CN104207822A - In-cavity torsional vibration ultrasonic lithotriptor - Google Patents
In-cavity torsional vibration ultrasonic lithotriptor Download PDFInfo
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- CN104207822A CN104207822A CN201410491600.2A CN201410491600A CN104207822A CN 104207822 A CN104207822 A CN 104207822A CN 201410491600 A CN201410491600 A CN 201410491600A CN 104207822 A CN104207822 A CN 104207822A
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- water pipe
- horn
- studs
- intracavity
- torsional oscillation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
Abstract
The invention discloses an in-cavity torsional vibration ultrasonic lithotripter, which comprises a casing, an ultrasonic transducer, an amplitude-change pole, a water pipe connecting pipe, a negative pressure suction device, an inner catheter, an outer catheter and a step annular frequency regulator, wherein the ultrasonic transducer is accommodated in the casing, the amplitude-change pole is connected with the front end of the ultrasonic transducer, the water pipe connecting pipe is connected with the tail end of the ultrasonic transducer, the negative pressure suction device is connected with the water pipe connecting pipe, the front end of the amplitude-change pole is of a spiral groove structure, the inner catheter and the spiral groove are connected through screw threads, the step annular frequency regulator is connected onto the inner catheter through screw threads, and the outer catheter is connected onto the step annular frequency regulator through screw threads. The high-frequency torsional vibration and the low-frequency ultrasonic vibration are combined to be applied into the stone breaking process, the consumption on a lithotripter tool head can be reduced, the stone breaking efficiency is improved, the impact force and the tissue damage in the stone breaking process are effectively reduced, and the injury to the human body tissue due to ultrasonic cavitation and the like can be effectively avoided.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments lithotrite, especially a kind of intracavity torsional oscillation ultrasound lithotriptor that utilized.
Background technology
Along with the quickening of human lives's rhythm and the variation of dietary structure, calculus diseases has become a kind of commonly encountered diseases and frequently-occurring disease.In body ultrasonic rubble due to the injury of human body compared with the little first-selection that becomes rubble.Yet there is larger impulsive force in existing ultrasonic crushing technique, can cause tissue injury to a certain degree, and the problem such as ultrasound lithotriptor exists the loss of tool heads serious, calculifragous efficiency is lower, the rubble time is long.
In prior art, in order to shorten rubble operating time, reduce remnant gallstone rate, and can process Soft tissue cutting, the hemostasis of operation process Shen simultaneously, Liu Jianjun equals to have applied for on 05 22nd, 2012 utility model patent " handle of ultrasonic clear stone rubble ".This patent integrates ultrasonic rubble and laser lithotripsy technology, to increase calculifragous efficiency, shortens operating time.The Shi Zhen state of University Of Science and Technology Of He'nan, Zhu little Juan have applied for patent of invention " a kind of endo-luminal ultrasound calculi breaking device " on the 25th in JIUYUE in 2013.This patent is avoided by establishing a calculus picking up assembly, in the process of the residual and rubble of calculus residue, tissue is around produced to damage.
But above-mentioned technology has some defects." handle of ultrasonic clear stone rubble ", by ultrasonic rubble and laser lithotripsy technology are integrated, increased the complexity of device and the cost of equipment." a kind of endo-luminal ultrasound calculi breaking device " avoided by establishing a calculus picking up assembly, in the process of the residual and rubble of calculus residue, tissue is around produced to damage, but calculus picking up assembly has certain shape and volume, cannot can both process different, the big or small no calculus of volume.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part and a kind of intracavity torsional oscillation ultrasound lithotriptor is provided, this lithotrite reduces impulsive force and the tissue injury in rubble process, reduces the loss of rock breaking tool head, improves calculifragous efficiency.
For achieving the above object, the technical scheme that the present invention takes is: a kind of intracavity torsional oscillation ultrasound lithotriptor, this lithotrite comprises housing, be contained in the ultrasonic transducer in housing, the horn being connected with ultrasonic transducer front end, the water pipe joint being connected with ultrasonic transducer end, the negative pressure suction device being connected with water pipe joint; Also comprise inner catheter, outer catheter, ladder annular frequency regulator, the front end of described horn is spiral grooves structure, described inner catheter and described spiral grooves are threaded connection, described ladder annular frequency regulator is threaded connection on described inner catheter, and described outer catheter is threaded connection on described ladder annular frequency regulator.The spiral grooves structure of horn front end, can convert the longitudinal ultrasonic vibration of horn to torsional oscillation, due to inner catheter with horn for being threaded, so inner catheter export be similarly torsional oscillation; Because outer catheter is connected with ladder annular frequency regulator, therefore, the vibration of outer catheter output longitudinal ultrasonic, by the frequency of ladder annular frequency regulator adjusting outer catheter, can accurately control the frequency of vibration of outer catheter.
As the preferred implementation of ultrasound lithotriptor of the present invention, described ultrasonic transducer structure comprises ultrasonic transducer power supply, studs, back shroud, piezoelectric ceramic piece, electrode slice, horn; Described studs is set with back shroud, piezoelectric ceramic piece, electrode slice, horn successively, and the upper end of studs is threaded with back shroud, and the lower end of studs is threaded with horn; Studs is first connected with horn, back shroud, when screwing with studs, is fixed together piezoelectric ceramic piece, electrode slice successively, and described horn is flange arrangement near one end of electrode slice, described studs is hollow structure one, and described horn is hollow structure two.
As the preferred implementation of ultrasound lithotriptor of the present invention, the helical pitch of described spiral grooves reduces gradually, and groove depth is deepened gradually, and described spiral grooves is distributed in the periphery of horn hollow structure one.
As the preferred implementation of ultrasound lithotriptor of the present invention, described housing comprises procapsid, shell, back casing; Described housing is connected with the flange in horn, and described procapsid is connected with shell by screw thread, and described back casing is connected with shell by screw thread.
Preferred implementation as ultrasound lithotriptor of the present invention, also comprise water pipe head, described water pipe head is fixed on back casing, described water pipe head is connected with described water pipe joint, described water pipe joint is threaded by back shroud with studs, non-direct contact between described studs and water pipe joint, the hollow structure one of described studs communicates with water pipe joint.
As the preferred implementation of ultrasound lithotriptor of the present invention, between described studs and water pipe joint, be provided with rubber sheet gasket.
As the preferred implementation of ultrasound lithotriptor of the present invention, the length of described outer catheter is less than the length of described inner catheter.Because high frequency ultrasound has cavitation effect, tissue is had to certain injury, the length of the larger outer catheter of diameter is arranged to the smaller inner catheter length of diameter group little, can effectively avoid the injury of ultrasonic cavitation to tissue.
As the preferred implementation of ultrasound lithotriptor of the present invention, on described back casing, be provided with conductor interface.
As the preferred implementation of ultrasound lithotriptor of the present invention, the hollow structure two of described inner catheter, horn, the hollow structure one of studs, water pipe joint, water pipe head communicate.
As the preferred implementation of ultrasound lithotriptor of the present invention, the supersonic vibration of described inner catheter is high frequency, and the supersonic vibration of described outer catheter is low frequency.
Intracavity torsional oscillation ultrasound lithotriptor of the present invention, by the spiral grooves structure of horn front end, the longitudinal ultrasonic vibration of horn can be converted to the torsional oscillation of inner catheter, by ladder annular frequency regulator, outer catheter output longitudinal ultrasonic is vibrated, the vibration of high frequency torsional oscillation and low frequency ultrasound is combined and is applied in the rubble process of calculus, can reduce the loss of rock breaking tool head, improve calculifragous efficiency.Because high frequency ultrasound vibration can effectively reduce impulsive force and the tissue injury in rubble process for torsional oscillation.The length of the larger outer catheter of diameter is arranged to the smaller inner catheter length of diameter group little, can effectively avoids the injury of ultrasonic cavitation to tissue.By ladder annular frequency regulator, regulate the frequency of outer catheter, can accurately control the frequency of vibration of outer catheter, for the size of calculus, can select targetedly.
Accompanying drawing explanation
Fig. 1 is the structural representation of intracavity torsional oscillation ultrasound lithotriptor of the present invention.
In figure, 1 is that inner catheter, 2 is that outer catheter, 3 is that the annular frequency regulator of ladder, 4 is that spiral grooves, 5 is that procapsid, 6 is that horn, 7 is that piezoelectric ceramic piece, 8 is that electrode slice, 9 is that studs, 10 is that shell, 11 is that back shroud, 12 is that back casing, 13 is that water pipe joint, 14 is that water pipe head, 15 is that conductor interface, 16 is wire.
The specific embodiment
For the object, technical solutions and advantages of the present invention are better described, below in conjunction with the drawings and specific embodiments, the invention will be further described.
A kind of embodiment of a kind of intracavity torsional oscillation of the present invention ultrasound lithotriptor, as shown in Figure 1, a kind of intracavity torsional oscillation ultrasound lithotriptor, this lithotrite comprises housing, be contained in the ultrasonic transducer in housing, the horn 6 being connected with ultrasonic transducer front end, the water pipe joint 13 being connected with ultrasonic transducer end, the negative pressure suction device being connected with water pipe joint 13; Also comprise inner catheter 1, outer catheter 2, ladder annular frequency regulator 3, the front end of described horn 6 is spiral grooves structure, described inner catheter 1 is threaded connection with described spiral grooves 4, described ladder annular frequency regulator 3 is threaded connection on described inner catheter 1, and described outer catheter 2 is threaded connection on described ladder annular frequency regulator 3.The spiral grooves structure of horn 6 front ends, can convert the longitudinal ultrasonic vibration of horn to torsional oscillation, due to inner catheter 1 with horn 6 for being threaded, so inner catheter 1 export be similarly torsional oscillation; Because outer catheter is connected with ladder annular frequency regulator, therefore, the vibration of outer catheter output longitudinal ultrasonic, by the frequency of ladder annular frequency regulator 3 adjusting outer catheters 2, can accurately control the frequency of vibration of outer catheter 2.By the spiral grooves structure of horn 6 front ends, the longitudinal ultrasonic vibration of horn 6 can be converted to the torsional oscillation of inner catheter 1, by ladder annular frequency regulator 3 outer catheter output longitudinal ultrasonics, vibrate, the vibration of high frequency torsional oscillation and low frequency ultrasound is combined and is applied in the rubble process of calculus, can reduce the loss of rock breaking tool head, improve calculifragous efficiency.
The inner catheter 1 of intracavity torsional oscillation ultrasound lithotriptor and outer catheter 2 enter human body and treat, and under the ultrasonic high frequency ultrasound effect of inner catheter 1, carry out rubble, further carry out masonry industry clearly simultaneously under the low frequency ultrasound of outer catheter 2 and the effect of negative pressure suction device.
Preferably, as shown in Figure 1, described ultrasonic transducer structure comprises ultrasonic transducer power supply, studs 9, back shroud 11, piezoelectric ceramic piece 7, electrode slice 8, horn 6; Described studs 9 is set with back shroud 11, piezoelectric ceramic piece 7, electrode slice 8, horn 6 successively, and the upper end of studs 9 is threaded with back shroud 11, and the lower end of studs 9 is threaded with horn 6; Studs 9 is first connected with horn 6, back shroud 11 is when screwing with studs 9, successively piezoelectric ceramic piece 7, electrode slice 8 are fixed together, described horn 6 is flange arrangement near one end of electrode slice 8, described studs 9 is hollow structure one, and described horn 6 is hollow structure two; Electrode slice 8 is connected with wire 16.Hollow structure one, two, under negative pressure suction device, is conducive to rubble to be discharged.
Preferably, as shown in Figure 1, the helical pitch of described spiral grooves 4 reduces gradually, and groove depth is deepened gradually, and described spiral grooves 4 is distributed in the periphery of horn 6 hollow structures one.
Preferably, as shown in Figure 1, described housing comprises procapsid 5, shell 10, back casing 12; Described housing 10 is connected with the flange in horn 6, and described procapsid 5 is connected with shell 10 by screw thread, and described back casing 12 is connected with shell 10 by screw thread; On described back casing 12, be provided with conductor interface 15.
Preferably, as shown in Figure 1, also comprise water pipe head 14, described water pipe head 14 is fixed on back casing 12, described water pipe head 14 is connected with described water pipe joint 13, described water pipe joint 13 is threaded by back shroud 11 with studs 9, and non-direct contact between described studs 9 and water pipe joint 13 is provided with rubber sheet gasket between studs 9 and water pipe joint 13.The hollow structure one of described studs 9 communicates with water pipe joint 13, under negative pressure suction device, rubble is discharged.
Preferably, as shown in Figure 1, the length of described outer catheter 2 is less than the length of described inner catheter 1.Because high frequency ultrasound has cavitation effect, tissue is had to certain injury, the length of the larger outer catheter of diameter is arranged to the smaller inner catheter length of diameter group little, can effectively avoid the injury of ultrasonic cavitation to tissue.
Preferably, as shown in Figure 1, the hollow structure two of described inner catheter 1, horn 6, the hollow structure one of studs 9, water pipe joint 13, water pipe head 14 communicate.
Preferably, as shown in Figure 1, the supersonic vibration of described inner catheter 1 is high frequency, and the supersonic vibration of described outer catheter 2 is low frequency.The rubble bar being formed by inside and outside conduit, inner catheter 1 is ultrasound wave rubble bar, vibrates for supersonic frequency is 21kHz, outer catheter frequency is low frequency, for example 1kHz.
Intracavity torsional oscillation ultrasound lithotriptor of the present invention, by the spiral grooves structure of horn front end, the longitudinal ultrasonic vibration of horn can be converted to the torsional oscillation of inner catheter, by ladder annular frequency regulator, outer catheter output longitudinal ultrasonic is vibrated, this intracavity torsional oscillation ultrasound lithotriptor integrates dither, low frequency impacts, the shock wave producing is pulverized, is adsorbed the calculus that varies in size, and has the advantages such as efficient, safe, quick.Because high frequency ultrasound vibration can effectively reduce impulsive force and the tissue injury in rubble process for torsional oscillation.The length of the larger outer catheter of diameter is arranged to the smaller inner catheter length of diameter group little, can effectively avoids the injury of ultrasonic cavitation to tissue.By ladder annular frequency regulator, regulate the frequency of outer catheter, can accurately control the frequency of vibration of outer catheter, for the size of calculus, can select targetedly.
Last institute should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although the present invention is explained in detail with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. an intracavity torsional oscillation ultrasound lithotriptor, this lithotrite comprises housing, is contained in the ultrasonic transducer in housing, the horn being connected with ultrasonic transducer front end, the water pipe joint being connected with ultrasonic transducer end, the negative pressure suction device being connected with water pipe joint; It is characterized in that, also comprise inner catheter, outer catheter, ladder annular frequency regulator, the front end of described horn is spiral grooves structure, described inner catheter and described spiral grooves are threaded connection, described ladder annular frequency regulator is threaded connection on described inner catheter, and described outer catheter is threaded connection on described ladder annular frequency regulator.
2. intracavity torsional oscillation ultrasound lithotriptor as claimed in claim 1, is characterized in that, described ultrasonic transducer structure comprises ultrasonic transducer power supply, studs, back shroud, piezoelectric ceramic piece, electrode slice, horn; Described studs is set with back shroud, piezoelectric ceramic piece, electrode slice, horn successively, and the upper end of studs is threaded with back shroud, and the lower end of studs is threaded with horn; Studs is first connected with horn, back shroud, when screwing with studs, is fixed together piezoelectric ceramic piece, electrode slice successively, and described horn is flange arrangement near one end of electrode slice, described studs is hollow structure one, and described horn is hollow structure two.
3. intracavity torsional oscillation ultrasound lithotriptor as claimed in claim 2, is characterized in that, the helical pitch of described spiral grooves reduces gradually, and groove depth is deepened gradually, and described spiral grooves is distributed in the periphery of horn hollow structure one.
4. intracavity torsional oscillation ultrasound lithotriptor as claimed in claim 2, is characterized in that, described housing comprises procapsid, shell, back casing; Described housing is connected with the flange in horn, and described procapsid is connected with shell by screw thread, and described back casing is connected with shell by screw thread.
5. intracavity torsional oscillation ultrasound lithotriptor as claimed in claim 2, it is characterized in that, also comprise water pipe head, described water pipe head is fixed on back casing, described water pipe head is connected with described water pipe joint, described water pipe joint is threaded by back shroud with studs, non-direct contact between described studs and water pipe joint, and the hollow structure one of described studs communicates with water pipe joint.
6. intracavity torsional oscillation ultrasound lithotriptor as claimed in claim 5, is characterized in that, between described studs and water pipe joint, is provided with rubber sheet gasket.
7. intracavity torsional oscillation ultrasound lithotriptor as claimed in claim 1, is characterized in that, the length of described outer catheter is less than the length of described inner catheter.
8. intracavity torsional oscillation ultrasound lithotriptor as claimed in claim 4, is characterized in that, on described back casing, is provided with conductor interface.
9. intracavity torsional oscillation ultrasound lithotriptor as claimed in claim 5, is characterized in that, the hollow structure two of described inner catheter, horn, the hollow structure one of studs, water pipe joint, water pipe head communicate.
10. the intracavity torsional oscillation ultrasound lithotriptor as described in as arbitrary in claim 1-9, is characterized in that, the supersonic vibration of described inner catheter is high frequency, and the supersonic vibration of described outer catheter is low frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410491600.2A CN104207822A (en) | 2014-09-12 | 2014-09-12 | In-cavity torsional vibration ultrasonic lithotriptor |
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| CN201410491600.2A CN104207822A (en) | 2014-09-12 | 2014-09-12 | In-cavity torsional vibration ultrasonic lithotriptor |
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| CN104207822A true CN104207822A (en) | 2014-12-17 |
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| CN201410491600.2A Pending CN104207822A (en) | 2014-09-12 | 2014-09-12 | In-cavity torsional vibration ultrasonic lithotriptor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945203A (en) * | 2016-07-11 | 2016-09-21 | 杨林 | Device for forging processing of gear |
| CN106725725A (en) * | 2017-02-24 | 2017-05-31 | 厚凯（天津）医疗科技有限公司 | A kind of DLC ultrasound lithotriptor |
| CN112807056A (en) * | 2021-01-29 | 2021-05-18 | 李九智 | Ultrasonic percutaneous nephroscope integrated lithotriptor and application thereof |
| CN113598876A (en) * | 2021-07-26 | 2021-11-05 | 费兴伟 | Ureter supersound rubble equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2527382Y (en) * | 2001-02-27 | 2002-12-25 | 杨青 | Ultrasonic wave torsion vibrating drilling device |
| JP2003126109A (en) * | 2001-10-19 | 2003-05-07 | Olympus Optical Co Ltd | Ultrasonic treatment equipment |
| US20050021065A1 (en) * | 2003-07-24 | 2005-01-27 | Olympus Corporation | Ultrasonic treatment apparatus |
| CN101259465A (en) * | 2008-04-15 | 2008-09-10 | 北京航空航天大学 | Bending mode conversion type ultrasound wave torsional vibration energy converter |
| CN101461732A (en) * | 2008-10-07 | 2009-06-24 | 王华林 | Ultrasound lithotriptor |
| CN103920635A (en) * | 2014-04-18 | 2014-07-16 | 北京航空航天大学 | Longitudinal torsion composite supersonic vibration machining device |
| CN204169899U (en) * | 2014-09-12 | 2015-02-25 | 广东工业大学 | Intracavity torsional oscillation ultrasound lithotriptor |
-
2014
- 2014-09-12 CN CN201410491600.2A patent/CN104207822A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2527382Y (en) * | 2001-02-27 | 2002-12-25 | 杨青 | Ultrasonic wave torsion vibrating drilling device |
| JP2003126109A (en) * | 2001-10-19 | 2003-05-07 | Olympus Optical Co Ltd | Ultrasonic treatment equipment |
| US20050021065A1 (en) * | 2003-07-24 | 2005-01-27 | Olympus Corporation | Ultrasonic treatment apparatus |
| CN101259465A (en) * | 2008-04-15 | 2008-09-10 | 北京航空航天大学 | Bending mode conversion type ultrasound wave torsional vibration energy converter |
| CN101461732A (en) * | 2008-10-07 | 2009-06-24 | 王华林 | Ultrasound lithotriptor |
| CN103920635A (en) * | 2014-04-18 | 2014-07-16 | 北京航空航天大学 | Longitudinal torsion composite supersonic vibration machining device |
| CN204169899U (en) * | 2014-09-12 | 2015-02-25 | 广东工业大学 | Intracavity torsional oscillation ultrasound lithotriptor |
Non-Patent Citations (1)
| Title |
|---|
| 赵文凤等: "新型超声振动结构的研究进展", 《机床与液压》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945203A (en) * | 2016-07-11 | 2016-09-21 | 杨林 | Device for forging processing of gear |
| CN106725725A (en) * | 2017-02-24 | 2017-05-31 | 厚凯（天津）医疗科技有限公司 | A kind of DLC ultrasound lithotriptor |
| CN112807056A (en) * | 2021-01-29 | 2021-05-18 | 李九智 | Ultrasonic percutaneous nephroscope integrated lithotriptor and application thereof |
| CN113598876A (en) * | 2021-07-26 | 2021-11-05 | 费兴伟 | Ureter supersound rubble equipment |
| CN113598876B (en) * | 2021-07-26 | 2023-08-22 | 青岛健新医疗科技有限公司 | Ureter ultrasonic lithotripter |
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Application publication date: 20141217 |