EP0328943B1 - Shock wave generator for the non-contacting disintegration of concretions - Google Patents
Shock wave generator for the non-contacting disintegration of concretions Download PDFInfo
- Publication number
- EP0328943B1 EP0328943B1 EP89101741A EP89101741A EP0328943B1 EP 0328943 B1 EP0328943 B1 EP 0328943B1 EP 89101741 A EP89101741 A EP 89101741A EP 89101741 A EP89101741 A EP 89101741A EP 0328943 B1 EP0328943 B1 EP 0328943B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shock
- shock wave
- wave source
- wave generator
- housing
- 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
- 230000035939 shock Effects 0.000 title claims description 48
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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
- G10K11/35—Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams
- G10K11/352—Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams by moving the transducer
Definitions
- the invention relates to a shock wave generator for the contactless smashing of concrements located in the body of a living being with a shock wave source in a housing and with a sack covering the outlet opening for the shock waves, which limits the coupling space filled with a coupling fluid.
- shock wave generator of this type is described in DE-A-33 28 051.
- the shock wave source is arranged stationary with respect to the housing.
- the entire shock wave generator must therefore be adjusted to adjust the focus.
- the shock wave generator e.g. Acoustically coupled via the sack and a gel disc to the surface of the patient and if a focus shift is then required, a decoupling and a new acoustic coupling must take place. This puts a strain on the examination staff.
- EP-A-0 327 917 which is older but has a higher priority, describes a shock wave generator, the shock wave source of which, in its entirety, is mounted such that it can be adjusted in a straight line relative to the housing along the central axis of the shock wave generator.
- DE-A-2 732 254 describes a device for installing the transducer of an echo sounder in the boat wall of a boat, which has a fastening body designed as an essentially closed housing, on which the transducer is mounted so that it can be aligned and locked. After the transducer has been installed in the boat wall, the transducer is aligned and once in the required manner then determined that it maintains its orientation as long as it is installed in the respective boat.
- the invention has for its object to design a shock wave generator of the type mentioned in such a way that a focus shift within predetermined limits is possible even when the shock wave generator is already acoustically coupled to the surface of the patient.
- the shock wave source is mounted such that it can be adjusted in two dimensions in such a way that the longitudinal axis of the shock wave source can be pivoted independently of the housing and the bag.
- the shock wave generator according to the invention it is accordingly possible, by adjusting the shock wave source in its housing with a housing that is stationary with respect to the patient, to carry out a focus shift and thus an optimal focus adjustment.
- the shock wave generator can be coupled to the patient by adjusting the housing with the bag relative to the shock wave source. With this adjustment the focus position does not change.
- An expedient embodiment of the invention consists in that the shock wave source is connected to a centrally arranged location system and is adjustably mounted together with it.
- the adjustment of the location system with coupled shock wave generator enables fine or localization. If this location shows that the focus does not have the desired position in the calculus to be crushed, the focus system can automatically adjust the focus by adjusting the shock wave source on the basis of the output signals.
- a housing 1 in which a shock wave source 2 is arranged.
- the shock wave source 2 has a piezo crystal 3, which directs shock waves via an acoustic lens 4 to a focus 5.
- An acoustic sump 6 is arranged behind the piezo crystal 3 and absorbs the shock waves emitted on the rear.
- the coupling space 7 in the housing 1 is filled with a coupling liquid, e.g. Water, filled.
- a coupling liquid e.g. Water
- the end of the housing 1 that emits the shock waves is closed by a flexible sack 8, which is used for acoustic coupling to the patient. He lies on the surface of the body.
- the shock wave generator shown has an ultrasound location system 9 which is located centrally in the shock wave source 2.
- the ultrasound locating system 9 is rotatably mounted for locating the concrement to be broken. It is connected to the shock wave source 2 with a tube 10, which with With the help of a ball joint 11 is pivotally mounted in two dimensions, in two coordinates that define a plane perpendicular to the plane of the drawing.
- the tube 10 is adjusted with the aid of electric motors, one of which is designated 12, via a gear 13.
- the housing 1 is connected to a holder 14 by means of guides 15, 16.
- the guide 15 has a motor-rotatable threaded spindle, which makes it possible to connect the housing 1 with the shock wave source 2 relative to the holder 14 in the third dimension, i.e. to adjust in the direction of axis 17.
- the housing 1 For shock wave treatment, the housing 1 is moved so far to the body surface of the patient with the aid of the guides 15, 16 that the sack 8 lies against this body surface. A reflection-free sound transition is possible by inserting a gel disc between the sack 8 and the body surface.
- the setting of the shock wave source 4 with the ultrasound location system 9 can be carried out independently of this adjustment process by pivoting the tube 10. The components 4, 9 are adjusted in the housing 1.
- shock wave generator coupled to the patient, to shift the focus 5 within predetermined limits, that is to say to adjust it precisely to the concretion.
- the position of the calculus can be located and the focus can then be adjusted accordingly.
- This focus adjustment can also take place automatically via the motors 13, etc. driving the tube 10.
- a suitable pivoting of the tube 10 with the shock wave source 2 enables the focus 5 to move on a predetermined path.
- the motors 13, etc. are controlled accordingly.
- a focus area of a predetermined extent can be scanned and an artificial focus magnification can be achieved in this way.
- the shock wave source 2 is a piezoelectric shock wave source in the illustrated embodiment. Instead of such a piezoelectric shock wave source, another shock wave source, e.g. an electrodynamic shock wave source are used, in which the shock waves are generated with the aid of a membrane, behind which there is a flat coil, to which high-voltage pulses are supplied.
- the shock wave source 2 is arranged in its holder 18 with the aid of a screw connection 19 so that the desired shock wave source can be used.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Surgical Instruments (AREA)
Description
Die Erfindung betrifft einen Stoßwellengenerator zum berührungslosen Zertrümmern von im Körper eines Lebewesens befindlichen Konkrementen mit einer Stoßwellenquelle in einem Gehäuse und mit einem die Austrittsöffnung für die Stoßwellen abdeckenden Sack, der den mit einer Koppelflüssigkeit gefüllten Ankopplungsraum begrenzt.The invention relates to a shock wave generator for the contactless smashing of concrements located in the body of a living being with a shock wave source in a housing and with a sack covering the outlet opening for the shock waves, which limits the coupling space filled with a coupling fluid.
Ein Stoßwellengenerator dieser Art ist in der DE-A-33 28 051 beschrieben. Bei diesem Stoßwellengenerator ist die Stoßwellenquelle ortsfest in bezug auf das Gehäuse angeordnet. Zur Fokuseinstellung muß daher der gesamte Stoßwellengenerator verstellt werden. Ist der Stoßwellengenerator z.B. über den Sack und eine Gelscheibe an der Oberfläche des Patienten akustisch angekoppelt und ist danach eine Fokusverlagerung erforderlich, so muß eine Abkopplung und eine erneute akustische Ankopplung erfolgen. Dadurch wird das Untersuchungspersonal belastet.A shock wave generator of this type is described in DE-A-33 28 051. In this shock wave generator, the shock wave source is arranged stationary with respect to the housing. The entire shock wave generator must therefore be adjusted to adjust the focus. Is the shock wave generator e.g. Acoustically coupled via the sack and a gel disc to the surface of the patient and if a focus shift is then required, a decoupling and a new acoustic coupling must take place. This puts a strain on the examination staff.
In der prioritätsälteren, jedoch nachveröffentlichten EP-A-0 327 917 ist ein Stoßwellengenerator beschrieben, dessen Stoßwellenquelle in ihrer Gesamtheit längs der Mittelachse des Stoßwellengenerators relativ zum Gehäuse geradlinig verstellbar gelagert ist.EP-A-0 327 917, which is older but has a higher priority, describes a shock wave generator, the shock wave source of which, in its entirety, is mounted such that it can be adjusted in a straight line relative to the housing along the central axis of the shock wave generator.
In der DE-A-2 732 254 ist eine Einrichtung zum Einbau des Schwingers eines Echolots in die Bootswand eines Bootes beschrieben, die einen als im wesentlichen geschlossenes Gehäuse ausgebildeten Befestigungskörper aufweist, an dem der Schwinger ausrichtbar und feststellbar gehaltert ist. Nach dem erfolgten Einbau des Schwingers in die Bootswand wird der Schwinger einmal in der erforderlichen Weise ausgerichtet und dann festgestellt, da er seine Ausrichtung beibehält, solange er in das jeweilige Boot eingebaut ist.DE-A-2 732 254 describes a device for installing the transducer of an echo sounder in the boat wall of a boat, which has a fastening body designed as an essentially closed housing, on which the transducer is mounted so that it can be aligned and locked. After the transducer has been installed in the boat wall, the transducer is aligned and once in the required manner then determined that it maintains its orientation as long as it is installed in the respective boat.
Der Erfindung liegt die Aufgabe zugrunde, einen Stoßwellengenerator der eingangs genannten Art so auszubilden, daß auch dann, wenn der Stoßwellengeneratgr bereits akustisch an der Oberfläche des Patienten angekoppelt ist, eine Fokusverlagerung innerhalb vorbestimmter Grenzen möglich ist.The invention has for its object to design a shock wave generator of the type mentioned in such a way that a focus shift within predetermined limits is possible even when the shock wave generator is already acoustically coupled to the surface of the patient.
Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß die Stoßwellenquelle derart zweidimensional verstellbar gelagert, daß die Längsachse der Stoßwellenquelle unabhängig von dem Gehäuse und dem Sack relativ zu diesen schwenkbar ist. Bei dem erfindungsgemäßen Stoßwellengenerator ist es demgemäß möglich, durch Verstellung der Stoßwellenquelle in ihrem Gehäuse bei in bezug auf den Patienten ortsfestem Gehäuse eine Fokusverlagerung und damit eine optimale Fokuseinstellung vorzunehmen.This object is achieved in that the shock wave source is mounted such that it can be adjusted in two dimensions in such a way that the longitudinal axis of the shock wave source can be pivoted independently of the housing and the bag. In the shock wave generator according to the invention, it is accordingly possible, by adjusting the shock wave source in its housing with a housing that is stationary with respect to the patient, to carry out a focus shift and thus an optimal focus adjustment.
Darüber hinaus kann bei ortsfestem Fokus eine Ankopplung des Stoßwellengenerators an den Patienten durch Verstellung des Gehäuses mit dem Sack gegenüber der Stoßwellenquelle erfolgen. Bei dieser Verstellung verändert sich die Fokuslage nicht.In addition, with a fixed focus, the shock wave generator can be coupled to the patient by adjusting the housing with the bag relative to the shock wave source. With this adjustment the focus position does not change.
Eine zweckmäßige Ausgestaltung der Erfindung besteht darin, daß die Stoßwellenquelle mit einem zentrisch angeordneten Ortungssystem verbunden und zusammen mit diesem verstellbar gelagert ist. Dabei ist durch die Verstellung des Ortungssystems bei angekoppeltem Stoßwellengenerator eine Fein- bzw. Nachortung möglich. Ergibt sich bei dieser Ortung, daß der Fokus nicht die gewünschte Lage im zu zertrümmernden Konkrement hat, so kann aufgrund der Ausgangssignale des Ortungssystems eine automatische Nachführung des Fokus durch Verstellung der Stoßwellenquelle erfolgen.An expedient embodiment of the invention consists in that the shock wave source is connected to a centrally arranged location system and is adjustably mounted together with it. The adjustment of the location system with coupled shock wave generator enables fine or localization. If this location shows that the focus does not have the desired position in the calculus to be crushed, the focus system can automatically adjust the focus by adjusting the shock wave source on the basis of the output signals.
Die Erfindung ist nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The invention is explained below with reference to an embodiment shown in the drawing.
In der Zeichnung ist ein Gehäuse 1 dargestellt, in dem eine Stoßwellenquelle 2 angeordnet ist. Die Stoßwellenquelle 2 weist einen Piezokristall 3 auf, der Stoßwellen über eine akustische Linse 4 auf einen Fokus 5 richtet. Hinter dem Piezokristall 3 ist ein akustischer Sumpf 6 angeordnet, der die rückseitig ausgesandten Stoßwellen absorbiert.In the drawing, a housing 1 is shown, in which a shock wave source 2 is arranged. The shock wave source 2 has a
Der Ankopplungsraum 7 im Gehäuse 1 ist mit einer Koppelflüssigkeit, z.B. Wasser, gefüllt. Das die Stoßwellen abstrahlende Ende des Gehäuses 1 ist von einem flexiblen Sack 8 verschlossen, der zur akustischen Ankopplung an den Patienten dient. Er legt sich dabei an die Körperoberfläche an.The coupling space 7 in the housing 1 is filled with a coupling liquid, e.g. Water, filled. The end of the housing 1 that emits the shock waves is closed by a flexible sack 8, which is used for acoustic coupling to the patient. He lies on the surface of the body.
Der dargestellte Stoßwellengenerator weist ein Ultraschall-Ortungssystem 9 auf, das zentrisch in der Stoßwellenquelle 2 liegt. Das Ultraschall-Ortungssystem 9 ist zur Ortung des zu zertrümmernden Konkrements drehbar gelagert. Es ist zusammen mit der Stoßwellenquelle 2 mit einem Rohr 10 verbunden, das mit Hilfe eines Kugelgelenkes 11 zweidimensional schwenkbar gelagert ist, und zwar in zwei Koordinaten, die eine senkrecht zur Zeichenebene liegende Ebene definieren. Die Verstellung des Rohres 10 erfolgt mit Hilfe von Elektromotoren, von denen einer mit 12 bezeichnet ist, über ein Getriebe 13.The shock wave generator shown has an ultrasound location system 9 which is located centrally in the shock wave source 2. The ultrasound locating system 9 is rotatably mounted for locating the concrement to be broken. It is connected to the shock wave source 2 with a tube 10, which with With the help of a ball joint 11 is pivotally mounted in two dimensions, in two coordinates that define a plane perpendicular to the plane of the drawing. The tube 10 is adjusted with the aid of electric motors, one of which is designated 12, via a gear 13.
Das Gehäuse 1 ist mit einem Halter 14 mit Hilfe von Führungen 15, 16 verbunden. Die Führung 15 weist eine motorisch drehbare Gewindespindel auf, die es ermöglicht, das Gehäuse 1 mit der Stoßwellenquelle 2 relativ zum Halter 14 in der dritten Dimension, d.h. in Richtung der Achse 17 zu verstellen.The housing 1 is connected to a
Zur Stoßwellenbehandlung wird das Gehäuse 1 mit Hilfe der Führungen 15, 16 soweit an die Körperoberfläche des Patienten herangefahren, daß sich der Sack 8 an diese Körperoberfläche anlegt. Ein reflexionsfreier Schallübergang ist durch die Einfügung einer Gelscheibe zwischen dem Sack 8 und der Körperoberfläche möglich. Die Einstellung der Stoßwellenquelle 4 mit dem Ultraschall-Ortungssystem 9 kann unabhängig von diesem Verstellvorgang durch Schwenken des Rohres 10 erfolgen. Dabei werden die Komponenten 4, 9 im Gehäuse 1 verstellt.For shock wave treatment, the housing 1 is moved so far to the body surface of the patient with the aid of the
Auf diese Weise ist es möglich, bei am Patienten angekoppeltem Stoßwellengenerator den Fokus 5 innerhalb vorbestimmter Grenzen zu verlagern, also exakt auf das Konkrement einzustellen. Mit Hilfe des Ultraschall-Ortungssystems 9 kann die Lage des Konkrementes geortet und der Fokus dann entsprechend eingestellt werden. Diese Fokuseinstellung kann auch automatisch über die das Rohr 10 antreibenden Motoren 13 usw. erfolgen.In this way it is possible, with the shock wave generator coupled to the patient, to shift the focus 5 within predetermined limits, that is to say to adjust it precisely to the concretion. With the help of the ultrasound location system 9, the position of the calculus can be located and the focus can then be adjusted accordingly. This focus adjustment can also take place automatically via the motors 13, etc. driving the tube 10.
Während der Behandlung ist durch geeignetes Schwenken des Rohres 10 mit der Stoßwellenquelle 2 eine Bewegung des Fokus 5 auf einer vorbestimmten Bahn möglich. Hierzu werden die Motoren 13 usw. entsprechend angesteuert. Dadurch kann ein Fokusbereich einer vorbestimmten Ausdehnung abgetastet und auf diese Weise eine künstliche Fokusvergrößerung erzielt werden.During the treatment, a suitable pivoting of the tube 10 with the shock wave source 2 enables the focus 5 to move on a predetermined path. For this purpose, the motors 13, etc. are controlled accordingly. As a result, a focus area of a predetermined extent can be scanned and an artificial focus magnification can be achieved in this way.
Die relative Verstellbarkeit des Gehäuses 1 und der Stoßwellenquelle 2 mit dem Ultraschall-Ortungssystem 9 in Richtung der Achse 17 bietet folgende Möglichkeiten:
- Bei am Patienten angekoppeltem Stoßwellengenerator ist eine Fokuseinstellung durch Verstellung der Stoßwellenquelle 2 in dem Gehäuse 1 möglich. Das Gehäuse 1 mit dem Sack 8 ändert dabei seine Lage in Bezug auf den Patienten nicht.
- Bei isozentrischer Arbeitsweise, d.h. bei räumlich fest vorgegebener Fokuslage, ist das Gehäuse 1 mit dem Sack 8 zur Ankopplung an der Körperoberfläche des Patienten verschiebbar.
- When the shock wave generator is coupled to the patient, focus adjustment is possible by adjusting the shock wave source 2 in the housing 1. The housing 1 with the bag 8 does not change its position in relation to the patient.
- In the case of isocentric mode of operation, that is to say in the case of a spatially fixed focus position, the housing 1 with the bag 8 can be displaced for coupling to the body surface of the patient.
Die Stoßwellenquelle 2 ist bei dem dargestellten Ausführungsbeispiel eine piezoelektrische Stoßwellenquelle. Anstelle einer solchen piezoelektrischen Stoßwellenquelle kann auch eine andere Stoßwellenquelle, z.B. eine elektrodynamische Stoßwellenquelle, Verwendung finden, bei der die Stoßwellen mit Hilfe einer Membran erzeugt werden, hinter der eine Flachspule liegt, der Hochspannungsimpulse zugeführt werden. Die Stoßwellenquelle 2 ist in ihrer Halterung 18 mit Hilfe einer Schraubverbindung 19 austauschbar angeordnet, so daß die jeweils gewünschte Stoßwellenquelle eingesetzt werden kann.The shock wave source 2 is a piezoelectric shock wave source in the illustrated embodiment. Instead of such a piezoelectric shock wave source, another shock wave source, e.g. an electrodynamic shock wave source are used, in which the shock waves are generated with the aid of a membrane, behind which there is a flat coil, to which high-voltage pulses are supplied. The shock wave source 2 is arranged in its
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8801989U | 1988-02-16 | ||
| DE8801989U DE8801989U1 (en) | 1988-02-16 | 1988-02-16 | Shock wave generator for contactless crushing of concretions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0328943A1 EP0328943A1 (en) | 1989-08-23 |
| EP0328943B1 true EP0328943B1 (en) | 1992-05-06 |
Family
ID=6820727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89101741A Expired - Lifetime EP0328943B1 (en) | 1988-02-16 | 1989-02-01 | Shock wave generator for the non-contacting disintegration of concretions |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4947830A (en) |
| EP (1) | EP0328943B1 (en) |
| DE (2) | DE8801989U1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3835318C1 (en) * | 1988-10-17 | 1990-06-28 | Storz Medical Ag, Kreuzlingen, Ch | |
| DE3916093A1 (en) * | 1989-05-17 | 1990-11-22 | Wolf Gmbh Richard | LITHOTRIPTOR |
| DE3942253A1 (en) * | 1989-12-21 | 1991-06-27 | Dornier Medizintechnik | SUPPORT FOR A DIAGNOSTIC ULTRASONIC TRANSDUCER |
| DE59005639D1 (en) * | 1990-06-13 | 1994-06-09 | Siemens Ag | Electrically driven acoustic shock wave generator. |
| DE4119524C2 (en) * | 1991-06-13 | 1998-08-20 | Siemens Ag | Device for the treatment of bone disorders by means of acoustic waves |
| DE4143540C2 (en) * | 1991-10-24 | 1996-08-08 | Siemens Ag | Therapeutic assembly for treatment by acoustic irradiation |
| DE4135177C2 (en) * | 1991-10-24 | 1998-04-09 | Siemens Ag | Therapy device for the treatment of a living being with focused acoustic waves |
| US5240002A (en) * | 1992-03-23 | 1993-08-31 | Bantum Tripter Joint Venture Partners | Ultrasound transducer shielding |
| DE4238645C1 (en) * | 1992-11-16 | 1994-05-05 | Siemens Ag | Therapeutic ultrasonic applicator for urogenital area - has ultrasonic waves focussed onto working zone defined by envelope curve with two perpendicular main axes |
| US20040167397A1 (en) * | 2003-02-25 | 2004-08-26 | Hmt Holding Ag | Medical system |
| EP2605830A4 (en) * | 2010-08-18 | 2015-12-02 | Mirabilis Medica Inc | Hifu applicator |
| US20220409934A1 (en) * | 2021-06-24 | 2022-12-29 | Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America | Intra-kidney stone disruptor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0327917A1 (en) * | 1988-02-10 | 1989-08-16 | Siemens Aktiengesellschaft | Shock wave generator for the non-contacting disintegration of concretions in a body |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2559227A (en) * | 1947-05-24 | 1951-07-03 | Interval Instr Inc | Shock wave generator |
| US3039078A (en) * | 1959-03-17 | 1962-06-12 | Kenneth H Wilcoxon | Stabilized echo depth sounding apparatus |
| DE2732254A1 (en) * | 1977-07-16 | 1979-01-25 | Vdo Schindling | Echo-sounder oscillator installation in boat hull - uses cylindrical box enclosure and set of wedge washers for bolt angle adjustment |
| DE2902331A1 (en) * | 1979-01-22 | 1980-07-31 | Gerhart Dr Med Tepohl | Medical instrument for varicose vein treatment - has ring of crystals to concentrate ultrasonic energy on treatment zone, with focus adjustment |
| EP0131653A1 (en) * | 1983-07-19 | 1985-01-23 | N.V. Optische Industrie "De Oude Delft" | Apparatus for the non-contact disintegration of stony objects present in a body by means of sound shockwaves |
| DE3328068A1 (en) * | 1983-08-03 | 1985-02-21 | Siemens AG, 1000 Berlin und 8000 München | DEVICE FOR CONTACTLESS CRUSHING OF CONCRETE |
| DE3328051A1 (en) * | 1983-08-03 | 1985-02-14 | Siemens AG, 1000 Berlin und 8000 München | DEVICE FOR CONTACTLESS CRUSHING OF CONCRETE |
| DE3532678A1 (en) * | 1985-09-13 | 1987-03-26 | Wolf Gmbh Richard | DEVICE FOR LOCATING AND CRUSHING CONCRETE IN BODY CAVES |
| FR2587893B1 (en) * | 1985-09-27 | 1990-03-09 | Dory Jacques | METHOD AND APPARATUS FOR TRACKING ALLOWING, DURING A LITHOTRIPSY, TO ASSESS THE DEGREE OF FRAGMENTATION OF THE CALCULATIONS |
| DE3544628A1 (en) * | 1985-12-17 | 1987-06-19 | Eisenmenger Wolfgang | DEVICE FOR MECHANICALLY ACOUSTIC CONNECTION OF PRESSURE SHAFTS, ESPECIALLY OF FOCUSED SHOCK WAVES TO THE BODY OF LIVING BEINGS |
| DE8701218U1 (en) * | 1987-01-26 | 1988-05-26 | Siemens AG, 1000 Berlin und 8000 München | Lithotripsy workstation |
| EP0278304A1 (en) * | 1987-02-04 | 1988-08-17 | Siemens Aktiengesellschaft | Lithotripter with an integrated positioning device |
| DE3723920A1 (en) * | 1987-04-04 | 1989-01-26 | Philips Patentverwaltung | LITHOTRIPSY WORKPLACE |
-
1988
- 1988-02-16 DE DE8801989U patent/DE8801989U1/en not_active Expired
-
1989
- 1989-01-19 US US07/298,755 patent/US4947830A/en not_active Expired - Fee Related
- 1989-02-01 DE DE8989101741T patent/DE58901296D1/en not_active Expired - Lifetime
- 1989-02-01 EP EP89101741A patent/EP0328943B1/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0327917A1 (en) * | 1988-02-10 | 1989-08-16 | Siemens Aktiengesellschaft | Shock wave generator for the non-contacting disintegration of concretions in a body |
Also Published As
| Publication number | Publication date |
|---|---|
| DE58901296D1 (en) | 1992-06-11 |
| US4947830A (en) | 1990-08-14 |
| DE8801989U1 (en) | 1989-06-15 |
| EP0328943A1 (en) | 1989-08-23 |
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