EP0162959A1 - Apparatus for the contactless disintegration of concrements - Google Patents

Apparatus for the contactless disintegration of concrements Download PDF

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Publication number
EP0162959A1
EP0162959A1 EP84115384A EP84115384A EP0162959A1 EP 0162959 A1 EP0162959 A1 EP 0162959A1 EP 84115384 A EP84115384 A EP 84115384A EP 84115384 A EP84115384 A EP 84115384A EP 0162959 A1 EP0162959 A1 EP 0162959A1
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EP
European Patent Office
Prior art keywords
coil
shock wave
concrement
spherical cap
center
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.)
Granted
Application number
EP84115384A
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German (de)
French (fr)
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EP0162959B1 (en
Inventor
Alfred Hahn
Georg Vogel
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Siemens AG
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Siemens AG
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Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0162959A1 publication Critical patent/EP0162959A1/en
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Publication of EP0162959B1 publication Critical patent/EP0162959B1/en
Expired legal-status Critical Current

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    • 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

Definitions

  • the invention relates to a device for the contactless smashing of concrements located in the body of a living being with a shock wave generator, which is aimed at a target area in the body and which has a coil lying in one surface, in front of which there is a radiating element, which has a space filled with a liquid completes and generates a shock wave when the coil is briefly switched on to a high voltage.
  • the coil can be designed as a flat coil and can lie at one end of a shock wave tube that is closed on all sides and filled with liquid.
  • a flexible sack can be provided with which the shock wave tube is placed on the surface of the body to be treated.
  • an acoustic lens can be arranged in the shock wave tube, which lens can be adjusted to focus the shock wave. Due to the constructive design of such a device, a relatively large overall length of about half a meter is given.
  • the invention has for its object to simplify a device of the type mentioned in that the acoustic lens for focusing is unnecessary.
  • the coil and the radiating member have the shape of a spherical cap.
  • the shock wave is concentrated on the center of the sphere, in which the concretion to be broken must be positioned.
  • the radiating element from which the shock wave emanates can form the part of the wall of a liquid-filled trough in which the body lies in order to break up the concrement.
  • a membrane 2 is inserted, which is made of flexible material and carries a spherical cap 3, which serves as a radiation element for the shock waves.
  • the membrane 2 is fastened elastically in the treatment tub 1 with the aid of a screw connection.
  • a coil 4 which like the parts 2 and 3 has the shape of a spherical cap. It runs spirally from a point at the apex of the spherical cap to the edge of the spherical cap.
  • the connections 5, 6 to the coil 4 are accordingly provided in the middle and on the edge of the coil 4.
  • this body is positioned in the water-filled treatment trough 1 such that the concretion 7 lies in the center of the spherical cap defined by the coil 4 and the spherical cap 3, which may be rigid. Then a high voltage is generated via a capacitor-resistor circuit, the several kV, z. B. 20 kV. This high voltage is briefly applied to the coil 4, with at least a portion of the energy stored in the capacitor suddenly discharging into the coil 4. A magnetic field is built up very quickly, which in the z. B. made of copper spherical cap 3 induces a current which is opposite to the current in the coil 4 and generates an opposing magnetic field.
  • the spherical cap 3 Due to the force of the opposing field, the spherical cap 3 is knocked away from the coil 4, the membrane 2 yielding resiliently. This knocking away of the spherical cap 3 generates a shock wave which is concentrated in the center of the spherical cap 3 and thus in the concrement positioned there. As a result, the calculus 7 is smashed.

Abstract

Die Erfindung bezieht sich auf eine Einrichtung zum berührungslosen Zertrümmern eines im Körper eines Lebewesens befindlichen Konkrements (7) mit einem Stoßwellengenerator, der auf ein Zielgebiet im Körper ausgerichtet ist und der ein Spule (4) aufweist, die die Form einer Kugelkalotte hat. Vor der Spule (4) ist ein ebenfalls Kalottenförmiges Abstrahlglied (3) angeordnet, das einen mit einer Flüssigkeit gefüllten Raum abschließt und darin beim kurzzeitigen Anschalten der Spule (4) an eine Hochspannung eine auf den Kugelmittelpunkt forkussierte Stoßwelle erzeugt. Das zu zertrümmernde Konkrement (7) wird im Kugelmittelpunkt angeordnet.The invention relates to a device for the contactless smashing of a concrement (7) located in the body of a living being with a shock wave generator which is aimed at a target area in the body and which has a coil (4) which has the shape of a spherical cap. In front of the coil (4) there is also a dome-shaped radiating element (3) which closes off a space filled with a liquid and generates a shock wave forked onto the center of the sphere when the coil (4) is briefly switched on to a high voltage. The concrement (7) to be broken up is arranged in the center of the sphere.

Description

Die Erfindung betrifft eine Einrichtung zum berührungslosen Zertrümmern von im Körper eines Lebewesens befindlichen Konkrementen mit einem Stoßwellengenerator, der auf ein Zielgebiet im Körper ausgerichtet ist und der eine in einer Fläche liegende Spule aufweist, vor der ein Abstrahlglied liegt, das einen mit einer Flüssigkeit gefüllten Raum abschließt und darin beim kurzzeitigen Anschalten der Spule an eine Hochspannung eine Stoßwelle erzeugt.The invention relates to a device for the contactless smashing of concrements located in the body of a living being with a shock wave generator, which is aimed at a target area in the body and which has a coil lying in one surface, in front of which there is a radiating element, which has a space filled with a liquid completes and generates a shock wave when the coil is briefly switched on to a high voltage.

Die Spule kann gemäß der Zeitschrift "Akustische Beihefte", 1962, Heft 1, Seiten 185 bis 202, als Flachspule ausgebildet sein und an einem Ende eines allseitig geschlossenen, mit Flüssigkeit gefüllten Stoßwellenrohres liegen. Am anderen Ende des Stoßwellenrohres kann dabei ein flexibler Sack vorgesehen werden, mit dem das Stoßwellenrohr an der Oberfläche des zu behandelnden Körpers angelegt wird. Da in diesem Fall die erzeugte Stoßwelle eben ist und auf das jeweilige Konkrement konzentriert werden muß, kann hierzu im Stoßwellenrohr eine akustische Linse angeordnet werden, die zur Fokussierung der Stoßwelle einstellbar ist. Aufgrund der konstruktiven Ausbildung einer solchen Einrichtung ist eine relativ große Baulänge von etwa einem halben Meter gegeben.According to the magazine "Akustische Beihefte", 1962, number 1, pages 185 to 202, the coil can be designed as a flat coil and can lie at one end of a shock wave tube that is closed on all sides and filled with liquid. At the other end of the shock wave tube, a flexible sack can be provided with which the shock wave tube is placed on the surface of the body to be treated. In this case, since the shock wave generated is flat and must be concentrated on the respective concretion, an acoustic lens can be arranged in the shock wave tube, which lens can be adjusted to focus the shock wave. Due to the constructive design of such a device, a relatively large overall length of about half a meter is given.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung der eingangs genannten Art dadurch zu vereinfachen, daß die akustische Linse zur Fokussierung entbehrlich ist.The invention has for its object to simplify a device of the type mentioned in that the acoustic lens for focusing is unnecessary.

Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß die Spule und das Abstrahlglied die Form einer Kugelkalotte haben. Bei dieser Ausbildung wird die Stoßwelle auf den Kugelmittelpunkt konzentriert, in dem das jeweils zu zertrümmernde Konkrement positioniert werden muß. Das Abstrahlglied, von dem die Stoßwelle ausgeht, kann den Teil der Wandung einer flüssigkeitsgefüllten Wanne bilden, in der der Körper zur Zertrümmerung des Konkrementes liegt.This object is achieved in that the coil and the radiating member have the shape of a spherical cap. In this embodiment, the shock wave is concentrated on the center of the sphere, in which the concretion to be broken must be positioned. The radiating element from which the shock wave emanates can form the part of the wall of a liquid-filled trough in which the body lies in order to break up the concrement.

Die Erfindung ist nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert.The invention is explained below with reference to an embodiment shown in the drawing.

In der Zeichnung ist der untere Teil einer Behandlungswanne 1 dargestellt, in den eine Membran 2 eingesetzt ist, die aus flexiblem Material besteht und eine Kugelkalotte 3 trägt, welche als Abstrahlglied für die Stoßwellen dient. Die Membran 2 ist in der Behandlungswanne 1 mit Hilfe einer Verschraubung elastisch befestigt. Unter der Membran 2 liegt eine Spule 4, die wie die Teile 2 und 3 die Form einer Kugelkalotte hat. Sie verläuft dabei von einer im Scheitelpunkt der Kugelkalotte liegenden Stelle aus spiralig bis zum Rand der Kugelkalotte. Die Anschlüsse 5, 6 zur Spule 4 sind demgemäß in der Mitte und am Rand der Spule 4 vorgesehen.In the drawing, the lower part of a treatment trough 1 is shown, in which a membrane 2 is inserted, which is made of flexible material and carries a spherical cap 3, which serves as a radiation element for the shock waves. The membrane 2 is fastened elastically in the treatment tub 1 with the aid of a screw connection. Under the membrane 2 is a coil 4, which like the parts 2 and 3 has the shape of a spherical cap. It runs spirally from a point at the apex of the spherical cap to the edge of the spherical cap. The connections 5, 6 to the coil 4 are accordingly provided in the middle and on the edge of the coil 4.

Zur Zertrümmerung eines Konkrements 7 im Körper eines Lebewesens wird dieser Körper in der wassergefüllten Behandlungswanne 1 so positioniert, daß das Konkrement 7 im Mittelpunkt der von der Spule 4 definierten Kugelkalotte und der gegebenenfalls starr ausgebildeten Kugelkalotte 3 liegt. Dann wird über eine Kondensator-Widerstands-Schaltung eine Hochspannung erzeugt, die mehrere kV, z. B. 20 kV, betragen kann. Diese Hochnung wird kurzzeitig an die Spule 4 angelegt, wobei sich mindestens ein Teil der in dem Kondensator gespeicherten Energie schlagartig in die Spule 4 entlädt. Dabei wird sehr schnell ein magnetisches Feld aufgebaut, das in der z. B. aus Kupfer bestehenden Kugelkalotte 3 einen Strom induziert, der dem Strom in der Spule 4 entgegengerichtet ist und ein magnetisches Gegenfeld erzeugt. Durch die Kraftwirkung des Gegenfeldes wird die Kugelkalotte 3 von der Spule 4 weggeschlagen, wobei die Membran 2 federnd nachgibt. Dieses Wegschlagen der Kugelkalotte 3 erzeugt eine Stoßwelle, die im Zentrum der Kugelkalotte 3 und damit in dem dort positionierten Konkrement konzentriert wird. Dadurch wird das Konkrement 7 zertrümmert.To destroy a concretion 7 in the body of a living being, this body is positioned in the water-filled treatment trough 1 such that the concretion 7 lies in the center of the spherical cap defined by the coil 4 and the spherical cap 3, which may be rigid. Then a high voltage is generated via a capacitor-resistor circuit, the several kV, z. B. 20 kV. This high voltage is briefly applied to the coil 4, with at least a portion of the energy stored in the capacitor suddenly discharging into the coil 4. A magnetic field is built up very quickly, which in the z. B. made of copper spherical cap 3 induces a current which is opposite to the current in the coil 4 and generates an opposing magnetic field. Due to the force of the opposing field, the spherical cap 3 is knocked away from the coil 4, the membrane 2 yielding resiliently. This knocking away of the spherical cap 3 generates a shock wave which is concentrated in the center of the spherical cap 3 and thus in the concrement positioned there. As a result, the calculus 7 is smashed.

Claims (2)

1. Einrichtung zum berührungslosen Zertrümmern eines im Körper eines Lebewesens befindlichen Konkrements (7) mit einem Stoßwellengenerator, der auf ein Zielgebiet im Körper ausgerichtet ist und der eine in einer Fläche liegende Spule (4) aufweist, vor der ein Abstrahlglied (3) liegt, das einen mit einer Flüssigkeit gefüllten Raum abschließt und darin beim kurzzeitigen Anschalten der Spule (4) an eine Hochspannung eine Stoßwelle erzeugt, dadurch gekennzeichnet , daß die Spule (4) und das Abstrahlglied (3) jeweils die Form einer Kugelkalotte haben.1. Device for the contactless smashing of a concrement (7) located in the body of a living being with a shock wave generator which is aimed at a target area in the body and which has a coil (4) lying in one surface in front of which a radiation element (3) is located, which closes a space filled with a liquid and generates a shock wave when the coil (4) is briefly switched on to a high voltage, characterized in that the coil (4) and the radiating element (3) each have the shape of a spherical cap. 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet , daß das Abstrahlglied (3) in die Wandung einer flüssigkeitsgefüllten Wanne (1) eingesetzt ist, in der der Körper so positionierbar ist, daß das zu zertrümmernde Konkrement (7) im Kugelmittelpunkt liegt.2. Device according to claim 1, characterized in that the radiating member (3) is inserted into the wall of a liquid-filled trough (1), in which the body can be positioned so that the concrement (7) to be smashed lies in the center of the ball.
EP84115384A 1984-04-27 1984-12-13 Apparatus for the contactless disintegration of concrements Expired EP0162959B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8413031U 1984-04-27
DE8413031U DE8413031U1 (en) 1984-04-27 1984-04-27 Device for the contactless smashing of concrements

Publications (2)

Publication Number Publication Date
EP0162959A1 true EP0162959A1 (en) 1985-12-04
EP0162959B1 EP0162959B1 (en) 1988-05-04

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ID=6766351

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EP84115384A Expired EP0162959B1 (en) 1984-04-27 1984-12-13 Apparatus for the contactless disintegration of concrements

Country Status (5)

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US (1) US4655220A (en)
EP (1) EP0162959B1 (en)
JP (1) JPS60175212U (en)
CA (1) CA1255360A (en)
DE (2) DE8413031U1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0183236A2 (en) * 1984-11-28 1986-06-04 Wolfgang Prof. Dr. Eisenmenger Apparatus for the contactless disintegration of concrements in the bodies of living beings
EP0196353A2 (en) * 1985-04-04 1986-10-08 DORNIER SYSTEM GmbH Device for the avoidance or reduction of pain in extracorporal lithotripsy
DE4102447C1 (en) * 1991-01-28 1992-04-09 Siemens Ag, 8000 Muenchen, De
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
EP0515572A1 (en) * 1990-02-13 1992-12-02 Brigham And Women's Hospital Mri device used for generating pressure waves

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4813402A (en) * 1986-02-19 1989-03-21 Siemens Aktiengesellschaft Coupling member for a shock wave therapy device
EP0256203A1 (en) * 1986-06-05 1988-02-24 Siemens Aktiengesellschaft Shock wave generator for the disintegration of concretions in a living body by non-contacting means
EP0258561A1 (en) * 1986-07-08 1988-03-09 Siemens Aktiengesellschaft Shock-wave generator, particularly for lithotripsy
DE3789688D1 (en) * 1986-07-14 1994-06-01 Siemens Ag Shock wave generator for a device for the contactless smashing of concrements in the body of a living being.
DE3634378A1 (en) * 1986-10-09 1988-04-21 Wolf Gmbh Richard ELECTROMAGNETIC CONVERTER, ESPECIALLY SOUND TRANSMITTER FOR MEDICAL APPLICATIONS
US5582578A (en) * 1995-08-01 1996-12-10 Duke University Method for the comminution of concretions
US5800365A (en) * 1995-12-14 1998-09-01 Duke University Microsecond tandem-pulse electrohydraulic shock wave generator with confocal reflectors
EP1450697A4 (en) 2001-11-09 2009-09-09 Univ Duke Method and apparatus to reduce tissue injury in shock wave lithotripsy
US7894877B2 (en) * 2002-05-17 2011-02-22 Case Western Reserve University System and method for adjusting image parameters based on device tracking
US20100137754A1 (en) * 2007-01-10 2010-06-03 Yufeng Zhou Shock wave lithotripter system and a method of performing shock wave calculus fragmentation using the same
EP2467071B1 (en) 2009-08-19 2019-09-18 Duke University Acoustic lens for shockwave lithotripsy
US11589962B2 (en) 2017-05-10 2023-02-28 Florian Draenert Method for the non-invasive fragmentation of residual biomaterial after bone augmentation

Citations (5)

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US3626218A (en) * 1970-12-31 1971-12-07 Nasa Shock wave convergence apparatus
US3993973A (en) * 1975-03-17 1976-11-23 Huntec (70) Limited Underwater transient sound generator having pressure compensating fillet
DE2921444A1 (en) * 1979-05-26 1980-11-27 Wolf Gmbh Richard Non-invasive destruction of kidney stones - uses device with annular reflector and insulating support in focal line, having HV terminals and electrode segments
EP0090138A2 (en) * 1982-03-25 1983-10-05 DORNIER SYSTEM GmbH Apparatus for the disintegration of concretions in living bodies
DE3312014A1 (en) * 1983-04-02 1984-10-11 Wolfgang Prof. Dr. 7140 Ludwigsburg Eisenmenger Device for the contactless crushing of concrements in the body of living beings

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DE3319871A1 (en) * 1983-06-01 1984-12-06 Richard Wolf Gmbh, 7134 Knittlingen PIEZOELECTRIC CONVERTER FOR DESTROYING CONCRETE IN THE BODY

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3626218A (en) * 1970-12-31 1971-12-07 Nasa Shock wave convergence apparatus
US3993973A (en) * 1975-03-17 1976-11-23 Huntec (70) Limited Underwater transient sound generator having pressure compensating fillet
DE2921444A1 (en) * 1979-05-26 1980-11-27 Wolf Gmbh Richard Non-invasive destruction of kidney stones - uses device with annular reflector and insulating support in focal line, having HV terminals and electrode segments
EP0090138A2 (en) * 1982-03-25 1983-10-05 DORNIER SYSTEM GmbH Apparatus for the disintegration of concretions in living bodies
DE3312014A1 (en) * 1983-04-02 1984-10-11 Wolfgang Prof. Dr. 7140 Ludwigsburg Eisenmenger Device for the contactless crushing of concrements in the body of living beings

Non-Patent Citations (1)

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ULTRASONICS, Band 5, April 1967, Seiten 105-107; P.P. LELE: "Production of deep focal lesions by focused ultrasound-current status" *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0183236A2 (en) * 1984-11-28 1986-06-04 Wolfgang Prof. Dr. Eisenmenger Apparatus for the contactless disintegration of concrements in the bodies of living beings
EP0183236A3 (en) * 1984-11-28 1987-12-16 Wolfgang Prof. Dr. Eisenmenger Apparatus for the contactless disintegration of concrements in the bodies of living beings
EP0196353A2 (en) * 1985-04-04 1986-10-08 DORNIER SYSTEM GmbH Device for the avoidance or reduction of pain in extracorporal lithotripsy
EP0196353A3 (en) * 1985-04-04 1987-02-04 DORNIER SYSTEM GmbH Device for the avoidance or reduction of pain in extracorporal lithotripsy
EP0515572A1 (en) * 1990-02-13 1992-12-02 Brigham And Women's Hospital Mri device used for generating pressure waves
EP0515572A4 (en) * 1990-02-13 1993-04-07 Brigham And Women's Hospital Mri device used for generating pressure waves
DE4102447C1 (en) * 1991-01-28 1992-04-09 Siemens Ag, 8000 Muenchen, De
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

Also Published As

Publication number Publication date
CA1255360A (en) 1989-06-06
JPS60175212U (en) 1985-11-20
US4655220A (en) 1987-04-07
DE3470836D1 (en) 1988-06-09
JPH0246328Y2 (en) 1990-12-06
DE8413031U1 (en) 1984-07-05
EP0162959B1 (en) 1988-05-04

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