DE2946728A1 - HF surgical appts. for use with endoscope - provides cutting or coagulation current at preset intervals and of selected duration - Google Patents

HF surgical appts. for use with endoscope - provides cutting or coagulation current at preset intervals and of selected duration

Info

Publication number
DE2946728A1
DE2946728A1 DE19792946728 DE2946728A DE2946728A1 DE 2946728 A1 DE2946728 A1 DE 2946728A1 DE 19792946728 DE19792946728 DE 19792946728 DE 2946728 A DE2946728 A DE 2946728A DE 2946728 A1 DE2946728 A1 DE 2946728A1
Authority
DE
Germany
Prior art keywords
current
intervals
coagulation
appts
frequency
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.)
Granted
Application number
DE19792946728
Other languages
German (de)
Other versions
DE2946728C2 (en
Inventor
Ing.(grad.) Günter Farin
Peter Dipl.-Ing. 7400 Tübingen Pütz
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.)
Erbe Elecktromedizin GmbH
Original Assignee
Erbe Elektromedizin & Co Kg 7400 Tuebingen GmbH
Erbe Elecktromedizin 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 Erbe Elektromedizin & Co Kg 7400 Tuebingen GmbH, Erbe Elecktromedizin GmbH filed Critical Erbe Elektromedizin & Co Kg 7400 Tuebingen GmbH
Priority to DE19792946728 priority Critical patent/DE2946728A1/en
Publication of DE2946728A1 publication Critical patent/DE2946728A1/en
Application granted granted Critical
Publication of DE2946728C2 publication Critical patent/DE2946728C2/de
Granted 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
    • A61B18/1206—Generators therefor
    • 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
    • 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
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/0066—Sensing and controlling the application of energy without feedback, i.e. open loop control

Abstract

The appts. has a HF current generator providing a cutting and/or coagulation current. This is supplied at predetermined intervals, with the duration of these intervals as well as the length of the pauses between them being preselected. Pref. the appts. has two rotary switches (1,2) which are used respectively to select the intensity of the cutting current and the coagulation current, with a dual push-button switch (3) used to select either or both of these currents. Two further rotary switches (4,5) respectively control the duration of the pulse intervals and the pauses between them, with a second dual push-button switch (6) for selection of individual pulses or a pulse series.

Description

Hochfrequenz-Chirurgiegerät High-frequency surgical device

Die Erfindung betrifft ein Hochfrequenz-Chirurgiegerät entsprechend dem Oberbegriff des Patentanspruchs 1, das insbesondere für endoskopische Schnitte und Koagulationen verwendbar ist.The invention relates accordingly to a high-frequency surgical device the preamble of claim 1, in particular for endoscopic cuts and coagulations can be used.

Bekannte Hochfrequenz-Chirurgiegeräte erzeugen kontinuierliche hochfrequente Wechselströme mit geringer Modulation für glatte Schnitte, mehr oder weniger stark in the Amplitude modulierte Wechselströme für koagulierende bzw. verschorfende Schnitte, sowie stark modulierte hochfrequente Wechselströme für Blutstillung bzw. Koagulation. Die hochfrequenten Wecheslströme werden#über Fingerschalter oder Fußschalter angeschaltet bzw. ausgeschaltet.Known high-frequency surgical devices generate continuous high-frequency Alternating currents with low modulation for smooth cuts, more or less strong alternating currents modulated in the amplitude for coagulating or scabbing cuts, as well as strongly modulated high-frequency alternating currents for hemostasis or coagulation. The high-frequency alternating currents are switched on using a finger switch or foot switch or switched off.

Insbesondere bei endoskopischen Operationen,wie bei der Polypektomie, der Paillotomie oder bei transurethralen Resektionen besteht jedoch die Gefahr, daß die Schneidelektrode zu tief in das Gewebe einschneidet, weil der Operateur die Schneidelektrode nicht ausreichend feinfühlig führen kann. Bei einer derartigen Operation drückt der Operateur die Schneidelektrode über endoskopische Instrumente gegen das zu schneidende oder zu koagulierende Gewebe und schaltet über Fingerschalter oder Fußschalter den hochfrequenten Wechselstrom ein. Dabei kann es vorkommen, daß die Schneidelektrode schneller und tiefer in das Gewebe eindringt, als es der Operateur beabsichtigte, bevor den hochfrequenten Wechselstrom abschalten kann.Especially in endoscopic operations, such as polypectomy, the paillotomy or transurethral resections, however, there is a risk of that the cutting electrode cuts too deep into the tissue because the surgeon cannot guide the cutting electrode with sufficient sensitivity. With such a During the operation, the surgeon pushes the cutting electrode over endoscopic instruments against the tissue to be cut or coagulated and switched via finger switch or footswitch on the high-frequency alternating current. It can happen that the cutting electrode faster and deeper into the Tissue penetrates, than the surgeon intended before switching off the high-frequency alternating current can.

Es ist deshalb Aufgabe der Erfindung, ein Hochfrequenz-Chirurgiegerät der eingangs genannten Art unter möglichst weitgehender Vermeidung der benannten Nachteile und Schwierigkeiten derart zu verbessern, daß es die Wirkungsweise des Chirurgiegeräts dem Operateur ermöglicht, die Tiefe bzw. Geschwindigkeit der Schnittführung oder Koagulation möglichst genau durchführen zu können. Diese Aufgabe wird bei einem Hochfrequenz-Chirurgiegerät der eingangs genannten Art erfindungsgemäß durch den Gegenstand des Patentanspruchs 1 gelöst.It is therefore the object of the invention to provide a high-frequency surgical device of the type mentioned at the beginning, avoiding the named ones as far as possible Drawbacks and difficulties to improve so that it the operation of the Surgical device enables the surgeon to adjust the depth or speed of the incision or to be able to carry out coagulation as precisely as possible. This is a task for a High-frequency surgical device of the type mentioned according to the invention by the Subject matter of claim 1 solved.

Bei einem derartigen Hochfrequenz-Chirurgiegerät wird deshalb der hochfrequente Wechselstrom unmoduliert für glatte Schnitte, mehr oder weniger moduliert für koagulierende Schnitte, bzw.In such a high-frequency surgical device, the high-frequency alternating current unmodulated for smooth cuts, more or less modulated for coagulating cuts or

stark moduliert für Koagulationen nicht kontinuierlich, sondern in einem oder mehreren zeitlichen Intervallen erzeugt, wobei die Intervalldauer sowie die Pausendauer zwischen zwei Intervallen in weiten Grenzen am Gerät eingestellt werden kann.strongly modulated for coagulation not continuously, but in one or more time intervals generated, the interval duration as well the duration of the pause between two intervals is set within wide limits on the device can be.

Dabei erfolgen Schnitte und Koagulationen nicht kontinuierlich, sondern impulsförmig in Etappen. So ist es zum Beispiel möglich, durch geeignete Wahl der Intervalldauer Schnitte in Etappen von 1 mm zu führen, die von einer Pause unterbrochen werden, die es dem Operateur ermöglicht, nach jedem Interval den Schnittvorgang oder Koagulationsvorgang zu beenden oder weiterzuführen.Cuts and coagulations are not carried out continuously, but instead pulsed in stages. So it is possible, for example, by a suitable choice of Interval duration of making cuts in 1 mm increments, interrupted by a break which enables the surgeon to perform the cutting process after each interval or to end or continue the coagulation process.

Anhand der Zeichnung soll die Erfindung beispielsweise näher erläutert werden. Es zeigen: Fig. 1 eine perspektivische Ansicht der Bedienungsplatte eines Hochfrequenz-Chirurgiegeräts gemäß der Erfindung; und Fig. 2 graphische Darstellungen zur Erläuterung der Arbeitsweise bekannter Hochfrequenz-Chirurgiegeräte im Vergleich zu einem Hoch frequenz - Chi rurgie ge rät gemäß der Erfindung.The invention is to be explained in more detail, for example, with the aid of the drawing will. 1 shows a perspective view of the control panel of a High frequency surgical device according to the invention; and Fig. 2 graphs to explain the mode of operation of known high-frequency surgical devices in comparison to a high frequency - surgery ge advises according to the invention.

Bei dem dargestellten Ausführungsbeispiel ist in an sich bekannter Weise ein Stellglied 1 vorgesehen, an dem die Intensität des Schneidestroms eingestellt wird, sowie ein Stellglied 2, an dem die Intensität des Koagulationsstromes eingestellt wird. An einem Schalter 3 kann der Schneidestrom oder der Koagulationsstrom ausgewählt werden.In the illustrated embodiment, it is known per se Way, an actuator 1 is provided on which the intensity of the cutting current is set, as well as an actuator 2 on which the intensity of the coagulation current is set. At a switch 3, the cutting current or the coagulation current to be selected.

Gemäß der Erfindung ist eine Einrichtung zur Erzeugung des hochfrequenten Schneide- undfoder Koagulationsstromes in zeitlich vorherbestimmten Intervallen vorgesehen, an der die Intervalldauer d tI an einem Stellglied 4 und die Pausendauer a tp zwischen aufeinanderfolgenden Intervallen an einem Stellglied 5 einstellbar ist. An einem Schalter 6 kann der Operateur wählen, ob er Einzelimpulse oder Impulsserien mit Hilfe an sich bekannter Fingerschalter oder Fußschalter auslösen möchte.According to the invention is a device for generating the high frequency Cutting and / or coagulation currents at predetermined intervals provided at which the interval duration d tI on an actuator 4 and the pause duration a tp adjustable on an actuator 5 between successive intervals is. At a switch 6, the surgeon can choose whether he wants single pulses or a series of pulses would like to trigger with the help of known finger switches or foot switches.

Wählt der Operateur die Schalterstellung Einzelimpuls, so erzeugt das Hochfreguenz-Chirurgiegerät nach jeder Betätigung eines Fingerschalters oder Fußschalters nur ein einziges Intervall der vorher am Stellglied 4 eingestellten Dauer und der am Stellglied 1 oder 2 eingestellten Intensität. Wählt der Operateur die Schalterstellung Impulsserie so erzeugt das Hochfrequenz-Chirurgiegerät so lange aufeinanderfolgende Intervalle der am Stellglied 4 eingestellten Intervalidauer und der am Stellglied 5 eingestellten Pausendauer, wie der Operateur den Fingerschalter oder Fußschalter des Hochfrequenz-Chirurgiegeräts betätigt.If the surgeon selects the switch position single pulse, it is generated the high-frequency surgical device after each actuation of a finger switch or Foot switch only a single interval of the previously set on actuator 4 Duration and the intensity set on actuator 1 or 2. The surgeon chooses the high-frequency surgical device generates the pulse series switch position for so long successive intervals of the interval duration set on actuator 4 and the pause duration set on the actuator 5, as the surgeon uses the finger switch or the foot switch of the high-frequency surgical device is actuated.

In Fig. 2 zeigt das Diagramm 1 das Zeit-Leistungsdiagramm und das Diagramm 3 das Zeit-Schnittiefe- bzw. Koagulationstiefeaiagramm bekannter Hochfrequenz-Chirurgiegeräte im Vergleich zu entsprechenden Diagrammen 2 und 4 eines Hochfrequenz-Chirurgiegeräts gemäß der Erfindung. Wie aus Diagramm 1 ersichtlich ist, erzeugen bekannte Hochfrequenz-Chirurgiegeräte einen weitgehend kontinuierlichen Schneidestrom bzw. Koagulationsstrom vom Einschalten bis zum Ausschalten des Schneidestroms bzw. Koagulationsstroms über Fingerschalter oder Fußschalter. Wie aus Diagramm 2 ersichtlich ist, erzeugt dagegen ein Hochfrequenz-Chirurgiegerät geig#ß~'der Erfindung den Schneidestrom bzw. Koagulationsstrom in Intervallen der einstellbaren Dauer tI und mit Pausen der einstellbaren Dauer tp.In Fig. 2, the diagram 1 shows the time-performance diagram and the Diagram 3 shows the time-depth of cut or coagulation depth diagram of known high-frequency surgical devices in comparison to corresponding diagrams 2 and 4 of a high-frequency surgical device according to the invention. As can be seen from diagram 1, known high-frequency surgical devices generate a largely continuous cutting current or coagulation current from switching on until the cutting current or coagulation current is switched off using the finger switch or foot switch. As can be seen from diagram 2, on the other hand, a high-frequency surgical device generates geig # ß ~ 'of the invention the cutting current or coagulation current at intervals of the adjustable duration tI and with pauses of the adjustable duration tp.

Wie aus Diagramm 3 ersichtlich ist, ergibt sich bei bekannten Hochfrequenz-Chirurgiegeräten eine kontinuierliche Vergrößerung der Schnittiefe bzw. Koagulationstiefe, während bei einem Hochfrequenz-Chirurgiegerät gemäß der Erfindung entsprechend Diagramm 4 eine Vergrößerung der Schnittiefe in Etappen von ß s erfolgt. Auf diese Weise ist es möglich, eine optimale Schnittiefe in zuverlässiger Weise zu erzielen.As can be seen from diagram 3, this results in known high-frequency surgical devices a continuous increase in the depth of cut or coagulation depth, while in a high-frequency surgical device according to the invention according to the diagram 4 the depth of cut is increased in stages of ß s. In this way it is possible to achieve an optimal depth of cut in a reliable manner.

Claims (2)

Patentansprüche Hochfrequenz-Chirurgiegerät mit nundestens einem Hochfrequenzgenerator zur Erzeugung von hochfrequentem Schneidestrom und/oder Koagulationsstrom, insbesondes für endoskopische Schnitte und Koagulationen, d a d u r c h g e -k e n n z e i c h n e t, daß eine Einrichtung zur Erzeugung des hochfrequenten Schneidestroms und/oder Koagulationsstroms in zeitlich vorherbestimmten Intervallen vorgesehen ist, an der sowohl die Dauer der Intervalle als auch die Pause zwischen aufeinanderfolgenden Intervallen einstellbar sind. Claims high-frequency surgical device with at least one High-frequency generator for generating high-frequency cutting current and / or coagulation current, especially for endoscopic cuts and coagulations, d a d u r c h g e -k e n n z e i c h n e t that a device for generating the high-frequency cutting current and / or coagulation current provided at predetermined intervals is where both the duration of the intervals and the pause between successive ones Intervals are adjustable. 2. Hochfrequenz-Chirurgiegerät nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß die Intervalle einzeln oder in Serien durch Fingerschalter oder Fußschalter einschaltbar sind.2. High-frequency surgical device according to claim 1, d a d u r c h g e it is not indicated that the intervals can be set individually or in series using finger switches or foot switches can be switched on.
DE19792946728 1979-11-20 1979-11-20 HF surgical appts. for use with endoscope - provides cutting or coagulation current at preset intervals and of selected duration Granted DE2946728A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792946728 DE2946728A1 (en) 1979-11-20 1979-11-20 HF surgical appts. for use with endoscope - provides cutting or coagulation current at preset intervals and of selected duration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792946728 DE2946728A1 (en) 1979-11-20 1979-11-20 HF surgical appts. for use with endoscope - provides cutting or coagulation current at preset intervals and of selected duration

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DE2946728A1 true DE2946728A1 (en) 1981-05-27
DE2946728C2 DE2946728C2 (en) 1987-07-30

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DE3228136A1 (en) * 1982-07-28 1984-02-09 Erbe Elektromedizin GmbH, 7400 Tübingen HIGH-FREQUENCY SURGERY DEVICE
DE3420340A1 (en) * 1983-06-01 1984-12-20 Berchtold Medizin-Elektronik GmbH & Co, 7200 Tuttlingen High-frequency surgical cutting instrument
DE3510586A1 (en) * 1985-03-23 1986-10-02 Erbe Elektromedizin GmbH, 7400 Tübingen Control device for a high-frequency surgical instrument
DE3515622A1 (en) * 1985-04-30 1986-11-06 Gerhard Prof. Dr.-Ing. 8012 Ottobrunn Flachenecker High-frequency generator for high-frequency surgery
DE3530335A1 (en) * 1985-08-24 1987-03-12 Erbe Elektromedizin Radio-frequency surgical apparatus
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