DE1439302A1 - High-frequency surgical device - Google Patents

High-frequency surgical device

Info

Publication number
DE1439302A1
DE1439302A1 DE19631439302 DE1439302A DE1439302A1 DE 1439302 A1 DE1439302 A1 DE 1439302A1 DE 19631439302 DE19631439302 DE 19631439302 DE 1439302 A DE1439302 A DE 1439302A DE 1439302 A1 DE1439302 A1 DE 1439302A1
Authority
DE
Germany
Prior art keywords
frequency
generator
control unit
connection
operating room
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.)
Pending
Application number
DE19631439302
Other languages
German (de)
Other versions
DE1439302B2 (en
Inventor
Karl Hudek
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
Publication of DE1439302A1 publication Critical patent/DE1439302A1/en
Publication of DE1439302B2 publication Critical patent/DE1439302B2/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/1206Generators therefor
    • A61B18/1233Generators therefor with circuits for assuring patient safety
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/14Probes or electrodes therefor
    • A61B18/16Indifferent or passive electrodes for grounding

Description

Nochfrequenz,-Chirargiegerät Die Windung betrifft ein Hochfrequenz-Chirurgiegerät, bestehend ans einem außerhalb des Operationerauaes aufstellbaren Nochtrequenzgenerator und ein zur Aufstellung im Operationeraum bestimmtei# Steuergerät, mindestens zum Ein- und Ausschalten des Rochfrequenzgenerators sowie zum Anschluß der aktiven und inaktiven Chirurgleelektrode und aus einer Hochfrequenz-Energieleitung zwiechen den Generator und dem Steuergerät, die am Ort der Generatoraufetellung geerdet ist" bei der gleichzeitigen Anachaltung eines solchen Hochfrequenz-Chirurgiegeräten sowie eines im Operationeraum aufgestellten und dort geerdeten Meßgeräten für Körperaktionsepannungene insbenondere.eines Elektrokardiografen oder Encephalografen, an ein- und denselben Patienten haben sich Störungen an Meßgerät ergebeng die auch dann wirksam waren, wenn der Hochfrequenzgenerator den Chirurgiegerätes abgeschaltet war* Diene Störungen äußerten mich in Schwingungen der Anzeige den Meßgerätes entsprechend der Netzfrequens; offenbar trat eine Überlagerung den »ßwerten durch eine aus der Netzepannung abgeleitete Spannun eing die unter Umständen sogar zur Zerstörung den Meßwerkee führte* Die der Erfindung zugrundeliegenden Untersuchungen führten zu der Erkenntnis, daß zufolge der Erdung der Nochtrequenzenergieleitung am, Aufstellungeort"den Hochfrequenschirurgiegenerators, der galymischen Verbindung zwischen der geerdeten Hochtrequenzenergieleitung und der inaktiven Uhirurgitelektrode über die galvonieche Verbindung zwiachen Primär- und Sekundärwicklung den Rochfrequensäbertragere im Steuergerätj, der galvaniechen Verbin- du-»Äv zwischen der inaktivon Chirurgieelektrode und den Einr- en gUtii7den Meßgeräten über den Patienten sowie der Erdung den Meßgeräten in Operationeraum *ich eine Erdungeschleife# ' fRit xwei bin zu 100 a auaeinanderliegenden Erdungspunkten bildet. Solche auaeinanderliegenden Erdungepunkte können bekanntlich voneinander unterschiedlich* Potentiale auf Grund induzierter Sp*nnungen oder Spannungeabfälle verschiedener Verbraucher aufWeinen, die zu entsprechenden Ausgleichströmen In der ge-. nannten Schleife führen. Mit diesen Auagleicheströmen wird das Meßwerk den Meßgerätes zusätzlich belastet, Erfind:ungsgemäß wird eine Schleifenbildung zwischen den räum. lich voneinander entfernten Erdungepunkten der Nochfrequenzenergieleitung und den Meßgeräten dadurch vermiedeng daß der in das Steuergerät des Chirurgiegeräten eingebaute Hoch:frequenzübertrager galyäniech voneinander getrennte Wicklungen aufweist und die Verbindung zwischen der Bekundärseite den Nochtrequenzübertragers und den Anschluß der inaktiven Blektrode mit einem gesonderten Erdungsanschluß versehen ist, Nachfolgend worden die der Erfindung zugrundeliegenden Erkenntnisse und die Erfindung selbst an Hand der Tigaren 1 bin 3 näher erläutert.Still frequency, chirargy device The winding relates to a high-frequency surgical device, consisting of a high-frequency generator that can be set up outside the operating room and a control device intended to be set up in the operating room, at least for switching the Roch frequency generator on and off and for connecting the active and inactive surgical electrode and a high frequency -Energy line between the generator and the control device, which is earthed at the location of the generator installation "with the simultaneous connection of such a high-frequency surgical device as well as a measuring device for body action tension, in particular an electrocardiograph or encephalograph, set up in the operating room and grounded there, on one and the same patient disturbances have to gauge ergebeng were effective even when the high-frequency generator was switched off the surgical unit * Serve disorders expressed myself in vibrations of display the meter accordingly the mains frequency; apparently entered a superposition of the "ßwerten by a derived from the Netzepannung Spannun eing the possibly even led the Meßwerkee to destruction * The underlying the invention investigations led to the discovery that, according to the grounding of the Nochtrequenzenergieleitung on, Aufstellungeort" the Hochfrequenschirurgiegenerators which galymischen Connection between the grounded high-frequency power line and the inactive surgical electrode via the galvanic connection between the primary and secondary winding, the high-frequency transmitter in the control unit, the galvanic connection du- »Äv between the inaktivon surgical electrode and the en gUtii7den measuring devices over the patient as well as the grounding Measuring devices in the operating room * I form a grounding loop # ' fRit xwei am 100 a contiguous grounding points. As is well known, such adjacent grounding points can have different potentials due to induced voltages or voltage drops of different consumers on wines, which lead to corresponding equalizing currents in the ge. called loop. With these equalizing currents, the measuring mechanism of the measuring device is additionally loaded. Lich distant grounding points of the high-frequency power line and the measuring devices are avoided by the fact that the high-frequency transmitter built into the surgical device has separate windings and the connection between the secondary side of the high-frequency transmitter and the connection of the inactive lead electrode is provided with a separate earth connection the knowledge on which the invention is based and the invention itself are explained in more detail using the Tigaren 1 bin 3.

Die Fig. 1 veranschaulicht den achaltungstechnischen Zusammenbau zwischen dem Chirurgiegerät mit seinem außerhalb dem) Operationeraumee angeordneten Hochtrequensgenerator und den in Operationeraum angeordneten Steuergerät und den Meßgerät" die Ylg, 2 zeigt die erfindungegemäße Ausbildung den in dem Steuergerät untergebrachten Hochfrequenzübertragern und die lig. 3 zeigt die AunfUhrung nach Fig. 2 zusammen mit einer' ebenfälls in Steuergerät untergebrachten Sicherheiteschaltung. Gleiche Teile sind in allen 3 Piguren mit #'.gleichen Zit- fern bemvjpt. Mit 1 ist der Boohtrequensgenerator den Chirargiegeräten be- zeichnet. 2 bedeutet den Operationeraum Bei 3 (außerhalb-den Operationeraumen int der Generator 1 bzw., die koaxiale Hochfrequenz--Energieleitung 4 geerdet. Diese Leitung führt zu den in Operationeraum 2 aufgestellten Steuergerät-5 für den Generator 1, in welchen Steuergerät der Nochtrequenzübertrager 6 mit den Eingangebuchsen 7 und 8 enthalten ist. Die zwischen Steuergerät und H»-Generator vorhandenen Steuerleitungen sind der Übersichtlichkeit der Darstellung wegen nicht gezeichnet. Die aktive Elektrode 9 (zum Schneiden und Koagulieren) und die neutrale Elektrode 10 sind über die Buchsen 11, 12 an die Se-. kundäreelte des Übertragern 6 unter Zwischenschaltung des Trennkondennatorn 13 angeachlosaen.*Der Patient 14 ist mit der breitflächigen neutralen Elektrode 10 verbunden. Der Elektrokardiograph 15, der die Herzaktionaapannungen dea Patienten registriert, hat fünf Anschlüsse 169 179 189 19 und 20, von denen 16p 17v 189 19 in bekannter Weine mit dem Patienten 14 und der Anschluß 20 mit dem Erdpunkt 21 im Operationeraum- verbunden sind. Mit dicken Strichen ist die bei dieser Schaltung entstehende Erdungaschleife zwischen den beiden Erdungepunkten 3 und 21 hervorgehoben, Na ist ersichtlich, daß der einleitend genannte Ausgleichsetrom zwischen 3 und 21 über das Meßgerät fließt und Pehlmennungen hervorruft. Eine Erdung des übertragibre an Erdpunkt 21 würde auch keine Abhilfe schaffen, weil dadurch nur eine weitere Erdochleite entstünde, wobei der Spannungeabfallg den der Aungleiohentrom auf einer solchen Erdungeleitung mit sich bringt, vom Meßgerät angezeigt würde.Fig. 1 illustrates the achaltungstechnischen assembly between the surgical device with its outside the) Operationeraumee arranged Hochtrequensgenerator and arranged in Operationeraum controller and the meter "the YLG, 2 the erfindungegemäße training shows the accommodated in the control unit Hochfrequenzübertragern and the lig. 3 shows the Execution according to Fig. 2 together with a 'safety circuit also accommodated in the control unit. The same parts are in all 3 Piguren with #'. fern bemvjpt. With one of Boohtrequensgenerator is records the Chirargiegeräten loading. 2 means the operating room At 3 (outside the operating room int the generator 1 or, the coaxial high-frequency power line 4 grounded. This line leads to the control unit 5 for the generator 1 set up in the operating room 2, in which control unit the high-frequency transmitter 6 is included with the Eingangebuchsen 7 and 8. the existing between control unit and H "generator control lines are not shown for clarity of presentation paths. the active electrode 9 (for cutting and coagulation) and the neutral electrode 10 are connected via the jacks 11, 12 to the secondary circuit of the transformer 6 with the interconnection of the isolating capacitor 13. * The patient 14 is connected to the wide-area neutral electrode 10. The electrocardiograph 15, which registers the cardiac action voltages of the patient, has five connections 169 179 189 19 and 20, of which 16p 17v 189 19 in well-known wines with the patient 14 and the connection 20 with the Erdpu nkt 21 in the operating room. With thick bars the resultant in this circuit Erdungaschleife between the two Erdungepunkten is highlighted 3 and 21, Na is apparent that the introduction mentioned Ausgleichsetrom between 3 and 21 flows through the meter and causes Pehlmennungen. Earthing the transferable to earth point 21 would also not provide a remedy because this would only result in a further earth leakage, with the voltage drop caused by the aungleiohentrom on such a grounding line being displayed by the measuring device.

In der Fig. 2 ist dargestellt, wie durch die erfindungegemäße galvaniec&* Trennung der beiden Ubertragerseiten und die Erdung der Bekandärzeite des Übertragern iai Operationeraus bei 21 die genannten Störungen des Meßgeräten vermieden sind, Bei leistungentarken Hochtrequens-Chirurgiegeräten ist es vorschrift# daß die Yorbindung der neutralen Elektrode mit Nochfrequens-Chirargiegerät durch eine Sicherheiteaohaltum überwacht wird. Beim Betrieb einer solchen Schutzechaltung mit Wechselstrom entsteht durch den Spannungeabfall über die not.-wendige Zuleitung zur neutralen Elektrode eine 50 Bz-Bru»apannung gegen Erde, die die Regietriergeräte ebenfalls erheblich stören kann. Bei der Schaltgruppe nach der Erfindung wird daher die Sicherheitafichaltung mit gesiebter Gleichspannung be- trieben. Die entsprechende Schaltung ist in der Pig. 3-dargestellts Dabei ist die mit der neutralen Elektrode 10 verbundene Sekundäreelte des Übertragers 6 bei 21 geerdet. Der Transformator 22, der aus einer im Generatorgehäuse 1 untergebrachten 50 Bz-Wecheelapannungequelle gespeist wird (nicht dargestellt), arbeitet auf den Gleichrichter 23 mit Glättungekondensator 24, der einpraeita bei 21 geerdet ist und anderersei to über das Relais 25-- über die Buchse 26 der geerdeten neutralen Elektrode 10 verbunden Ist. Wenn die Elektrode 10 versehentlich oderz.B. wegen einer schadhaften Zuleitung nicht geerdet ist" fällt das Relais 25 ab und verhindert über einen Steaerkontakt, daß der Hochtrequenzgenerator eingeschaltet worden kann*In FIG. 2 is illustrated as separation are avoided both Ubertragerseiten and the grounding of the Bekandärzeite of transformers iai Operationeraus at 21, the above-mentioned disorders of the measuring instruments through the erfindungegemäße galvaniec & * In leistungentarken Hochtrequens surgery devices, it is prescribed # that the Yorbindung the Neutral electrode with the high-frequency chirargy device is monitored by a safety device. When such a protective circuit is operated with alternating current, the voltage drop across the necessary supply line to the neutral electrode creates a 50 Bz voltage to earth, which can also considerably disturb the registration devices. Therefore, in the switch group according to the invention, the Sicherheitafichaltung with sieved DC voltage is excessive loading. The corresponding circuit is in the Pig. 3-illustrated Here, the secondary end of the transformer 6 connected to the neutral electrode 10 is grounded at 21. The transformer 22, which is supplied from a in the generator housing 1 housed 50 Bz-Wecheelapannungequelle (not shown), operates in the rectifier 23 with Glättungekondensator 24 which einpraeita is grounded at 21 and anderersei to via the relay 25-- via the socket 26 the grounded neutral electrode 10 is connected. If the electrode 10 is accidentally or e.g. is not grounded because of a defective supply line " the relay 25 drops out and prevents the high-frequency generator from being switched on via a steaer contact *

Claims (1)

Patentanspruch Hochfrequenz-Chir'urgiegerätg bestehend aus einem außerhalb den Operationeraunte aufstellbaren Hochfrequensgenerator und einem zur Aufstellung im Operationsraum bestimmten Steuergerät, mindestens zum Ein- und Ausschalten des Hochfrequenzgenerators sowie zum Anschluß der aktiven und inaktiven Chlrurgieelektrode und aus einer Hochfrequenz-Energieleitung zwischen den Generator und den Steuergerät, die amt Ort der Zeneratoraufstellung geerdet istg dadurch gekennzeichnetg daß der In das Steuergerät den Chirarglegeräten eingebaute Hochtrequenzübertrager galvaniech voneinander getrennte Wicklungen aufweist und die Ver-m bindung zwischen der Sekundärseite den Hochfrequenzübertragern und den Anschluß der inaktiven Blektrode mit einem gesonderten Erdungsanachluß versehen ist. Claim high frequency Chir'urgiegerätg consisting of a deployable outside the Operationeraunte Hochfrequensgenerator and intended for installation in the operating room control unit, at least for turning on and off the high-frequency generator as well as for connecting the active and inactive Chlrurgieelektrode and from a high frequency power line between the generator and the Control unit, which is earthed at the location of the generator set-up, characterized in that the high-frequency transformer built into the control unit of the chirargle units has galvanically separated windings and the connection between the secondary side of the high-frequency transformer and the connection of the inactive sheet metal electrode is provided with a separate earthing connection.
DE19631439302 1963-10-26 1963-10-26 High frequency surgical device Pending DE1439302B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0088050 1963-10-26

Publications (2)

Publication Number Publication Date
DE1439302A1 true DE1439302A1 (en) 1969-01-23
DE1439302B2 DE1439302B2 (en) 1971-05-19

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DE (1) DE1439302B2 (en)

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DE1439302B2 (en) 1971-05-19
AT247515B (en) 1966-06-10
CH413144A (en) 1966-05-15

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