EP0298334B1 - Dispositif générateur d'ondes de choc - Google Patents

Dispositif générateur d'ondes de choc Download PDF

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Publication number
EP0298334B1
EP0298334B1 EP88110225A EP88110225A EP0298334B1 EP 0298334 B1 EP0298334 B1 EP 0298334B1 EP 88110225 A EP88110225 A EP 88110225A EP 88110225 A EP88110225 A EP 88110225A EP 0298334 B1 EP0298334 B1 EP 0298334B1
Authority
EP
European Patent Office
Prior art keywords
shock wave
membrane
wave source
source according
shock
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.)
Expired - Lifetime
Application number
EP88110225A
Other languages
German (de)
English (en)
Other versions
EP0298334A1 (fr
Inventor
Manfred Rattner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0298334A1 publication Critical patent/EP0298334A1/fr
Application granted granted Critical
Publication of EP0298334B1 publication Critical patent/EP0298334B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • 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 a shock wave source for the treatment of concretions in the body of a patient with a liquid-filled shock wave tube, one end of which is closed by a flexible sack that can be pressed against the patient by means of the liquid pressure and the other end of which is a membrane with an electrically conductive material which, separated by an insulating material layer, opposite a surface coil which is connected to a supply unit for generating high-voltage pulses.
  • shock wave source of this kind, e.g. EP-A-0 209 053 focused shock waves can be generated which are directed to the concrement to be broken, e.g. a kidney stone, can be straightened and smashed it so far that it comes off naturally.
  • the shock wave is generated by the fact that a high-voltage capacitor is connected across the surface coil, e.g. can have a spiral winding, is discharged, repelling the membrane and directing a shock wave over the liquid and possibly an acoustic lens in the shock wave tube to the stone to be broken.
  • the invention has for its object to design the membrane in a shock wave source of the type mentioned so that a favorable shock wave course is achieved.
  • the membrane has a flexible base which is covered by a plurality of plates made of electrically conductive material.
  • each of the plates provided on the membrane is repelled.
  • the propagation of the shock wave is much faster in the edge area of the membrane compared to a homogeneous membrane.
  • An optimal shock wave course can be achieved if the platelets have different mass inertia and / or electrical conductivity.
  • the desired shock wave course can be achieved by a suitable choice of the inertia and / or conductivity.
  • the membrane can be flat, but also curved. Suitable curvature can be used to focus the shock waves without an acoustic lens.
  • the shock wave source according to FIGS. 1 and 2 has a shock wave tube 1, which is closed on its application side by an elastic bag 2 that can be placed on a patient and on its opposite side by a membrane 3.
  • the space between components 1, 2, 3 is filled with water as the coupling medium.
  • An acoustic lens 4 for focusing the generated shock waves is arranged in it.
  • the shock wave is generated with the aid of a surface coil 6 opposite the membrane, which is spirally wound and separated from the membrane 3 by an insulating layer 7.
  • One connection of the surface coil 6 is grounded and the second connection can be connected to a high-voltage generator 8 for generating shock waves.
  • the membrane 3 has a flexible base 9, for example a rubber sheet made of a variety of Plate 10 is coated from an electrically conductive material.
  • the plates 10 are hexagonal in the example and therefore have a high area coverage. Other shapes with high surface coverage, for example rectangular or square shapes, are also conceivable.
  • the high-voltage pulse generated in this way causes the membrane 3 to be repelled, as a result of which a shock wave propagates through the water in the shock-wave tube 1 to the stone in the patient.
  • the large number of platelets 10 results in a favorable shock wave course, in particular rapid shock wave generation in the edge region of the membrane 3.
  • the desired shock wave course can be achieved by a suitable choice of the inertia and / or electrical conductivity of the individual platelets 10.
  • FIG. 3 there is a membrane 3a curved around a focus area 11, which is again covered on its inside with platelets 10a made of conductive material of suitable inertia.
  • the surface coil 6a like the membrane 3a and the insulating material layer 7a, is curved around the focus area 11. No acoustic lens is provided in the water-filled space between the bag 2a and the membrane 3a since the focusing is achieved by the curvature of the components 3a, 6a, 7a, 9a.
  • the coil support 12 can have a central hole 13, which makes it possible to insert an ultrasound probe to locate the concrements.
  • a membrane 3b is provided in the housing 1b closed by the bag 2b and is curved toward the interior of the shock wave source.
  • the shock waves generated by the platelets 10b are directed against the inner wall of the cylindrical housing 1b and are reflected from there to the focus area 11.
  • the carrier 14 for the surface coil 6b has a central opening 15 for the insertion of the ultrasound probe 16.
  • An insulating material layer 7b and the membrane 3b with the components 9b, 10b again lie over the surface coil 6b.
  • the embodiment according to FIG. 3 allows a relatively short lead section for higher-frequency pulses, while the embodiment according to FIG. 4 has a relatively long water lead section.
  • the platelets 10, 10a, 10b can be vulcanized, glued or laminated onto the flexible base 9, 9a, 9b.
  • the shock wave source 3c, 6c, 7c, 9c, 10c is frustoconical.
  • the inner wall of the shock wave tube 1c is step-shaped, that is, it forms step reflectors for focusing on the focus area 11.

Claims (6)

1. Générateur d'ondes de choc pour le traitement de concrétions dans le corps d'un patient, comportant un tube à ondes de choc (1, 1a, 1b, 1c) rempli par un liquide, dont une extrémité peut être fermée par un sac flexible (2, 2a, 2b, 2c) pouvant être comprimé contre le patient sous l'effet de la pression du liquide, et à l'autre extrémité duquel est disposée une membrane (3, 3a, 3b, 3c) portant un matériau électriquement conducteur (10, 10a, 10b, 10c), situé en vis-à-vis d'une bobine plate (6a, 6b, 6c), en en étant séparé par une couche de matériau isolant (7, 7a, 7b, 7c), cette bobine étant raccordée à une unité d'alimentation (8) servant à produire des impulsions à haute tension, caractérisé par le fait que la membrane (3, 3a, 3b, 3c) possède une base flexible (9, 9a, 9b, 9c), qui est recouverte par une multiplicité de plaquettes (10, 10a, 10b, 10c) réalisées en un matériau électriquement conducteur.
2. Générateur d'ondes de choc suivant la revendication 1, caractérisé par le fait que les plaquettes (10, 10a, 10b, 10c) possèdent des inerties de masse différentes et/ou des conductivités électriques différentes.
3. Générateur d'ondes de choc suivant la revendication 1 ou 2, caractérisé par le fait que les plaquettes (10, 10a, 10b, 10c) possèdent une forme fournissant un recouvrement étendu en surface.
4. Générateur d'ondes de choc suivant l'une des revendications 1 à 3, caractérisé par le fait que la membrane (3a) est cintrée autour d'une zone focale (11).
5. Générateur d'ondes de choc suivant l'une des revendications 1 à 3, caractérisé par le fait que la membrane (3b) est cintrée en direction de l'intérieur du générateur d'ondes de choc de telle manière que les ondes de choc sont dirigées vers la paroi intérieure du boîtier cylindrique (1b) du générateur d'ondes de choc et sont réfléchies, à partir de là, en direction d'une zone focale (11).
6. Générateur d'ondes de choc suivant l'une des revendications 1 à 3, caractérisé par le fait que la membrane (3c) forme l'enveloppe d'un cône dirigé vers l'intérieur du tube à ondes de choc et que la paroi intérieure du tube à ondes de choc (1c) est agencée avec une forme étagée pour la réflexion des ondes de choc.
EP88110225A 1987-07-07 1988-06-27 Dispositif générateur d'ondes de choc Expired - Lifetime EP0298334B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8709363U DE8709363U1 (fr) 1987-07-07 1987-07-07
DE8709363U 1987-07-07

Publications (2)

Publication Number Publication Date
EP0298334A1 EP0298334A1 (fr) 1989-01-11
EP0298334B1 true EP0298334B1 (fr) 1991-06-12

Family

ID=6809817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110225A Expired - Lifetime EP0298334B1 (fr) 1987-07-07 1988-06-27 Dispositif générateur d'ondes de choc

Country Status (3)

Country Link
US (1) US4901709A (fr)
EP (1) EP0298334B1 (fr)
DE (2) DE8709363U1 (fr)

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DE3835318C1 (fr) * 1988-10-17 1990-06-28 Storz Medical Ag, Kreuzlingen, Ch
DE3907605C2 (de) * 1989-03-09 1996-04-04 Dornier Medizintechnik Stosswellenquelle
DE3925322C2 (de) * 1989-07-31 1995-07-13 Storz Medical Ag Vorrichtung zur therapeutischen Behandlung mit fokussierten akustischen Wellenfeldern
EP0412202A1 (fr) * 1989-08-11 1991-02-13 Siemens Aktiengesellschaft Source d'ondes de choc pour la production d'ondes de choc focalisées avec un réflecteur en forme de paraboloide de révolution
DE3932745A1 (de) * 1989-09-30 1991-04-18 Dornier Medizintechnik Flachspule
DE3942253A1 (de) * 1989-12-21 1991-06-27 Dornier Medizintechnik Halterung eines diagnostischen ultraschall-transducers
DE4117638A1 (de) * 1990-05-30 1991-12-05 Toshiba Kawasaki Kk Stosswellengenerator mit einem piezoelektrischen element
EP0461287B1 (fr) * 1990-06-13 1994-05-04 Siemens Aktiengesellschaft Générateur d'ondes de choc entraîné électriquement
US5233972A (en) * 1990-09-27 1993-08-10 Siemens Aktiengesellschaft Shockwave source for acoustic shockwaves
DE4038651C2 (de) * 1990-12-04 1999-10-28 Siemens Ag Druckimpulsgenerator
US5350352A (en) * 1991-02-21 1994-09-27 Siemens Aktiengesellschaft Acoustic pressure pulse generator
DE4110102A1 (de) * 1991-03-27 1992-10-01 Siemens Ag Elektromagnetische druckimpulsquelle
DE4120259A1 (de) * 1991-06-19 1992-12-24 Siemens Ag Generator zur erzeugung akustischer wellen
DE4125088C1 (fr) * 1991-07-29 1992-06-11 Siemens Ag, 8000 Muenchen, De
DE19602686A1 (de) * 1995-01-26 1996-08-08 Storz Medical Ag Vorrichtung zur Behandlung von Zähnen
SE504146C2 (sv) * 1995-03-16 1996-11-18 Lars Ekberg Ultraljudsond
US5941838A (en) * 1996-07-26 1999-08-24 Dornier Medizintechnik Gmbh Shock wave source based on the electromagnetic principle
DE19630180C1 (de) * 1996-07-26 1997-10-09 Dornier Medizintechnik Stoßwellenquelle nach dem elektromagnetischen Prinzip
IL119305A0 (en) * 1996-09-26 1996-12-05 Palanker Daniel A method and a device for electro microsurgery in a physiological liquid environment
US6352535B1 (en) 1997-09-25 2002-03-05 Nanoptics, Inc. Method and a device for electro microsurgery in a physiological liquid environment
DE19723499C1 (de) * 1997-06-05 1998-08-13 Dornier Medizintechnik Stoßwellenquelle nach dem elektromagnetischen Prinzip
US6780178B2 (en) 2002-05-03 2004-08-24 The Board Of Trustees Of The Leland Stanford Junior University Method and apparatus for plasma-mediated thermo-electrical ablation
US8043286B2 (en) 2002-05-03 2011-10-25 The Board Of Trustees Of The Leland Stanford Junior University Method and apparatus for plasma-mediated thermo-electrical ablation
DE10228830B4 (de) * 2002-06-27 2007-05-03 Siemens Ag Balg zur Ankopplung einer ein akustisches Ausbreitungsmedium aufweisenden Quelle akustischer Wellen an ein Lebewesen
WO2004073752A2 (fr) * 2003-02-14 2004-09-02 The Board Of Trustees Of The Leland Stanford Junior University Systeme electrochirugical avec champ electrique renforce uniformement et degats colateraux minimum
US7736361B2 (en) 2003-02-14 2010-06-15 The Board Of Trustees Of The Leland Stamford Junior University Electrosurgical system with uniformly enhanced electric field and minimal collateral damage
CA2529512A1 (fr) * 2003-06-18 2004-12-29 The Board Of Trustees Of The Leland Stanford Junior University Manipulateur de tissus electro-adhesif
AU2007317958B2 (en) 2006-11-02 2013-08-22 Peak Surgical, Inc. Electric plasma-mediated cutting and coagulation of tissue and surgical apparatus
US20090306642A1 (en) * 2008-06-10 2009-12-10 Vankov Alexander B Method for low temperature electrosugery and rf generator
US8137345B2 (en) 2009-01-05 2012-03-20 Peak Surgical, Inc. Electrosurgical devices for tonsillectomy and adenoidectomy
EP3117784B1 (fr) 2009-07-08 2018-12-26 Sanuwave, Inc. Utilisation d'ondes de choc de pression intracorporelle en médecine
WO2012170364A1 (fr) 2011-06-10 2012-12-13 Medtronic, Inc. Dispositifs d'électrode en fil pour une amygdalectomie et une adénoïdectomie
WO2013082352A1 (fr) 2011-12-01 2013-06-06 Microbrightfield, Inc. Traitement à médiation par onde de pression acoustique/onde de choc d'un tissu biologique, et systèmes, appareils et procédés correspondants
CN104138638B (zh) * 2014-07-15 2017-06-20 深圳市慧康精密仪器有限公司 一种勃起功能障碍冲击波治疗仪
NL2013968B1 (en) * 2014-12-12 2016-10-11 Fugro N V Pressure tolerant seismic source.
US10658912B2 (en) * 2017-03-31 2020-05-19 Lite-Med Inc. Shock wave generating unit
KR102303492B1 (ko) * 2021-02-19 2021-09-24 (주)영인바이오텍 디스크형 코일을 활용한 전자기식 체외충격파 치료기
CN113925761A (zh) * 2021-11-16 2022-01-14 深圳市慧康精密仪器有限公司 一种女性用冲击波治疗仪

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DE3328068A1 (de) * 1983-08-03 1985-02-21 Siemens AG, 1000 Berlin und 8000 München Einrichtung zum beruehrungslosen zertruemmern von konkrementen
EP0209053A3 (fr) * 1985-07-18 1987-09-02 Wolfgang Prof. Dr. Eisenmenger Procédé et appareil de destruction à distance des concrétions à l'intérieur d'un organisme vivant
DE8627238U1 (fr) * 1986-10-06 1988-02-04 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De

Also Published As

Publication number Publication date
EP0298334A1 (fr) 1989-01-11
DE8709363U1 (fr) 1988-11-03
US4901709A (en) 1990-02-20
DE3863238D1 (de) 1991-07-18

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