EP0421290A1 - Transducteur ultrasonore d'ondes de choc - Google Patents
Transducteur ultrasonore d'ondes de choc Download PDFInfo
- Publication number
- EP0421290A1 EP0421290A1 EP90118644A EP90118644A EP0421290A1 EP 0421290 A1 EP0421290 A1 EP 0421290A1 EP 90118644 A EP90118644 A EP 90118644A EP 90118644 A EP90118644 A EP 90118644A EP 0421290 A1 EP0421290 A1 EP 0421290A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transducer
- ultrasonic shock
- shock wave
- wave transducer
- ultrasonic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/32—Sound-focusing or directing, e.g. scanning characterised by the shape of the source
Definitions
- the invention relates to an ultrasonic shock wave transducer for use in lithotripsy, hyperthermia and the like, which sends ultrasonic shock waves generated by it to the calculus or tissue to be destroyed.
- Dome-shaped or planar transducers in which electronic (DE-OS 3119295) or acoustic focusing of the ultrasonic waves takes place, are used in medicine to disintegrate concrements located in body cavities, to destroy tissue and the like.
- Ultrasonic shock waves of the type mentioned generally serve their purpose satisfactorily with regard to the first application of the ultrasonic shock waves. So is a sufficiently large concretions are very likely to be destroyed during the first treatment. Often a number of smaller fragments remain, which in turn have to be destroyed. The effort required for this is considerable because each fragment is the subject of a post-treatment.
- the object of the present invention to further develop an ultrasonic shock wave transducer so that the probability of hit of the ultrasonic shock waves, in particular for smaller fragments or stones, is increased; faster destruction of piles of smaller objects is to be made possible.
- the likelihood of being hit is thus increased by a targeted enlargement of the focus area.
- the ultrasonic shock wave transducer according to the invention allows the bundling of the energy to at least two points on a preselected arbitrarily curved space Line.
- the disadvantages of the theoretical approach are avoided.
- the transducer focuses the energy of the ultrasound shock waves on an infinite number of points, so that there is a self-contained space-curved line. If the space-curved line is selected as a circular ring, an annular focus region accordingly results in this exemplary embodiment.
- each planar and essentially dome-shaped transducer can be designed in the manner described.
- the transducer itself is designed as the transducer directing the ultrasound shock waves generated by it, it has a rotationally symmetrical shape with a bowl-shaped cross-section with a diffusely reflecting base.
- the focus area will be a circular ring.
- the transducer as the ultrasonic shock waves generated by it, can itself be constructed on the concretions or tissue-directing transducers in such a way that it consists of several individual segments, each with a focus, which lie on the imaginary arbitrarily curved line. If the individual segments are segments of a spherical cap, the individual foci of the segments will lie on an imaginary circular ring around the main transducer axis.
- This embodiment can be further developed in that the individual segments can be moved in translation in one plane with respect to the main axis of the converter. If the example is used again, that the individual segments are spherical segments, then the diameter becomes of the circular ring on which the individual foci lie, enlarge if all individual segments are moved apart to the same extent. It will decrease accordingly if the individual segments are moved closer together to the same extent without overlapping. But even an overlap of the individual sound cones is conceivable.
- a further adjustment possibility of the arbitrarily curved space, but given by the specific design of the transducer, is provided in a further development of the transducer consisting of individual segments if the individual segments are arranged so that they can be pivoted at an angle with respect to the main axis of the transducer.
- the diameter of the imaginary circular ring on which the individual foci lie will increase if all segments are pivoted away from the main converter axis by the same angle.
- the transducer is provided with an acoustic lens on its radiation surface, which has several acoustic foci.
- this lens is formed in one piece and is rotationally symmetrical and its thickness increases steadily from the edge of the transducer to the center thereof, the transducer will have an annular focus area.
- All of the exemplary embodiments shown can be, for example, mosaic-like in order to generate the ultrasonic shock waves piezoceramic elements. However, this will not be discussed further below.
- the known transducer 16 has a focus 15, idealized as a point, on which the ultrasonic shock waves are bundled.
- the focus 15 is aligned with the object to be destroyed during the application of the ultrasonic shock waves, so that both are coincident.
- the converter 1 is rotationally symmetrical in shape and has a planar base 1 in the center.
- the transducer 1 In the area of the planar base 4, the transducer 1 has no transducer elements, for example piezoelectric elements such as on the radiation surfaces 2.
- the transducer 1 emits a rotationally symmetrical sound field. Due to its shape, it focuses the energy of the ultrasonic shock waves on an infinite number of points that lie on a closed, space-curved line 3 about its main axis 13.
- the curved line 3 is a closed circular ring. Accordingly, the converter 1 in the present case has a closed, ring-shaped focus area.
- Figure 2 again shows the transducers 16 and 1 in a perspective view for illustration.
- the curved lines in the interior of the transducer represent only that curved course of the radiation surfaces 2, but not a segmentation of the transducers.
- the converter 1 is divided into four segments 5, 6, 7, 8 here.
- the segments 5, 6, 7, 8 are dome-shaped, so that each of them has an individual focus 9, 10, 11, 12.
- the segments 5, 6, 7, 8 are shown arranged relative to one another in the present case so that the individual foci 9, 10, 11, 12 lie on an imaginary space-curved line 3 in the form of a circular ring.
- the individual segments 5, 6, 7, 8 can be moved in translation in one plane with respect to the main axis 13 of the converter 1, as is indicated by the double arrows in the top view (c). If, starting from the position shown, the individual segments are moved away from the main axis 13 by the same distance, the diameter of the imaginary circular ring 3 increases. It becomes correspondingly smaller when the individual segments move towards the main axis 13.
- other space-curved lines 3 can also be represented as a circular ring, namely if the distances by which the individual segments 5, 6, 7, 8 are moved with respect to the main axis 13 are not the same.
- FIG. 4 shows a further embodiment of the converter 1, which like the one according to FIG. 3 has a non-rotationally symmetrical shape.
- the transducer has a circular outer contour in its maximally extended position (b), while this 3 is the case when all the individual segments 5, 6, 7, 8 have moved as far as possible to the main axis 13 of the converter 1. Then the converter 1 takes the position (a) of the converter 16 in principle.
- dome segments 5, 6 are arranged at their base at a certain distance from one another.
- the individual foci 9, 10 are coincident in this position.
- the individual segments 5, 6 can now be moved in the direction of the main axis 13.
- the end position (b) is reached when both segments 5, 6 touch on the main axis 13.
- the sound cones emanating from the individual segments 5, 6 overlap, so that the individual focuses 9, 10 move away from one another. Any intermediate position is of course possible between position (a) and position (b).
- FIG. 6 schematically shows a further embodiment of the converter.
- the segments 5, 6 can be pivoted at an angle with respect to the main axis 13.
- the segments 5, 6 can, for example, be pivoted into position (b), as a result of which the individual foci 9, 10 move away from one another.
- the individual angles around which the individual segments are pivoted do not always have to be of the same size.
- different curved lines can be created from a circular ring, on which the individual foci come to rest.
- FIG. 7 (b) shows a further variant of the converter, which here consists of a single rotationally symmetrical body. It emerges from the dome-shaped, known transducer (a) by tilting the cross-section halves and has a ring focus.
- FIG. 8 shows a further interesting embodiment of the transducer 1.
- An acoustic lens 14, which has a plurality of foci 17, 18, is applied to the radiation surface 2 of the transducer 1.
- an enlargement of the focus area is thus not achieved by moving or pivoting individual elements with respect to the main axis 13, but rather by "acoustically tilting".
- the lens 14 is formed in one piece and is rotationally symmetrical. Its thickness increases steadily from the edge of the transducer 1 to its center.
- the converter shown has a focus area, which lies on a closed circular ring as a space-curved line.
- a focus area which lies on a closed circular ring as a space-curved line.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Surgical Instruments (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3932967A DE3932967A1 (de) | 1989-10-03 | 1989-10-03 | Ultraschall-stosswellenwandler |
DE3932967 | 1989-10-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0421290A1 true EP0421290A1 (fr) | 1991-04-10 |
Family
ID=6390740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90118644A Withdrawn EP0421290A1 (fr) | 1989-10-03 | 1990-09-28 | Transducteur ultrasonore d'ondes de choc |
Country Status (3)
Country | Link |
---|---|
US (1) | US5193527A (fr) |
EP (1) | EP0421290A1 (fr) |
DE (1) | DE3932967A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992008413A1 (fr) * | 1990-11-20 | 1992-05-29 | Storz Medical Ag | Dispositif pour la generation d'ondes sonores acoustiques focalisees |
WO1993021626A1 (fr) * | 1991-01-28 | 1993-10-28 | Siemens Aktiengesellschaft | Generateur d'impulsions acoustiques de pression, notamment en therapie de maladies des os |
DE19927481C1 (de) * | 1999-06-16 | 2000-06-29 | Siemens Ag | Akustische Fokussiereinrichtung mit veränderbarem Fokusabstand |
WO2008003910A1 (fr) * | 2006-07-05 | 2008-01-10 | Edap S.A. | Appareil de therapie a fonctionnement sequentiel |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4122223C1 (en) * | 1991-07-04 | 1992-10-01 | Siemens Ag, 8000 Muenchen, De | Acoustic, focussed, pressure pulse generator - has presser pulse source, pulse reflector, and acoustic lens between reflector and focus |
FR2695788B1 (fr) * | 1992-09-14 | 1994-12-23 | Framatome Sa | Procédé de réalisation de la surface de sortie d'un traducteur à faisceau ultrasonore focalisé et traducteur comportant une surface de sortie ainsi réalisée. |
DE4238645C1 (de) * | 1992-11-16 | 1994-05-05 | Siemens Ag | Therapeutischer Ultraschall-Applikator für den Urogenitalbereich |
JP3243047B2 (ja) * | 1993-03-12 | 2002-01-07 | 呉羽化学工業株式会社 | 受波型圧電素子 |
JP3578217B2 (ja) * | 1993-04-15 | 2004-10-20 | シーメンス アクチエンゲゼルシヤフト | 心臓疾患および心付近の血管を治療するための治療装置 |
US5743855A (en) * | 1995-03-03 | 1998-04-28 | Acuson Corporation | Broadband phased array transducer design with frequency controlled two dimension capability and methods for manufacture thereof |
US5415175A (en) * | 1993-09-07 | 1995-05-16 | Acuson Corporation | Broadband phased array transducer design with frequency controlled two dimension capability and methods for manufacture thereof |
US5438998A (en) * | 1993-09-07 | 1995-08-08 | Acuson Corporation | Broadband phased array transducer design with frequency controlled two dimension capability and methods for manufacture thereof |
US5371483A (en) * | 1993-12-20 | 1994-12-06 | Bhardwaj; Mahesh C. | High intensity guided ultrasound source |
FR2715313B1 (fr) * | 1994-01-27 | 1996-05-31 | Edap Int | Procédé de commande d'un appareil de traitement par hyperthermie à l'aide d'ultrasons. |
DE19733233C1 (de) * | 1997-08-01 | 1998-09-17 | Wolf Gmbh Richard | Elektroakustischer Wandler |
US6039689A (en) * | 1998-03-11 | 2000-03-21 | Riverside Research Institute | Stripe electrode transducer for use with therapeutic ultrasonic radiation treatment |
DE19914809B4 (de) * | 1999-03-31 | 2006-10-05 | Dornier Medtech Holding International Gmbh | Verwendung eines abbildenden Systems in einer Vorrichtung zur Erzeugung von fokussierten Stoßwellen |
DE19928491A1 (de) | 1999-06-22 | 2001-01-04 | Wolf Gmbh Richard | Vorrichtung, insbesondere Therapievorrichtung, zum Beschallen von Objekten mit fokussiertem Schall |
US6571444B2 (en) * | 2001-03-20 | 2003-06-03 | Vermon | Method of manufacturing an ultrasonic transducer |
DE10138434C1 (de) * | 2001-08-06 | 2003-02-13 | Wolf Gmbh Richard | Fokussierender elektroakustischer Wandler und Verfahren zum Test seiner Ausgangsleistung |
US20030171701A1 (en) * | 2002-03-06 | 2003-09-11 | Eilaz Babaev | Ultrasonic method and device for lypolytic therapy |
US7410464B2 (en) * | 2002-06-04 | 2008-08-12 | Moshe Ein-Gal | Wave generating device |
US7167415B2 (en) * | 2004-09-15 | 2007-01-23 | Packaging Technologies & Inspection Llc | Transducers for focusing sonic energy in transmitting and receiving device |
US7666152B2 (en) * | 2006-02-06 | 2010-02-23 | Moshe Ein-Gal | Focusing electromagnetic acoustic wave source |
US20080009774A1 (en) * | 2006-06-15 | 2008-01-10 | Capelli Christopher C | Methods of diminishing permanent tissue markings and related apparatus |
US20080262483A1 (en) * | 2007-04-17 | 2008-10-23 | University Of Pittsburgh-Of The Commonwealth System Of Higher Education | Method for removing permanent tissue markings |
EP2092916A1 (fr) * | 2008-02-19 | 2009-08-26 | Institut National De La Sante Et De La Recherche Medicale (Inserm) | Procédé pour le traitement d'une pathologie oculaire par l'application d'ultrasons haute intensité concentrés et dispositif correspondant |
DE102008038214B4 (de) * | 2008-08-18 | 2013-12-05 | Siemens Aktiengesellschaft | Verfahren und Stoßwellenkopf zum Erzeugen von fokussierten Ultraschall-Stoßwellen |
US20100204617A1 (en) * | 2009-02-12 | 2010-08-12 | Shmuel Ben-Ezra | Ultrasonic probe with acoustic output sensing |
RU2515509C2 (ru) * | 2009-02-18 | 2014-05-10 | Ай Тек Кэар | Ультразвуковое устройство, содержащее средства для генерации луча ультразвука, которые имеют форму вогнутых сегментов с одной кривизной |
EP2398432B1 (fr) * | 2009-02-18 | 2017-09-06 | Eye Tech Care | Dispositif pour le traitement d'une pathologie oculaire par l'application d'ultrasons haute intensité concentrés |
US9174065B2 (en) * | 2009-10-12 | 2015-11-03 | Kona Medical, Inc. | Energetic modulation of nerves |
US20160059044A1 (en) | 2009-10-12 | 2016-03-03 | Kona Medical, Inc. | Energy delivery to intraparenchymal regions of the kidney to treat hypertension |
US8986211B2 (en) | 2009-10-12 | 2015-03-24 | Kona Medical, Inc. | Energetic modulation of nerves |
US8986231B2 (en) | 2009-10-12 | 2015-03-24 | Kona Medical, Inc. | Energetic modulation of nerves |
RU2523129C2 (ru) * | 2009-10-12 | 2014-07-20 | Кона Медикал, Инк. | Энергетическая модуляция нервов |
US8469904B2 (en) | 2009-10-12 | 2013-06-25 | Kona Medical, Inc. | Energetic modulation of nerves |
US8295912B2 (en) | 2009-10-12 | 2012-10-23 | Kona Medical, Inc. | Method and system to inhibit a function of a nerve traveling with an artery |
US20110118600A1 (en) * | 2009-11-16 | 2011-05-19 | Michael Gertner | External Autonomic Modulation |
US9119951B2 (en) | 2009-10-12 | 2015-09-01 | Kona Medical, Inc. | Energetic modulation of nerves |
US20110092880A1 (en) * | 2009-10-12 | 2011-04-21 | Michael Gertner | Energetic modulation of nerves |
DE102009049487B4 (de) * | 2009-10-15 | 2015-05-13 | Richard Wolf Gmbh | Elektroakustischer Wandler |
JP6078343B2 (ja) | 2010-01-19 | 2017-02-08 | ボード・オブ・リージエンツ,ザ・ユニバーシテイ・オブ・テキサス・システム | 高周波数衝撃波を発生させるための装置およびシステム、ならびに使用方法 |
WO2012025833A2 (fr) | 2010-08-27 | 2012-03-01 | Socpra- Sciences Et Génie, S.E.C. | Générateur d'ondes mécaniques et procédé associé |
AR087170A1 (es) | 2011-07-15 | 2014-02-26 | Univ Texas | Aparato para generar ondas de choque terapeuticas y sus aplicaciones |
US20130340530A1 (en) * | 2012-06-20 | 2013-12-26 | General Electric Company | Ultrasonic testing device with conical array |
US10835767B2 (en) | 2013-03-08 | 2020-11-17 | Board Of Regents, The University Of Texas System | Rapid pulse electrohydraulic (EH) shockwave generator apparatus and methods for medical and cosmetic treatments |
US10925579B2 (en) | 2014-11-05 | 2021-02-23 | Otsuka Medical Devices Co., Ltd. | Systems and methods for real-time tracking of a target tissue using imaging before and during therapy delivery |
CA2985811A1 (fr) | 2015-05-12 | 2016-11-17 | Soliton, Inc. | Procedes de traitement de la cellulite et du tissu adipeux sous-cutane |
TWI742110B (zh) | 2016-07-21 | 2021-10-11 | 美商席利通公司 | 具備改良電極壽命之快速脈波電動液壓脈衝產生裝置及使用該裝置生成壓縮聲波之方法 |
WO2018152460A1 (fr) | 2017-02-19 | 2018-08-23 | Soliton, Inc. | Rupture optique sélective induite par laser dans un milieu biologique |
CN107569271A (zh) * | 2017-09-22 | 2018-01-12 | 优超医疗科技(徐州)有限公司 | 一种冲击波碎石装置及其碎石方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3866711A (en) * | 1973-06-04 | 1975-02-18 | Us Navy | Solid ultrasonic lens doublet |
US4029395A (en) * | 1975-10-31 | 1977-06-14 | Westinghouse Electric Corporation | Method for altering the focal zone of a lens system |
DE3150513A1 (de) * | 1981-12-21 | 1983-06-30 | Battelle-Institut E.V., 6000 Frankfurt | "vorrichtung zur lokalen hyperthermiebehandlung" |
US4401910A (en) * | 1981-11-30 | 1983-08-30 | Analogic Corporation | Multi-focus spiral ultrasonic transducer |
GB2126901A (en) * | 1982-09-15 | 1984-04-04 | Varian Associates | Hyperthermia applicator |
EP0367117A2 (fr) * | 1988-10-31 | 1990-05-09 | Kabushiki Kaisha Toshiba | Appareillage générateur d'ondes de choc formant une large région de désintégration des concrétions par ondes de choc convergentes |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3119295A1 (de) * | 1981-05-14 | 1982-12-16 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zum zerstoeren von konkrementen in koerperhoehlen |
EP0068961A3 (fr) * | 1981-06-26 | 1983-02-02 | Thomson-Csf | Dispositif d'échauffement localisé de tissus biologiques |
DE3417985C2 (de) * | 1984-05-15 | 1986-03-27 | Dornier System Gmbh, 7990 Friedrichshafen | Vorrichtung zur berührungsfreien Zerkleinerung von Konkrementen |
DE3510341A1 (de) * | 1985-03-22 | 1986-10-02 | Richard Wolf Gmbh, 7134 Knittlingen | Schallsender zur erzeugung akustischer impulse |
DE3543867C3 (de) * | 1985-12-12 | 1994-10-06 | Wolf Gmbh Richard | Vorrichtung zur räumlichen Ortung und zur Zerstörung von Konkrementen in Körperhöhlen |
DE3888273T3 (de) * | 1987-09-30 | 1997-06-05 | Toshiba Kawasaki Kk | Medizinischer Apparat zur Behandlung mit Ultraschall. |
JPH0722578B2 (ja) * | 1988-12-09 | 1995-03-15 | 松下電器産業株式会社 | 超音波探触子 |
DE3932959C1 (fr) * | 1989-10-03 | 1991-04-11 | Richard Wolf Gmbh, 7134 Knittlingen, De | |
US5050588A (en) * | 1990-02-08 | 1991-09-24 | Richard Grey | High energy ultrasonic lens assembly with mounting facets |
-
1989
- 1989-10-03 DE DE3932967A patent/DE3932967A1/de active Granted
-
1990
- 1990-09-10 US US07/580,226 patent/US5193527A/en not_active Expired - Fee Related
- 1990-09-28 EP EP90118644A patent/EP0421290A1/fr not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3866711A (en) * | 1973-06-04 | 1975-02-18 | Us Navy | Solid ultrasonic lens doublet |
US4029395A (en) * | 1975-10-31 | 1977-06-14 | Westinghouse Electric Corporation | Method for altering the focal zone of a lens system |
US4401910A (en) * | 1981-11-30 | 1983-08-30 | Analogic Corporation | Multi-focus spiral ultrasonic transducer |
DE3150513A1 (de) * | 1981-12-21 | 1983-06-30 | Battelle-Institut E.V., 6000 Frankfurt | "vorrichtung zur lokalen hyperthermiebehandlung" |
GB2126901A (en) * | 1982-09-15 | 1984-04-04 | Varian Associates | Hyperthermia applicator |
EP0367117A2 (fr) * | 1988-10-31 | 1990-05-09 | Kabushiki Kaisha Toshiba | Appareillage générateur d'ondes de choc formant une large région de désintégration des concrétions par ondes de choc convergentes |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992008413A1 (fr) * | 1990-11-20 | 1992-05-29 | Storz Medical Ag | Dispositif pour la generation d'ondes sonores acoustiques focalisees |
WO1993021626A1 (fr) * | 1991-01-28 | 1993-10-28 | Siemens Aktiengesellschaft | Generateur d'impulsions acoustiques de pression, notamment en therapie de maladies des os |
DE19927481C1 (de) * | 1999-06-16 | 2000-06-29 | Siemens Ag | Akustische Fokussiereinrichtung mit veränderbarem Fokusabstand |
WO2008003910A1 (fr) * | 2006-07-05 | 2008-01-10 | Edap S.A. | Appareil de therapie a fonctionnement sequentiel |
FR2903316A1 (fr) | 2006-07-05 | 2008-01-11 | Edap S A | Sonde de therapie et appareil de therapie incluant une telle sonde |
Also Published As
Publication number | Publication date |
---|---|
US5193527A (en) | 1993-03-16 |
DE3932967C2 (fr) | 1992-03-26 |
DE3932967A1 (de) | 1991-04-11 |
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