DE3536073A1 - Device for crushing calculi - Google Patents

Device for crushing calculi

Info

Publication number
DE3536073A1
DE3536073A1 DE19853536073 DE3536073A DE3536073A1 DE 3536073 A1 DE3536073 A1 DE 3536073A1 DE 19853536073 DE19853536073 DE 19853536073 DE 3536073 A DE3536073 A DE 3536073A DE 3536073 A1 DE3536073 A1 DE 3536073A1
Authority
DE
Germany
Prior art keywords
shock wave
liquid
wave generator
hollow body
filled
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.)
Ceased
Application number
DE19853536073
Other languages
German (de)
Inventor
Benedikt Dipl Ing Hartinger
Matthias Dipl Ing Mahler
Manfred Rattner
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE19853536073 priority Critical patent/DE3536073A1/en
Publication of DE3536073A1 publication Critical patent/DE3536073A1/en
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/225—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for for extracorporeal shock wave lithotripsy [ESWL], e.g. by using ultrasonic waves
    • A61B17/2251—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for for extracorporeal shock wave lithotripsy [ESWL], e.g. by using ultrasonic waves characterised by coupling elements between the apparatus, e.g. shock wave apparatus or locating means, and the patient, e.g. details of bags, pressure control of bag on patient
    • 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
    • G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device

Abstract

The invention relates to a device for the contactless crushing of calculi (7) in the body of a living being (6), which device has a shock wave source (3) on one end of a shock wave generator (1), filled with a liquid (2), the shock wave generator (1) being sealed by a flexible membrane (4) on its other end. In the space receiving the liquid (2) there is arranged a gas-fillable, elastic hollow body (8) for regulating or keeping constant the contact pressure on the patient (6). <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum berührungs­ losen Zertrümmern von Steinen im Körper eines Lebewesens, die an einem Ende eines mit Flüssigkeit gefüllten Stoß­ wellenerzeugers eine Stoßwellenquelle aufweist, wobei der Stoßwellenerzeuger am anderen Ende von einer flexiblen Membran abgeschlossen ist.The invention relates to a device for touch loose smashing of stones in the body of a living being, the one end of a fluid-filled bump has a shock wave source, the Shock wave generator on the other end of a flexible Membrane is complete.

Eine Vorrichtung dieser Art ist mit der Membran an der Körperoberfläche im Bereich des zu zertrümmernden Stei­ nes, z.B. Nierensteines, anlegbar. Die erzeugten Stoßwel­ len werden dabei auf den Stein fokussiert und zertrümmern diesen, so daß er auf natürlichem Wege abgeht.A device of this type is attached to the membrane Body surface in the area of the stone to be crushed nes, e.g. Kidney stone, can be put on. The generated shock wave len are focused on the stone and smashed this so that it goes off naturally.

Bei einer Vorrichtung dieser Art sollte der Flüssigkeits­ druck möglichst beim Anlegen an die Körperoberfläche des Patienten trotz Verformung der Membran konstant gehalten werden.In a device of this type, the liquid If possible, apply pressure to the body surface of the Patients kept constant despite membrane deformation will.

Der Erfindung liegt demgemäß die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art so auszubilden, daß unabhängig von der auf die Membran und die Flüssig­ keit ausgeübten Kraft der Flüssigkeitsdruck konstant ge­ halten werden kann.The invention is accordingly based on the object To design the device of the type mentioned at the beginning that regardless of the on the membrane and the liquid force exerted on the fluid pressure is constant can be held.

Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß in dem die Flüssigkeit aufnehmenden Raum ein mit Gas füll­ barer, elastischer Hohlkörper angeordnet ist. Über den Gasdruck in diesem Hohlkörper ist der Flüssigkeitsdruck einstellbar. Er kann auf diese Weise auch geregelt bzw. konstant gehalten werden.This object is achieved in that in fill the liquid-absorbing space with gas barer, elastic hollow body is arranged. On the Gas pressure in this hollow body is the liquid pressure adjustable. It can also be regulated or  be kept constant.

Die Erfindung ist nachfolgend anhand eines in der Zeich­ nung dargestellten Ausführungsbeispieles näher erläutert. Es zeigen:The invention is based on a in the drawing tion illustrated embodiment explained in more detail. Show it:

Fig. 1 eine Vorrichtung nach der Erfindung, und Fig. 1 shows a device according to the invention, and

Fig. 2 die Vorrichtung gemäß Fig. 1 in am Patienten angelegtem Zustand. Fig. 2 shows the device of FIG. 1 in the state applied to the patient.

In der Zeichnung ist ein Stoßwellenerzeuger 1 darge­ stellt, der mit Flüssigkeit 2 gefüllt ist. Der Stoßwel­ lenerzeuger 1 weist an seinem unteren Ende eine Stoßwel­ lenquelle 3 auf. Sein Applikationsende ist von einer fle­ xiblen Membran 4 abgeschlossen. Die Applikation erfolgt gemäß Fig. 2 in der Weise, daß der Stoßwellenerzeuger 1 mit der Membran 4 unter Zwischenschaltung eines Geles 5 an der Oberfläche eines im Querschnitt dargestellten Pa­ tienten 6 angelegt wird.In the drawing, a shock wave generator 1 is Darge, which is filled with liquid 2 . The shock wave lener generator 1 has a shock wave lenquelle 3 at its lower end. Its application end is closed by a flexible membrane 4 . The application is carried out according to Fig. 2 in such a way that the shock wave generator 1 with the membrane 4 with the interposition of a gel on the surface of a 5 tienten Pa shown in cross-section is applied. 6

Bei dem dargestellten Beispiel soll ein Nierenstein 7 zertrümmert werden. Hierzu werden die von der Stoßwellen­ quelle 3 erzeugten Stoßwellen mit Hilfe einer akustischen Linse 12 auf den Nierenstein 7 fokussiert, welche gestri­ chelt eingezeichnete Kanäle aufweist, die den Raum hinter der Membran 4 mit dem Raum vor der Stoßwellenquelle 3 miteinander verbinden.In the example shown, a kidney stone 7 is to be smashed. For this purpose, the source of the shock wave 3 generated shock waves are focused by means of an acoustic lens 12 to the kidney stone 7, which has gestri smiles drawn channels behind the diaphragm 4 connect the space with the space in front of the shock wave source 3 to each other.

Zur Einstellung und Regelung des Druckes der Flüssigkeit 2 und damit des Anpreßdruckes am Patienten 6 ist in dem die Flüssigkeit aufnehmenden Raum ein mit Gas, insbeson­ dere mit Luft, füllbarer elastischer Hohlkörper 8 vorge­ sehen. Der Hohlkörper 8 ist als an der Innenwand des Stoßwellenerzeugers 1 anliegender, hohler Ring ausgebil­ det. Der vom Hohlkörper 8 umschlossene Raum ist über eine Leitung 9 mit einer Druckluftleitung 10 über einen Druck­ regler 11 verbunden.To adjust and control the pressure of the liquid 2 and thus the contact pressure on the patient 6 is in the liquid-receiving space with gas, in particular with air, fillable elastic hollow body 8 see easily. The hollow body 8 is ausgebil det as an adjacent to the inner wall of the shock wave generator 1 , hollow ring. The space enclosed by the hollow body 8 is connected via a line 9 to a compressed air line 10 via a pressure regulator 11 .

Mit Hilfe des Druckreglers 11 kann der Druck im Innern des Hohlkörpers 8 und damit auch der Druck der Flüssig­ keit 2 und der Anpreßdruck am Patienten 6 geregelt, ins­ besondere konstant gehalten werden.With the help of the pressure regulator 11 , the pressure inside the hollow body 8 and thus also the pressure of the liquid speed 2 and the contact pressure on the patient 6 can be regulated, in particular kept constant.

Claims (3)

1. Vorrichtung zum berührungslosen Zertrümmern von Stei­ nen (7) im Körper eines Lebewesens (6), die an einem Ende eines mit Flüssigkeit (2) gefüllten Stoßwellenerzeugers (1) eine Stoßwellenquelle (3) aufweist, wobei der Stoß­ wellenerzeuger (1) am anderen Ende von einer flexiblen Membran (4) abgeschlossen ist, dadurch ge­ kennzeichnet, daß in dem die Flüssigkeit (2) aufnehmenden Raum ein mit Gas füllbarer, elastischer Hohlkörper (8) angeordnet ist.1. A device for contactless disintegration of sti NEN (7) in the body of a living being (6) having at one end a filled with liquid (2) Shock wave generator (1) has a shock wave source (3), wherein the shock wave generator (1) at the other end is closed by a flexible membrane ( 4 ), characterized in that an elastic hollow body ( 8 ) which can be filled with gas is arranged in the liquid ( 2 ) receiving space. 2. Vorrichtung nach Anspruch 1, dadurch ge­ kennzeichnet, daß der Hohlkörper (8) als an der Innenwand des Stoßwellenerzeugers (1) anliegender, hohler Ring ausgebildet ist.2. Apparatus according to claim 1, characterized in that the hollow body ( 8 ) is formed as an adjacent to the inner wall of the shock wave generator ( 1 ), hollow ring. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß eine Regelvorrich­ tung (11) zur Einstellung des Gasdruckes im Innern des Hohlkörpers (8) im Sinne der Erzielung eines vorbestimm­ ten Flüssigkeitsdruckes vorhanden ist.3. Apparatus according to claim 1 or 2, characterized in that a Regelvorrich device ( 11 ) for adjusting the gas pressure inside the hollow body ( 8 ) in the sense of achieving a predetermined th liquid pressure is present.
DE19853536073 1985-10-09 1985-10-09 Device for crushing calculi Ceased DE3536073A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853536073 DE3536073A1 (en) 1985-10-09 1985-10-09 Device for crushing calculi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853536073 DE3536073A1 (en) 1985-10-09 1985-10-09 Device for crushing calculi

Publications (1)

Publication Number Publication Date
DE3536073A1 true DE3536073A1 (en) 1987-04-09

Family

ID=6283195

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853536073 Ceased DE3536073A1 (en) 1985-10-09 1985-10-09 Device for crushing calculi

Country Status (1)

Country Link
DE (1) DE3536073A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3720826C1 (en) * 1987-06-24 1988-12-22 Dornier Medizintechnik Device for the breath-triggered therapeutic treatment of living beings with shock waves
EP0336220A1 (en) * 1988-04-02 1989-10-11 Dornier Medizintechnik Gmbh Water circulation for a lithotripter
DE3926380A1 (en) * 1989-08-10 1991-02-14 Dornier Medizintechnik Liq. circulation system for lithotriptor - has mechanism for automatically filling system and keeping it topped up
DE4118443A1 (en) * 1991-06-05 1992-12-10 Siemens Ag ACOUSTIC PRESSURE PULSE GENERATOR

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2418631A1 (en) * 1974-04-18 1975-10-30 Dornier System Gmbh HEART STIMULATION DEVICE
US4237701A (en) * 1977-12-23 1980-12-09 Borsig Gmbh Method of and apparatus for improving the energy consumption of absorption cooling plants
DE3220751A1 (en) * 1982-06-02 1983-12-08 Jörg Dr. 8022 Grünwald Schüller Device for crushing concrements, especially renal calculi, in living human or animal bodies

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2418631A1 (en) * 1974-04-18 1975-10-30 Dornier System Gmbh HEART STIMULATION DEVICE
US4237701A (en) * 1977-12-23 1980-12-09 Borsig Gmbh Method of and apparatus for improving the energy consumption of absorption cooling plants
DE3220751A1 (en) * 1982-06-02 1983-12-08 Jörg Dr. 8022 Grünwald Schüller Device for crushing concrements, especially renal calculi, in living human or animal bodies

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3720826C1 (en) * 1987-06-24 1988-12-22 Dornier Medizintechnik Device for the breath-triggered therapeutic treatment of living beings with shock waves
EP0336220A1 (en) * 1988-04-02 1989-10-11 Dornier Medizintechnik Gmbh Water circulation for a lithotripter
DE3811316A1 (en) * 1988-04-02 1989-10-12 Dornier Medizintechnik WATER CIRCUIT OF A LITHOTRIPTER
DE3926380A1 (en) * 1989-08-10 1991-02-14 Dornier Medizintechnik Liq. circulation system for lithotriptor - has mechanism for automatically filling system and keeping it topped up
DE4118443A1 (en) * 1991-06-05 1992-12-10 Siemens Ag ACOUSTIC PRESSURE PULSE GENERATOR
US5222483A (en) * 1991-06-05 1993-06-29 Siemens Aktiengesellschaft Acoustic pressure pulse generator
DE4118443C2 (en) * 1991-06-05 2000-04-06 Siemens Ag Acoustic pressure pulse generator

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8110 Request for examination paragraph 44
8131 Rejection