EP0298334B1 - Stosswellenquelle - Google Patents
Stosswellenquelle Download PDFInfo
- Publication number
- EP0298334B1 EP0298334B1 EP88110225A EP88110225A EP0298334B1 EP 0298334 B1 EP0298334 B1 EP 0298334B1 EP 88110225 A EP88110225 A EP 88110225A EP 88110225 A EP88110225 A EP 88110225A EP 0298334 B1 EP0298334 B1 EP 0298334B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shock wave
- membrane
- wave source
- source according
- shock
- 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
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
- 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
-
- 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
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/32—Sound-focusing or directing, e.g. scanning characterised by the shape of the source
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 the other end of which is a membrane with an electrically conductive material which, separated by an insulating material layer, opposite a surface coil which is connected to a supply unit for generating high-voltage pulses.
- shock wave source of this kind, e.g. EP-A-0 209 053 focused shock waves can be generated which are directed to the concrement to be broken, e.g. a kidney stone, can be straightened and smashed it so far that it comes off naturally.
- the shock wave is generated by the fact that a high-voltage capacitor is connected across the surface coil, e.g. can have a spiral winding, is discharged, repelling the membrane and directing a shock wave over the liquid and possibly an acoustic lens in the shock wave tube to the stone to be broken.
- the invention has for its object to design the membrane in a shock wave source of the type mentioned so that a favorable shock wave course is achieved.
- the membrane has a flexible base which is covered by a plurality of plates made of electrically conductive material.
- each of the plates provided on the membrane is repelled.
- the propagation of the shock wave is much faster in the edge area of the membrane compared to a homogeneous membrane.
- An optimal shock wave course can be achieved if the platelets have different mass inertia and / or electrical conductivity.
- the desired shock wave course can be achieved by a suitable choice of the inertia and / or conductivity.
- the membrane can be flat, but also curved. Suitable curvature can be used to focus the shock waves without an acoustic lens.
- the shock wave source according to FIGS. 1 and 2 has a shock wave tube 1, which is closed on its application side by an elastic bag 2 that can be placed on a patient and on its opposite side by a membrane 3.
- the space between components 1, 2, 3 is filled with water as the coupling medium.
- An acoustic lens 4 for focusing the generated shock waves is arranged in it.
- the shock wave is generated with the aid of a surface coil 6 opposite the membrane, which is spirally wound and separated from the membrane 3 by an insulating layer 7.
- One connection of the surface coil 6 is grounded and the second connection can be connected to a high-voltage generator 8 for generating shock waves.
- the membrane 3 has a flexible base 9, for example a rubber sheet made of a variety of Plate 10 is coated from an electrically conductive material.
- the plates 10 are hexagonal in the example and therefore have a high area coverage. Other shapes with high surface coverage, for example rectangular or square shapes, are also conceivable.
- the high-voltage pulse generated in this way causes the membrane 3 to be repelled, as a result of which a shock wave propagates through the water in the shock-wave tube 1 to the stone in the patient.
- the large number of platelets 10 results in a favorable shock wave course, in particular rapid shock wave generation in the edge region of the membrane 3.
- the desired shock wave course can be achieved by a suitable choice of the inertia and / or electrical conductivity of the individual platelets 10.
- FIG. 3 there is a membrane 3a curved around a focus area 11, which is again covered on its inside with platelets 10a made of conductive material of suitable inertia.
- the surface coil 6a like the membrane 3a and the insulating material layer 7a, is curved around the focus area 11. No acoustic lens is provided in the water-filled space between the bag 2a and the membrane 3a since the focusing is achieved by the curvature of the components 3a, 6a, 7a, 9a.
- the coil support 12 can have a central hole 13, which makes it possible to insert an ultrasound probe to locate the concrements.
- a membrane 3b is provided in the housing 1b closed by the bag 2b and is curved toward the interior of the shock wave source.
- the shock waves generated by the platelets 10b are directed against the inner wall of the cylindrical housing 1b and are reflected from there to the focus area 11.
- the carrier 14 for the surface coil 6b has a central opening 15 for the insertion of the ultrasound probe 16.
- An insulating material layer 7b and the membrane 3b with the components 9b, 10b again lie over the surface coil 6b.
- the embodiment according to FIG. 3 allows a relatively short lead section for higher-frequency pulses, while the embodiment according to FIG. 4 has a relatively long water lead section.
- the platelets 10, 10a, 10b can be vulcanized, glued or laminated onto the flexible base 9, 9a, 9b.
- the shock wave source 3c, 6c, 7c, 9c, 10c is frustoconical.
- the inner wall of the shock wave tube 1c is step-shaped, that is, it forms step reflectors for focusing on the focus area 11.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Surgical Instruments (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8709363U | 1987-07-07 | ||
DE8709363U DE8709363U1 (xx) | 1987-07-07 | 1987-07-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0298334A1 EP0298334A1 (de) | 1989-01-11 |
EP0298334B1 true EP0298334B1 (de) | 1991-06-12 |
Family
ID=6809817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88110225A Expired - Lifetime EP0298334B1 (de) | 1987-07-07 | 1988-06-27 | Stosswellenquelle |
Country Status (3)
Country | Link |
---|---|
US (1) | US4901709A (xx) |
EP (1) | EP0298334B1 (xx) |
DE (2) | DE8709363U1 (xx) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3835318C1 (xx) * | 1988-10-17 | 1990-06-28 | Storz Medical Ag, Kreuzlingen, Ch | |
DE3907605C2 (de) * | 1989-03-09 | 1996-04-04 | Dornier Medizintechnik | Stosswellenquelle |
DE3925322C2 (de) * | 1989-07-31 | 1995-07-13 | Storz Medical Ag | Vorrichtung zur therapeutischen Behandlung mit fokussierten akustischen Wellenfeldern |
EP0412202A1 (de) * | 1989-08-11 | 1991-02-13 | Siemens Aktiengesellschaft | Stosswellenquelle zur Erzeugung von fokussierten Stosswellen mit einem als Rotationsparaboloid ausgebildeten Reflektor |
DE3932745A1 (de) * | 1989-09-30 | 1991-04-18 | Dornier Medizintechnik | Flachspule |
DE3942253A1 (de) * | 1989-12-21 | 1991-06-27 | Dornier Medizintechnik | Halterung eines diagnostischen ultraschall-transducers |
DE4117638A1 (de) * | 1990-05-30 | 1991-12-05 | Toshiba Kawasaki Kk | Stosswellengenerator mit einem piezoelektrischen element |
EP0461287B1 (de) * | 1990-06-13 | 1994-05-04 | Siemens Aktiengesellschaft | Elektrisch antreibbarer akustischer Stosswellengenerator |
US5233972A (en) * | 1990-09-27 | 1993-08-10 | Siemens Aktiengesellschaft | Shockwave source for acoustic shockwaves |
DE4038651C2 (de) * | 1990-12-04 | 1999-10-28 | Siemens Ag | Druckimpulsgenerator |
US5350352A (en) * | 1991-02-21 | 1994-09-27 | Siemens Aktiengesellschaft | Acoustic pressure pulse generator |
DE4110102A1 (de) * | 1991-03-27 | 1992-10-01 | Siemens Ag | Elektromagnetische druckimpulsquelle |
DE4120259A1 (de) * | 1991-06-19 | 1992-12-24 | Siemens Ag | Generator zur erzeugung akustischer wellen |
DE4125088C1 (xx) * | 1991-07-29 | 1992-06-11 | Siemens Ag, 8000 Muenchen, De | |
DE19602686A1 (de) * | 1995-01-26 | 1996-08-08 | Storz Medical Ag | Vorrichtung zur Behandlung von Zähnen |
SE504146C2 (sv) * | 1995-03-16 | 1996-11-18 | Lars Ekberg | Ultraljudsond |
DE19630180C1 (de) * | 1996-07-26 | 1997-10-09 | Dornier Medizintechnik | Stoßwellenquelle nach dem elektromagnetischen Prinzip |
US5941838A (en) * | 1996-07-26 | 1999-08-24 | Dornier Medizintechnik Gmbh | Shock wave source based on the electromagnetic principle |
IL119305A0 (en) * | 1996-09-26 | 1996-12-05 | Palanker Daniel | A method and a device for electro microsurgery in a physiological liquid environment |
US6352535B1 (en) | 1997-09-25 | 2002-03-05 | Nanoptics, Inc. | Method and a device for electro microsurgery in a physiological liquid environment |
DE19723499C1 (de) * | 1997-06-05 | 1998-08-13 | Dornier Medizintechnik | Stoßwellenquelle nach dem elektromagnetischen Prinzip |
US8043286B2 (en) | 2002-05-03 | 2011-10-25 | The Board Of Trustees Of The Leland Stanford Junior University | Method and apparatus for plasma-mediated thermo-electrical ablation |
US6780178B2 (en) * | 2002-05-03 | 2004-08-24 | The Board Of Trustees Of The Leland Stanford Junior University | Method and apparatus for plasma-mediated thermo-electrical ablation |
DE10228830B4 (de) * | 2002-06-27 | 2007-05-03 | Siemens Ag | Balg zur Ankopplung einer ein akustisches Ausbreitungsmedium aufweisenden Quelle akustischer Wellen an ein Lebewesen |
US7736361B2 (en) | 2003-02-14 | 2010-06-15 | The Board Of Trustees Of The Leland Stamford Junior University | Electrosurgical system with uniformly enhanced electric field and minimal collateral damage |
WO2004073752A2 (en) * | 2003-02-14 | 2004-09-02 | The Board Of Trustees Of The Leland Stanford Junior University | Electrosurgical system with uniformly enhanced electric field and minimal collateral damage |
AU2004249284A1 (en) * | 2003-06-18 | 2004-12-29 | The Board Of Trustees Of The Leland Stanford Junior University | Electro-adhesive tissue manipulator |
AU2007317958B2 (en) | 2006-11-02 | 2013-08-22 | Peak Surgical, Inc. | Electric plasma-mediated cutting and coagulation of tissue and surgical apparatus |
US20090306642A1 (en) * | 2008-06-10 | 2009-12-10 | Vankov Alexander B | Method for low temperature electrosugery and rf generator |
US8137345B2 (en) | 2009-01-05 | 2012-03-20 | Peak Surgical, Inc. | Electrosurgical devices for tonsillectomy and adenoidectomy |
US8556813B2 (en) | 2009-07-08 | 2013-10-15 | Sanuwave, Inc. | Extracorporeal pressure shock wave device |
WO2012170364A1 (en) | 2011-06-10 | 2012-12-13 | Medtronic, Inc. | Wire electrode devices for tonsillectomy and adenoidectomy |
WO2013082352A1 (en) | 2011-12-01 | 2013-06-06 | Microbrightfield, Inc. | Acoustic pressure wave/shock wave mediated processing of biological tissue, and systems, apparatuses, and methods therefor |
CN104138638B (zh) * | 2014-07-15 | 2017-06-20 | 深圳市慧康精密仪器有限公司 | 一种勃起功能障碍冲击波治疗仪 |
NL2013968B1 (en) * | 2014-12-12 | 2016-10-11 | Fugro N V | Pressure tolerant seismic source. |
US10658912B2 (en) * | 2017-03-31 | 2020-05-19 | Lite-Med Inc. | Shock wave generating unit |
KR102303492B1 (ko) * | 2021-02-19 | 2021-09-24 | (주)영인바이오텍 | 디스크형 코일을 활용한 전자기식 체외충격파 치료기 |
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 (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB704633A (en) * | 1950-09-23 | 1954-02-24 | Brush Dev Co | Electro-acoustic device |
AU550225B2 (en) * | 1982-05-26 | 1986-03-06 | Ontario Cancer Institute, The | Ultrasonic imaging device |
DE3328068A1 (de) * | 1983-08-03 | 1985-02-21 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zum beruehrungslosen zertruemmern von konkrementen |
DE3328051A1 (de) * | 1983-08-03 | 1985-02-14 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zum beruehrungslosen zertruemmern von konkrementen |
EP0209053A3 (de) * | 1985-07-18 | 1987-09-02 | Wolfgang Prof. Dr. Eisenmenger | Verfahren und Einrichtung zur berührungsfreien Zertrümmerung von Konkrementen im Körper von Lebewesen |
DE8627238U1 (xx) * | 1986-10-06 | 1988-02-04 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De |
-
1987
- 1987-07-07 DE DE8709363U patent/DE8709363U1/de not_active Expired
-
1988
- 1988-06-27 EP EP88110225A patent/EP0298334B1/de not_active Expired - Lifetime
- 1988-06-27 DE DE8888110225T patent/DE3863238D1/de not_active Expired - Fee Related
- 1988-06-30 US US07/214,048 patent/US4901709A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE8709363U1 (xx) | 1988-11-03 |
EP0298334A1 (de) | 1989-01-11 |
DE3863238D1 (de) | 1991-07-18 |
US4901709A (en) | 1990-02-20 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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ET | Fr: translation filed | ||
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STAA | Information on the status of an ep patent application or granted ep patent |
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