[go: up one dir, main page]

EP3021317B1 - Dispositif de fabrication d'ondes de choc electrohydrauliques - Google Patents

Dispositif de fabrication d'ondes de choc electrohydrauliques Download PDF

Info

Publication number
EP3021317B1
EP3021317B1 EP15186264.6A EP15186264A EP3021317B1 EP 3021317 B1 EP3021317 B1 EP 3021317B1 EP 15186264 A EP15186264 A EP 15186264A EP 3021317 B1 EP3021317 B1 EP 3021317B1
Authority
EP
European Patent Office
Prior art keywords
electrode
shaft
tip
electrodes
electrode tip
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.)
Active
Application number
EP15186264.6A
Other languages
German (de)
English (en)
Other versions
EP3021317A1 (fr
EP3021317B8 (fr
Inventor
Werner Schwarze
Sebastian Kruse
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.)
Storz Medical Deutschland GmbH
Original Assignee
Jena Med Tech 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 Jena Med Tech GmbH filed Critical Jena Med Tech GmbH
Priority to EP15186264.6A priority Critical patent/EP3021317B8/fr
Publication of EP3021317A1 publication Critical patent/EP3021317A1/fr
Publication of EP3021317B1 publication Critical patent/EP3021317B1/fr
Application granted granted Critical
Publication of EP3021317B8 publication Critical patent/EP3021317B8/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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 generating acoustic shock waves by a sparkover between two electrodes.
  • the shock waves generated in this way for example, in human medicine or in veterinary medicine stones in body cavities smashed or regeneration and new formation of tissue can be stimulated.
  • the spark erosion resulting from repeated sparkover results in a burnup of the opposing electrode tip pair.
  • the life of the electrode tips is limited and ranges only one to a maximum of a few treatments. The entire electrode or the electrode tips must then be completely changed.
  • a coaxial structure with two superposed electrodes is in the US 5,420,473 disclosed.
  • a disadvantage of this arrangement is the large shading by the conical electrodes and the coaxial holder.
  • a lateral electrode arrangement is in DE 33 16 837 A1 disclosed. This leads to the breakthrough of the coaxial structure and structurally complicated solutions for example, the replacement of the electrode tips. Further, the non-coaxial electrode tips passed through the vertex impede wave propagation and can cause asymmetries in the sparking.
  • the US 4,610,249 discloses an apparatus and method for non-invasively shattering body calculi.
  • the device disclosed there has two opposing electrode tips.
  • the invention has for its object to provide a device for generating electro-hydraulic shock waves in such a way that a longer life of the electrodes can be achieved, the energy and preferably the focus point of an initial shock front remain largely constant during the lifetime. In addition, a higher shock wave energy to be achieved with the same power consumption.
  • a device for generating electro-hydraulic shock waves comprises a first electrode having a first electrode tip and a second electrode having a second electrode tip at a small distance from the first electrode tip.
  • electrode tip can be understood as the part of the electrode shaft from which flashovers can occur.
  • electrode tip can be understood as the part of the electrode shaft which burns off during the treatment process.
  • the first electrode tip of the first metallic electrode shaft is preferred and the second electrode tip of the second metallic electrode shaft is spaced near the focal zone.
  • the electrodes each have a preferably metallic electrode shaft, which in turn in each case has one of the already mentioned electrode tips.
  • a part of the first electrode shaft facing the first electrode tip and / or a part of the second electrode shaft facing the second electrode tip are straight or curved.
  • These straight or curved parts are preferably arranged in a volume around the focal zone, which is comparatively small in relation to the volume of the entire inner region of the reflector. This volume is preferably less than 20%, particularly preferably less than 10%, of the volume of the entire inner region.
  • the electrode shafts in the entire inner region of the reflector are straight. According to a further embodiment, both the part of the first electrode shaft facing the first electrode tip and the part of the second electrode shaft facing the second electrode tip are straight in an inner region of the reflector.
  • a part of the first electrode shaft facing the first electrode tip and / or a part of the second electrode shaft facing the second electrode tip are bent. If there is talk that a part of the electrode shaft facing the electrode tip is bent, this means that the part of the first electrode shaft facing the first electrode tip preferably lies in one plane and has at each point an, in particular constant, curvature in this plane ,
  • An initial shock front is generated by a sparkover between the electrode tips.
  • This flashover generates an expanding plasma bubble, which drives the shock wave on its surface and couples it into the surrounding aqueous medium.
  • the electrode tips are preferably arranged in or at the focus zone of the specially shaped, preferably ellipsoidal, reflector.
  • the shock waves generated by the flashover are focused or condensed by the reflector to a located outside of the reflector therapeutic volume.
  • the voltages required for sparkover from 1 to 40 kV are switched to the electrodes via capacitors with capacitances from 1 to 400 nF via a fast, low-resistance switch.
  • the part of the first electrode shaft facing the first electrode tip and the part of the second electrode shaft facing the second electrode tip are arranged at an angle between 20 ° and 140 °. Particularly preferred is the angular range between 30 ° and 90 °, and most preferably between 40 ° and 60 °.
  • the arrangement is symmetrical to a central axis or to a plane passing through the central axis. Wherein the central axis preferably represents the axis of rotation of an ellipsoidal reflector.
  • the tips of the electrodes are chamfered, so that the tip of the first electrode to the tip of the second electrode forms a surface, wherein the two electrode surfaces are preferably aligned parallel to each other and more preferably the central axis extends in the middle between the two electrode surfaces.
  • the expression according to which the part of the first electrode shaft facing the first electrode tip and the part of the second electrode shaft facing the second electrode tip are at an angle between 20 ° and 140 ° are arranged so as to understand that a first tangent of a first central axis of the first electrode tip facing portion of the first electrode shaft at the location where the first central axis leaves the first electrode tip, and a second tangent of a second central axis of the second electrode tip facing part of second electrode shaft at the location where the second center axis, the second electrode tip leaves, are arranged at an angle between 20 ° and 140 °.
  • the arrangement of the electrode tips the shading over the prior art can be significantly reduced, so that, as shown in the figures below, results in a significantly higher energy dissipation.
  • the electrodes each comprise a shaft with a conductive material, in particular a metal.
  • the electrode shaft consists of steel, tungsten, platinum, graphite, another metal or thermally resistant or impact-resistant alloys.
  • each shaft is preferably received in a holder made of preferably conductive material or metal.
  • the shaft preferably serves as electrical connection or plug connector.
  • At least one electrode tip has an electrode surface which is bevelled with respect to a longitudinal axis of the electrode shaft by an angle which preferably corresponds to half the angle between the two electrodes.
  • At least one electrode tip has an electrode surface opposite to a tangent of a center axis of the electrode tip portion of the electrode shaft at the location where the center axis is the electrode tip leaves at an angle which preferably corresponds to half the angle between the first tangent and the second tangent of the two electrodes.
  • the diameter of the electrode tip of one electrode is greater than the diameter of the electrode tip of the other electrode.
  • the electrodes it is preferable to arrange the electrodes so that the center of the electrodes or electrode surfaces are located within the focus zone of the reflector.
  • the center of the electrodes in the region of the focus zone on the central axis of the reflector can be held over a relatively long period or over a larger area of the electrode burnup.
  • the ellipsoidal reflector preferably has a vertex near the focus zone at the electrode tips.
  • the arrangement of the electrodes in the vicinity of the apex of the reflector an approximately central access and a corresponding compact design of the arrangement are possible.
  • the electrodes protrude laterally into the reflector, a substantially larger and more complicated design results from the electrodes projecting laterally outwards from the reflector.
  • insulated bushings are to be introduced at two opposite points of the reflector.
  • two components must be replaced at different locations on the reflector. According to the embodiments described above, only access to a central location of the reflector is necessary to replace the electrodes.
  • a reflector body 11 preferably has an ellipsoidal recess 12, which serves as a reflector on.
  • the reflector 12 has an inner region 14.
  • this reflector 12 has a focus zone 13, which preferably corresponds to the focal point of an ellipse which describes the reflector 12.
  • the reflector 12 has a central axis 15, which is particularly preferably the axis of rotation of a rotationally symmetrical reflector 12.
  • a first electrode 20 and a second electrode 30 are disposed in the vicinity of a focus zone 13 (corresponding to the area around the focal point of the ellipse) of the elliptical reflector 12.
  • the first electrode 20 has a first electrode tip 21 at the end of an electrode shaft 24 and preferably a first holder 22, which are preferably received in a first insulator 23 and connected to the reflector body 11.
  • the second electrode 30 has a second electrode tip 31 at the end of an electrode shaft 34 and preferably a second holder 32, which are preferably accommodated in a second insulator 33 and connected to the reflector body 11.
  • an angle 28 is preferably in a range of 20 ° to 140 °. Particularly preferred is the angular range between 30 ° and 90 °, and most preferably between 40 ° and 60 °.
  • the device described here can be supplied with high-voltage pulses which are generated, for example, by switching on a charged capacitor via a fast switch to the electrodes.
  • voltages in a typical range of 1 to 40 kilovolts can be applied to the electrodes.
  • FIG. 2 is a simplified embodiment of an apparatus for generating electro-hydraulic shock waves disclosed.
  • a first electrode 41 and a second electrode 42 are integrated in a common insulator 43 to a double electrode arrangement.
  • This insulator 43 is in turn received in the reflector body 11.
  • the first electrode 41 and second electrode 42 are supplied with high voltage.
  • FIG. 3 the electrodes 20 and 30 are each shown in detail as a single electrode. Show here FIGS. 3A and FIG. 3B the electrodes 20 and 30 respectively in detail for the case that the electrode tips facing the parts of the electrode shafts are straight. FIGS. 3C and 3D show the electrodes 20 and 30 respectively in detail for the case that the electrode tips facing the parts of the electrode shafts are bent or curved.
  • FIG. 3A shows the electrode 20 in detail, wherein the electrode tip facing parts of the electrode shaft is straight.
  • FIG. 3A shows that a preferred electrically conductive first holder 22 receives a preferably metallic first electrode shaft 24.
  • the first electrode shaft 24 has a first electrode tip 21, on which preferably a first electrode surface 25 is formed.
  • the first electrode shaft 24 is straight in this embodiment, but according to a further embodiment, only at one of the first electrode tip 21 facing part of the first electrode shaft 24 may be straight.
  • the electrode tip 21 is bevelled at an angle 29 with respect to a longitudinal axis 26 of the electrode shaft. This angle preferably corresponds to half the angle 28 between the first and second electrodes.
  • the holder 22 is preferably the electrical connection of the electrode and may be formed as a connector.
  • FIG. 3B shows the electrode 30 in detail, wherein the electrode tip facing parts of the electrode shaft is straight. It can be seen that a preferably electrically conductive second holder 32 receives a preferably metallic second electrode shaft 34.
  • This second electrode shaft 34 has a second electrode tip 31, on which preferably a second electrode surface 35 is formed.
  • the second electrode shaft 34 is straight in this embodiment, but according to a further embodiment may only be straight on a part of the second electrode shaft 34 facing the second electrode tip 31.
  • the second electrode tip 31 is bevelled at an angle 39 with respect to a longitudinal axis 36 of the second electrode shaft 34. This angle preferably corresponds to half the angle 28 between the first and second electrodes.
  • the second holder 32 is preferably used for the electrical connection of the electrode and may be formed as a connector.
  • FIG. 3C shows the electrode 20 in detail, wherein the tip of the electrode facing the electrode shaft is bent.
  • FIG. 3C shows that a preferably electrically conductive first holder 22 receives a preferably metallic first electrode shaft 24.
  • the first electrode shaft 24 has a first electrode tip 21, on which preferably a first electrode surface 25 is formed.
  • the electrode tip 21 is in FIG. 3C shown enlarged.
  • the first electrode shaft 24 is bent on a part 101 of the first electrode shaft 24 facing the first electrode tip 21. In the part 101, a first center axis 100 runs in the middle.
  • the tip 21 is in Fig. 3C located.
  • the tip 21 is defined as follows. Take the point of the first electrode surface 25 whose vertical projection on the first central axis 100 on the first central axis 100 is located farthest in the direction of the first holder 22. Through this point, a plane is laid perpendicular to the first central axis 100. Beyond this plane, in the direction of the electrode surface 25, the tip 21 of the first electrode shaft 24 lies.
  • first tangent 27 corresponds to the longitudinal axis 26 of the electrode 20 of the FIG. 3A .
  • the electrode tip 21 is bevelled at an angle 29 with respect to the first tangent 27 of the electrode shaft 24. This angle preferably corresponds to half the angle 28 between the first tangent 27 of the first electrode shaft 24 and the second tangent 37 of the second electrode shaft 34.
  • the holder 22 preferably serves for electrical connection of the electrode and can be designed as a plug connector.
  • Figure 3D shows the electrode 30 in detail, wherein the electrode tip of the facing parts of the electrode shaft is bent.
  • Figure 3D shows that a preferred electrically conductive second holder 32 receives a preferably metallic second electrode shaft 34.
  • the second electrode shaft 34 has a second electrode tip 31, on which preferably a second electrode surface 35 is formed.
  • the electrode tip 31 is in Figure 3D not shown enlarged, but corresponds to a symmetrical reflection and replacement of the reference numerals exactly the magnification FIG. 3C ,
  • the second electrode shaft 34 is bent on a part 111 of the second electrode shaft 34 facing the second electrode tip 31.
  • a second central axis 110 runs in the middle.
  • the tip 31 is in Fig. 3D located.
  • the tip 31 is defined as follows. Take the point of the second electrode surface 35, the perpendicular projection of which lies on the second central axis 110 on the second central axis 110 furthest in the direction of the second holder 32. Through this point, a plane is laid perpendicular to the second central axis 110. Beyond this plane, in the direction of the electrode surface 35, the tip 31 of the second electrode shaft 34 lies.
  • the tangent 37 of the electrode 30 of Figure 3D corresponds to the longitudinal axis 36 of the electrode 30 of Figure 3B.
  • the electrode tip 31 is bevelled at an angle 39 with respect to the second tangent 37 of the electrode shaft 34. This angle preferably corresponds to half the angle 28 between the first tangent 27 of the first electrode shaft 24 and the second tangent 37 of the second electrode shaft 34.
  • the holder 32 preferably serves for the electrical connection of the electrode and can be designed as a plug connector.
  • the electrodes 20 and 30 of the FIGS. 3C and 3D are arranged in the reflector body 11 that the electrode surfaces 25 and 35 as well as the electrodes 20 and 30 of the FIGS. 3A and 3B facing, such as in the FIGS. 1 . 2 . 4, 5 . 7 to see.
  • FIG. 4 a section is shown with the electrode tips.
  • the electrodes are here in a new state, that is, shown unworn.
  • the center of the electrode tips lies in a first plane 51.
  • Increasing wear causes the electrode tips to shorten so that, at a later time, the middle between the electrode tips lies, for example, in a second plane 52.
  • FIG. 5 a further detail enlargement of the electrode tips is shown.
  • a first electrode surface 25 of the first electrode tip 21 faces a second electrode surface 35 of the second electrode tip 31.
  • Various defects in the electrode surface caused by erosion are outlined here.
  • an arc is generated between the electrode tips arranged at a distance 71 by means of a high-voltage discharge. This arc seeks the path between the electrode tips that has the shortest distance. Therefore, with new electrode tips, the arc will first begin to burn at a location with unevenness of the material (which may also be microscopic). Due to the high energy input, a melting of the electrode surface and a concomitant material removal occur. This leads to an at least slight defect in the electrode surface.
  • a first defect 61 can arise.
  • the defects are shown here only schematically and greatly enlarged.
  • a second defect 62 and the third arc a third defect 63 can now arise.
  • the defects add up so that the electrode surface is removed. This shortens the length of the electrode tips.
  • a greater distance 72 arises between the electrode tips.
  • the middle shifts between the surfaces of the Electrode tips towards the edge of the reflector.
  • the length of the electrode tips in the new installation state is preferably selected such that the center of the electrode surfaces is outside the focus zone of the reflector and over time and therefore with increasing erosion of the electrode tip in its focus zone migrates.
  • the same diameter of the electrodes results in a higher amount of material which can be removed before the electrode spacing reaches a value at which the ignition of an arc is no longer possible , This further increases the life of the electrode assembly.
  • FIG. 6 is the shadowing by the electrode assembly with an upper electrode 91 and a lower electrode 92 and the electrode holder of a device 90 according to the prior art, as shown for example in US Pat US 5,420,473 is disclosed.
  • a relatively narrow emission area 93 results.
  • FIG. 7 is the shading in a preferred embodiment, for example according to the FIG. 1 shown. There are no large shading areas here. Therefore, in a first emission region 75 (downward angular region), which is directed downward toward the apex of the reflector, and in a second emission region 76 (upward-oriented angular region) energy can be radiated. Since it is the shockwaves generated is spherically propagating waves, the energy density per solid angle is constant. Thus, the solid angle 75 corresponds approximately to the realizable from the prior art solid angle 93. It is obvious that here, taking into account the Abstrahl Schemee 75 and 76 at the same power consumption a much higher energy can be radiated. If only a similarly high shock wave energy as required in the prior art, the arrangement can be operated with lower power, which in turn causes a significant increase in the life.
  • FIG. 8 is the arrangement off FIG. 7 shown from a view which is rotated 90 ° about the central axis 15. It can be clearly seen here that virtually no shading takes place in this view, since the electrodes used have no lateral extent.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Disintegrating Or Milling (AREA)

Claims (15)

  1. Dispositif (10) pour générer des ondes de choc électrohydrauliques, comprenant un réflecteur (12) avec une zone de foyer (13) et avec une première électrode (20) et une deuxième électrode (30),
    dans lequel la première électrode (20) présente un premier corps d'électrode métallique (24) avec une première pointe d'électrode (21) à une extrémité du premier corps d'électrode (24) et
    la deuxième électrode (30) présente un deuxième corps d'électrode métallique (34) avec une deuxième pointe d'électrode (31) à une extrémité du deuxième corps d'électrode (34),
    dans lequel la première pointe d'électrode (21) du premier corps d'électrode métallique (24) et la deuxième pointe d'électrode (31) du deuxième corps d'électrode métallique (34) sont disposées à distance l'une de l'autre à proximité de la zone de foyer (13),
    et dans lequel aussi bien une partie du premier corps d'électrode (24) tournée vers la première pointe d'électrode (21) qu'une partie du deuxième corps d'électrode (34) tournée vers la deuxième pointe d'électrode (31) sont droites ou courbées,
    caractérisé en ce que la partie du premier corps d'électrode (24) tournée vers la première pointe d'électrode (21) et la partie du deuxième corps d'électrode (34) tournée vers la deuxième pointe d'électrode (31) sont disposées selon un angle (28) compris entre 20° et 140°.
  2. Dispositif selon la revendication 1, caractérisé en ce que la partie du premier corps d'électrode (24) tournée vers la première pointe d'électrode (21) aussi bien que la partie du deuxième corps d'électrode (34) tournée vers la deuxième pointe d'électrode (31) sont droites dans une zone intérieure (14) du réflecteur.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'au moins une des électrodes (20, 30) présente au moins une pointe d'électrode (21, 31) qui est biseautée par rapport au corps d'électrode (24, 34) sous un certain angle (29).
  4. Dispositif selon la revendication 3, caractérisé en ce que l'angle (29) du biseau correspond à la moitié de l'angle (28) entre le premier corps d'électrode et le deuxième corps d'électrode.
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la première électrode (20) présente une première surface d'électrode (25) disposée parallèlement à une deuxième surface d'électrode (35) de la deuxième électrode (30).
  6. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'au moins une des électrodes (20, 30, 41, 42) est retenue par du matériau isolant électrique (23, 33, 43) dans un corps de réflecteur (11).
  7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la première électrode (20) et la deuxième électrode (30) comportent chacune des porte-électrodes (22, 32) séparés.
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que deux électrodes (41, 42) sont logées dans un corps commun en matériau isolant électrique (43).
  9. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la pointe d'électrode (21) de la première électrode (20) a un plus grand diamètre que la pointe d'électrode (31) de la deuxième électrode (30).
  10. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le milieu de la première pointe d'électrode (21) et le milieu de la deuxième pointe d'électrode (31) se trouvent en dehors de la zone de foyer (13) et le milieu des électrodes (20, 30) se rapproche de la zone de foyer (13) quand l'usure des électrodes (20, 30) progresse.
  11. Disposition d'électrodes composée d'une première électrode (20) et d'une deuxième électrode (30) pour un dispositif pour générer des ondes de choc électrohydrauliques, comprenant chacune un corps d'électrode (24, 34) et une pointe d'électrode (21, 31) avec une surface d'électrode (25, 35), laquelle surface d'électrode (25, 35) est biseautée par rapport à un axe longitudinal (26) du corps d'électrode (24, 34) selon un certain angle (29, 39), caractérisée en ce que la première surface d'électrode (25) de la première électrode (20) est disposée parallèlement à la deuxième surface d'électrode (35) de la deuxième électrode (30).
  12. Disposition d'électrodes selon la revendication 11, caractérisée en ce qu'au moins un corps d'électrode (24, 34) est logé dans un support (22, 32).
  13. Disposition d'électrodes selon la revendication 12, caractérisée en ce qu'au moins un support (22, 32) comprend un matériau conducteur électrique.
  14. Disposition d'électrodes selon l'une des revendications 11 à 13, caractérisée en ce que la partie du corps d'électrode (24, 34) tournée vers la pointe d'électrode (21, 31) correspondante est droite ou courbée.
  15. Disposition d'électrodes selon l'une des revendications 11 à 14, caractérisé en ce que le corps d'électrode (24, 34) est droit.
EP15186264.6A 2014-11-11 2015-09-22 Dispositif de fabrication d'ondes de choc electrohydrauliques Active EP3021317B8 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15186264.6A EP3021317B8 (fr) 2014-11-11 2015-09-22 Dispositif de fabrication d'ondes de choc electrohydrauliques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14192691 2014-11-11
EP15186264.6A EP3021317B8 (fr) 2014-11-11 2015-09-22 Dispositif de fabrication d'ondes de choc electrohydrauliques

Publications (3)

Publication Number Publication Date
EP3021317A1 EP3021317A1 (fr) 2016-05-18
EP3021317B1 true EP3021317B1 (fr) 2018-01-17
EP3021317B8 EP3021317B8 (fr) 2018-04-04

Family

ID=51951594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15186264.6A Active EP3021317B8 (fr) 2014-11-11 2015-09-22 Dispositif de fabrication d'ondes de choc electrohydrauliques

Country Status (1)

Country Link
EP (1) EP3021317B8 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106455279B (zh) * 2016-08-30 2023-04-14 核工业西南物理研究院 一种在实验室中产生球形闪电的装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191004967A (en) * 1909-03-05 1910-06-23 Siemens Ag Improvements in Sub-aqueous Sound Producers.
US2559227A (en) 1947-05-24 1951-07-03 Interval Instr Inc Shock wave generator
DE2407112C3 (de) * 1974-02-15 1979-04-26 Proektno-Konstruktorskoe Bjuro Elektrogidravliki Akademii Nauk Ukrainskoj Ssr, Nikolaew (Sowjetunion) Vorrichtung zur Erzeugung von Druckstößen in einem flüssigen Medium
DE2635635C3 (de) 1976-08-07 1979-05-31 Dornier System Gmbh, 7990 Friedrichshafen Funkenstrecke zur Erzeugung von Stoßwellen für die berührungsfreie Zerstörung von Konkrementen in Körpern von Lebewesen
DE2718847C3 (de) 1977-04-28 1979-10-11 Eberhard Prof. Dr.Rer.Nat. 6600 Saarbruecken Haeusler Vorrichtung zur Zertrümmerung von Nierensteinen mittels einer oder mehreren Stoßwellen
DE3316837C2 (de) 1983-05-07 1986-06-26 Dornier System Gmbh, 7990 Friedrichshafen Einrichtung zur Erzeugung von Stoßwellen mittels einer Funkenstrecke für die berührungsfreie Zertrümmerung von Konkrementen in Körpern von Lebewesen
US4610249A (en) 1984-05-08 1986-09-09 The Johns Hopkins University Means and method for the noninvasive fragmentation of body concretions
DE4306460C2 (de) 1993-03-02 1995-04-20 Siemens Ag Therapieeinrichtung zur Behandlung mit fokussierten akustischen Wellen
US5420473A (en) 1993-10-12 1995-05-30 Thomas; Howard C. Spark gap electrode assembly for lithotripters

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3021317A1 (fr) 2016-05-18
EP3021317B8 (fr) 2018-04-04

Similar Documents

Publication Publication Date Title
EP0124686B1 (fr) Dispositif générateur d'ondes de choc pour la destruction à distance des concrétions dans le corps vivant
EP0781447B1 (fr) Dispositif de production d'ondes de choc pour therapie medicale, en particulier pour la lithotriptie electro-hydraulique
EP0140005B1 (fr) Appareil pour produire un plasma avec un rayonnement plus intense dans la region des rayons X
DE2635635C3 (de) Funkenstrecke zur Erzeugung von Stoßwellen für die berührungsfreie Zerstörung von Konkrementen in Körpern von Lebewesen
DE3622352C1 (de) Funkenstrecke mit Elektrodenspitzen unterschiedlicher Geometrie
DE102008018827B4 (de) Vorrichtung zur Erzeugung eines Atmosphärendruck-Plasmas
CH656400A5 (de) Plasmalichtbogeneinrichtung zum auftragen von ueberzuegen.
DE202006014285U1 (de) Sonde zur Erzeugung einer elektrohydraulischen Druckwelle zum Einwirken auf ein Objekt
EP2136925A1 (fr) Récipient d'échantillons et dispositif de fragmentation électrodynamique d'échantillons
DE4020770C3 (de) Verfahren und Vorrichtung zur erheblichen Verbesserung der Reproduzierbarkeit und Wirksamkeit der bei der elektrischen Entladung einer Kapazität zwischen zwei Elektroden erzeugten Druckwellen durch Zwischenfügung einer elektrisch leitenden Flüssigkeit zwischen die Elektroden, und Verwendung der Vorrichtung unter Anwendung eines solchen Verfahrens, insbesondere für die hydraulische Lithotripsie
DE2113334C2 (de) Elektrodenanordnung für eine Gaslaser-Entladungsröhre
EP3021317B1 (fr) Dispositif de fabrication d'ondes de choc electrohydrauliques
EP2564479B1 (fr) Eclateur
DE69119093T2 (de) Verfahren und vorrichtung zum einfügen einer elektrisch leitenden flüssigkeit zwischen elektroden in einem stosswellengerät
DE10331510B4 (de) Kurzbogen-Entladungslampe sowie Lichtquellenvorrichtung
DE102017105546A1 (de) Steckdose zur Aufnahme eines Steckers eines Hochspannungskabels für eine Mikrofokus-Röntgenröhre, Steckverbindung für ein Hochspannungskabel
DE10130639A1 (de) Verfahren und Vorrichtung zum Erzeugen von Stoßwellen für medizinische Anwendungen
WO2015082177A1 (fr) Élément goujon et procédé de soudage permettant de relier cet élément goujon à une pièce
DE1254896B (de) Einrichtung zur Erzeugung kurzzeitiger hydraulischer Druckstoesse hoher Energie
EP2839556A1 (fr) Éclateur comprenant un accumulateur d'énergie capacitif
DE102007004430B4 (de) Vakuumschalter
DE3588073T2 (de) Vorrichtung zum Initiieren von Verbrennung in einer Brennkraftmaschine
DE202009012955U1 (de) Elektrohydraulische Elektrode
DE10342534B4 (de) Vorrichtung zum Verdichten und/oder Verschweißen von elektrischen Leitern
DE102016006608A1 (de) Chirurgische Vaporisationselektrode

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150922

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20170221

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

INTC Intention to grant announced (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20170906

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 964921

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015002866

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502015002866

Country of ref document: DE

Owner name: STORZ MEDICAL DEUTSCHLAND GMBH, DE

Free format text: FORMER OWNER: JENA MED TECH GMBH, 07745 JENA, DE

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: STORZ MEDICAL DEUTSCHLAND GMBH

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180117

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180417

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180517

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180417

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015002866

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

26N No opposition filed

Effective date: 20181018

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180930

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180922

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180922

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150922

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180117

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190922

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190922

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 964921

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200922

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200922

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20220920

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20220930

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230929

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20231001

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230922

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230922

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502015002866

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20250401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240930