CN204133931U - A kind of ultrasonic transducer - Google Patents
A kind of ultrasonic transducer Download PDFInfo
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- CN204133931U CN204133931U CN201420501888.2U CN201420501888U CN204133931U CN 204133931 U CN204133931 U CN 204133931U CN 201420501888 U CN201420501888 U CN 201420501888U CN 204133931 U CN204133931 U CN 204133931U
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- knife bar
- ultrasonic transducer
- front shroud
- piezoelectric ceramic
- ceramic piece
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Abstract
The utility model discloses a kind of ultrasonic transducer, comprise and connect side by side successively and there is the pretightning force screw rod of axial hollow structure, back shroud, conducting strip, piezoelectric ceramic piece, front shroud and knife bar, described pretightning force screw rod passes back shroud, conducting strip, piezoelectric ceramic piece and front shroud successively and tightens fixing formation horn, described front shroud is provided with ladder-type structure, described knife bar is provided with the conical structure that diameter is descending, and described conical structure seamlessly transits in the end near front shroud.This ultrasonic transducer adopts the ultrasound works of lower frequency, novel combined type luffing structural design and the use of new size piezoelectric ceramics, substantially increase the transducer power limit, and heating loss obviously reduces, whole efficiency and carrying load ability are improved.Meanwhile, knife bar tip place amplitude strengthens, and the atomizing particle of generation is larger, bring better atomizing effect, improve Clinical practice effect, and the length of knife bar is also more suitable for medical and clinical application.
Description
Technical field
This utility model relates to field of medical device, particularly relates to a kind of ultrasonic transducer.
Background technology
Ultrasonic transducer is a kind of energy conversion device, and its function the electrical power of input is converted to mechanical output (i.e. ultrasound wave) to pass again.Ultrasonic debridement utilizes ultrasonic transducer exactly, form a kind of low frequency, high-energy ultrasound loads injection stream technology, ultrasound wave is utilized to rinse " cavitation " effect produced in jet, and mechanics parameter change when propagating in liquid medium, as the effect such as change of particle displacement, acceleration of vibration and acoustic pressure, realize the function removing pathogenic microorganism, slough and foreign body.Some patents have been had in existing ultrasonic debridement technology, as CN102258423A, CN202096430U, CN202027891U, but perfect not enough, the particularly following shortcoming of design ubiquity of ultrasonic transducer:
(1) transducer operating frequency is commonly 40kHz, and global design power is low, and carrying load ability is weak, and atomizing particle is less, Clinical practice poor effect;
(2) knife bar of transducer is shorter, and medical and clinical application is inconvenient;
(3) transducer mostly is ladder luffing, and cause acoustic power loss serious, overall performance declines, and joint front end amplitude is little.
Therefore, prior art need to improve further and development.
Utility model content
This utility model is for overcoming above prior art defect, and in conjunction with medical and clinical handling characteristics, provide a kind of power large, efficiency is high, and transducer caloric value is minimum, the effective and ultrasonic transducer that carrying load ability is strong of ultrasonic atomizatio.
A kind of ultrasonic transducer, comprise and connect side by side successively and there is the pretightning force screw rod of axial hollow structure, back shroud, conducting strip, piezoelectric ceramic piece, front shroud and knife bar, described pretightning force screw rod passes back shroud, conducting strip, piezoelectric ceramic piece and front shroud successively and tightens fixing formation horn, described front shroud is provided with ladder-type structure, described knife bar is provided with the conical structure that diameter is descending, and described conical structure seamlessly transits in the end near horn.
Further, described conical structure is positioned at the middle part of knife bar.
Further, described knife bar is one-body molded with horn or be threaded.
Further, described transducer is that integral shaft is to hollow structure.
Further, described transducer operating frequency is 20-30kHz.
Further, described transducer length is 20 ~ 30cm.
Further, the length of described knife bar is 10 ~ 20cm.
Further, the conical structure place of described knife bar arranges at least two planar end surfaces.
Further, described two planar end surfaces are parallel to each other.
Further, the end of described knife bar is provided with shower nozzle that is one-body molded or that be threaded, and described shower nozzle is cylindricality, the shape of a hoof, spherical or spade.
Further, described front shroud has mounting flange structure near piezoelectric ceramic piece one end.
Further, described piezoelectric ceramic piece at least includes 1.
Compared with prior art, ultrasonic transducer of the present utility model, operating frequency is lower, by improving the Machine Design of transducer, improve the transducer power limit, obviously reducing heating loss, improves whole efficiency and carrying load ability; And cutter head tip place amplitude is large, the atomizing particle of generation is larger, brings better atomizing effect, improves Clinical practice effect, and then greatly increase practical comfortableness and the service life of transducer, have broad application prospects.
Accompanying drawing explanation
Fig. 1 is the perspective view of the ultrasonic transducer that this utility model provides.
Fig. 2 is the another perspective view of the ultrasonic transducer that this utility model provides.
Fig. 3 is the sectional view of the ultrasonic transducer that this utility model provides.
Fig. 4 a, 4b, 4c and 4d are 4 kinds of joint design schematic diagrams of the ultrasonic transducer that this utility model provides respectively.
In figure: 1 is pretightning force screw rod, 2 is back shroud, and 3 is conducting strip, and 4 is piezoelectric ceramic piece, and 5 is front shroud, and 6 is knife bar, and 7 is mounting flange structure, and 51 is the forge piece of step type structure of front shroud, and 61 is shower nozzle, and 62 is the conical structure of knife bar, and 63 is the planar end surface of knife bar.
Detailed description of the invention
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain this utility model, and be not used in restriction this utility model.
See Fig. 1, Fig. 2 and Fig. 3, the ultrasonic transducer that this utility model provides, comprise and connect successively and there is the pretightning force screw rod 1 of axial hollow structure, back shroud 2, conducting strip 3, piezoelectric ceramic piece 4, front shroud 5 and knife bar 6, and pretightning force screw rod 1 is tightened fixingly form horn through back shroud 2, conducting strip 3, piezoelectric ceramic piece 4 and front shroud 5 successively.Therefore, whole ultrasonic transducer structures is by back shroud 2, conducting strip 3 and piezoelectric ceramic piece 4 spaced series successively, again with front shroud 5 side by side, the axis of intermediate throughholes is alignd, then is passed from back shroud 2, conducting strip 3, piezoelectric ceramic piece 4 and front shroud 5 intermediate throughholes by pretightning force screw rod 1, tighten and be fixed into entirety, ultrasonic transducer of the present utility model be integral shaft to hollow structure, hollow structure is fluid transfer, and integral shaft ensure that the smooth and easy of fluid passage to hollow structure.Described front shroud 5 is provided with ladder-type structure 51, knife bar 6 is provided with the descending conical structure of diameter 62, and conical structure 62 is seamlessly transitting near the end of horn, and also be namely connected with front shroud 5 diameter at position of knife bar 6 is identical.Conical structure can make luffing effect better outstanding, and then makes knife bar tip place amplitude larger, and the atomizing particle of generation is larger, brings better atomizing effect.
Preferably, described conical structure 61 is positioned at the middle part of knife bar 6.Draw through great many of experiments, middle part conical structure being arranged on knife bar can make the amplitude at knife bar tip place large as far as possible, and the atomizing particle of generation is also larger.Atomizing effect is better.
In the present embodiment, transducer operating frequency is at 20 ~ 30kHz, and transducer length is about 20 ~ 30cm, and the length of knife bar is about 10 ~ 20cm.Above-mentioned size draws according to ultrasonic Theoretical Calculation optimization, greatly can improve mechanical couplings.
Knife bar of the present utility model is one-body molded with horn or be threaded, and certainly one-body moldedly can facilitate machine-shaping, saves processing cost.Be threaded the replacing of knife bar, and be particularly applicable to the knife bar with different structure shower nozzle, the present embodiment is preferably threaded.Further, as shown in Fig. 4 a to 4d, shower nozzle 61 is arranged on the end of knife bar 6, and can be the shapes such as cylindricality, the shape of a hoof, spherical or spade.Shower nozzle and knife bar can be one-body molded designs, also can be threaded, and be changed in the lump by knife bar, and only need change when being threaded and meet and discuss during one-body molded design at replacing shower nozzle.Two kinds of modes can both realize the replacing of multiple shower nozzle, and to adapt to different debridement Curing circumstance, and comparatively speaking, thread connecting mode is more practical, and can save cost.
Further, for the knife bar be threaded, for the ease of the replacing of knife bar, this utility model arranges at least two planar end surfaces 63 at the conical structure place of knife bar 6, to accommodate instrument such as the instrument such as pliers, spanner accommodating operation.Preferably, two planar end surfaces 63 are parallel to each other, and accommodating effect can be better, certainly also can arrange two or more planar end surface, such as 5 or 6, can be operated by regular size spanner.
In order to reduce heating loss, the piezoelectric ceramic piece of employing new size of the present utility model, piezoelectric ceramic piece is at least 1, and be preferably four, four piezoelectric ceramic pieces are arranged side by side with one heart.Piezoelectric ceramic piece adopts different radius-thickness ratios, and the piezoelectric ceramics of new size can improve the transducer power limit, obviously reduces heating loss, improves whole efficiency and carrying load ability.And be provided with mounting flange structure 7 at front shroud 5 near one end of piezoelectric ceramic piece 4, realize the stable connection of piezoelectric ceramic piece.
Preferably, ultrasonic transducer of the present utility model adopts metal material to make, and is preferably titanium alloy material.
The ultrasonic transducer that this utility model provides adopts the ultrasound works of lower frequency, novel combined type luffing structural design and the use of new size piezoelectric ceramics, substantially increase the transducer power limit, integral performance parameter is increased dramatically, and heating loss obviously reduces, whole efficiency and carrying load ability are improved.Meanwhile, knife bar tip place amplitude strengthens, and the atomizing particle of generation is larger, bring better atomizing effect, improve Clinical practice effect, and the length of knife bar is also more suitable for medical and clinical application.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (12)
1. a ultrasonic transducer, comprise and connect side by side successively and there is the pretightning force screw rod of axial hollow structure, back shroud, conducting strip, piezoelectric ceramic piece, front shroud and knife bar, described pretightning force screw rod passes back shroud, conducting strip, piezoelectric ceramic piece and front shroud successively and tightens fixing formation horn, described front shroud is provided with ladder-type structure, it is characterized in that, described knife bar is provided with the conical structure that diameter is descending, and described conical structure seamlessly transits in the end near front shroud.
2. ultrasonic transducer according to claim 1, is characterized in that, described conical structure is positioned at the middle part of knife bar.
3. ultrasonic transducer according to claim 1, is characterized in that, described knife bar is one-body molded with horn or be threaded.
4. ultrasonic transducer according to claim 1, is characterized in that, described transducer is that integral shaft is to hollow structure.
5. ultrasonic transducer according to claim 1 and 2, is characterized in that, described transducer operating frequency is 20-30kHz.
6. the ultrasonic transducer according to claim 1 or 2 or 3, is characterized in that, described transducer length is 20 ~ 30cm.
7. ultrasonic transducer according to claim 1, is characterized in that, the length of described knife bar is 10 ~ 20cm.
8. ultrasonic transducer according to claim 4, is characterized in that, the conical structure place of described knife bar arranges at least two planar end surfaces.
9. ultrasonic transducer according to claim 6, is characterized in that, described two planar end surfaces are parallel to each other.
10. ultrasonic transducer according to claim 1 and 2, is characterized in that, the end of described knife bar is provided with shower nozzle that is one-body molded or that be threaded, and described shower nozzle is cylindricality, the shape of a hoof, spherical or spade.
11. ultrasonic transducers according to claim 4, is characterized in that, described front shroud has mounting flange structure near piezoelectric ceramic piece one end.
12. ultrasonic transducers according to claim 4, is characterized in that, described piezoelectric ceramic piece at least includes 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501888.2U CN204133931U (en) | 2014-09-02 | 2014-09-02 | A kind of ultrasonic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501888.2U CN204133931U (en) | 2014-09-02 | 2014-09-02 | A kind of ultrasonic transducer |
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| Publication Number | Publication Date |
|---|---|
| CN204133931U true CN204133931U (en) | 2015-02-04 |
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| CN201420501888.2U Active CN204133931U (en) | 2014-09-02 | 2014-09-02 | A kind of ultrasonic transducer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186283A (en) * | 2017-05-23 | 2017-09-22 | 河南理工大学 | A kind of high-speed continuous ultrasonic radial vibration cutting method and its realize device |
| CN109968443A (en) * | 2019-04-11 | 2019-07-05 | 苏州科技大学 | A kind of large amplitude indulges curved ultrasonic vibration cutter device |
| CN110090060A (en) * | 2018-01-29 | 2019-08-06 | 北京水木天蓬医疗技术有限公司 | A kind of minimally invasive ultrasound cutter head and minimally invasive ultrasound bone dynamical system |
-
2014
- 2014-09-02 CN CN201420501888.2U patent/CN204133931U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186283A (en) * | 2017-05-23 | 2017-09-22 | 河南理工大学 | A kind of high-speed continuous ultrasonic radial vibration cutting method and its realize device |
| CN110090060A (en) * | 2018-01-29 | 2019-08-06 | 北京水木天蓬医疗技术有限公司 | A kind of minimally invasive ultrasound cutter head and minimally invasive ultrasound bone dynamical system |
| CN109968443A (en) * | 2019-04-11 | 2019-07-05 | 苏州科技大学 | A kind of large amplitude indulges curved ultrasonic vibration cutter device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 A, four floor, Yijing company, 1008, song Bai Road, Nanshan District, Shenzhen, Guangdong, China, four Patentee after: Shenzhen lifotronic Polytron Technologies Inc Address before: 518055 four floor, 15 15 song Bai Road, Nanshan District, Shenzhen, Guangdong. Patentee before: Lifotronic Technology Co., Ltd. |