CN202052685U - Ultrasonic focusing transducer - Google Patents
Ultrasonic focusing transducer Download PDFInfo
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- CN202052685U CN202052685U CN2011200115685U CN201120011568U CN202052685U CN 202052685 U CN202052685 U CN 202052685U CN 2011200115685 U CN2011200115685 U CN 2011200115685U CN 201120011568 U CN201120011568 U CN 201120011568U CN 202052685 U CN202052685 U CN 202052685U
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- ultrasonic transducer
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Abstract
The utility model discloses an ultrasonic focusing transducer, comprising a spherical casing, an annular piezoelectric ceramic piece and a plurality of sectional piezoelectric ceramic pieces. A spherical cap is provided with a circular hole for installation of an ultrasonic detector. The annular piezoelectric ceramic piece has a structure of a circular ring and is configured at the inner side of the spherical casing, wherein the inner circle of the circular ring and the circular hole are of the same size. The plurality of sectional piezoelectric ceramic pieces are respectively disposed at the inner side of the spherical casing to surround the outer periphery of the annular piezoelectric ceramic piece. The annular piezoelectric ceramic piece and each sectional piezoelectric ceramic piece are connected with a control unit of the ultrasonic focusing transducer, respectively. The annular piezoelectric ceramic piece and each sectional piezoelectric ceramic piece of the utility model can be controlled independently to generate ultrasonic waves, so that rays are more dispersed during the focusing operation under the condition that the therapeutic dose is guaranteed. In addition, the therapeutic dose can be selectively adjusted, without affecting the focus ablation effect. In this way, stimulations on skin and nervous tissues of therapeutic channels are reduced while the therapeutic dose is guaranteed, significantly enhancing the safety and the comfortableness and better embodying the advantages of ultrasonic non-invasive painless therapy.
Description
Technical field
The utility model relates to the focus ultrasonic transducer, particularly a kind of therapeutic medical focus ultrasonic transducer.
Background technology
The focus ultrasonic transducer has been used for medical treatment, as high strength supersonic focus oncotherapy technology is the very fast emerging medical skill of development in recent years, it is to use ultrasonic wave that patient is treated, and the focus ultrasonic transducer is the core of this technology, is directly connected to security and the result of treatment of this medical skill in clinical practice.Existing focus ultrasonic transducer is divided into unit transducer and multielement transducer two classes, and the unit transducer is divided into two kinds of planar lens shape and curved surface self focusing-types again, and present technology mainly contains following several:
Dull and stereotyped piezoelectric ceramic piece adventitious sound lens transducer is realized focusing on large aperture plane disc piezoelectric ceramic transducer and the combination of fixed sound lens, and this method causes ultrasonic attenuation big, and efficient is difficult to improve.
Phase-control focusing array formula ultrasonic transducer is installed in a large aperture rigidity with some facet piezoelectric ceramic pieces (discrete or continuous distributed) and focuses on the spherical surface body, and the normal of each piezoelectric ceramic piece is compiled in place's focus.This method focal spot is bigger, and production, installation, debugging and maintenance etc. are all very complicated, and the cost height, as: application number is 200410017185.3, phase-control focusing high intensity ultrasound transducer display.
Polynary annular secondary focusing ultrasonic transducer is fixed on several concave spherical surface piezoelectric ceramic pieces on the large circle, and its focus is separately converged at a bit, realizes secondary focusing.The defective of this method is that the process of secondary focusing aligning focus is comparatively complicated, and the sound field that is produced is inhomogeneous, influences result of treatment.As: application number is 03158000.9, many focuses multi-focus ultrasonic transducer; Application number is 200510038963.1, piezoelectric type multi array element high intensity focusing ultrasonic transducer and focus method.
Above-mentioned ultrasonic transducer is in treatment is used, disperse excessive to skin irritatin because of the ultrasonic wave ray is not enough, can not selection portion subchannel closure when entering human body can cause injury to skin or passage nerve because of the ultrasonic wave ray, thereby in clinical practice, tend to select integral body to turn down therapeutic dose, thereby have a strong impact on the effect of treatment.
Therefore, how to be implemented under the situation that guarantees therapeutic dose the ray of focusing is disperseed more, optionally to reduce ultrasonic wave be the technical problem that needs to be resolved hurrily in the industry to patient's injury to the dosage of free adjustment treatment passage.
The utility model content
Main purpose of the present utility model provides a kind of therapeutic medical focus ultrasonic transducer, be intended to be implemented under the situation that guarantees therapeutic dose that the ray of focusing is disperseed more, optionally the dosage of free adjustment treatment passage reduces the injury of ultrasonic wave to the patient.
The utility model proposes a kind of focus ultrasonic transducer, it comprises sphere shell, ring piezoelectric ceramic piece and several lobe piezoelectric ceramic pieces, wherein:
Described sphere shell, spherical crown is provided with circular hole, for ultrasonic detector is installed;
Described ring piezoelectric ceramic piece adopts cirque structure, the adaptive described sphere shell inboard that is arranged on, and the interior circle of annulus is consistent with described circular hole size;
Described lobe piezoelectric ceramic piece is separately positioned on described sphere shell inboard, is looped around on the excircle of described ring piezoelectric ceramic piece;
Described ring piezoelectric ceramic piece is connected with the control device of focus ultrasonic transducer respectively with each described lobe piezoelectric ceramic piece.
Preferably, described lobe piezoelectric ceramic piece adopts the uniform arc-shaped structure of thickness and identical with the radius curve of described sphere shell.
Preferably, the size of each described lobe piezoelectric ceramic piece is consistent.
Preferably, described ring piezoelectric ceramic piece and each described lobe piezoelectric ceramic piece does not contact each other.
Preferably, described sphere shell adopts metal material or elastomeric material to make.
The utility model proposes another embodiment of a kind of focus ultrasonic transducer again, and it comprises control device, sphere shell, ring piezoelectric ceramic piece and several lobe piezoelectric ceramic pieces, wherein:
Described sphere shell, spherical crown is provided with circular hole, for ultrasonic detector is installed;
Described ring piezoelectric ceramic piece adopts cirque structure, the adaptive described sphere shell inboard that is arranged on, and the interior circle of annulus is consistent with described circular hole size;
Described lobe piezoelectric ceramic piece is separately positioned on described sphere shell inboard, is looped around on the excircle of described ring piezoelectric ceramic piece;
Described control device comprises:
Controller, the operating frequency of unified control Direct Digital Synthesizer and the adjustment of phase place;
Direct Digital Synthesizer is controlled by described controller, produces synchronous enabled signal, and quantity is identical with the quantity of described ring piezoelectric ceramic piece and lobe piezoelectric ceramic piece;
Clock-signal generator is controlled described Direct Digital Synthesizer and is worked under identical time reference signal;
Power amplifier module amplifies the power output of described Direct Digital Synthesizer, and quantity is identical with the quantity of described Direct Digital Synthesizer, is connected with the described lobe piezoelectric ceramic piece of described ring piezoelectric ceramic piece and each respectively.
Preferably, described lobe piezoelectric ceramic piece adopts the uniform arc-shaped structure of thickness and identical with the radius curve of described sphere shell.
Preferably, the size of each described lobe piezoelectric ceramic piece is consistent.
Preferably, described ring piezoelectric ceramic piece and each described lobe piezoelectric ceramic piece does not contact each other.
Preferably, described sphere shell adopts metal material or elastomeric material to make.
The utility model focus ultrasonic transducer is provided with a ring piezoelectric ceramic piece and several lobe piezoelectric ceramic pieces of setting up separately in the sphere shell, can distinguish independent control loop piezoelectric ceramic piece and each lobe piezoelectric ceramic piece generation ultrasonic wave; The production cost and the manufacture difficulty of lobe piezoelectric ceramic piece have also reduced.When using the focus ultrasonic transducer, ray disperses more when focusing under the situation that guarantees therapeutic dose, can also optionally adjust therapeutic dose, thereby can not influence ablation effect to focus, when guaranteeing therapeutic dose, reduced stimulation to skin, can also select to close the distinguish piezoelectric ceramic piece of diverse location if any responsive nerve at the treatment passage, avoided on the treatment passage the injury of nerve fiber and improved patient's treatment tolerance, dosage when guaranteeing patient treatment needs, security and comfortableness improve greatly, have embodied the advantage of ultrasound non-invasive nonpain treatment more.
Description of drawings
Fig. 1 is the ring piezoelectric ceramic piece of the utility model focus ultrasonic transducer and the structural representation that the lobe piezoelectric ceramic piece is arranged on the embodiment on the sphere shell;
Fig. 2 be among Fig. 1 along A-A to cutaway view;
Fig. 3 connects the structural representation of an embodiment for the utility model focus ultrasonic converter circuitry.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
The specific embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
With reference to Fig. 1, Fig. 2, an embodiment of a kind of focus ultrasonic transducer of the present utility model is proposed, it comprises sphere shell 30, ring piezoelectric ceramic piece 10 and several lobe piezoelectric ceramic pieces 20, wherein:
Above-mentioned sphere shell 30, spherical crown is provided with circular hole 40, for ultrasonic detector is installed.
Above-mentioned ring piezoelectric ceramic piece 10 adopts cirque structure, and is identical with the radius curve of above-mentioned sphere shell 30, adaptive above-mentioned sphere shell 30 inboards that are arranged on, and the interior circle of annulus is consistent with above-mentioned circular hole 40 sizes.The main effect of ring piezoelectric ceramic piece 10 is the treatment ultrasonic waves that produce minimum basic dosage, and according to different treatment projects, the focus ultrasonic transducer is provided with different big circlet piezoelectric ceramic pieces 10 and guarantees minimum ultrasonic wave dosage.
Above-mentioned lobe piezoelectric ceramic piece 20 is separately positioned on above-mentioned sphere shell 30 inboards, is looped around on the excircle of above-mentioned ring piezoelectric ceramic piece 10; Lobe piezoelectric ceramic piece 20 can manufacture and design the specification of different sizes according to the actual clinical needs.When the gross area was constant, lobe piezoelectric ceramic piece 20 quantity were many more, and the span of control limit of control Vietnamese side of dosage just adjusts when treatment.Above-mentioned lobe piezoelectric ceramic piece 20 adopts the uniform arc-shaped structures of thickness and identical with the radius curve of above-mentioned sphere shell 30, is convenient to and the be complementary crimping or bond together of above-mentioned sphere shell 30.
Above-mentioned ring piezoelectric ceramic piece 10 is connected with the control device of focus ultrasonic transducer respectively with each above-mentioned lobe piezoelectric ceramic piece 20, this control device can be controlled the unlatching of the control circuit that above-mentioned ring piezoelectric ceramic piece 10 is connected with each lobe piezoelectric ceramic piece 20 respectively, can select which piezoelectric ceramic piece work to produce ultrasonic wave arbitrarily.
Ring piezoelectric ceramic piece 10 and each lobe piezoelectric ceramic piece 20 that the utility model focus ultrasonic transducer can be distinguished independent control produce ultrasonic wave.Several lobe piezoelectric ceramic pieces 20 are set production cost and processing and manufacturing difficulty have also been reduced, because of each independently lobe piezoelectric ceramic piece 20 areas dwindle the problem of having avoided easy damage; Selectivity uses 20 work of lobe piezoelectric ceramic piece to be not easy to cause the fatigue damage of equipment.
When using the focus ultrasonic transducer, ray disperses more when focusing under the situation that guarantees therapeutic dose, can optionally adjust therapeutic dose, thereby can not influence ablation effect to focus, when guaranteeing therapeutic dose, reduced stimulation to skin, reduce the dosage of sensitizing range targetedly, can also select to close the distinguish piezoelectric ceramic piece 20 of diverse location if any responsive nerve at the treatment passage, avoided on the treatment passage the injury of nerve fiber and improved patient's treatment tolerance, dosage when guaranteeing patient treatment needs, security and comfortableness improve greatly, have embodied the advantage of ultrasound non-invasive nonpain treatment more.
Further, the size of the above-mentioned lobe piezoelectric ceramic piece 20 of each of this example is consistent, so that adopt the controller control of equal-wattage, each big valvula piezoelectric ceramic piece 20 also can be inequality, but need use the controller control of different capacity respectively.
Not contacting each other of above-mentioned ring piezoelectric ceramic piece 10 and each above-mentioned lobe piezoelectric ceramic piece 20, each piezoelectric ceramic piece does not contact each other, hyperacoustic generation of avoiding influencing each other.
Above-mentioned sphere shell 30 adopts materials such as metal or rubber to make.
With reference to Fig. 3, on the basis of last embodiment, promptly comprised the technical scheme of the foregoing description, another embodiment of a kind of focus ultrasonic transducer is proposed again, it comprises control device, sphere shell 30, ring piezoelectric ceramic piece 10 and several lobe piezoelectric ceramic pieces 20, wherein:
Above-mentioned sphere shell 30, spherical crown is provided with circular hole 40, for ultrasonic detector is installed.
Above-mentioned ring piezoelectric ceramic piece 10 adopts cirque structure, adaptive above-mentioned sphere shell 30 inboards that are arranged on, and the interior circle of annulus is consistent with above-mentioned circular hole 40 sizes.
Above-mentioned lobe piezoelectric ceramic piece 20 is separately positioned on above-mentioned sphere shell 30 inboards, is looped around on the excircle of above-mentioned ring piezoelectric ceramic piece 10.
Above-mentioned lobe piezoelectric ceramic piece 20 adopts the uniform arc-shaped structure of thickness and identical with the radius curve of above-mentioned sphere shell 30.
The size of each above-mentioned lobe piezoelectric ceramic piece 20 is consistent; Not not contacting each other of above-mentioned ring piezoelectric ceramic piece 10 and each above-mentioned lobe piezoelectric ceramic piece 20; Above-mentioned sphere shell 30 adopts metal material or elastomeric material to make.
The technique effect that part reached identical with the foregoing description technical scheme is also identical, does not repeat them here.
Above-mentioned control device comprises:
Direct Digital Synthesizer 300, it is controlled by above-mentioned controller 100, produces synchronous enabled signal, and the quantity of this Direct Digital Synthesizer 300 is identical with the quantity of above-mentioned ring piezoelectric ceramic piece 10 and lobe piezoelectric ceramic piece 20, is convenient to supporting use.
Clock-signal generator 200 can send same clock signal, is used to control above-mentioned Direct Digital Synthesizer 300 and works under identical time reference signal.
A piezoelectric ceramic piece, a Direct Digital Synthesizer 300 and a power amplifier module 400 constitute an independently ultrasonic generator, by controller 100 alternative any one these independently ultrasonic generator work of control.
The utility model control device can distinguish independent control loop piezoelectric ceramic piece 10 and each lobe piezoelectric ceramic piece 20 produces ultrasonic wave.When using the focus ultrasonic transducer, the ultrasonic wave that is produced by ring piezoelectric ceramic piece 10 can guarantee the basic dosage for the treatment of, can also open or close 20 work of one group of lobe piezoelectric ceramic piece arbitrarily and produce ultrasonic wave, optionally adjust therapeutic dose, thereby can not influence ablation effect to focus, when guaranteeing therapeutic dose, reduced stimulation to skin, reduce the dosage of sensitizing range targetedly, can also select to close the distinguish piezoelectric ceramic piece 20 of diverse location if any responsive nerve at the treatment passage, avoided on the treatment passage the injury of nerve and improved patient's treatment tolerance, dosage when guaranteeing patient treatment needs, security and comfortableness improve greatly, have embodied the advantage of ultrasound non-invasive nonpain treatment more.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every conversion that utilizes the equivalent structure that the utility model specification and accompanying drawing content done; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present utility model.
Claims (10)
1. a focus ultrasonic transducer is characterized in that, comprises sphere shell, at least one ring piezoelectric ceramic piece and several lobe piezoelectric ceramic pieces, wherein:
Described sphere shell, spherical crown is provided with circular hole, for ultrasonic detector is installed;
Described ring piezoelectric ceramic piece adopts cirque structure, the adaptive described sphere shell inboard that is arranged on, and the interior circle of annulus is consistent with described circular hole size;
Described lobe piezoelectric ceramic piece is separately positioned on described sphere shell inboard, is looped around on the excircle of described ring piezoelectric ceramic piece;
Described ring piezoelectric ceramic piece is connected with the control device of focus ultrasonic transducer respectively with each described lobe piezoelectric ceramic piece.
2. focus ultrasonic transducer according to claim 1 is characterized in that, described lobe piezoelectric ceramic piece adopts the uniform arc-shaped structure of thickness and identical with the radius curve of described sphere shell.
3. focus ultrasonic transducer according to claim 2 is characterized in that, each described lobe piezoelectric ceramic piece big or small consistent.
4. according to each described focus ultrasonic transducer in the claim 1 to 3, it is characterized in that not the contacting each other of described ring piezoelectric ceramic piece and each described lobe piezoelectric ceramic piece.
5. focus ultrasonic transducer according to claim 4 is characterized in that, described sphere shell adopts metal material or elastomeric material to make.
6. a focus ultrasonic transducer is characterized in that, comprises control device, sphere shell, ring piezoelectric ceramic piece and several lobe piezoelectric ceramic pieces, wherein:
Described sphere shell, spherical crown is provided with circular hole, for ultrasonic detector is installed;
Described ring piezoelectric ceramic piece adopts cirque structure, the adaptive described sphere shell inboard that is arranged on, and the interior circle of annulus is consistent with described circular hole size;
Described lobe piezoelectric ceramic piece is separately positioned on described sphere shell inboard, is looped around on the excircle of described ring piezoelectric ceramic piece;
Described control device comprises:
Controller, the operating frequency of unified control Direct Digital Synthesizer and the adjustment of phase place;
Direct Digital Synthesizer is controlled by described controller, produces synchronous enabled signal, and its quantity is identical with the quantity of described ring piezoelectric ceramic piece and lobe piezoelectric ceramic piece;
Clock-signal generator is controlled described Direct Digital Synthesizer and is worked under identical time reference signal;
Power amplifier module amplifies the power output of described Direct Digital Synthesizer, and its quantity is identical with the quantity of described Direct Digital Synthesizer, is connected with the described lobe piezoelectric ceramic piece of described ring piezoelectric ceramic piece and each respectively.
7. focus ultrasonic transducer according to claim 6 is characterized in that, described lobe piezoelectric ceramic piece adopts the uniform arc-shaped structure of thickness and identical with the radius curve of described sphere shell.
8. focus ultrasonic transducer according to claim 7 is characterized in that, the size of each described lobe piezoelectric ceramic piece is consistent.
9. according to each described focus ultrasonic transducer in the claim 6 to 8, it is characterized in that not the contacting each other of described ring piezoelectric ceramic piece and each described lobe piezoelectric ceramic piece.
10. focus ultrasonic transducer according to claim 9 is characterized in that, described sphere shell adopts metal material or elastomeric material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200115685U CN202052685U (en) | 2011-01-14 | 2011-01-14 | Ultrasonic focusing transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200115685U CN202052685U (en) | 2011-01-14 | 2011-01-14 | Ultrasonic focusing transducer |
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| Publication Number | Publication Date |
|---|---|
| CN202052685U true CN202052685U (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200115685U Expired - Lifetime CN202052685U (en) | 2011-01-14 | 2011-01-14 | Ultrasonic focusing transducer |
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| CN (1) | CN202052685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102579127A (en) * | 2011-01-14 | 2012-07-18 | 深圳市普罗惠仁医学科技有限公司 | Ultrasonic focusing energy transducer |
-
2011
- 2011-01-14 CN CN2011200115685U patent/CN202052685U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102579127A (en) * | 2011-01-14 | 2012-07-18 | 深圳市普罗惠仁医学科技有限公司 | Ultrasonic focusing energy transducer |
| CN102579127B (en) * | 2011-01-14 | 2014-09-03 | 深圳市普罗惠仁医学科技有限公司 | Ultrasonic focusing energy transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111130 Effective date of abandoning: 20140903 |
|
| RGAV | Abandon patent right to avoid regrant |