EP0266538B1 - Stosswellenquelle - Google Patents

Stosswellenquelle Download PDF

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Publication number
EP0266538B1
EP0266538B1 EP87113986A EP87113986A EP0266538B1 EP 0266538 B1 EP0266538 B1 EP 0266538B1 EP 87113986 A EP87113986 A EP 87113986A EP 87113986 A EP87113986 A EP 87113986A EP 0266538 B1 EP0266538 B1 EP 0266538B1
Authority
EP
European Patent Office
Prior art keywords
membrane
shock wave
conductive tracks
electrically conductive
distance
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
EP87113986A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0266538A1 (de
Inventor
Matthias Dipl.-Ing. Mahler
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 EP0266538A1 publication Critical patent/EP0266538A1/de
Application granted granted Critical
Publication of EP0266538B1 publication Critical patent/EP0266538B1/de
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

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 at the other end of which there is a membrane which is separated by an insulating material layer , opposite a surface coil, which is connected to a supply unit for generating high-voltage pulses.
  • a shock wave source of this type is e.g. used to crush kidney stones.
  • an acoustic lens is arranged in the shock wave tube, which bundles the shock waves generated with the aid of the surface coil and the membrane onto a focus in which the kidney stone is arranged.
  • the particles of the kidney stone created by crushing go off naturally.
  • the surface coil is formed by a spiral winding, one end of which is grounded.
  • the opposite membrane made of metal is also grounded. If a high-voltage pulse is applied to the surface coil, the membrane is magnetically repelled due to the eddy currents generated thereby and initially generates a flat shock wave in the liquid in the shock wave tube, which is focused onto the focus by an acoustic lens.
  • the voltage between the high-voltage side coil end and the membrane is equal to the maximum value of the high voltage, so that arcing can occur, through which the membrane can be destroyed.
  • the invention has for its object to provide a shock wave source of the type mentioned so that the risk of Arcing between the surface coil and the membrane compared to the prior art is reduced.
  • the membrane has an insulating disk on which electrically conductive tracks are applied, which are arranged such that in the event of a voltage flashover between the surface coil and the membrane, apart from twice the distance of the membrane from the surface coil, the distance between the electrically conductive tracks must be overcome.
  • the membrane is not electrically conductive in its entirety, but only has electrically conductive, mutually insulated tracks. The entire path that would have to be overcome in the event of a rollover thus comprises twice the distance between the electrically conductive tracks from the flat coil and additionally the distances between the individual conductive tracks and is accordingly considerably longer than in the prior art.
  • several conductive tracks as provided in accordance with the invention not only have the advantage of a distance to be overcome in the event of a rollover, but also the distance between the individual conductive tracks the advantage of a lower mass. Accordingly, in the case of several conductive paths for accelerating the membrane, less energy is required or, with the same energy, greater acceleration of the membrane and thus a steeper pressure increase of the generated shock wave can be achieved. A steepest possible increase in pressure is sought because shock waves are more suitable for crushing concrements, the steeper the pressure increase they have.
  • FIG. 1 shows a shock wave tube 1 which is filled with water as the coupling medium, the pressure of which can be controlled in a known manner, not shown.
  • the application side of the shock wave tube 1 is closed by an elastic bag 2.
  • the opposite side is closed by a membrane 3.
  • Inside the shock wave tube 1 there is an acoustic lens 4 for focusing the shock waves on one focus.
  • the high-voltage side end 6a of the surface coil 6 can be connected to a high-voltage generator 8 for generating high-voltage pulses, while the other end 6b of the surface coil 6 is grounded.
  • the surface coil is subjected to 6 high-voltage pulses from e.g. about 20 kV supplied.
  • 6 high-voltage pulses from e.g. about 20 kV supplied.
  • eddy currents are generated in the membrane 3, which cause the membrane 3 to be repelled by the surface coil 6, as a result of which plane shock waves are first generated in the water in the shock wave tube 1, which are then bundled in the manner described by the acoustic lens 4.
  • the membrane 3 according to FIG. 2 is formed by a circular insulating disk on which electrically conductive tracks 9, 10, 11, for example made of silver-plated copper, are applied are.
  • the tracks 9, 10 are designed as concentric rings.
  • the web 1 in the center of the membrane 3 is a disk-shaped support made of electrically conductive material on the insulating disk.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Surgical Instruments (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
EP87113986A 1986-10-06 1987-09-24 Stosswellenquelle Expired - Lifetime EP0266538B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8627238U 1986-10-06
DE8627238U DE8627238U1 (de) 1986-10-06 1986-10-06 Stoßwellenquelle

Publications (2)

Publication Number Publication Date
EP0266538A1 EP0266538A1 (de) 1988-05-11
EP0266538B1 true EP0266538B1 (de) 1991-11-27

Family

ID=6799143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113986A Expired - Lifetime EP0266538B1 (de) 1986-10-06 1987-09-24 Stosswellenquelle

Country Status (4)

Country Link
US (1) US4793329A (enrdf_load_stackoverflow)
EP (1) EP0266538B1 (enrdf_load_stackoverflow)
JP (1) JPH045151Y2 (enrdf_load_stackoverflow)
DE (2) DE8627238U1 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879993A (en) * 1986-10-29 1989-11-14 Siemens Aktiengesellschaft Shock wave source for generating a short initial pressure pulse
DE8706039U1 (de) * 1987-04-27 1988-08-25 Siemens AG, 1000 Berlin und 8000 München Stoßwellengenerator für eine Einrichtung zum berührungslosen Zertrümmern von Konkrementen im Körper eines Lebewesens
DE8709363U1 (de) * 1987-07-07 1988-11-03 Siemens AG, 1000 Berlin und 8000 München Stoßwellenquelle
DE3743822A1 (de) * 1987-12-23 1989-07-13 Dornier Medizintechnik Elektromagnetische stosswellenquelle
US5233972A (en) * 1990-09-27 1993-08-10 Siemens Aktiengesellschaft Shockwave source for acoustic shockwaves
DE4130796A1 (de) * 1990-09-27 1992-04-02 Siemens Ag Elektrisch antreibbare stosswellenquelle
DE4032357C1 (enrdf_load_stackoverflow) * 1990-10-12 1992-02-20 Dornier Medizintechnik Gmbh, 8000 Muenchen, De
DE4110102A1 (de) * 1991-03-27 1992-10-01 Siemens Ag Elektromagnetische druckimpulsquelle
CN113029495B (zh) * 2021-05-31 2021-08-03 中国工程物理研究院流体物理研究所 一种基于电弧放电驱动的高马赫激波管实验装置
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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312014C2 (de) * 1983-04-02 1985-11-07 Wolfgang Prof. Dr. 7140 Ludwigsburg Eisenmenger Einrichtung zur berührungsfreien Zertrümmerung von Konkrementen im Körper von Lebewesen
DE3328051A1 (de) * 1983-08-03 1985-02-14 Siemens AG, 1000 Berlin und 8000 München Einrichtung zum beruehrungslosen zertruemmern von konkrementen
DE3443295A1 (de) * 1984-11-28 1986-06-05 Wolfgang Prof. Dr. 7140 Ludwigsburg Eisenmenger Einrichtung zur beruehrungsfreien zertruemmerung von konkrementen im koerper von lebewesen
DE3447440A1 (de) * 1984-12-27 1986-07-03 Siemens AG, 1000 Berlin und 8000 München Stosswellenrohr fuer die zertruemmerung von konkrementen
DE3502751A1 (de) * 1985-01-28 1986-07-31 Siemens AG, 1000 Berlin und 8000 München Stosswellenrohr mit einer langen lebensdauer
DE3505894A1 (de) * 1985-02-20 1986-08-21 Siemens AG, 1000 Berlin und 8000 München Stosswellenrohr mit spule und membran
DE8521196U1 (de) * 1985-07-23 1985-08-29 Eisenmenger, Wolfgang, Prof. Dr., 7140 Ludwigsburg Membran-Spulen-Anordnung von elektromagnetischen Einrichtungen zur berührungsfreien Zertrümmerung von Konkrementen im Körper von Lebewesen

Also Published As

Publication number Publication date
DE8627238U1 (de) 1988-02-04
JPS6365411U (enrdf_load_stackoverflow) 1988-04-30
JPH045151Y2 (enrdf_load_stackoverflow) 1992-02-14
US4793329A (en) 1988-12-27
EP0266538A1 (de) 1988-05-11
DE3774835D1 (de) 1992-01-09

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