DE2324658B2 - PROBE FOR COAGULATING BODY TISSUE - Google Patents

PROBE FOR COAGULATING BODY TISSUE

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Publication number
DE2324658B2
DE2324658B2 DE19732324658 DE2324658A DE2324658B2 DE 2324658 B2 DE2324658 B2 DE 2324658B2 DE 19732324658 DE19732324658 DE 19732324658 DE 2324658 A DE2324658 A DE 2324658A DE 2324658 B2 DE2324658 B2 DE 2324658B2
Authority
DE
Germany
Prior art keywords
insulating body
probe
electrodes
electrode
hemispherical
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.)
Withdrawn
Application number
DE19732324658
Other languages
German (de)
Other versions
DE2324658A1 (en
Inventor
Siegfried 7134 Knittlingen Hiltebrandt
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.)
Richard Wolf GmbH
Original Assignee
Richard Wolf 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 Richard Wolf GmbH filed Critical Richard Wolf GmbH
Priority to DE19732324658 priority Critical patent/DE2324658B2/en
Priority to GB2114474A priority patent/GB1461809A/en
Priority to GB1311576A priority patent/GB1461810A/en
Priority to US470010A priority patent/US3920021A/en
Publication of DE2324658A1 publication Critical patent/DE2324658A1/en
Publication of DE2324658B2 publication Critical patent/DE2324658B2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1485—Probes or electrodes therefor having a short rigid shaft for accessing the inner body through natural openings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1442—Probes having pivoting end effectors, e.g. forceps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/30—Surgical pincettes without pivotal connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1402—Probes for open surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00184—Moving parts
    • A61B2018/00196—Moving parts reciprocating lengthwise

Description

4040

Die Erfindung bezieht sich auf eine Sonde zum Koagulieren von Körpergewebe, bestehend aus zwei an die Pole einer HF-Stromquelle anzuschließenden, durch einen Isolierkörper voneinander getrennten, im distalen Endbereich eines Sondenschaftes vorgesehenen Elektroden, die mit dem Isolierkörper einen Zylinder mit halbkugeligem distalem Abschluß bilden.The invention relates to a probe for coagulating body tissue, consisting of two the poles of an HF power source to be connected, separated from one another by an insulating body, in the distal End of a probe shaft provided electrodes, which with the insulating body with a cylinder form hemispherical distal termination.

Um bei der Koagulation von Körpergewebe unkontrollierbare Stromübergänge bei der sogenannten monopolaren H F-Koagulation zwischen einer kleinflächigen Elektrode und einer großflächigen Massenelektrode zu vermeiden, ist man schon dazu übergegangen, die beiden Elektroden gleicher Fläche am distalen Ende einer Koagulationssonde durch eine Isolierung voneinander getrennt anzuordnen und an die Pole einer HF-Stromquelle anzuschließen, um dadurch kurze Strompfade zwischen den Elektroden und eine direkte Koagulation zwischen ihnen zu erreichen.In order to avoid uncontrollable current transitions during the coagulation of body tissue in the so-called monopolar H F coagulation between a small-area electrode and a large-area ground electrode To avoid this, one has already gone over to using the two electrodes of the same area at the distal end a coagulation probe separated from each other by insulation and to the poles of a Connect an HF power source, thereby short current paths between the electrodes and a direct one To achieve coagulation between them.

Man ist dabei z.B. nach der US-PS 19 83 669 so vorgegangen, daß zwei schraubenförmig gewundene Drähte mit einer Isolierschicht zwischen sich die Elektroden am distalen Sondenende bilden.For example, according to US Pat. No. 19 83 669, the procedure was such that two helically wound Wires with an insulating layer between them form the electrodes at the distal end of the probe.

Dadurch können auf der ganzen Länge des Sondenkopfes Stromübergänge zwischen den Elektroden und damit an nicht gewünschten Körperstellen auftreten, so daß dadurch keine gezielte KoagulationThis enables current transitions between the electrodes along the entire length of the probe head and thus occur at unwanted parts of the body, so that no targeted coagulation

durchführbar ist.is feasible.

Man hat nach der US-PS 16 41 184 den aus Isoliermaterial bestehenden Sondenkopf schon zylindrisch mit halbkugeligem distalen Abschluß ausgebildet und in den Umfang des Kopfes zwei schraubenförmig über die Kopflänge verlaufende Elektroden eingebettet, um durch diese Formgebung Verletzungen beim Einführen der Sonde in Körperhöhlen zu vermeiden. Auch in diesem Fall sind keine gezielten Koagulationen durchführbar, da die Berührungsflächen am Körpergewebe in der Körperhöhle nicht genau genug zu bestimmen sind.According to US-PS 16 41 184, the probe head made of insulating material is already cylindrical formed with hemispherical distal end and two helical in the circumference of the head Electrodes running along the length of the head are embedded in order to avoid injuries due to this shape Avoid inserting the probe into body cavities. In this case, too, there are no specific coagulations feasible because the contact surfaces on the body tissue in the body cavity are not accurate enough are determined.

In den bekannten Fällen ist auch die Herstellung der Koagulationssonden besonders schwierig und ungenau und man ist nicht in der Lage, Elektroden unterschiedlicher Flächen gegeneinander auszutauschen.In the known cases, the production of the coagulation probes is particularly difficult and imprecise and one is not able to exchange electrodes of different areas with one another.

Die Aufgabe der Erfindung besteht darin, bei Koagulationssonden der eingangs erwähnten Art mit zwei an die Pole einer HF-Stromquelle anzuschließenden Elektroden eine einfache Serienfertigung und genaue Montage mit gezielter Koagulation zu ermöglichen. The object of the invention is to provide coagulation probes of the type mentioned at the outset two electrodes to be connected to the poles of an HF power source a simple series production and enable precise assembly with targeted coagulation.

Dies wird nach der Erfindung dadurch gelöst, daß die eine Elektrode als Ringelektrode ausgebildet ist und mit einem ringförmigen Isolierkörper und einer halbkugeligen Elektrode mit zapfenförmigen Ansätzen zusammensetzbar ist oder dadurch, daß der halbkugelige distale Abschluß aus einem Isolierkörper besteht und beide Elektroden als Ringelektroden mit einem ringförmigen Isolierkörper zwischen sich ausgebildet sind und alle Teile durch zapfenförmige Ansätze zusammensetzbar sind.This is achieved according to the invention in that one electrode is designed as a ring electrode and with an annular insulating body and a hemispherical electrode with cone-shaped attachments can be assembled is or in that the hemispherical distal termination consists of an insulating body and Both electrodes are designed as ring electrodes with a ring-shaped insulating body between them and all parts can be put together by means of peg-shaped approaches.

Damit hat man es in der Hand, die beiden Elektroden mit der Isolierung in Serie herzustellen und in einfacher Weise exakt zu montieren. Dabei ist es möglich, die Elektrodenflächen und damit den Grad der Koagulation im Bereich der Elektroden unterschiedlich zu machen, so daß dadurch je nach Wunsch die Stromdichte an einer Elektrode größer ist als an der anderen Elektrode, so daß damit die Möglichkeit besteht, die eine oder andere Elektrode mehr oder weniger stark in den Koagulationsvorgang einzubeziehen, womit genau gezielte Koagulationen durchführbar sind. Zusätzlich wird durch die Erfindung erreicht, daß Verletzungen in der Körperhöhle beim Einführen der Sonde in bekannter Weise vermieden werden und daß punktförmige Koagulationen durch die verhältnismäßig kleinen Durchmesser und den geringen Elektrodenabstand durchführbar sind, oder es können kleinste zu koagulierende Gewebeteile mit den beiden Elektroden in Koniakt gebracht werden, um z. B. unter hoher Stromdichte Blutungen im Koagulieren von Eileitern, bei der Leberbiopsie od. dgl. zu stillen.So you have it in hand to manufacture the two electrodes with the insulation in series and in a simpler way Way to assemble exactly. It is possible to determine the electrode surfaces and thus the degree of coagulation to make different in the area of the electrodes, so that the current density can be adjusted as desired one electrode is larger than the other electrode, so that there is the possibility of one or to involve other electrodes more or less strongly in the coagulation process, with what exactly targeted coagulations can be carried out. In addition, it is achieved by the invention that injuries in the body cavity when inserting the probe can be avoided in a known manner and that punctiform Coagulation due to the relatively small diameter and the small distance between the electrodes can be carried out, or the smallest pieces of tissue to be coagulated can be carried out with the two electrodes be brought into contact with z. B. bleeding in the coagulation of fallopian tubes under high current density, with the liver biopsy or the like to breastfeed.

In der Zeichnung sind einige Ausführungsbeispiele der Erfindung dargestellt und werden nachstehend beschrieben.Some exemplary embodiments of the invention are shown in the drawing and are described below described.

Es zeigt:It shows:

F i g. 1 einen Längsschnitt durch eine Koagulationsvorrichtung nach der Erfindung,F i g. 1 shows a longitudinal section through a coagulation device according to the invention,

F i g. 7. einen Schnitt durch das distale Ende einer weiteren Vorrichtung,F i g. 7. a section through the distal end of another device,

Fig.3; einen Schnitt durch das distale Ende einer anderen möglichen AusführungsformFig. 3; a section through the distal end of a other possible embodiment

Die Vorrichtung besteht aus einem flexiblen oder starren Schaft 1, durch den die beiden elektrischen Versorgungsleitungen 2, 3 verlaufen, die distalseitig jeweils mit den beiden Elektroden und proxima'seitig mit den metallischen Steckerpolen 4 und 5 durch LötungThe device consists of a flexible or rigid shaft 1 through which the two electrical Supply lines 2, 3 run, each with the two electrodes on the distal side and on the proximal side with the metallic connector poles 4 and 5 by soldering

oder auf andere Weise verbunden sind. Zwischen den Steckerpolen befindet sich eine Buchse 6 aus isolierendem Kunststoff. Der Schaft 1 faßt eng über eine Absetzung des äußeren Steckerpols 4 und kann mit diesem durch Verkleben, Aufschrumpfen oder auf andere beliebige Weise verbunden sein. Die Steckerteile 4, 5 und 6 sind über die in der Zeichnung angedeuteten Gewinde fest miteinander verschraubt und bilden einen Stecker, der in einen entsprechenden Anschluß des HF-Versorgungsgerätes bzw. in einen von diesem Gerät kommende Steckdose gesteckt werden kann. Ie nach Anschlußart kann der Stecker auch abweichend von der Darstellung nach Fig. 1 als negativer Steckeranschluß ausgebildet sein. Im übrigen können entsprechende Stecker- und Anschlußteile auch für die ,5 in den übrigen Darstellungen gezeigten Vorrichtungen verwendet werden, so daß sich diesbezüglich eine Wiederholung der Darstellung und Beschreibung erübrigt.or otherwise connected. A socket 6 made of insulating plastic is located between the connector poles. The shaft 1 grips tightly over an offset of the outer connector pole 4 and can be connected to this by gluing, shrinking or in any other arbitrary manner. The plug parts 4, 5 and 6 are firmly screwed together via the thread indicated in the drawing and form a plug that can be plugged into a corresponding connection of the HF supply device or into a socket coming from this device. Depending on the type of connection, the plug can also be designed as a negative plug connection, different from the representation according to FIG. 1. In other corresponding connector and connecting parts can be also used for, 5 shown in the other illustrations devices, so that in this respect is not necessary to repeat the illustration and description.

Gemäß F i g. 1 ist das äußerste distale und aus 2Ü Kunststoff hergestellte Vorrichtungsendte:' 7 unter anderem zur Vermeidung von Gewebeverletzungen ballig geformt. Die beiden Elektroden 8 und 9 sind als Ringkörper ausgebildet, die durch ein Distanzstück 10 aus Isoliermaterial auf Abstand gehalten werden. Weiterhin weisen das Distanzstück und die beiden Elektroden entsprechend der Darstellung sich gegenseitig abstützende und ineinandergreifende Ansätze und Schultern auf, wodurch sie in ihrer Einbaulage relativ zur Vorrichtungslängsachse 11 fixiert werden. Das Endteil 7 ist mit einem Gewindeansatz 7a in eine Gewindebohrung des Distanzstücks 10 geschraubt, während das Distanzstück wiederum mit einem Gewindesatz 10a in eine Gewindebohrung der Elektrode 9 geschraubt ist, die am Umfang abgesetzt ist, um das hohle distale Ende des Schaftes 1 über die Absetzung schieben zu können. Eine sichere Verbindung zwischen den Teilen 1 und 9 kann durch zusätzliche Anwendung eines Klebemittels gewährleistet werden.According to FIG. 1 is the outermost distal device end made of plastic: 7 has a convex shape to avoid tissue injuries, among other things. The two electrodes 8 and 9 are designed as ring bodies, which are kept at a distance by a spacer 10 made of insulating material. Furthermore, according to the illustration, the spacer and the two electrodes have mutually supporting and interlocking shoulders and shoulders, as a result of which they are fixed in their installation position relative to the device longitudinal axis 11. The end part 7 is screwed with a threaded shoulder 7a into a threaded bore of the spacer 10, while the spacer is in turn screwed with a threaded set 10a into a threaded bore of the electrode 9, which is stepped on the circumference, around the hollow distal end of the shaft 1 over the step to be able to push. A secure connection between parts 1 and 9 can be ensured by additionally using an adhesive.

Die jeweils an das zu koagulierende Körpergewebe anzulegenden Bereiche der Elektroden 8 und 9 stellen sich als Zylinderflächen 8a, 9a dar, deren Achse mit der Vorrichtungsachse 11 zusammenfällt. Man erkennt, daß die von den Abmessungen des Distanzstücks 10 bestimmte Strecke zwischen den beiden Elektroden kurz ist, was zu den eingangs erwähnten Vorteilen führt. Der Durchmesser des distalen Vorrichtungskopfes und damit der Elektroden kann, wenn die Vorrichtung als Sonde in Verbindung mit einem Endoskop verwendet wird, beispielsweise zwei bis fünf mm betragen, obwohl diese Angabe keine Bindung an die erwähnten Maße beinhalten soli. Deutlich werden soll hierdurch nur, daß der wirksame Abstand zwischen den Elektrodenflächen 8a und 9a tatsächlich äußerst gering gehalten werden kann, wenn man dieses wünscht.Place the areas of the electrodes 8 and 9 to be applied to the body tissue to be coagulated represent themselves as cylinder surfaces 8a, 9a, the axis of which coincides with the device axis 11. You can see that the distance determined by the dimensions of the spacer 10 between the two electrodes is short, which leads to the advantages mentioned at the beginning. The diameter of the distal device head and thus the electrodes can be used when the device is used as a probe in conjunction with an endoscope will be, for example, two to five mm, although this information is not bound by the dimensions mentioned contain soli. This should only make it clear that the effective distance between the electrode surfaces 8a and 9a can actually be kept extremely low, if this is so desired.

Bei den in den F i g. 2 und 3 gezeigten Ausführungsformen ist übereinstimmend die eine, das distale Vorrichtungsende bildende Elektrode 12 bzw. 13 als balliger Kopf bzw. im wesentlichen halbkugelförmig ausgebildet, während die andere Elektrode 14 bzw. 15 wieder durch einen Ringkörper dargestellt wird, dessen an das Körpergewebe anzulegender Bereich wie beim Ausführungsbeispie! nach F i g. 1 eine Zylinderfiäche hat, deren Achse mit der Vorrichtungslängsachse 11 zusammenfällt. Beide Elektroden 12, 14 bzw. 13, 15 werden durch ein Distanzstück 16 bzw. 17 aus Isoliermaterial auf Abstand gehalten und stehen im übrigen mit dem Distanzstück über verschraubte und den Zeichnungen zu entnehmende Gewinde in Verbindung. In the case of the FIGS. The embodiments shown in FIGS. 2 and 3 correspond to one, the distal Device end forming electrode 12 or 13 as a spherical head or essentially hemispherical formed, while the other electrode 14 or 15 is again represented by an annular body whose Area to be applied to the body tissue as in the example! according to FIG. 1 a cylinder surface whose axis coincides with the longitudinal axis 11 of the device. Both electrodes 12, 14 or 13, 15 are held at a distance by a spacer 16 or 17 made of insulating material and are in the the rest in connection with the spacer via screwed threads that can be found in the drawings.

Gemäß Fig. 2 ist die ballige Elektrode 12 mit einem Gewindeansatz in die Gewindebohrung des Distanzstückes 16 eingeschraubt, während die Ringelektrode 14 auf eine Absetzung des Distanzstückes geschoben ist. Weiterhin ist das Distanzstück in ein Isolierteil 18 geschraubt, das mit dem Schaft 1 dadurch in Verbindung gebracht ist, daß das distale hohle Schattende über eine Absetzung des Isolierteils 18 geschoben und dort mit diesem mittels eines Klebers od. dgl. verbunden ist.According to Fig. 2, the spherical electrode 12 is with a Threaded attachment screwed into the threaded hole of the spacer 16, while the ring electrode 14 is pushed onto a deposition of the spacer. Furthermore, the spacer is in an insulating part 18 screwed, which is brought into connection with the shaft 1 in that the distal hollow shadow end over a Deposition of the insulating part 18 pushed and there od with this by means of an adhesive. The like. Is connected.

Bei der Ausführung nach F i g. 3 ist die als Ringkörper ausgebildete Elektrode 15 am Außenumfang abgesetzt, während das distale Schaftende auf diese Absetzung geschoben und dort durch ein Klebemittel fixiert ist.In the embodiment according to FIG. 3, the electrode 15, designed as a ring body, is offset on the outer circumference, while the distal end of the shaft is pushed onto this offset and fixed there by an adhesive.

Abschließend sei noch darauf hingewiesen, daß die sowohl zur Behandlung vor Menschen als auch von Tieren geeignete Vorrichtung einerseits als Sonde verwendet werden kann, und zwar in Kombination mit Endoskopen. Das Endoskop weist zu diesem Zweck einen Sondenkanal auf, durch den das Gerät vom proximalen Ende aus eingeführt und durch den Endoskopschaft hindurch an den Behandlungsort geführt werden kann. Andererseits kann man die Vorrichtung natürlich auch so ausbilden, daß sie unabhängig von Endoskopen verwendbar ist, indem sie mit dem distalen Ende direkt an den Behandlungsort gebracht wird. In diesem Falle wird man den Vorrichtungsschaft relativ starr ausführen können. Dieser Weg schließt natürlich nicht die Möglichkeit aus, daß man den Koagulationsvorgang mit einem Endoskop beobachten kann, das durch einen zweiten Einstich in die Körperhöhle eingeführt wird.Finally, it should be noted that the treatment both in front of people and by Animals suitable device on the one hand can be used as a probe, in combination with Endoscopes. The endoscope has a probe channel for this purpose, through which the device from proximal end and inserted through the endoscope shaft to the treatment site can be performed. On the other hand, you can of course train the device so that it can be used independently of endoscopes by bringing the distal end directly to the treatment site is brought. In this case, the device shaft will be able to be made relatively rigid. Of course, this approach does not rule out the possibility of the coagulation process being carried out with an endoscope can observe, which is inserted through a second puncture into the body cavity.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (4)

Patentansprüche:Patent claims: 1. Sonde zum Koagulieren von Körpergewebe, bestehend aus zwei an die Pole einer HF-Stromquelle anzuschließenden, durch einen Isolierkörper voneinander getrennten, im distalen Endbereich eines Sondenschaftes vorgesehenen Elektroden, die mit dem Isolierkörper einen Zylinder mit halbkugeligem distalem Abschluß bilden, dadurch gekennzeichnet, daß eine Elektrode als Ringelektrode (14, 15) ausgebildet ist und mit einem ringförmigen Isolierköper (16, 17) und einer halbkugeligen Elektrode (12,13) mit zapfenförmigen Ansätzen (18,18a^zusammensetzbar ist.1. Probe for coagulating body tissue, consisting of two connected to the poles of an HF power source to be connected, separated from one another by an insulating body, in the distal end area a probe shaft provided electrodes, which with the insulating body a cylinder with hemispherical Form distal termination, characterized in that an electrode as a ring electrode (14, 15) is formed and with an annular insulating body (16, 17) and one hemispherical electrode (12,13) with peg-shaped projections (18,18a ^ can be assembled. 2. Sonde zum Koagulieren von Körpergewebe, bestehend aus zwei an die Pole einer HF-Stromquelle anzuschließenden, durch einen Isolierkörper voneinander getrennten, im distalen Endbereich eines Sondenschaftes vorgesehenen Elektroden, die mit dem Isolierkörper einen Zylinder mit halbkugeligern distalem Abschluß bilden, dadurch gekennzeichnet, daß der halbkugelige distale Abschluß aus einem Isolierkörper (7) besteht, und beide Elektroden als Ringelektroden (8,9) mit einem ringförmigen Isolierkörper (10) zwischen sich ausgebildet sind und alle Teile durch zapfenförmige Ansätze (7a, iOa) zusammensetzbar sind.2. Probe for coagulating body tissue, consisting of two electrodes to be connected to the poles of an HF power source, separated by an insulating body, provided in the distal end region of a probe shaft, which form a cylinder with hemispherical distal end with the insulating body, characterized in that the hemispherical distal termination consists of an insulating body (7), and both electrodes are designed as ring electrodes (8,9) with an annular insulating body (10) between them and all parts can be put together by peg-shaped attachments (7a, iOa) . 3. Sonde nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die zapfenförmigen Ansätze Gewindezapfen sind.3. Probe according to claim 1 or 2, characterized in that the pin-shaped lugs Threaded studs are. 4. Sonde nach Anspruch 1 und 3, dadurch gekennzeichnet, daß die halbkugelige Elektrode (12) mit einem Gewindezapfen in eine Gewindebohrung des Isolierkörpers (16) geschraubt ist, daß die Ringelektrode (14) auf eine Abstufung des Isolierkörpers (16) geschoben ist und der Isolierkörper in einen Isolierteil (18) geschraubt ist, der mit einer Abstufung in das distale Schaftende eingesetzt ist.4. Probe according to claim 1 and 3, characterized in that the hemispherical electrode (12) is screwed with a threaded pin into a threaded hole in the insulating body (16) that the Ring electrode (14) is pushed onto a step of the insulating body (16) and the insulating body in an insulating part (18) is screwed, which is inserted with a step into the distal end of the shaft.
DE19732324658 1973-05-16 1973-05-16 PROBE FOR COAGULATING BODY TISSUE Withdrawn DE2324658B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19732324658 DE2324658B2 (en) 1973-05-16 1973-05-16 PROBE FOR COAGULATING BODY TISSUE
GB2114474A GB1461809A (en) 1973-05-16 1974-05-13 Coagulating devices
GB1311576A GB1461810A (en) 1973-05-16 1974-05-13 Device for coagulating areas of body tissue by means of high frequency current
US470010A US3920021A (en) 1973-05-16 1974-05-15 Coagulating devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732324658 DE2324658B2 (en) 1973-05-16 1973-05-16 PROBE FOR COAGULATING BODY TISSUE

Publications (2)

Publication Number Publication Date
DE2324658A1 DE2324658A1 (en) 1974-12-05
DE2324658B2 true DE2324658B2 (en) 1977-06-30

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DE19732324658 Withdrawn DE2324658B2 (en) 1973-05-16 1973-05-16 PROBE FOR COAGULATING BODY TISSUE

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US (1) US3920021A (en)
DE (1) DE2324658B2 (en)
GB (2) GB1461810A (en)

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US4043342A (en) * 1974-08-28 1977-08-23 Valleylab, Inc. Electrosurgical devices having sesquipolar electrode structures incorporated therein
CH587664A5 (en) * 1974-09-05 1977-05-13 Fischer Fa F L
NL7504321A (en) * 1975-04-11 1976-10-13 Philips Nv DEVICE FOR STERILIZATION BY TRANSUTERINE TUBACOAGULATION.
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GB1286075A (en) * 1968-09-20 1972-08-16 Dietmar Rudolf Garbe Incontinence control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3916161A1 (en) * 1989-05-18 1990-11-22 Wolf Gmbh Richard ELECTROSURGICAL INSTRUMENT

Also Published As

Publication number Publication date
US3920021A (en) 1975-11-18
GB1461809A (en) 1977-01-19
GB1461810A (en) 1977-01-19
DE2324658A1 (en) 1974-12-05

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