz, opposite band It is wide to be not less than 50%；Acoustic impedance range 2MRayl to the 15MRayl of the thick backing 9, surface curvature radius is 5cm-25cm, Its curved surface is circular arc single-curved surface.Glue or glue mixture are filled in the grooving 12, the glue is insulation class glue.

Used as the preferred of the present embodiment, the material of the condenser lens 6 is that wherein the velocity of sound is less than velocity of sound class convex lens in water, is gathered Burnt radius of curvature is 5cm-25cm, and center maximum gauge is 0.5mm-5mm, or material is that the wherein velocity of sound is recessed more than velocity of sound class in water Lens, focusing radius of curvature is 5cm-25cm, and center maximum gauge is 0.5mm-5mm.

Used as the preferred of the present embodiment, the thin back lining components include thin backing 8, and are sequentially arranged at the upper table of thin backing 8 The FPC positive electrode layers 13 in face, piezoelectric material layer 11, interior matching layer 10, FPC copper-foil conducting electricities side conductive glue paste piezoelectricity In material layer, FPC insulation side fastens with glue onto thin backing 8, and the opposite side of piezoelectric material layer 11 fastens with glue interior matching Layer 10, and a plurality of grooving 12 is cut out by scribing machine.

As the preferred of the present embodiment, acoustic impedance range 2MRayl to the 15MRayl of the thin backing 8；The piezoresistive material The bed of material 11 uses the piezo-electricity composite material of emission type piezoelectric ceramics or the 1-3/2-2 structures with it as substrate；The FPC positive electrodes Layer 13 is the soft board with copper conductive layer；The acoustic impedance range 3MRayl-15MRayl of the interior matching layer 10, its width is less than pressure Material layer.

Used as the preferred of the present embodiment, the depth of the grooving 12 gos deep into thin backing 8 to cut through piezoelectric material layer 11, Depth is at least up to the 1/2 of thin backing thickness, and the width 0.05mm-0.2mm of grooving 12, grooving number is more than 20, and array element spacing is 0.5mm-2mm, or the secondary grooving that additional depth is of uniform thickness with piezoelectric material layer 11 between each grooving 12, form base Unit, primitive number is 1-3.

Used as the preferred of the present embodiment, the material of the supporting structure 4 is stainless steel or aluminium, and rectangular body region is drawn inside it For inlaying the ultrasonic focusing energy transducer 1, the four faces direction around ultrasonic focusing energy transducer 1 is adjustable, the table of supporting structure 4 Curvature radius are 5cm-25cm, match area for treatment body surface curved surface, and it can carry out translational motion by top mechanical structure；Institute Stating ultrasonic focusing energy transducer 1 can be by electron channel delays time to control focus depth position and inflection point；The ultrasonic imaging is visited First 5 is linear array, convex battle array or phased array, and primitive sum is 64-256, and centre frequency is 3MHz-8MHz, and it can be passed by machinery Dynamic structure carries out 360 degree of rotations；Acoustic propagation transition Jie that couplant serves as between transducer and water pocket is loaded in the water pocket 2 Matter, the material of water pocket 2 is to meet biocompatible materials；The couplant 3 is de aerated water, and it can be carried out by external peristaltic pump Circulate.

As the preferred of the present embodiment, the circular fixture 17, its inner surface configuration and the shell table of ultrasound imaging probe 5 Face shape is complementary to ensure to fit completely, and is arrived inside circular fixture 17 using silicon rubber bonding ultrasound imaging probe 5, outside it Surface is brought into close contact and seals with supporting structure 4；Sealing ring 18 is provided with the outer surface of circular fixture 17, the sealing ring 18 blocks In the groove that the outer surface of circular fixture 17 is held successfully and be pressed into the manhole at the center of supporting structure 4, it is excessive coordinate protect Demonstrate,prove slidably and seal.

In the present invention, the method for making described focused transducer, its preparation method is：

(1) thick backing is made first, by processing arc by turning mould after mould pre-production cuboid-type material Surface；Thin backing is made again, arrives 0.3mm-2mm by being refined by lathe after mould pre-production cuboid-type material, then Lathe fine grinding arrives 0.2mm-2mm after matching layer in making；

(2) glued thin backing, piezoelectric material layer, FPC and interior matching layer constitute the thin backing group described in claim 9 Part, refines the thin back sheet in this component afterwards, makes component integral thickness for 2.0mm-5.0mm, and this group is machined by scribing , be molded for thin back lining components indent after the completion of cutting by mould afterwards and the curved surface of thick backing is fitted in by the grooving in part On, grooving is filled using glue afterwards, glued and thin wire to piezoelectric material layer both sides exposed portion, conducting resinl using conductive glue The protection of epoxy glue curing is reused after water cure thereon, its height of projection is no more than interior matching layer height；

(3) outer matching layer is fitted in the outside of interior matching layer using tool, and pour into a mould condenser lens shape using lens die Into protective layer.

As shown in fig. 7, the application method of this single-curved surface strip power ultrasonic device with central rotation imaging probe is：It is first Coupling agent for medical use (general spawn during ultrasound diagnosis) first is smeared in water pocket lower surface, is pressed onto by outside mechanical structure Focal zone top general area, opens imaging probe detection focal zone, manually the outside mechanical structure adjustment treatment probe position of control Put, make focal zone generally within imaging probe location mid-shaft, start imaging probe spinfunction, the multiple tangent planes of collection, by master Machine software process quality 3D figures, it is overall to grasp focal zone three-dimensional information, delimit area for treatment, daemon software on computer display figure Therapeutic scheme is automatically generated, therapy target position and number is formulated, automatic planning mechanical motion mode and each target spot electronics prolong Belated control focus depth position and inflection point, start treatment, and energy is continued for some time at each target spot, while using Temperature rise at algorithm monitor in real time target spot, next target spot is jumped to after reaching threshold value, continues until that all target treatments are completed, In whole therapeutic process, couplant is circulated the heat for taking away treatment probe generation in treatment by external peristaltic pump in water pocket Amount.Treatment Preliminary Results are assessed by imaging probe after completing treatment.

The basic principles, principal features and advantages of the present invention have been shown and described above.One of ordinary skill in the art It should be appreciated that the mode such as above-described embodiment protection domain that the invention is not limited in any way, all use equivalents is obtained The technical scheme for obtaining, falls within protection scope of the present invention.

Part that the present invention does not relate to is same as the prior art or can be realized using prior art.

Claims (10)

1. a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe, it is characterised in that：Including focus ultrasonic Transducer (1), supporting structure (4), water pocket (2) and ultrasound imaging probe (5), the ultrasonic focusing energy transducer (1) is by anti- Glue water-stop is in the internal left and right sides of supporting structure (4), and being formed around for the supporting structure (4) is complete as waterproof The water pocket (2) of inclusion component, the full couplant (3) of space filling between the water pocket (2) and supporting structure (4), the branch The upper surface of support structure part (4) is the single-curved surface of arc-shaped, and supporting structure (4) center is provided with manhole, The ultrasound imaging probe (5) is placed with the manhole, the ultrasound imaging probe (5) is located in cylindrical fixture (17) in, cylindrical fixture (17) is bonded to each other with the inwall of manhole and slidably contacts, in ultrasound imaging probe (5) Rear end end be provided with the mechanical transmission structures that can drive the rotation of 360 degree of ultrasound imaging probe.

2. a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe according to claim 1, it is special Levy and be：The ultrasonic focusing energy transducer (1) includes thin back lining components, thick backing (9), outer matching layer (7) and condenser lens (6), the upper surface of the thick backing (9) and condenser lens (6) is circular arc single-curved surface, and the inside of the thin back lining components is provided with Grooving (12), thin back lining components are pasted onto on the curved surface of thick backing (9) by glue, and the condenser lens (6) is indent arc Structure and fully wrapped around firmly thin back lining components, outer matching layer (7) and thick backing (9) top, condenser lens (6) is while as protection Layer isolation transducer intraware and couplant (3).

3. a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe according to claim 2, it is special Levy and be：The centre frequency of the ultrasonic focusing energy transducer (1) is 0.2MHz-5MHz, and relative bandwidth is not less than 50%；The thickness Acoustic impedance range 2MRayl to the 15MRayl of backing (9), surface curvature radius is 5cm-25cm, and its curved surface is circular arc single Face.

4. a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe according to claim 2, it is special Levy and be：Glue or glue mixture are filled in the grooving (12), the glue is insulation class glue；The condenser lens (6) Material is that wherein the velocity of sound is less than velocity of sound class convex lens in water, and focusing radius of curvature is 5cm-25cm, and center maximum gauge is 0.5mm-5mm, or material is that wherein the velocity of sound is more than velocity of sound class concavees lens in water, and focusing radius of curvature is 5cm-25cm, and center is most Big thickness is 0.5mm-5mm.

5. a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe according to claim 2, it is special Levy and be：The thin back lining components include thin backing (8), and the FPC positive electrode layers for being sequentially arranged at thin backing (8) upper surface (13), piezoelectric material layer (11), interior matching layer (10), FPC copper-foil conducting electricities side conductive glue paste piezoelectric material layer (11) on, FPC insulation side fastens with glue onto thin backing (8), and piezoelectric material layer (11) opposite side fastens with glue interior With layer (10), and a plurality of grooving (12) is cut out by scribing machine.

6. a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe according to claim 5, it is special Levy and be：Thin backing (8) acoustic impedance range 2MRayl to the 15MRayl；The piezoelectric material layer (11) is using transmitting class The piezo-electricity composite material of piezoelectric ceramics or the 1-3/2-2 structures with it as substrate；The FPC positive electrode layers (13) are that band copper is conductive The soft board of layer；Interior matching layer (10) the acoustic impedance range 3MRayl-15MRayl, its width is less than piezoelectric material layer.

7. a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe according to claim 2 or 5, its It is characterised by：The depth of the grooving (12) gos deep into thin backing (8) to cut through piezoelectric material layer (11), and depth is at least up to The 1/2 of thin backing thickness, grooving (12) width 0.05mm-0.2mm, grooving number is more than 20, and array element spacing is 0.5mm-2mm, Or the secondary grooving that additional depth is of uniform thickness with piezoelectric material layer (11) between each grooving (12), form primitive, base First number is 1-3.

8. a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe according to claim 1, it is special Levy and be：Supporting structure (4) material is stainless steel or aluminium, rectangular body region is drawn inside it poly- for inlaying the ultrasound Burnt transducer (1), the four faces direction around ultrasonic focusing energy transducer (1) is adjustable, and supporting structure (4) surface curvature radius is 5cm-25cm, matches area for treatment body surface curved surface, and it can carry out translational motion by top mechanical structure；The focus ultrasonic is changed Energy device (1) can be by electron channel delays time to control focus depth position and inflection point；The ultrasound imaging probe (5) is line Battle array, convex battle array or phased array, primitive sum is 64-256, and centre frequency is 3MHz-8MHz, and it can be entered by mechanical transmission structure 360 degree of rotations of row；The acoustic propagation transition medium that couplant serves as between transducer and water pocket, water pocket are loaded in the water pocket (2) (2) material is to meet biocompatible materials；The couplant (3) is de aerated water, and it can be followed by external peristaltic pump Circulation is moved.

9. a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe according to claim 1, it is special Levy and be：The mechanical transmission structure includes motor (14), driving gear (15) and driven gear (16), the driving gear (15) be intermeshed with driven gear (16), driving gear (15) is connected with motor (14) power transmission shaft, driven gear (16) with surpass Acoustic imaging probe connection, the motor (14) receives the control of control device and drives driven gear by driving gear (15) (16) ultrasound imaging probe (5) is driven to be rotated again.

10. a kind of single-curved surface strip power ultrasonic device with central rotation imaging probe according to claim 1, it is special Levy and be：The circular fixture (17), its inner surface configuration and ultrasound imaging probe (5) case surface shape are complementary ensuring Fit completely, and ultrasound imaging probe (5) to circular fixture (17) inside is bonded using silicon rubber, its outer surface is tied with support Component (4) is brought into close contact and seals；Sealing ring (18) is provided with circular fixture (17) outer surface, the sealing ring (18) is stuck in circle In the groove that the outer surface of shape fixture (17) is held successfully and be pressed into the manhole at supporting structure (4) center, it is excessive coordinate protect Demonstrate,prove slidably and seal.