CN2451084Y - Improvement of ultrasound cataract emulsion instrument transducer - Google Patents
Improvement of ultrasound cataract emulsion instrument transducer Download PDFInfo
- Publication number
- CN2451084Y CN2451084Y CN 00236714 CN00236714U CN2451084Y CN 2451084 Y CN2451084 Y CN 2451084Y CN 00236714 CN00236714 CN 00236714 CN 00236714 U CN00236714 U CN 00236714U CN 2451084 Y CN2451084 Y CN 2451084Y
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- transducer
- improvement
- handle
- horn
- cover plates
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Abstract
The utility model relates to the improvement of a transducer of an ultrasonic cataract emulsification instrument, which comprises a main machine and an emulsification handle, wherein the main machine is connected with the emulsification handle by a cable and a liquid injection pipe; a variable-amplitude rod is connected to the emulsification handle; the variable-amplitude rod is combined with a needle head assembly; a transducer in the emulsification handle comprises two cover plates and piezoelectric ceramics between the cover plates; an outer casing of the variable-amplitude rod is connected with the cover plate at one end of the transducer by a screw; the transducer is arranged in a prestressed sleeve cylinder and is fixed with the prestressed sleeve cylinder. The displacement between two cover plates and the piezoelectric ceramics on the radial direction can be avoided; because a curve type transition contraction needle head is adopted, air bubbles can not be generated in eyes during an operation and the operation quality can be increased.
Description
This utility model relates to a kind of operating theater instruments, particularly relates to a kind of improvement of ultrasonic cataract emulsification instrument transducer.
Along with laser, developing rapidly of ultrasound wave and electronic technology, its application is also constantly expanded, wherein the application aspect medical apparatus and instruments has just obtained success widely, such as in surgical operation, just the someone utilizes the ultrasound wave mechanism of action to develop ultrasonic cataract emulsification instrument, the theory diagram of this emulsification instrument as shown in Figure 1, wherein, the signal of telecommunication that supersonic source produces is after power amplifier amplifies, be transported to the transducer in the operating grip, this transducer can become this electrical signal conversion the ultra sonic machinery vibration, this vibration is amplified through a horn that is connected with transducer, can with the bonded cutter of this transducer on give off ultrasound wave, this cutter comprises fluid injection lining and emulsifying syringe needle.The ultrasound wave that this emulsifying syringe needle sends has mechanical effect and cavitation effect, can absorb by the fluid injection lining after with cataract emulsifying from the 3mm otch, more soft folded iol is implanted through otch, removes cataractous purpose thereby reach.Because operation is to carry out in the pro-capsule, is self-enclosed shape, no hemorrhage, incision length dwindles greatly than routine techniques, and the tractive to iris in the operation is little, and postoperative astigmatism and inflammatory reaction obviously reduce, and vision restoration gets soon.In view of above advantage, this emulsification instrument is extensively promoted clinically, for the patient has alleviated slight illness.But, in the handle arrangement of this emulsification instrument, transducer comprises the piezoelectric ceramics between two cover plates and this cover plate, and this two cover plate and piezoelectric ceramics are by a screw rod cross-under together, being screwed with a bolt respectively at the two ends of screw rod makes two cover plates compress piezoelectric ceramics, thereby under the situation of piezoelectric ceramics energising, the exportable ultrasonic mechanical vibration of this transducer, in this process, because two transducers and piezoelectric ceramics are by the screw rod cross-under together, in the transducer output ultrasonic wave, may produce displacement in the radial direction between two cover plates and the piezoelectric ceramics, the surperficial unbalance stress that cover plate is contacted with piezoelectric ceramics, thus can have influence on surgical effect.In addition, because the linearly formula transition of outer wall of emulsifying syringe needle afterbody, ophthalmic has bubble to produce during operation, also can further influence the quality of operation.
Purpose of the present invention is exactly in order to overcome the above-mentioned defective that prior art exists, a kind of improvement of ultrasonic cataract emulsification instrument transducer is provided, by transducer being arranged in the sleeve, transducer is more firmly contacted with piezoelectric ceramics, and then prevent from producing displacement in the radial direction between two cover plates and the piezoelectric ceramics, simultaneously also when operation ophthalmic do not have bubble and produce, thereby further improve surgical effect and operation quality.
The purpose of this utility model is achieved in that the improvement that a kind of ultrasonic cataract emulsification instrument transducer is provided, comprise main frame and emulsifying handle, described main frame passes through cable, liquid injection pipe is connected with described handle, connect a horn on the described handle, described horn is in conjunction with a needle assembly, also be provided with a transducer in the described handle, this transducer can become the electrical signal conversion that main frame produces the ultra sonic machinery vibration, this vibration is amplified through a horn that is connected with transducer, described transducer also comprises the piezoelectric ceramics between two cover plates and this cover plate, the shell of horn is connected with the cover plate of transducer one end by a screw, described transducer is arranged in the prestressing force sleeve, and, all be provided with screw thread on described two cover plates, be used for respectively with sleeve lining on screw thread be spirally connected.
This utility model can also following manner further be realized: i.e. the curved formula transition of the outer wall of syringe needle afterbody.
Cataract emulsification instrument provided by the utility model is except that the advantage with existing emulsification instrument, because its transducer is arranged in the sleeve, can prevent from producing displacement in the radial direction between two cover plates and the piezoelectric ceramics, and, owing to adopted curvilinear style transition syringe needle, during operation, by liquid injection pipe when liquid is injected at the intraocular surgery position, bubble can be do not produced within the eye, thereby the operation quality can be improved.
Fig. 1 is the theory diagram of existing ultrasonic cataract emulsification instrument;
Fig. 2 is the part cross-sectional schematic of emulsification instrument handle described in the utility model;
Fig. 3 is the assembling sketch map of the needle assembly shown in Fig. 2.
Below in conjunction with accompanying drawing, further specify this utility model by an embodiment.
The improvement of ultrasonic cataract emulsification instrument transducer described in the utility model, comprise main frame and handle, the signal of telecommunication that supersonic source in this main frame produces is after power amplifier amplifies, be transported to the transducer in the operating grip, this transducer can become this electrical signal conversion the ultra sonic machinery vibration, this vibration is amplified through a horn that is connected with transducer, can with the bonded cutter of this transducer on give off ultrasound wave.
Participate in Fig. 2, in handle of the present utility model, handle jacket tube 9 is provided with fluid injection inlet 10, be used for by liquid injection pipe 12 to needle assembly 1 fluid injection that is installed on the horn 2, one cable 8 inserts from handle end, signal conductor 7 in the cable 8 is connected on the piezoelectric ceramics 5, be respectively equipped with a cover plate 6 at the two ends of piezoelectric ceramics, this piezoelectric ceramics 5 and two cover plates 6 all are located in the prestressing force sleeve 4, wherein, all be shaped on screw thread on two cover plates, also be shaped on screw thread on the telescopic inwall, and these two kinds of screw threads cooperatively interact turnbarrel 4 or the cover plate 6 fine-tuning prestressed sizes that are added on the piezoelectric ceramics.Sidepiece at sleeve 4 is provided with a ventilating heat dissipating hole, and this hole also can be used as the fairlead of lead.The shell 11 of horn 2 is connected with the cover plate of transducer one end by a screw 3, amplifies with the ultrasound wave to transducer output.One end of horn 2 is connected with the emulsifying syringe needle 13 of needle assembly 1, is enclosed within this fluid injection lining outside 14 (referring to Fig. 3) and a fluid injection lining 14 entangles these emulsifying syringe needle 13, one test suites 15.When the curved formula transition of the outer wall of emulsifying syringe needle 13 afterbodys, such structure can make operation, the liquid that can not that injects syringe needle produced bubble within the eye.
Claims (4)
1, a kind of improvement of ultrasonic cataract emulsification instrument transducer, comprise main frame and emulsifying handle, described main frame passes through cable, liquid injection pipe is connected with described handle, connect a horn on the described handle, described horn is in conjunction with a needle assembly, also be provided with a transducer in the described handle, this transducer can become the electrical signal conversion that main frame produces the ultra sonic machinery vibration, this vibration is amplified through a horn that is connected with transducer, described transducer also comprises the piezoelectric ceramics between two cover plates and this cover plate, the shell of horn is connected with the cover plate of transducer one end by a screw, it is characterized in that described transducer is arranged in the prestressing force sleeve, and fix with described sleeve.
2, the improvement of cataract emulsification instrument transducer as claimed in claim 1 is characterized in that all being provided with screw thread on described two cover plates, be used for respectively with described sleeve lining on screw thread be spirally connected.
3, the improvement of cataract emulsification instrument transducer as claimed in claim 1 or 2, it is characterized in that described needle assembly comprises a test suite, a fluid injection lining and an emulsifying syringe needle, wherein, described test suite is enclosed within described fluid injection lining outside, and described fluid injection lining entangles described emulsifying syringe needle.
4, the improvement of cataract emulsification instrument transducer as claimed in claim 3 is characterized in that the curved formula transition of outer wall of described emulsifying syringe needle afterbody.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00236714 CN2451084Y (en) | 2000-05-26 | 2000-05-26 | Improvement of ultrasound cataract emulsion instrument transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00236714 CN2451084Y (en) | 2000-05-26 | 2000-05-26 | Improvement of ultrasound cataract emulsion instrument transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2451084Y true CN2451084Y (en) | 2001-10-03 |
Family
ID=33598202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00236714 Expired - Fee Related CN2451084Y (en) | 2000-05-26 | 2000-05-26 | Improvement of ultrasound cataract emulsion instrument transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2451084Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299657C (en) * | 2005-06-02 | 2007-02-14 | 上海交通大学 | Cataract ultrasonic emulsification instrument |
| CN102056040A (en) * | 2009-11-04 | 2011-05-11 | 财团法人精密机械研究发展中心 | Manufacturing method of bezier curve ultrasonic amplifier and product thereof |
| CN102740905A (en) * | 2009-12-08 | 2012-10-17 | 爱尔康研究有限公司 | Phacoemulsification hand piece with integrated aspiration pump |
| CN104161619A (en) * | 2014-09-10 | 2014-11-26 | 以诺康医疗科技（苏州）有限公司 | Ultrasonic handle generating twisting vibration |
| CN112773598A (en) * | 2019-11-11 | 2021-05-11 | 深圳市钛金时代科技开发有限公司 | Coaxial waterproof high temperature resistant ultrasonic emulsification handle |
-
2000
- 2000-05-26 CN CN 00236714 patent/CN2451084Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299657C (en) * | 2005-06-02 | 2007-02-14 | 上海交通大学 | Cataract ultrasonic emulsification instrument |
| CN102056040A (en) * | 2009-11-04 | 2011-05-11 | 财团法人精密机械研究发展中心 | Manufacturing method of bezier curve ultrasonic amplifier and product thereof |
| CN102740905A (en) * | 2009-12-08 | 2012-10-17 | 爱尔康研究有限公司 | Phacoemulsification hand piece with integrated aspiration pump |
| CN102740905B (en) * | 2009-12-08 | 2014-07-23 | 爱尔康研究有限公司 | Phacoemulsification hand piece with integrated aspiration pump |
| CN104161619A (en) * | 2014-09-10 | 2014-11-26 | 以诺康医疗科技（苏州）有限公司 | Ultrasonic handle generating twisting vibration |
| CN112773598A (en) * | 2019-11-11 | 2021-05-11 | 深圳市钛金时代科技开发有限公司 | Coaxial waterproof high temperature resistant ultrasonic emulsification handle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Yuli Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |