CN102743192B - Annular three-dimensional ultrasonic probe for endoscopy and preparation method thereof - Google Patents
Annular three-dimensional ultrasonic probe for endoscopy and preparation method thereof Download PDFInfo
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- CN102743192B CN102743192B CN201210229856.7A CN201210229856A CN102743192B CN 102743192 B CN102743192 B CN 102743192B CN 201210229856 A CN201210229856 A CN 201210229856A CN 102743192 B CN102743192 B CN 102743192B
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Abstract
The invention discloses a preparation method of an annular three-dimensional ultrasonic probe for an endoscopy. The preparation method comprises the steps of: (1) preparing a piezoelectric cylinder; (2) fixedly sleeving an insulating rod and an insulating cylinder on an inner hole and the periphery of the piezoelectric cylinder respectively, cutting out a plurality of axial grooves on the peripheries of the insulating rod and the insulating cylinder; (3) cutting the piezoelectric cylinder, namely cutting the insulating cylinder and the piezoelectric cylinder between the grooves along the circumference on the periphery of the insulating cylinder, cutting the piezoelectric cylinder into a plurality of piezoelectric units, wherein a gap exists between the piezoelectric units; finally encapsulating to obtain the three-dimensional ultrasonic probe. The invention also discloses the annular three-dimensional ultrasonic probe for the endoscopy. According to the invention, the problem that each array element cannot be concentrically and irregularly arranged at unequal intervals caused by a traditional method of fabricating all array elements and then encircling into a loop is solved. Meanwhile, the coaxial cable signal wires are arranged by the groove, and the problem of complicated operation in a traditional wiring process is solved.
Description
Technical field
The invention belongs to medical ultrasound image apparatus field, be specifically related to a kind of ring-type three dimensional ultrasound probe through scope and preparation method thereof.
Background technology
Through scope (gastroscope, peritoneoscope, colonoscope) ultrasonic technique, in clinical medicine application, play an important role always.Compare with external supersonic, through EUS, can avoid subcutaneous fat, enteric cavity gas and skeleton etc. on hyperacoustic impact and interference.
In recent years, the growth momentum of three-dimensional ultrasound is swift and violent, by three-D ultrasonic and through EUS, merges and has become developing direction.Through scope three-D ultrasonic, both can improve resolution and the third dimension of ultrasonoscopy, also can Enhanced Imaging real-time, can in operation, provide real-time navigation for doctor.
The preparation of two dimensional ultrasound array is that the important ring in scope three-dimensional ultrasound is also difficult point place.The ring-type two-dimensional array of surveying forward, not only can present real-time three-dimensional ultrasound pattern, and due to its special hollow structure, also can organically incorporate optic probe or insert operating theater instruments and be convenient to, through the carrying out of endoscope minimally invasive operation, therefore have a extensive future.
At present, the preparation method of existing two dimensional ultrasound array is generally and first makes array element one by one, then manual being arranged in the form of a ring on cylinder.The method trouble is consuming time, the more difficult array element equal and opposite in direction of accomplishing made, and quality is uneven, is difficult to large-scale production and application, and is difficult to guarantee that each array element is concentric, neat, equidistantly arranges, and this will affect the performance of prepared probe.
Summary of the invention
One of object of the present invention is to provide a kind of preparation method for the ring-type three dimensional ultrasound probe through scope, adopt directly the mode that cuts out a plurality of piezoelectricity array elements from piezoelectric ceramics annulus or piezoelectric monocrystal annulus, solved that traditional approach adopts first make each array element that all array element causes around the method for lopping again cannot be concentric, not neat, the problem that unequal-interval is arranged, simultaneously, employing utilizes the gear-like grid coaxial cable holding wire of arranging, and cut subsequently the mode that in the process of array element, holding wire electricity is disconnected, solve in traditional wired process array element and holding wire one by one and gone the problem of the complex operations of spot welding.
Realize the technical scheme that object of the present invention adopts as follows:
A preparation method for the ring-type three dimensional ultrasound probe through scope, is characterized in that, comprises the steps:
First, prepare piezoelectricity cylinder: in cylindric piezoelectric surfaces externally and internally plated electrode polarization, then pour into back lining materials and matching layer material and process cutting drilling on the piezoelectric after polarization is processed, forming piezoelectricity cylinder.
Secondly, processing insulating bar and insulating concrete cylinder, fix insulating bar, piezoelectricity cylinder and insulating concrete cylinder from inside to outside successively, in insulating bar butt end outside and insulating concrete cylinder outside, cuts out vertically gear-like grid groove and in groove, arrange cable signal line.
Finally, insulating bar is fixed on rotary apparatus, cuts out ring-type two-dimensional array, insert decoupling material, evacuation solidifies, and bores aerial heart sticking plaster;
Encapsulation above-mentioned material, can obtain through scope ring-type three dimensional ultrasound probe.
As a further improvement on the present invention, when processing insulating bar, make thick one end, insulating bar one end thin, make taper end external diameter consistent with cylindric piezoelectric internal diameter, butt end is convenient to be fixed on rotary apparatus.During processing insulating concrete cylinder, make insulating concrete cylinder internal diameter consistent with cylindric piezoelectric external diameter.
It is a kind of for the ring-type three dimensional ultrasound probe through scope that two of object of the present invention is to provide, and it mainly comprises:
Some N of concentric and equidistant arrangement with conduction acoustic impedance matching layer piezoelectricity array element, piezoelectricity array element can be selected various piezoelectric ceramics and monocrystalline piezoelectric material, the number N of piezoelectricity array element can be 32,64,128 even more;
Each piezoelectricity array element is all with the back lining materials of conduction, and back lining materials is conducting and the ultrasound wave launched backward in order to absorb piezoelectricity array element each other, improves the imaging resolution of probe;
Decoupling material between each piezoelectricity array element, in order to reduce the string wave action between piezoelectricity array element;
The coaxial cable holding wire being connected with each array element, heart yearn is communicated with matching layer, and ground wire is connected with back lining materials, in order to transmit driving voltage signal and to receive echo voltage signal;
The axial notch of locating during array element with arrange coaxial cable holding wire and cutting, positioning action in order to arranging coaxial wire, while separating the heart yearn of coaxial wire and ground wire and cutting array element, the number of its gear is equal to the number of piezoelectricity array element, and all gears are accomplished equidistant and concentric arrangement.
The present invention directly cuts out a plurality of piezoelectricity array element from piezoelectric ceramics annulus or piezoelectric monocrystal annulus, replace at present general adopt make all array element again around the method for lopping, avoided each array element causing in the cylindrical process of a plurality of piezoelectricity array element manual arrangement problem such as cannot concentric, neat, equidistantly arrange.Utilize the gear-like ring-type grid coaxial cable holding wire of arranging, can make concentric and each array element of equally spaced alignment of all holding wires arrange, only whole holding wires need be connected to piezoelectric and in the process of cutting subsequently array element, make each holding wire electricity disconnect, save array element and holding wire one by one and go spot weld operation.The ingenious combination of rotary apparatus and joint line cutting machine, can accurately control cutting by rotating, and obtains equal size with equally spaced each array element.Therefore, this kind of method optimized technical process, improved development efficiency, saved time cost, simply effective.
Accompanying drawing explanation
Fig. 1 is of the present invention through scope ring-type three dimensional ultrasound probe structural representation.
Fig. 2 is the sectional view through scope ring-type three dimensional ultrasound probe of the present invention.
Fig. 3 is in order to device (use of joint line cutting machine) fixing and rotating annular three-dimensional ultrasonic probe body and ring-type grid main body.
The gear-like ring-type grid schematic diagram of Fig. 4 for locating during array element in order to arrange coaxial cable holding wire and cutting.
Fig. 5 is through the flow chart of the preparation method of scope ring-type three dimensional ultrasound probe.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but above-described embodiment is only exemplary, does not form limitation of the invention.
A kind of method of production through scope ring-type three dimensional ultrasound probe of the present embodiment, comprises following concrete steps:
(1) Design and Machining attenuate piezoelectric, lower surface plated electrode the processing that polarizes thereon, selected piezoelectric can be piezoelectric ceramics and piezoelectric monocrystal etc.
(2) on the piezoelectric end face after polarization is processed, pour into back lining materials and matching layer material processing and be thinned to desired thickness, then process cutting drilling and form cylindric piezoelectric (piezoelectricity cylinder).
(3) processing insulating bar and insulating concrete cylinder, and three is fixing successively.Preferably thick one end, one end is thin for the insulating bar of processing, and thin one end size is consistent with the internal diameter of cylindric piezoelectric, and thick one end is used for being fixed on rotary apparatus.The internal diameter of the insulating concrete cylinder of processing is consistent with the external diameter of cylindric piezoelectric, and one end consistent size that the external diameter of insulating cylinder and insulating bar are thick, as Fig. 4, wherein 401 is insulating concrete cylinder, 402 and 403 is insulating bar, 402 butt ends that are insulating bar wherein, 403 taper ends that are insulating bar.
(4) cut out gear-like cloth line groove wiring.Insulating concrete cylinder 401 is enclosed within outside cylindric piezoelectric, insulating bar is inserted in cylindric piezoelectrics, and three is fixed, guarantee three coaxial and piezoelectric matching layer and insulating bar and insulating concrete cylinder end face, outside insulating bar butt end outside and insulating concrete cylinder, with wire cutting machine vertically line cut out groove, each groove is at end face, be and be circumferentially evenly distributed on insulating bar butt end outside and insulating concrete cylinder outer peripheral face, similar gear-like grid.Its further groove preferably connects both ends of the surface, so that wiring.Groove number is with identical through the array element number of scope three dimensional ultrasound probe, arranges the cable signal line identical with array element number through scope three dimensional ultrasound probe in gear-like grid groove.
Adopt the wiring of gear-like groove that holding wire is connected with piezoelectricity cylinder, after wiring through big or small equally spaced piezoelectricity array elements such as the line cutting to cylindric piezoelectric not only can obtain, can also make naturally electricity disconnection between holding wire, the one-one relationship that forms array element and holding wire, this just saves the spot weld operation of going to array element and wire one by one.
Preferably use conducting resinl (or steaming gold) that the ground wire of coaxial cable holding wire is connected with back lining materials, coaxial signal line heart yearn is connected with matching layer.In the present embodiment, particularly preferably use the method for steaming gold electrode, the heart yearn of all coaxial cables is communicated with piezoelectric matching layer, through cutting array element process afterwards, between each heart yearn, electricity disconnects; The ground wire of all coaxial cables is communicated with on back lining materials with conducting resinl.
Insulating bar butt end is fixed on rotary apparatus, with wire cutting machine, cuts out ring-type two-dimensional array, each coaxial signal line heart yearn disconnects naturally, inserts decoupling material, and evacuation bubble removing also solidifies, and bores the sticking plaster of the aerial heart, and encapsulation obtains three dimensional ultrasound probe.
As Fig. 3,301 is the ring-type three dimensional ultrasound probe in the present embodiment, and 302 is the metal cylinder on rotary apparatus, works to support cutting main body.303 is swivel head, is designed with scale, can carry out the Spin Control of accurate angle in 360 degree.Swivel head is fixed on bearing 304, and the outstanding metal cylinder in swivel head left side partly passes the circular hole at hold-down support 304 centers, is connected with cutting main body 301.It should be noted that, must guarantee that above each parts are in concentric position, the degree of accuracy in the time of just guaranteeing to cut.The bottom of hold-down support is smooth plane, can the Cutting platform by vac sorb cutting on line machine on.
Fig. 4 shows is the groove of locating when arranging coaxial cable holding wire and cutting array element in the present embodiment, can select the plastic material of easy cutting processing and be prepared from wire cutting machine cutting in conjunction with the device of Fig. 3 design.For example, first process the thin insulating bar of an insulating concrete cylinder 401 and thick one end, an one end, as shown in Figure 4: butt end is 402, taper end is 403.Insulating concrete cylinder internal diameter size is consistent with the outside dimension of cylindric piezoelectric, and insulating bar taper end size is consistent with cylindric piezoelectric outside dimension, insulating concrete cylinder outside dimension and insulating bar butt end consistent size.Cylindric piezoelectric will be fixed between insulating concrete cylinder and insulating bar taper end, and insulating bar butt end will be fixed on rotary apparatus.According to the array element number N of ring-type two-dimensional array ultrasonic probe, N can be 32,64,128 even more, the present invention does not limit, 360 °/N of every anglec of rotation, carry out primary line cutting, cutting groove depth and width are slightly larger than the diameter of coaxial cable holding wire, to arrange coaxial cable holding wire in grooving, complete after N line cutting of a circle, obtain the shape shown in Fig. 4.
In the present embodiment for the ring-type three dimensional ultrasound probe through scope, comprise ring-type piezoelectricity battle array 101 and insulation sleeve 105.
Wherein, ring-type piezoelectricity battle array 101 comprises a plurality of piezoelectric units, and each piezoelectric unit is arrayed and forms the concentric ring with central through hole, in order to send or to receive ultrasound wave, between each piezoelectric unit, has gap, for filling, solidifies decoupling material 103.Insulation sleeve 105 is sleeved on described ring-type piezoelectricity battle array 101 peripheries, is evenly arranged at intervals with vertically groove, for the accommodating signal cable of arranging on it;
In the central through hole of ring-type piezoelectricity battle array 101, be socketed with insulating bar 402,403, one end diameter of this insulating bar 402,403 is less, and other end diameter is larger, and wherein less end 402 is sleeved in the central through hole of piezoelectricity cylinder.The large end end 403 of insulating bar is along circumferentially also having cut a plurality of axial notches, and it is corresponding one by one with the groove on insulation sleeve 105.
One end end face of ring-type piezoelectricity battle array 101 covers backing layer 102, and other end end face covers matching layer.
Claims (2)
1. for a preparation method for the ring-type three dimensional ultrasound probe through scope, it is characterized in that, comprise the steps:
In cylindric piezoelectric both ends of the surface plated electrode polarization, then the end face after polarization covers backing layer, and other end covers matching layer, and processing is thinned to desired thickness, then processes cutting drilling and forms piezoelectricity cylinder;
Fixing suit insulating bar and insulating concrete cylinder respectively in the endoporus of described piezoelectricity cylinder and periphery, and described insulating bar with respect to the suit outer peripheral face of the other end of this piezoelectricity cylinder one end and the outer peripheral face of described insulating concrete cylinder on cut out a plurality of axial notches, each axial notch was upwards uniformly distributed in the week of corresponding outer peripheral face, for the accommodating signal cable of arranging;
Between each groove on the outer peripheral face of described insulating concrete cylinder, axially cut described insulating concrete cylinder and piezoelectricity cylinder, make described piezoelectricity cylinder be split into a plurality of piezoelectric units, and fill decoupling material in the gap between each piezoelectric unit, the axial notch of the outer peripheral face of described insulating bar outer peripheral face and insulating concrete cylinder is corresponding one by one, and its quantity equates with the number of described piezoelectric unit;
Encapsulation, can obtain described for the ring-type three dimensional ultrasound probe through scope;
Wherein, one end diameter of described insulating bar is less, and other end diameter is larger, and wherein less end is sleeved in the endoporus of piezoelectricity cylinder, and larger other end outer peripheral face has described axial notch.
2. the preparation method for the ring-type three dimensional ultrasound probe through scope according to claim 1, is characterized in that, described insulating bar has central through hole.
3
.preparation method for the ring-type three dimensional ultrasound probe through scope according to claim 1 and 2, is characterized in that, described piezoelectricity cylinder is piezoelectric ceramics or monocrystalline piezoelectric material.
4
.preparation method for the ring-type three dimensional ultrasound probe through scope according to claim 1 and 2, it is characterized in that, the larger end of described insulating bar diameter is arranged on wire cutting machine, by driving insulating bar to rotate, realizes the cutting to described axial notch and described piezoelectricity cylinder.
5
.a ring-type three dimensional ultrasound probe for through scope, comprising:
Ring-type piezoelectricity battle array (101), it comprises a plurality of piezoelectric units, each piezoelectric unit is arrayed and forms the concentric ring with central through hole, in order to send or to receive ultrasound wave;
Insulation sleeve (105), it is sleeved on described ring-type piezoelectricity battle array (101) periphery, is evenly arranged at intervals with vertically axial notch, for the accommodating signal cable of arranging on it;
It is characterized in that, between described each piezoelectric unit, have gap, for filling curing decoupling material (103);
Wherein, in the central through hole of described ring-type piezoelectricity battle array (101), be socketed with insulating bar (402,403), one end diameter of this insulating bar (402,403) is less, other end diameter is larger, wherein less end (402) is consistent with the internal diameter of piezoelectricity cylinder, is sleeved in the described central through hole of piezoelectricity cylinder;
One end end face of described ring-type piezoelectricity battle array (101) is coated with backing layer (102), and other end end face covers matching layer, for being connected with the ground wire of signal cable respectively and being connected with the heart yearn in signal cable;
The large end end (403) of described insulating bar (402,403) is along circumferentially having cut a plurality of axial notches, and it is corresponding one by one with the axial notch on insulation sleeve (105), for the accommodating signal cable of arranging.
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| CN105640588B (en) * | 2014-12-03 | 2018-10-16 | 中国科学院深圳先进技术研究院 | The extensive ultrasonic plane array of deep brain stimulation and neuromodulation probe and preparation method thereof |
| CN105708491B (en) * | 2014-12-03 | 2018-11-20 | 中国科学院深圳先进技术研究院 | For the ultrasonic face of deep brain stimulation and neuromodulation battle array probe and preparation method thereof |
| CN110215230B (en) * | 2019-06-27 | 2021-11-26 | 深圳市德力凯医疗设备股份有限公司 | Preparation method of bimodal focusing annular array probe and annular array probe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101912250A (en) * | 2010-05-24 | 2010-12-15 | 华南师范大学 | Intravascular photoacoustic and ultrasonic double-mode imaging endoscope device and imaging method thereof |
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| JP3950533B2 (en) * | 1997-11-28 | 2007-08-01 | ジーイー横河メディカルシステム株式会社 | Ultrasonic probe and method for manufacturing ultrasonic probe |
| JP4624921B2 (en) * | 2003-04-01 | 2011-02-02 | オリンパス株式会社 | Ultrasonic transducer |
| JP4601471B2 (en) * | 2004-11-12 | 2010-12-22 | 富士フイルム株式会社 | Ultrasonic transducer array and manufacturing method thereof |
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| JP2008212453A (en) * | 2007-03-06 | 2008-09-18 | Kobe Kogyo Shikenjiyou:Kk | Ultrasonic probe for intravascular diagnosis and its manufacturing method |
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| CN101912250A (en) * | 2010-05-24 | 2010-12-15 | 华南师范大学 | Intravascular photoacoustic and ultrasonic double-mode imaging endoscope device and imaging method thereof |
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Inventor after: Zhu Benpeng Inventor after: Sun Shiyue Inventor after: Guo Wanke Inventor after: Guo Ruichao Inventor before: Zhu Benpeng Inventor before: Guo Wanke Inventor before: Guo Ruichao |
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