EP0419791A1 - Device for changing the electrodes in a non-contact lithotripter - Google Patents

Device for changing the electrodes in a non-contact lithotripter Download PDF

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Publication number
EP0419791A1
EP0419791A1 EP90114233A EP90114233A EP0419791A1 EP 0419791 A1 EP0419791 A1 EP 0419791A1 EP 90114233 A EP90114233 A EP 90114233A EP 90114233 A EP90114233 A EP 90114233A EP 0419791 A1 EP0419791 A1 EP 0419791A1
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EP
European Patent Office
Prior art keywords
electrode
ellipsoid
cylinder
changing
water
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Withdrawn
Application number
EP90114233A
Other languages
German (de)
French (fr)
Inventor
Theo Artmeier
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.)
Dornier Medizintechnik GmbH
Original Assignee
Dornier Medizintechnik GmbH
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 Dornier Medizintechnik GmbH filed Critical Dornier Medizintechnik GmbH
Publication of EP0419791A1 publication Critical patent/EP0419791A1/en
Withdrawn legal-status Critical Current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
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/04—Sound-producing devices
    • G10K15/06—Sound-producing devices using electric discharge

Definitions

  • the invention relates to a device for changing electrodes in contact-free lithotripsy with an electrode in a water-filled focusing ellipsoid.
  • the object of the invention is to provide a device which allows the electrode to be changed quickly after the electrode has expired, without loss of water occurring in the reflector.
  • a rotational ellipsoid 2 is closed with a membrane 4.
  • the housing 6 of the ellipsoid of revolution 2 has on one side a rotatable cylinder 8, in the bore 10 of which part of a sleeve 12 is located.
  • In the bore 14 of the sleeve 12 there is an electrode 16, the electrode tips 18 of which are exactly positioned in FIG. 1 in the focus F1 of the ellipsoid of revolution 2.
  • the positioning is ensured by means of a receiving part 20 with a stop 22 which is rigidly connected to the ellipsoid 2.
  • the electrode 16 is seated in the cylindrical receptacle 20, which is provided with seals 24, so that water cannot escape from the ellipsoid 2.
  • the part 20 of the receptacle is firmly seated in the ellipsoid 2.
  • the other part of the sleeve 12 opens at right angles into the cylinder 8 (like a shut-off valve), which is rotatably mounted.
  • a high-voltage plug (not shown) has been removed, it is pulled out to such an extent that the basket 26 is located within the cylinder 8.
  • the water is now up to the seal 34 in the cylinder 8 and up to the seal 32 in the sleeve 12.
  • vent hole 28 which, however, has no connection to the outside in this position of the locking cylinder (FIG. 2).
  • the sleeve 12 is pivoted upwards with the cylinder 8, the ellipsoid 2 being closed.
  • the vent hole 28 in the cylinder 8 now coincides with a hole 30 in the wall 6 leading to the outside (FIG. 3).
  • the electrode 16 can be pulled out with little effort, since the air air bores can flow in. There is no hermetically sealed room. The water wrung out with the electrode 16 remains in the closing cylinder. If a new electrode 16 is now introduced, however, the air can escape the ventilation bores 28, 30.
  • the device also has the advantage that it also works - as described - when the ellipsoid 2 assumes an oblique position.
  • the electrode can be changed in any position of the ellipsoid 2.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Surgical Instruments (AREA)

Abstract

A device for changing the electrodes in non-contact lithotripsy, having an electrode in a water-filled focusing ellipsoid, the electrode (16) being located in a pivoting mechanism whose wall seals the ellipsoid (2) during electrode replacement. <IMAGE>

Description

Die Erfindung betrifft eine Einrichtung für den Elektrodenwechsel bei der be­rührungsfreien Lithotripsie mit einer Elektrode in einem wassergefüllten fokus­sierenden Ellipsoid.The invention relates to a device for changing electrodes in contact-free lithotripsy with an electrode in a water-filled focusing ellipsoid.

Aus DE 32 10 919 A1 ist eine Vorrichtung zum Auswechseln einer Elektrode (Funkenstrecke) mit einer Elektrode und einem wassergefüllten fokussieren­den Ellipsoid bekannt, bei der die Abdichtung mit Schiebern vorgenommen wird.From DE 32 10 919 A1 a device for exchanging an electrode (spark gap) with an electrode and a water-filled focusing ellipsoid is known, in which the sealing is carried out with sliders.

Aufgabe der Erfindung ist es, eine Einrichtung zu schaffen, die nach Ablauf der Standzeit der Elektrode einen raschen Wechsel der Elektrode ermöglicht, ohne dass im Reflektor ein Wasserverlust auftritt.The object of the invention is to provide a device which allows the electrode to be changed quickly after the electrode has expired, without loss of water occurring in the reflector.

Diese Aufgabe wird durch den Gegenstand des Hauptanspruchs gelöst. Die Unteransprüche sind vorteilhafte Ausgestaltungen der Erfindung.This object is achieved by the subject matter of the main claim. The subclaims are advantageous embodiments of the invention.

Die Erfindung wird nachfolgend anhand von Figuren näher erläutert.The invention is explained in more detail below with reference to figures.

Es zeigen:

  • Fig. 1 ein Ellipsoid mit einer Elektrode in Behandlungsstellung,
  • Fig. 2 eine in die Wechseleinrichtung zurückgezogene Elektrode, und
  • Fig. 3 die Elektrode in Entnahmestellung.
Show it:
  • 1 shows an ellipsoid with an electrode in the treatment position,
  • Fig. 2 is a retracted electrode in the changing device, and
  • Fig. 3 shows the electrode in the removal position.

In den Figuren 1 bis 3 sind folgende Bauteile dargestellt:
Ein Rotationsellipsoid 2 ist mit einer Membran 4 verschlossen. Das Gehäuse 6 des Rotationsellipsoids 2 weist an einer Seite einen drehbaren Zylinder 8 auf, in dessen Bohrung 10 sich ein Teil einer Hülse 12 befindet. In der Bohrung 14 der Hülse 12 befindet sich eine Elektrode 16, deren Elektrodenspitzen 18 sich in Fig. 1 exakt positioniert im Fokus F1 des Rotationsellipsoids 2 befinden. Die Positionierung wird mittels eines mit dem Ellipsoid 2 starr verbundenen Auf­nahmeteils 20 mit Anschlag 22 sichergestellt. Die Elektrode 16 sitzt in der zy­lindrischen Aufnahme 20, welche mit Dichtungen 24 versehen ist, so dass das Ausdringen von Wasser aus dem Ellipsoid 2 nicht möglich ist. Der Teil 20 der Aufnahme sitzt fest im Ellipsoid 2. Der andere Teil der Hulse 12 mündet recht­winklig in den Zylinder 8 (wie ein Absperrventil), der drehbar gelagert ist. Zum Elektrodenwechsel wird diese, nachdem ein nicht gezeigter Hochspannungs­stecker abgezogen ist, soweit herausgezogen, dass der Korb 26 sich inner­halb des Zylinders 8 befindet. Das Wasser steht nun bis zur Dichtung 34 im Zylinder 8 und bis zur Dichtung 32 in der Hülse 12. Jetzt ist auch eine Entlüf­tungsbohrung 28 frei, die jedoch in dieser Stellung des Schliesszylinders keine Verbindung nach aussen hat (Fig. 2). Nun wird die Hülse 12 mit dem Zylinder 8 nach oben geschwenkt, wobei das Ellipsoid 2 verschlossen wird. Die Entlüftungsbohrung 28 im Zylinder 8 deckt sich nun mit einer in der Wand 6 vorhandenen nach aussen führenden Bohrung 30 (Fig. 3). Die Elektrode 16 kann ohne grossen Kraftaufwand herausgezogen werden, da über die Luf­ tungsbohrungen 28,30 Luft nachströmen kann. Es ist kein hermetisch ge­schlossener Raum vorhanden. Das mit der Elektrode 16 ausgedrungene Was­ser verbleibt im Schliesszyllnder.
Wird nun eine neue Elektrode 16 eingebracht, kann die Luft aber die Entlüf­tungsbohrungen 28,30 entweichen. Da das Wasser nun den Raum in der Elektrodenaufnahme bis zur Elektrode ausfüllt, ist ausgeschlossen, dass Luft in diesem Raum verbleibt. Nun kann die Hülse 12 wieder in die Stellung ge­mäß Fig. 2 geschwenkt werden. Durch die Drehung des Zylinders 8 wird die Entlüftungsbohtung 30 wieder verschlossen. Nun kann die Elektrode 16 ganz eingeschoben werden, wobei das Wasser wieder in das Ellipsoid 2 zurückge­drängt wird. Da bei diesem Vorgang keine Luft mit eingebracht wird, kann man auf das Entlüften nach jedem Elektrodenwechsel verzichten. Eine Entlüf­tung wird nur in grösseren Intervallen nötig werden.The following components are shown in FIGS. 1 to 3:
A rotational ellipsoid 2 is closed with a membrane 4. The housing 6 of the ellipsoid of revolution 2 has on one side a rotatable cylinder 8, in the bore 10 of which part of a sleeve 12 is located. In the bore 14 of the sleeve 12 there is an electrode 16, the electrode tips 18 of which are exactly positioned in FIG. 1 in the focus F1 of the ellipsoid of revolution 2. The positioning is ensured by means of a receiving part 20 with a stop 22 which is rigidly connected to the ellipsoid 2. The electrode 16 is seated in the cylindrical receptacle 20, which is provided with seals 24, so that water cannot escape from the ellipsoid 2. The part 20 of the receptacle is firmly seated in the ellipsoid 2. The other part of the sleeve 12 opens at right angles into the cylinder 8 (like a shut-off valve), which is rotatably mounted. To change the electrode, after a high-voltage plug (not shown) has been removed, it is pulled out to such an extent that the basket 26 is located within the cylinder 8. The water is now up to the seal 34 in the cylinder 8 and up to the seal 32 in the sleeve 12. Now there is also a vent hole 28 which, however, has no connection to the outside in this position of the locking cylinder (FIG. 2). Now the sleeve 12 is pivoted upwards with the cylinder 8, the ellipsoid 2 being closed. The vent hole 28 in the cylinder 8 now coincides with a hole 30 in the wall 6 leading to the outside (FIG. 3). The electrode 16 can be pulled out with little effort, since the air air bores can flow in. There is no hermetically sealed room. The water wrung out with the electrode 16 remains in the closing cylinder.
If a new electrode 16 is now introduced, however, the air can escape the ventilation bores 28, 30. Since the water now fills the space in the electrode holder up to the electrode, it is impossible for air to remain in this space. Now the sleeve 12 can be pivoted back into the position shown in FIG. 2. The vent hole 30 is closed again by the rotation of the cylinder 8. Now the electrode 16 can be pushed in completely, the water being pushed back into the ellipsoid 2. Since no air is introduced during this process, venting is not necessary after each electrode change. Venting will only be necessary at larger intervals.

Die Einrichtung hat darüberhinaus den Vorteil, dass sie auch dann - wie be­schrieben - arbeitet, wenn das Ellipsoid 2 eine schräge Lage einnimmt. Der Elektrodenwechsel ist in jeder Stellung des Ellipsoids 2 durchführbar.The device also has the advantage that it also works - as described - when the ellipsoid 2 assumes an oblique position. The electrode can be changed in any position of the ellipsoid 2.

Claims (4)

1. Einrichtung für den Elektrodenwechsel bei der berührungsfreien Litho­tripsie mit einer Elektrode in einem wassergefüllten fokussierenden Ellipsoid, gekennzeichnet durch einen um seine Achse drehbaren Zylinder (8), der eine Bohrung (10) zur Aufnahme der Elektrode (16) aufweist und beim Elektrodenwechsel in eine Stellung drehbar ist, in der die Wandung des Zylinders (8) das wassergefüllte Ellipsoid (2) abdichtet.1. Device for changing electrodes in contact-free lithotripsy with an electrode in a water-filled focusing ellipsoid, characterized by a cylinder (8) rotatable about its axis, which has a bore (10) for receiving the electrode (16) and when changing electrodes into a Rotatable position in which the wall of the cylinder (8) seals the water-filled ellipsoid (2). 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass in der Bohrung (10) des Zylinders (8) eine Hülse (12) zur Aufnahme und Führung der Elektrode (16) angeordnet ist.2. Device according to claim 1, characterized in that a sleeve (12) for receiving and guiding the electrode (16) is arranged in the bore (10) of the cylinder (8). 3. Einrichtung nach Ansprüchen 1 und 2, dadurch gekennzeichnet, dass zwischen dem fokussierenden Ellipsoid (2) und dem Zylinder (8) Dichtungen (24,34) angeordnet sind.3. Device according to claims 1 and 2, characterized in that between the focusing ellipsoid (2) and the cylinder (8) seals (24,34) are arranged. 4. Einrichtung nach Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass im Zylinder (8) mindestens eine Entlüftungsbohrung (28) vorhan­den ist.4. Device according to claims 1 to 3, characterized in that in the cylinder (8) at least one vent hole (28) is present.
EP90114233A 1989-09-29 1990-07-25 Device for changing the electrodes in a non-contact lithotripter Withdrawn EP0419791A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893932577 DE3932577C1 (en) 1989-09-29 1989-09-29
DE3932577 1989-09-29

Publications (1)

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EP0419791A1 true EP0419791A1 (en) 1991-04-03

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EP90114233A Withdrawn EP0419791A1 (en) 1989-09-29 1990-07-25 Device for changing the electrodes in a non-contact lithotripter

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EP (1) EP0419791A1 (en)
JP (1) JPH03151953A (en)
DE (1) DE3932577C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6217531B1 (en) 1997-10-24 2001-04-17 Its Medical Technologies & Services Gmbh Adjustable electrode and related method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4121848C1 (en) * 1991-07-02 1993-02-04 Dornier Medizintechnik Gmbh, 8000 Muenchen, De Drive for surgical lithotriptor - has swivelling electrode with geared lid to adopt alternative positions
DE102006002412A1 (en) * 2006-01-18 2007-07-19 Switech Medical Ag Shock waves generating device for medical therapy, has spark discharge section with two electrodes, where device is filled with fluid medium that includes colloidal suspension of conductive, semi-conductive or polarized substances in water
DE102006021049A1 (en) * 2006-05-05 2007-11-08 Siemens Ag Shock wave head for a shock wave treatment device and method for fragmentation and control of fragmentation of a fragmentation object located in an examination subject
CN106038214A (en) * 2016-05-10 2016-10-26 深圳市慧康医疗器械有限公司 Shock wave beauty therapy instrument

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0090138A2 (en) * 1982-03-25 1983-10-05 DORNIER SYSTEM GmbH Apparatus for the disintegration of concretions in living bodies
WO1989007222A1 (en) * 1988-02-03 1989-08-10 Albrecht Wuethrich Maschinen & Mechanik Ag Plug-in safety coupling, in particular for compressed air lines
US4934353A (en) * 1989-10-02 1990-06-19 Christopher Nowacki Lithotripter having rotatable valve for removal of electrode structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635635C3 (en) * 1976-08-07 1979-05-31 Dornier System Gmbh, 7990 Friedrichshafen Spark gap for generating shock waves for the contact-free destruction of calculus in the bodies of living beings
DE3536271A1 (en) * 1985-10-11 1987-04-16 Dornier Medizintechnik POSITIONING DEVICE FOR AN ELECTRODE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0090138A2 (en) * 1982-03-25 1983-10-05 DORNIER SYSTEM GmbH Apparatus for the disintegration of concretions in living bodies
WO1989007222A1 (en) * 1988-02-03 1989-08-10 Albrecht Wuethrich Maschinen & Mechanik Ag Plug-in safety coupling, in particular for compressed air lines
US4934353A (en) * 1989-10-02 1990-06-19 Christopher Nowacki Lithotripter having rotatable valve for removal of electrode structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6217531B1 (en) 1997-10-24 2001-04-17 Its Medical Technologies & Services Gmbh Adjustable electrode and related method

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Publication number Publication date
DE3932577C1 (en) 1990-11-22
JPH03151953A (en) 1991-06-28

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