DE2415263A1 - Surgical H.F. coagulation probe has electrode tongs - with exposed ends of insulated conductors forming tong-jaws - Google Patents

Surgical H.F. coagulation probe has electrode tongs - with exposed ends of insulated conductors forming tong-jaws

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Publication number
DE2415263A1
DE2415263A1 DE2415263A DE2415263A DE2415263A1 DE 2415263 A1 DE2415263 A1 DE 2415263A1 DE 2415263 A DE2415263 A DE 2415263A DE 2415263 A DE2415263 A DE 2415263A DE 2415263 A1 DE2415263 A1 DE 2415263A1
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DE
Germany
Prior art keywords
jaws
tube
electrode
coagulation probe
probe according
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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.)
Pending
Application number
DE2415263A
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German (de)
Inventor
Roland Haeberlen
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Aesculap Werke AG
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Aesculap Werke AG
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Publication date
Application filed by Aesculap Werke AG filed Critical Aesculap Werke AG
Priority to DE2415263A priority Critical patent/DE2415263A1/en
Publication of DE2415263A1 publication Critical patent/DE2415263A1/en
Pending legal-status Critical Current

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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
    • A61B18/1442—Probes having pivoting end effectors, e.g. forceps
    • 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
    • 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
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00559—Female reproductive organs
    • 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
    • A61B18/1206—Generators therefor
    • A61B2018/1246—Generators therefor characterised by the output polarity
    • A61B2018/126—Generators therefor characterised by the output polarity bipolar

Abstract

The probe has electrode-tongs at a first end, and an operating handle for operating the tongs at a second end, of a tube, which is electrically insulated, externally, at least, and in which a conductor for the passage of current to the jaws of the tongs is located, which is axially movable in one direction against a restoring force, for the opening closing of the tongs. Two mutually insulated conductors are provided, the free ends, outside the tub, of which form the two jaws of bipolar electrode-tongs. The probe is suitable for carrying out coagulation in a desired, narrowly defined place.

Description

Chirurgische HF-Koagulationssonde Die Erfindung betrifft eine chirurgische HF-Koagulationssonde mit einer Elektrodenzange an -einem-ersten Ende und einem Betätigungsgriff zum Betätigen der Elektrodenzange am zweiten Ende eines mindestens nach außen elektrisch isolierten Rohres, in dem zum Zuleiten von elektrischem Strom an die Backen der Elektrodenzange ein Leiter angeordnet ist, der zum öffnen und Schließen der Elektrodenzange vom Betätigungsgriff in einer Richtung gegen eine Rückstellkraft axial verschiebbar ist.Surgical HF coagulation probe The invention relates to a surgical HF coagulation probe with electrode forceps on -a-first End and an operating handle for operating the electrode clamp at the second end at least one tube, which is electrically insulated to the outside, in which to feed electric current is placed on the jaws of the electrode clamps, the one to open and close the electrode clamp from the operating handle in one direction is axially displaceable against a restoring force.

Bei einer bekannten Soagulationssonde der oben genannten Art für die Eileitersterilisation ist der drahtr-oder stabförmige elektrische Leiter am ersten Ende des Rohres durch einen Diametralschnitt in zwei federnde, über den Umfang des Rohres auseinandergebogene Enden aufgeteilt, die die Backen der monopolaren Elektrodenzange bilden und die beim axialen Einziehen des Leiters zum Schließen der Elektrodenzange aneinanderbewegt werden.In a known soagulation probe of the type mentioned above for the Fallopian tube sterilization is the wire- or rod-shaped electrical conductor at first End of the tube through a diametrical cut into two resilient, over the circumference of the The tube's bent-apart ends split the jaws of the monopolar electrode forceps form and the axial retraction of the conductor to close the electrode clamp be moved together.

Dadurch, daß der andere Pol dieser bekannten monopolaren HF-Koagulationssonde vom Operationsgebiet entfernt am Körper des Patienten angreift, kann die Koagulation an einer treten unvorhersehbaren Stelle ein-/nämiich dort, wo die stärkste Erwärmung beim Durchfluß des elektrischen Stromes eintritt. Dies kann z.B. an einer Verengung des Eileiters der Fall sein, die in einem Abstand von der Koagulationssonde liegt. Damit der Operateur feststellen kann, ob die Koagulation mit Erfolg durchgeführt ist oder nicht, ist es sehr wichtig, daß die Koagulation an der vom Operateur gewünschten Stelle eintritt, die er dann durch ein Endoskop betrachten kann. Hierbei werden das Endoskop und die Koagulationssonde durch zwei verschiedene Trokare in die Bauchhöhle eingeführt. Da jedoch bei der bekannten HF-Koagulationssonde die Koagulationsstelle nicht immer voraussehbar ist, kann sie auch nicht immer beobachtet werden, -so daß der Operateur beim Koagulieren mit der bekannten HF-Koagulationssonde in vielen Fällen den Erfolg oder Mißerfolg der Operation nicht beobachten kann.Because the other pole of this known monopolar HF coagulation probe attacks the patient's body away from the surgical site, coagulation can occur occur at an unpredictable point, namely there, where the strongest warming occurs occurs when the electric current flows through it. This can be due to a narrowing, for example of the fallopian tube, which is at a distance from the coagulation probe. So that the surgeon can determine whether the coagulation has been carried out successfully or not, it is very important that the coagulation is at the rate desired by the surgeon That he can then look at through an endoscope. Here will be the endoscope and the coagulation probe through two different trocars into the abdominal cavity introduced. However, as in the known HF coagulation probe, the coagulation point cannot always be foreseen, it cannot always be observed, so that the surgeon during coagulation with the well-known HF coagulation probe in many Cases cannot observe the success or failure of the operation.

Der Erfindung liegt die Aufgabe zu Grunde, eine chirurgische HF-Koagulationssonde mit einer Elektrodenzange, insbesondere für die Eileitersterilisation aber auch für andere chirurgische Zwecke zu schaffen, mittels deren die Koagulation an einer gewünschten eng begrenzten Stelle durchführbar ist.The invention is based on the object of a surgical HF coagulation probe but also with electrode forceps, especially for fallopian tube sterilization for other surgical purposes, by means of which coagulation on a desired narrowly limited place is feasible.

Diese Aufgabe ist bei einer chirurgischen HF-Koagulationssonde der eingangs genannten Art gemäß der Erfindung dadurch gelöst, daß zwei voneinander elektrisch isolierte Leiter vorhanden sind, deren außerhalb des Rohres befindlichç freien Enden die beiden Backen einer bipolaren Elektrodenzange bilden. Dadurch wird eine durch ein Trokar in den Körper eines Patienten einführbare HF-Koagulationssonde geschaffen, mittels deren die Koagulation an einer ganz bestimmten, durch ein zweites Trokar mittels eines Endoskopes beobachtbaren Stelle durchgeführt werden kann, Weil bei dieser bipolaren Ausbildung dieser Sonde die Koagulation unmittelbar zwischen den beiden Backen der Elektrodenzange erfolgt.In the case of a surgical HF coagulation probe, this task is the initially mentioned type solved according to the invention in that two of each other electrically insulated conductors are present, whose outside of the pipe is located free ends form the two jaws of a bipolar electrode forceps. This will an RF coagulation probe insertable into a patient's body through a trocar created, by means of which the coagulation on a very specific one, through a second Trocar can be performed using an endoscope observable site because with this bipolar design of this probe, the coagulation immediately between the two jaws of the electrode clamp.

Die beiden Leiter können im Rohr angeordnet sein, das in diesem Fall zweckmäßigerweise aus einem Isolierstoff, z.B. aus Nylon hergestellt werden kann. Es kann aber auch vorgesehen sein, daß als der eine Leiter und als Rohr ein nach außen isoliertes Metallrohr vorgesehen ist, dessen freies Ende eine Verlängerung aufweist, die den feststehenden Backen der -Elektrodenzange bildet. In einem solchen Fall ist dann der zweite Leiter vom Metall rohr isoliert und in diesem angeordnet. Das aus dem ersten Ende des Metallrohres herausragende Ende dieses zweiten Leiters bildet dann den zweiten Backen der Elektrodenzange.The two conductors can be arranged in the tube, which in this case can expediently be made of an insulating material such as nylon. But it can also be provided that as a conductor and a tube after externally insulated metal tube is provided, the free end of which is an extension which forms the fixed jaws of the electrode forceps. In such a Case is then the second conductor isolated from the metal pipe and arranged in this. The end of this second conductor protruding from the first end of the metal tube then forms the second jaw of the electrode clamp.

Die Erfindung ist in der folgenden Beschreibung von in den Zeichnungen dargestellten Ausführungsbeispielen von erfindungsgemäßen, - für die Eileitersterilisation vorgesehenen chirurgischen HF-Koagulationssonden im einzelnen erläutert.The invention is illustrated in the following description of the drawings illustrated embodiments of the invention, - for fallopian tube sterilization provided surgical RF coagulation probes explained in detail.

Es zeigen: r-Fig. 1 eine teilweise im Schnitt dargestellte Seitenansicht eines ersten Ausführungsbeispieles; Fig. 2 einen Schnitt nach der Linie II - II in Fig. 1; Fig. 3 und 4 vergrößert dargestellte Schnitte durch das erste Ende des Rohres und der Elektrodenzange eines zweiten Ausführungsbeispieles bei offener bzw. geschlossener Elektrodenzange; Fig. 5 einen Schnitt nach der Linie V - V in Fig. 3; Fig. 6 eine der Fig. 4 entsprechende Darstellung eines dritten Ausführungsbeispieles.It shows: r-Fig. 1 is a partially sectioned side view a first embodiment; Fig. 2 is a section along the line II - II in Fig. 1; Fig. 3 and 4 enlarged sections through the first end of the Tube and the electrode clamp of a second embodiment with open or closed electrode forceps; FIG. 5 shows a section along the line V - V in FIG. 3; 6 shows an illustration of a third exemplary embodiment corresponding to FIG. 4.

Das in den Fig. 1 und 2 dargestellte erste Ausführungsbeispiel einer für die Eileitersterilisation vorgesehenen chirurgischen HF-Koagulationssonde weist eine Elektrodenzange 11 an einem ersten Ende 12 und einen Betätigungsgriff 13 zum Betätigen der Elektrodenzange 11 am zweiten Ende 14 eines Metallrohres 15 auf, das außen mit einer elektrischen Isolierschicht 16 versehen ist. Im Metallrohr 15 ist ein mit einer 17 Isolierhülleisolierter Leiter 18 angeordnet, der vom Betätigungsgriff 13 im Metallrohr 15 axial verschieblb2ar ist. Der äußerste Endabschnitt des aus dem ersten Ende/des Metallrohres herausragenden Endes des Leiters 18 ist abisoliert und hakenförmig gebogen und bildet dadurch den bewegbaren Backen 19 der Elektrodenzange 11. Das erste Ende 12 des Metallrohres weist eine draht- oder stabförmige Verlängerung 21 auf, deren äußerstes Ende als feststehender Backen 22 in der Schließstellung der Elektrodenzange 117den hakenförmigen bewegbaren Backen 19 eingreift und dort durch ein Isolierstück 23 in der Schließstellung im Abstand von dem Backen 19 gehalten wird, um dadurch einen Kurzschluß zu vermeiden.The first embodiment shown in FIGS. 1 and 2 Surgical HF coagulation probe intended for fallopian tube sterilization an electrode forceps 11 at a first end 12 and an operating handle 13 for Pressing the electrode tongs 11 at the second end 14 of a metal tube 15 that is provided with an electrical insulating layer 16 on the outside. In the metal tube 15 is a conductor 18 insulated with a 17 insulating sheath is arranged, from the operating handle 13 is axially verschieblb2ar in the metal tube 15. The extreme end portion of the out the end of the conductor 18 protruding from the first end / the metal tube is stripped and Curved hook-shaped and thereby forms the movable jaw 19 of the electrode tongs 11. The first end 12 of the metal tube has a wire or rod-shaped extension 21, the extreme end of which as a fixed jaw 22 in the closed position of the electrode forceps 117 the hook-shaped movable jaws 19 engages and there by an insulating piece 23 in the closed position at a distance is held by the jaw 19, thereby avoiding a short circuit.

Der Betätigungsgriff 13 weist zwei elektrisch leitende Bandfedern 24 und 25 auf. Die Band feder 24 ist durch auf ein Außengewinde des Metallrohres 15 aufgeschraubte hülsenförmige Muttern 26 mechanisch fest und elektrisch leitend mit dem Metallrohr 15 verbunden. Die Bandfeder 25 ist mit dem äußersten abisolierten Endabschnitt des aus dem zweiten Ende des Metallrohres 15 herausragenden Endes des Leiters 18 in bekannter Weise gelenkig verbunden. Die übrigen Teile der Bandfedern 24 und 25 sind nach außen isoliert. Ihre dem zweiten Ende 14 des Metallrohres abgekehrten Enden sind nahe aneinandergebogen und stecken in einem Isolierkörper 20, aus dem sie mit ihren abisolierten Endabschnitten herausragen, so daß dadurch der Isolierkörper 20 mit den Endabschnitten 27 einen Stecker für den Anschluß an eine elektrische Zuleitung bildet. Neben dem zweiten Ende 14 ist zwischen den Bandfedern 24 und 25 eine Feder 28 angeordnet, die die dem ersten Ende 14 des Rohres benachbarten Enden der Bandfedern 24 und 25 auseinanderdrückt und so die Elektrodenzange 11 in geschlossener Stellung hält. Bei einer abgewandelten Ausführungsform kann die Feder 28 weggelassen werden, da die Federkraft,um die Elektrodenzange geschlossen zu halten, auch von den Bandfedern 24 und 25 verursacht werden kann.The operating handle 13 has two electrically conductive ribbon springs 24 and 25 on. The band spring 24 is through to an external thread of the metal tube 15 screwed sleeve-shaped nuts 26 mechanically tight and electrically conductive connected to the metal pipe 15. The strip spring 25 is stripped to the extreme End portion of the protruding from the second end of the metal tube 15 end of the Head 18 articulated in a known manner. The remaining parts of the ribbon springs 24 and 25 are isolated from the outside. Your turned away from the second end 14 of the metal tube Ends are bent close to each other and stuck in an insulating body 20, from the they protrude with their stripped end portions, so that thereby the insulating body 20 with the end sections 27 a plug for connection to an electrical Forms supply line. Next to the second end 14 is between the ribbon springs 24 and 25 a spring 28 is arranged spanning the ends adjacent to the first end 14 of the tube the band springs 24 and 25 pushes apart and so the electrode clamp 11 in closed Holds position. In a modified embodiment, the spring 28 can be omitted as the spring force to keep the electrode clamp closed, also from the ribbon springs 24 and 25 can be caused.

Wie das in Fig. 1 strichpunktiert dargestellt ist, ist das aus dem Metallrohr 15 herausragende Ende des isolierten Leiters 18 so nach außen gebogen, daß es in die in Fig. 1 strichpunktiert dargestellte Stellung herausschwenkt, wenn die Bandfeder 25 gegen die Bandfeder 24 bewegt und dadurch der Leiter 18 im Metallrohr 15 axial in Fig. 1 nach unten verschoben wird. Entsprechend wird durch diese Biegung des herausragenden Endes des Leiters 18 erreicht, daß bei der in Fig. 1 nach oben gerichteten Verschiebung des Leiters 18 im Metallrohr 15 das aus dem ersten Ende 12 des Metallrohres herausragende Ende des Leiters 18 in die in Fig. 1 ausgezogen dargestellte Schließstellung geschwenkt und verschoben wird.As shown in phantom in Fig. 1, this is from the Metal pipe 15 protruding end of the insulated conductor 18 bent outward so that it swings out into the position shown in phantom in Fig. 1 when the band spring 25 moves against the band spring 24 and thereby the conductor 18 in the metal tube 15th is displaced axially in Fig. 1 downwards. This bend accordingly of the protruding end of the conductor 18 achieved that in Fig. 1 upwards directed displacement of the conductor 18 in the metal tube 15 from the first end 12 of the metal tube protruding end of the conductor 18 in the drawn out in FIG shown closed position is pivoted and shifted.

Bei einer Eileitersterilisation kann die dargestellte Koagulationssonde leicht durcheinenin die Bauchdecke der Patientin eingesetzten Trokar eingeführt werden. Durch ein Endoskop, das durch einen zweiten Trokar ebenfalls in die Bauchhöhle eingeführt wird, wird nun die Stelle des Eileiters vom Operateur beobachtet, die koaguliert werden soll. Diese Stelle kann nun mit der hakenförmigen Backe 19 der Elektrodenzange erfaßt werden, so lange die Zange durch Zusammendrücken der Bandfedern 24 und 25 geöffnet ist. Durch Schließen der Elektrodenzange 11 wird dann die gewünschte Stelle des Eileiters genau zwischen die beiden Backen 19 und 22 eingeführt, so daß beim anschließenden Einschalten des Koagulationsstromes die Koagulation an der gewünschten Stelle durchgeführt wird.In the case of fallopian tube sterilization, the shown coagulation probe easily inserted through a trocar inserted into the patient's abdominal wall will. Through an endoscope, which is also inserted into the abdominal cavity through a second trocar is inserted, the location of the fallopian tube is now observed by the surgeon, which is to be coagulated. This point can now with the hook-shaped jaw 19 of the Electrode pliers are grasped as long as the pliers by compressing the ribbon springs 24 and 25 is open. By closing the electrode clamps 11, the desired Place the fallopian tube exactly between the two jaws 19 and 22 so that when the coagulation current is subsequently switched on, the coagulation takes place at the desired one Place is carried out.

Bei dem in den Fig. 3 bis 5 dargestellten Ausführungsbeispiel sind diejenigen Teile, die dem Ausführungsbeispiel nach den Fig.l und 2 entsprechen, mit um 100 vergrößerten Bezugszahlen bezeichnet, wodurch gleichzeitig auf die vorhergehende Beschreibung Bezug genommen wird.In the embodiment shown in Figs. 3 to 5 are those parts that correspond to the embodiment according to FIGS. 1 and 2, denoted by reference numerals increased by 100, thereby simultaneously referring to the preceding Description is referred to.

Das Ausführungsbeispiel nach den Fig. 3 bis 5 unterscheidet sich von dem vorhergehenden Ausführungsbeispiel dadurch, daß hier als Rohr ein Isolierrohr 115, z.B. aus. Nylon, vorgesehen ist, in dem ein mit einer Isolierhülle 117 isolierter Leiter 118 und ein nichtisolierter Leiter 121 beide gemeinsam axial verschiebbar angeordnet sind. Die herausragenden freien Enden dieser Leiter 118 und 121 sind, wie das aus Fig. 3 ersichtlich ist, so über den Umfang des Rohres 115 auseinandergebogen, daß ihre Endabschnitte die in der öffnungsstellung der Elektrodenzange 111 voneinander abgehobenen Backen 119 und 122 bilden. Am Backen 119 ist ein/solierstück 123 befestigt, das dem Backen/119 eine Hakenform gibt, um dadurch einen Eileiter 129 einfangen zu können. Außerdem ist das Isolierstück 123 mit einer Nut 131 für den Backen 122 versehen.The embodiment according to FIGS. 3 to 5 differs from the previous embodiment in that here an insulating tube as a tube 115, e.g. from. Nylon, is provided in which an insulated with an insulating sleeve 117 Conductor 118 and a non-insulated conductor 121 are both axially displaceable together are arranged. The protruding free ends of these conductors 118 and 121 are as can be seen from Fig. 3, so on Circumference of the pipe 115 bent apart that their end sections are in the open position of the electrode forceps 111 jaws 119 and 122 raised from one another. On the cheek 119 is a / soling piece 123, which gives the jaw 119 a hook shape to thereby create a fallopian tube 129 to be able to capture. In addition, the insulating piece 123 is provided with a groove 131 for the jaw 122 is provided.

Der Betätigungsgriff der Koagulationssonde nach den Fig. 3 bis 5 ist ähnlich ausgebildet wie beim Ausführungsbeispiel nach den Fig. lund 2, nur daß hier die Bandfedemnicht als elektrische Leiter dienen und die eine Bandfeder elektrisch isoliert mit beiden Leitern 118 und 121 zum gemeinsamen Bewegen derselben verbunden ist. Die Zuführung des elektrischen SbDmes an die beiden Leiter 118 und 121 erfolgt bei diesem Ausführungsbeispiel durch in der Zeichnung nicht dargestellte Zuleitungen. The operating handle of the coagulation probe according to FIGS. 3 to 5 is designed similarly to the embodiment of FIGS. 1 and 2, only that here the ribbon springs do not serve as electrical conductors and one ribbon spring is electrical isolated connected to both conductors 118 and 121 for moving them together is. The electrical SbDmes is fed to the two conductors 118 and 121 in this embodiment by supply lines not shown in the drawing.

Werden die beiden Leiter 118 und 121 so axial im Rohr 115 verschoben, daß ihre freien Enden in das Rohr 115 hineingezogen werden, dann werden die beiden Backen 119 und 122, wie das in #Fig. 4 dargestellt ist, aneinanderbewegt, so daß der Backen 122 in die Nut 131 eingreift und der zwischen den Backen liegende Eileiter 129 genau an einer gewünschten Stelle koaguliert wird.If the two conductors 118 and 121 are shifted axially in the tube 115, that their free ends are drawn into the tube 115, then the two Jaws 119 and 122, like the one in #Fig. 4 is shown moved together so that the jaw 122 engages in the groove 131 and the fallopian tube lying between the jaws 129 is coagulated exactly at a desired point.

Bei dem in Fig. 6-dargestellten Ausführungsbeispiel sind alle diejenigen Teile, die den Teilen des in den Fig. 1 und 2 dargestellten Ausführungsbeispieles entsprechen, mit um 200 vergrößerten Bezugszahlen bezeichnet, so daß durch diesen Hinweis auf die Beschreibung des ersten Ausführungsbeispieles Bezug genommen wird.In the embodiment shown in Fig. 6, all are those Parts that correspond to the parts of the embodiment shown in FIGS correspond, denoted by reference numerals increased by 200, so that by this Reference is made to the description of the first exemplary embodiment.

Bei dem Ausführungsbeispiel nach Fig. 6 ist, ähnlich wie bei dem ersten Ausführungsbeispiel, wieder ein Metallrohr 215 vorgesehen, das an seinem ersten- Ende eine Verlängerung 221 aufweist, die hier einen haket.örmigen Backen 222 bildet. Der im Rohr 215 stabförmige axial verschiebbare/Leiter 218 ist auch hier mit einer Isolierhülle 217 versehen. Das äußerste freie Ende des Leiters 218 ist verdickt und bildet dadurch den bewegbaren, in diesem Fall axial verschiebbaren Backen 219, der bei der Schließstellung der Elektrodenzange 211 in den hakenförmigen festen Backen 222 eingreift. Bei diesem Ausführungsbeispiel kann der Betätigungsgriff wieder genau so ausgebildet sein wie beim Ausführungsbeispiel nach den Fig. 1 und 2. In the embodiment of FIG. 6 is, similar to that first embodiment, again a metal tube 215 is provided on his the first end has an extension 221 which here has a hook-shaped jaw 222 forms. The rod-shaped axially displaceable / conductor 218 in the tube 215 is also here with an insulating sleeve 217 provided. The outermost free end of the conductor 218 is thickened and thereby forms the movable one, in this case axially displaceable jaw 219, which in the closed position of the electrode clamp 211 in the hook-shaped fixed jaw 222 engages. In this embodiment, can the operating handle can again be designed exactly as in the exemplary embodiment according to FIGS. 1 and 2.

Bei diesem Ausführungsbeispiel werden jedoch die Backen durch die Kraft der Feder 28 in der Offenstellung der Elektrodenzange 211 gehalten. Durch Zusammendrücken der Bandfedern 24 und 25 wird der Backen 219 in den hakenförmigen feststehenden Backen 222 eingeführt.Um nun auch hier einen Kurzschluß zu vermeiden, ist bei dem für dieses Ausführungsbeispiel angepaßten Betätigungsgriff 13 zwischen den beiden Bandfedern 24 und 25 ein einstellbarer, die Schließbewegung der Bandfedern begrenzender Anschlag vorgesehen.In this embodiment, however, the jaws are through the Force of the spring 28 held in the open position of the electrode tongs 211. By Compression of the ribbon springs 24 and 25 turns the jaws 219 into the hook-shaped fixed jaws 222 introduced. In order to avoid a short circuit here, too, is in the adapted for this embodiment operating handle 13 between the two band springs 24 and 25 an adjustable, the closing movement of the band springs limiting stop provided.

Bei einer weiteren, nichts dargestellten Ausführungsform kann die Verlängerung 21 des Ausführungsbeispieles nach Fig. 1 mit einem hakenförmig ausgebildeten Isolierstück (entsprechend dem Isolierstück 123 in Fig. 4) fest verbunden sein. Das dem hakenförmigen Backen 19 des Ausführungsbeispieles nach Fig. 1 entsprechende Ende des im Metallrohr beweglich und isoliert angeordneten Leiters 18 kann dann wie der Backen 122 in Fig. 4 geformt sein.In a further, not shown embodiment, the Extension 21 of the embodiment of FIG. 1 with a hook-shaped Insulating piece (corresponding to the insulating piece 123 in Fig. 4) be firmly connected. The corresponding to the hook-shaped jaw 19 of the embodiment of FIG The end of the conductor 18, which is arranged movably and insulated in the metal tube, can then shaped like the jaw 122 in FIG.

Claims (10)

PatentansprücheClaims ½) Chirurgische HF-Koagulationssonde mit einer Elektrodenzange an einem ersten Ende und einem Betätigungsgriff zum Betätigen der Elektrodenzange am zweiten Ende eines mindestens nach außen elektrisch isolierten Rohres, in dem zum Zuleiten von elektrischem Strom an die Backen der Elektrodenzange ein Leiter angeordnet ist, der zum öffnen und Schließen der Elektrodenzange vom Betätigungsgriff in einer Richtung gegen eine Rückstellkraft axial verschiebbar ist, dadurch gekennzeichnet, daß zwei voneinander elektrisch isolierte Leiter (18; 15, 21) vorhanden sind, deren außerhalb des Rohres (15) befindlicheyf freier Enden die beiden Backen (19 bzw. 22) einer bipolaren Elektrodenzange (11) bilden.½) Surgical HF coagulation probe with electrode tongs a first end and an operating handle for operating the electrode forceps on second end of an at least outwardly electrically insulated tube in which to Conducting electrical current to the jaws of the electrode clamps arranged a conductor is that to open and close the electrode clamps from the operating handle in one Direction is axially displaceable against a restoring force, characterized in that that two mutually electrically insulated conductors (18; 15, 21) are present, their the two jaws (19 or 22) form a bipolar electrode forceps (11). 2) Koagulationssonde nach Anspruch 1, dadurch gekennzeichnet, daß der Schließweg der Backen (19,22; 119,122) durch einen Ansnhlsa (23, 123) begrenzt ist, der die Backen in ihrer vorzugsweise durch eine Federkraft erzwungenEnSchließstellung in einem Abstand voneinander hält.2) coagulation probe according to claim 1, characterized in that the closing path of the jaws (19, 22; 119, 122) is limited by an attachment (23, 123) which the jaws in their closed position, preferably forced by a spring force keeps at a distance from each other. 3) Koagulationssonde nach Anspruch 2, dadurch gekennzeichnet, daß der Anschlag zum Begrenzen des bewegbaren Teiles des Betätigungsgriffes oder des Leiters vorgesehen ist.3) coagulation probe according to claim 2, characterized in that the stop to limit the movable part of the operating handle or the Head is provided. 4) Koagulationssonde nach Anspruch 2, dadurch gekennzeichnet, daß als Anschlag an einem der Backen (22, 119) ein Isolierstück (23 bzw. 23) vorgesehen ist.4) coagulation probe according to claim 2, characterized in that an insulating piece (23 or 23) is provided as a stop on one of the jaws (22, 119) is. 5) Koagulationssonde nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der eine Backen (19, 119, 222) hakenförmig ausgebildet ist und daß der andere Backen (22, 122, 219) in der Schließstellung der Elektrodenzange (11, 111, 211) in den hakenförmigen Backen eingreift.5) coagulation probe according to one of claims 1 to 4, characterized in that that one jaw (19, 119, 222) is hook-shaped and that the other Jaws (22, 122, 219) in the closed position of the electrode tongs (11, 111, 211) engages in the hook-shaped jaws. 6) Koagulationssonde nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß beide Leiter (118, 121) im Rohr (115) angeordnet sind.6) coagulation probe according to one of claims 1 to 5, characterized in that that both conductors (118, 121) are arranged in the tube (115). 7) Koagulationssonde nach Anspruch 6, dadurch gekennzeichnet, daß das Rohr (115) aus Isolierstoff besteht. 7) coagulation probe according to claim 6, characterized in that the tube (115) consists of insulating material. 8) Koagulationssonde nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß beide Leiter (118, 121) im Rohr (115) gemeinsam verschiebbar angeordnet sind und daß ihre freien Enden über den Umfang des Rohres auseinandergebogen sind und dadurch beim teilweisen Einziehen dieser Enden in das Rohr die Backen (119, 122) zum Schließen der Elektrodenzange (111) aneinanderbewegbar sind. 8) coagulation probe according to claim 6 or 7, characterized in that that both conductors (118, 121) are arranged in the tube (115) so as to be displaceable together and that their free ends are bent apart over the circumference of the tube and as a result, when these ends are partially drawn into the pipe, the jaws (119, 122) can be moved towards one another to close the electrode tongs (111). 9) Koagulationssonde nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der eine Backen (22, 222) und sein Leiter (21, 221) gegenüber dem Rohr (15, 215) feststehend und der andere verschiebbar ist. 9) coagulation probe according to one of claims 1 to 7, characterized in that that the one jaw (22, 222) and its head (21, 221) opposite the tube (15, 215) is fixed and the other is movable. 10) Koagulationssonde nach Anspruch 9, dadurch gekennzeichnet, daß als feststehender Leiter und als Rohr ein nach außen isoliertes Metallrohr (15, 215) vorgesehen ist, dessen freies Ende eine Verlängerung (21, 221) aufweist, die den feststehenden Backen (22, 222( der Elektrodenzange (11,211) bildet.10) coagulation probe according to claim 9, characterized in that as a fixed conductor and as a tube an externally insulated metal tube (15, 215) is provided, the free end of which has an extension (21, 221) which the fixed jaws (22, 222 (of the electrode tongs (11,211)). L e e r s e i t eL e r s e i t e
DE2415263A 1974-03-29 1974-03-29 Surgical H.F. coagulation probe has electrode tongs - with exposed ends of insulated conductors forming tong-jaws Pending DE2415263A1 (en)

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