EP0226047A2 - Electrode immergée pour la lithotripsy sans contact - Google Patents
Electrode immergée pour la lithotripsy sans contact Download PDFInfo
- Publication number
- EP0226047A2 EP0226047A2 EP86115769A EP86115769A EP0226047A2 EP 0226047 A2 EP0226047 A2 EP 0226047A2 EP 86115769 A EP86115769 A EP 86115769A EP 86115769 A EP86115769 A EP 86115769A EP 0226047 A2 EP0226047 A2 EP 0226047A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrode
- underwater
- sleeve
- lithotripsy
- ring
- 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
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
- Concretions in the human body can be crushed into non-contact fragments using mechanical shock waves.
- the generation of shock waves by underwater spark discharge has proven itself, the spark gap being at the focal point of a water-filled, rotationally elliptical focusing chamber and electrical energy stored in a capacitor being converted into shock wave energy by spark discharge.
- Electrodes that can be used for this type of shock wave generation are known from DE-PS 2635 635.
- the electrode shown in this patent in FIG. 4 has proven itself in practice.
- a tubular outer conductor merges into a yoke or a cage, at the end of which an electrode tip is fastened, which is axially opposite the other electrode tip connected to the inner conductor.
- the coaxial structure of the electrodes necessitates a continuous transition area of field lines, which, starting from the inner conductor, end on the outer conductor, the outer conductor basket and the outer conductor tip.
- the spark jump should take place along the electrode axis if possible because of the image by the ellipsoid. This is no longer guaranteed in every case with advanced electrode erosion.
- the object of the invention is to increase the period of use of underwater electrodes for non-contact lithotripsy.
- a sleeve or diaphragm made of dielectric material is arranged on at least one electrode tip.
- the service life of an electrode can be extended considerably. Tests have shown that the lifespan can triple.
- the spark jump is advantageously forced onto the axis of the electrode, with the result that the local representation of the spark scatters less strongly around the upper focus point.
- the electrode shows an underwater electrode 2 for the generation of shock waves in contactless lithotripsy.
- the electrode consists of an inner conductor 4 with an electrode tip 6, insulation 8, an outer conductor 10 and a mounting sleeve 12.
- the electrode is fastened in an electrode holder (not shown) by means of the mounting sleeve 12, the inner conductor 4 and the outer conductor 10 being connected to the electrical system (not shown) at the same time.
- a cage 14 is fastened to the outer conductor 10 and consists of a plurality of wires 15 and carries the second electrode tip 16.
- Protective tubes 18 made of plastic are partially drawn over the wires 15.
- Inner conductor 4 and outer conductor 10 consist of metallic materials.
- the electrode tips 6, 16 consist of tungsten, tantalum or other erosion-resistant materials or alloys.
- Insulation 8 and mounting sleeve 12 are made of plastic.
- a sleeve 20 is shrunk onto the electrode tip 6.
- FIG. 2 shows a dielectric sleeve 26 which is located on the electrode tip 16.
- the geometry and wall thickness of the electrode sleeves 20 and 26 are designed in such a way that the field lines run optimally.
- the end faces 28, 30 of the sleeves 20, 26 can be designed to be convex or concave, as can be seen in FIG. 3.
- the sleeves are shrunk onto the electrode tips 6, 16.
- FIG. 4 shows a dielectric ring 32 with a bore 34, which is fastened to the cage 14.
- the cross section of the ring is lenticular.
- Other designs and attachments of the ring 32 are also conceivable within the scope of the invention.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Surgical Instruments (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Plasma Technology (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3543881 | 1985-12-12 | ||
DE3543881A DE3543881C1 (de) | 1985-12-12 | 1985-12-12 | Unterwasser-Elektrode fuer die beruehrungsfreie Lithotripsie |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0226047A2 true EP0226047A2 (fr) | 1987-06-24 |
EP0226047A3 EP0226047A3 (en) | 1988-09-14 |
EP0226047B1 EP0226047B1 (fr) | 1992-08-26 |
Family
ID=6288247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86115769A Expired - Lifetime EP0226047B1 (fr) | 1985-12-12 | 1986-11-13 | Electrode immergée pour la lithotripsy sans contact |
Country Status (5)
Country | Link |
---|---|
US (1) | US4809682A (fr) |
EP (1) | EP0226047B1 (fr) |
JP (1) | JPS62144647A (fr) |
DE (1) | DE3543881C1 (fr) |
ES (1) | ES2034954T3 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2693306A1 (fr) * | 1992-07-02 | 1994-01-07 | Technomed Int Sa | Electrode de décharge électrique à bague mobile, dispositif de décharge, dispositif générateur d'ondes de pression et appareil de traitement en comportant application. |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3713884A1 (de) * | 1987-04-25 | 1988-11-03 | Dornier System Gmbh | Verbindung einer metallhuelse mit einer in ihrer bohrung befindlichen kunststoffhuelse |
CU22021A1 (es) * | 1987-04-28 | 1992-06-05 | Mini Salud Publ | Electrodo para destruccion de calculos renales |
DE3804993C1 (fr) * | 1988-02-18 | 1989-08-10 | Dornier Medizintechnik Gmbh, 8034 Germering, De | |
SE465552B (sv) * | 1989-03-21 | 1991-09-30 | Hans Wiksell | Anordning foer soenderdelning av konkrement i kroppen paa en patient |
DE4016054A1 (de) * | 1990-05-18 | 1991-11-21 | Dornier Medizintechnik | Funkenstrecke fuer die lithotripsie |
EP0590177B1 (fr) * | 1992-09-28 | 1996-12-18 | Hmt High Medical Technologies Entwicklungs- Und Vertriebs Ag | Dispositif générateur d'ondes de choc pour la destruction à distance des concrétions dans le corps vivant |
US5420473A (en) * | 1993-10-12 | 1995-05-30 | Thomas; Howard C. | Spark gap electrode assembly for lithotripters |
US7189209B1 (en) | 1996-03-29 | 2007-03-13 | Sanuwave, Inc. | Method for using acoustic shock waves in the treatment of a diabetic foot ulcer or a pressure sore |
US6390995B1 (en) | 1997-02-12 | 2002-05-21 | Healthtronics Surgical Services, Inc. | Method for using acoustic shock waves in the treatment of medical conditions |
DE19718512C1 (de) * | 1997-05-02 | 1998-06-25 | Hmt Ag | Verfahren und Vorrichtung zum Erzeugen von Stoßwellen für medizinische Anwendungen |
CZ297145B6 (cs) | 1997-10-24 | 2006-09-13 | Medipool Treuhand- Und Beteiligungsgesellschaft Für Medizintechnik Gmbh | Zpusob prizpusobení vzdálenosti elektrod jiskriste v elektrohydraulických systémech s rázovou vlnou |
CN100342828C (zh) * | 2005-09-22 | 2007-10-17 | 何申戌 | 液电冲击体外碎石用电极的最终表面处理方法 |
US9072534B2 (en) * | 2008-06-13 | 2015-07-07 | Shockwave Medical, Inc. | Non-cavitation shockwave balloon catheter system |
US10702293B2 (en) | 2008-06-13 | 2020-07-07 | Shockwave Medical, Inc. | Two-stage method for treating calcified lesions within the wall of a blood vessel |
ES2671898T3 (es) | 2008-06-13 | 2018-06-11 | Shockwave Medical, Inc. | Sistema de catéter con globo de ondas de choque |
US9180280B2 (en) | 2008-11-04 | 2015-11-10 | Shockwave Medical, Inc. | Drug delivery shockwave balloon catheter system |
US9044618B2 (en) | 2008-11-05 | 2015-06-02 | Shockwave Medical, Inc. | Shockwave valvuloplasty catheter system |
US8574247B2 (en) | 2011-11-08 | 2013-11-05 | Shockwave Medical, Inc. | Shock wave valvuloplasty device with moveable shock wave generator |
US9642673B2 (en) | 2012-06-27 | 2017-05-09 | Shockwave Medical, Inc. | Shock wave balloon catheter with multiple shock wave sources |
WO2014025397A1 (fr) | 2012-08-06 | 2014-02-13 | Shockwave Medical, Inc. | Electrodes à profil bas pour cathéter à onde de choc d'angioplastie |
EP2879597B1 (fr) | 2012-08-06 | 2016-09-21 | Shockwave Medical, Inc. | Cathéter à onde de choc |
CA2881211A1 (fr) | 2012-08-08 | 2014-02-13 | Shockwave Medical, Inc. | Valvuloplastie a ondes de choc ayant de multiples ballonnets |
US9138249B2 (en) | 2012-08-17 | 2015-09-22 | Shockwave Medical, Inc. | Shock wave catheter system with arc preconditioning |
US9522012B2 (en) | 2012-09-13 | 2016-12-20 | Shockwave Medical, Inc. | Shockwave catheter system with energy control |
US9333000B2 (en) | 2012-09-13 | 2016-05-10 | Shockwave Medical, Inc. | Shockwave catheter system with energy control |
CN103198825B (zh) * | 2013-02-21 | 2015-10-28 | 西北工业大学 | 水下等离子体声源的放电电极 |
US9140069B2 (en) | 2013-11-22 | 2015-09-22 | Thru Tubing Solutions, Inc. | Downhole force generating tool |
US9730715B2 (en) | 2014-05-08 | 2017-08-15 | Shockwave Medical, Inc. | Shock wave guide wire |
WO2017087195A1 (fr) | 2015-11-18 | 2017-05-26 | Shockwave Medical, Inc. | Électrodes d'onde de choc |
CN105654938B (zh) * | 2016-01-26 | 2019-12-24 | 云南科威液态金属谷研发有限公司 | 液态金属等离子体电声转换装置 |
US10226265B2 (en) | 2016-04-25 | 2019-03-12 | Shockwave Medical, Inc. | Shock wave device with polarity switching |
JP6993409B2 (ja) | 2016-10-06 | 2022-01-13 | ショックウェーブ メディカル, インコーポレイテッド | 衝撃波アプリケータを用いた大動脈尖弁の修復 |
US10357264B2 (en) | 2016-12-06 | 2019-07-23 | Shockwave Medical, Inc. | Shock wave balloon catheter with insertable electrodes |
US10441300B2 (en) | 2017-04-19 | 2019-10-15 | Shockwave Medical, Inc. | Drug delivery shock wave balloon catheter system |
US11020135B1 (en) | 2017-04-25 | 2021-06-01 | Shockwave Medical, Inc. | Shock wave device for treating vascular plaques |
JP2018200747A (ja) * | 2017-05-25 | 2018-12-20 | 株式会社融合技術開発センター | パルスパワー発生装置 |
US10966737B2 (en) | 2017-06-19 | 2021-04-06 | Shockwave Medical, Inc. | Device and method for generating forward directed shock waves |
US10709462B2 (en) | 2017-11-17 | 2020-07-14 | Shockwave Medical, Inc. | Low profile electrodes for a shock wave catheter |
AU2019290401A1 (en) | 2018-06-21 | 2021-01-07 | Shockwave Medical, Inc. | System for treating occlusions in body lumens |
JP2022548781A (ja) | 2019-09-24 | 2022-11-21 | ショックウェーブ メディカル, インコーポレイテッド | 身体管腔内の血栓を治療するためのシステム |
US11992232B2 (en) | 2020-10-27 | 2024-05-28 | Shockwave Medical, Inc. | System for treating thrombus in body lumens |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3566648A (en) * | 1968-09-25 | 1971-03-02 | Continental Can Co | Pulsed liquid wire-electrohydraulic system |
DE2635635A1 (de) * | 1976-08-07 | 1978-02-09 | Dornier System Gmbh | Funkenstrecke zur zerstoerung von konkrementen in koerpern von lebewesen |
EP0250791A1 (fr) * | 1986-07-03 | 1988-01-07 | Dornier Gmbh | Eclateur muni de pointes d'électrode ayant une géométrie différente |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2559227A (en) * | 1947-05-24 | 1951-07-03 | Interval Instr Inc | Shock wave generator |
US3286226A (en) * | 1965-01-18 | 1966-11-15 | Edgerton Germeshausen & Grier | Underwater spark discharge sound-producing system |
US3347336A (en) * | 1965-06-29 | 1967-10-17 | Shell Oil Co | Seismic wave generator |
US3416128A (en) * | 1966-10-14 | 1968-12-10 | Gen Electric | Electrode for electrohydraulic systems |
AT309663B (de) * | 1971-05-14 | 1973-08-27 | Phil Heinz Schmidt Kloiber Dr | Einrichtung zum Zerstören von Steinen in der Harnblase, im Harnleiter, in der Niere u. dgl. |
-
1985
- 1985-12-12 DE DE3543881A patent/DE3543881C1/de not_active Expired
-
1986
- 1986-11-13 EP EP86115769A patent/EP0226047B1/fr not_active Expired - Lifetime
- 1986-11-13 ES ES198686115769T patent/ES2034954T3/es not_active Expired - Lifetime
- 1986-12-10 US US06/940,023 patent/US4809682A/en not_active Expired - Fee Related
- 1986-12-11 JP JP61295694A patent/JPS62144647A/ja active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3566648A (en) * | 1968-09-25 | 1971-03-02 | Continental Can Co | Pulsed liquid wire-electrohydraulic system |
DE2635635A1 (de) * | 1976-08-07 | 1978-02-09 | Dornier System Gmbh | Funkenstrecke zur zerstoerung von konkrementen in koerpern von lebewesen |
EP0250791A1 (fr) * | 1986-07-03 | 1988-01-07 | Dornier Gmbh | Eclateur muni de pointes d'électrode ayant une géométrie différente |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2693306A1 (fr) * | 1992-07-02 | 1994-01-07 | Technomed Int Sa | Electrode de décharge électrique à bague mobile, dispositif de décharge, dispositif générateur d'ondes de pression et appareil de traitement en comportant application. |
WO1994001859A1 (fr) * | 1992-07-02 | 1994-01-20 | Technomed International | Electrode de decharge electrique a bague mobile |
Also Published As
Publication number | Publication date |
---|---|
EP0226047A3 (en) | 1988-09-14 |
US4809682A (en) | 1989-03-07 |
ES2034954T3 (es) | 1993-04-16 |
JPH0584168B2 (fr) | 1993-12-01 |
EP0226047B1 (fr) | 1992-08-26 |
DE3543881C1 (de) | 1987-03-26 |
JPS62144647A (ja) | 1987-06-27 |
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