DE1439302B2 - High frequency surgical device - Google Patents
High frequency surgical deviceInfo
- Publication number
- DE1439302B2 DE1439302B2 DE19631439302 DE1439302A DE1439302B2 DE 1439302 B2 DE1439302 B2 DE 1439302B2 DE 19631439302 DE19631439302 DE 19631439302 DE 1439302 A DE1439302 A DE 1439302A DE 1439302 B2 DE1439302 B2 DE 1439302B2
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- generator
- connection
- surgical
- surgical device
- 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
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
- A61B18/1233—Generators therefor with circuits for assuring patient safety
-
- 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
- A61B18/16—Indifferent or passive electrodes for grounding
Description
1 21 2
Die Erfindung betrifft ein Hochfrequenz-Chirurgie- Die Aufgabe der Erfindung besteht darin, bei einem gerät, bestehend aus einem außerhalb des Operations- Hochfrequenz-Chirurgiegerät der eingangs erwähnten raumes aufstellbaren Hochfrequenzgenerator und Art dafür zu sorgen, daß keine Ausgleichsströme einen zur Aufstellung im Operationsraum bestimmten zwischen den beiden Erdungspunkten fließen können. Steuergerät, mindestens zum Ein- und Ausschalten 5 Erfindungsgemäß wird diese Aufgabe dadurch gedes Hochfrequenzgenerators sowie zum Anschluß der löst und eine Schleifenbildung zwischen den räumaktiven und inaktiven Chirurgieelektrode und aus lieh voneinander entfernten Erdungspunkten der einer Hochfrequenz-Energieleitung zwischen dem Hochfrequenzenergieleitung und des Meßgerätes da-Generator und dem Steuergerät, die am Ort der durch vermieden, daß der in das Steuergerät des Generatoraufstellung geerdet ist. io Chirurgiegerätes eingebaute HochfrequenzübertragerThe invention relates to a high-frequency surgery. The object of the invention is to provide a device, consisting of an outside of the surgical high-frequency surgical device of the aforementioned A high-frequency generator that can be set up in the room and to ensure that there are no equalizing currents one intended for installation in the operating room can flow between the two earthing points. Control unit, at least for switching on and off 5 According to the invention, this object is achieved High-frequency generator as well as for the connection of the solves and a loop formation between the spatially active and inactive surgical electrode and borrowed from each other distant grounding points of the a high-frequency power line between the high-frequency power line and the measuring device da generator and the control unit, which at the location of the avoided that the in the control unit of the Generator installation is earthed. io surgical device built-in high frequency transmitter
Bei der gleichzeitigejß Anschaltung eines solchen galvanisch voneinander getrennte Wicklungen auf-With the simultaneous connection of such a galvanically separated windings
Hochfrequenz-Chirurgiegerätes sowie eines im Opera- weist und die Verbindung zwischen der SekundärseiteHigh-frequency surgical device as well as one in the operating mode and the connection between the secondary side
tionsraum aufgestellten und dort geerdeten Meß- des Hochfrequenzübertragers und dem Anschluß derThe measuring room of the high-frequency transformer and the connection of the
gerätes für Körperaktiönsspannungen, insbesondere inaktiven Elektrode mit einem gesonderten Erdungs-device for body activity voltages, especially inactive electrodes with a separate grounding
eines Elektrokardiografen oder Encephalografen, an 15 anschluß versehen ist.an electrocardiograph or encephalograph, is provided at 15.
ein und denselben Patienten haben sich Störungen Nachfolgend werden die der Erfindung zugrundeone and the same patient have disorders. The following are the basis of the invention
am Meßgerät ergeben, die auch dann wirksam waren, liegenden Erkenntnisse und das die Erfindung auf-results on the measuring device, which were then also effective, lying knowledge and that the invention on-
wenn der Hochfrequenzgenerator des Chirurgie- weisende Hochfrequenz-Chirurgiegerät an Hand derwhen the high-frequency generator of the high-frequency surgical device is on hand
gerätes abgeschaltet war. Diese Störungen äußerten Fig. 1 bis 3 näher erläutert.device was switched off. These disturbances expressed FIGS. 1 to 3 explained in more detail.
sich in Schwingungen der Anzeige des Meßgerätes 20 Fig. 1 veranschaulicht den schaltungstechnischenin oscillations of the display of the measuring device 20 Fig. 1 illustrates the circuitry
entsprechend der Netzfrequenz; offenbar trat eine Zusammenbau zwischen dem Chirurgiegerät mit sei-according to the network frequency; apparently an assembly occurred between the surgical device with its
Überlagerung des Meßwertes durch eine aus der nem außerhalb des Operationsraumes angeordnetenSuperimposition of the measured value by one from the NEM arranged outside the operating room
Netzspannung abgeleitete Spannung ein, die unter Hochfrequenzgenerator und dem im OperationsraumMains voltage derived voltage, the one under the high frequency generator and the one in the operating room
Umständen sogar zur Zerstörung des Meßwerkes angeordneten Steuergerät und dem Meßgerät;In some circumstances, the control device and the measuring device even arranged to destroy the measuring mechanism;
führte. 25 Fig. 2 zeigt die Ausbildung des in dem Steuer-led. 25 Fig. 2 shows the formation of the in the control
Die der Erfindung zugrunde liegenden Unter- gerät untergebrachten Hochfrequenzübertragers, und
suchungen führten zu der Erkenntnis, daß zufolge F i g. 3 zeigt die Ausführung nach F i g. 2 zusamder
Erdung der Hochfrequenzenergieleitung am Auf- men mit einer ebenfalls im Steuergerät untergebrachstellungsort
des Hochfrequenzchirurgiegenerators, der ten Sicherheitsschaltung. Gleiche Teile sind in allen
galvanischen Verbindung zwischen der geerdeten 30 drei Figuren mit gleichen Ziffern benannt.
Hochfrequenzenergieleitung und der inaktiven Mit 1 ist der Hochfrequenzgenerator des Chirurgie-Chirurgieelektrcde
über die galvanische Verbindung gerätes bezeichnet. 2 bedeutet den Operationsraum,
zwischen Primär- und Sekundärwicklung des Hoch- Bei 3 (außerhalb des Operationsraumes) ist der Genefrequenzübertragers
im Steuergerät, der galvanischen rator 1 bzw. die koaxiale Hochfrequenz-Energie-Verbindung
zwischen der inaktiven Chirurgie- 35 leitung 4 geerdet. Diese Leitung führt zu dem im
elektrode und den Eingängen des Meßgerätes über Operationsraum 2 aufgestellten Steuergerät 5 für den
den Patienten sowie der Erdung des Meßgerätes im Generator 1, in welchem Steuergerät der Hoch-Operationsraum
sich eine Erdungsschleife mit zwei frequenzübertrager 6 mit den Eingangsbuchsen 7
bis zu 100 m auseinanderliegenden Erdungspunkten und 8 enthalten ist. Die zwischen Steuergerät und
bildet. Solche auseinanderliegenden Erdungspunkte 40 HF-Generator vorhandenen Steuerleitungen sind der
können bekanntlich voneinander unterschiedliche Übersichtlichkeit der Darstellung wegen nicht gePotentiale
auf Grund induzierter Spannungen oder zeichnet.The subdevice on which the invention is based, housed high-frequency transformer, and searches led to the finding that, according to FIG. 3 shows the embodiment according to FIG. 2 together with the earthing of the high-frequency power line on the upstream with a location for the high-frequency surgical generator, which is also housed in the control unit, the th safety circuit. The same parts are named in all galvanic connections between the earthed 30 three figures with the same numbers.
High-frequency power line and the inactive 1 with the high-frequency generator of the surgical-surgical electrode is referred to via the galvanic connection device. 2 means the operating room, between the primary and secondary winding of the high-voltage. At 3 (outside the operating room), the gene frequency transmitter in the control unit, the galvanic rator 1 or the coaxial high-frequency energy connection between the inactive surgical line 4 is grounded. This line leads to the control device 5 set up in the electrode and the inputs of the measuring device via operating room 2 for the patient as well as the earthing of the measuring device in generator 1, in which control device of the high operating room there is a grounding loop with two frequency transmitters 6 with the input sockets 7 to to 100 m apart earthing points and 8 is included. The between the control unit and forms. Such spaced apart earthing points 40 HF generators are present control lines which, as is well known, can differ from one another in the clarity of the representation because of not potentials due to induced voltages or draws.
Spannungsabfälle verschiedener Verbraucher auf- Die aktive Elektrode 9 (zum Schneiden und Koaguweisen, die zu entsprechenden Ausgleichsströmen in lieren) und die neutrale Elektrode 10 sind über die der genannten Schleife führen. Mit diesen Ausgleichs- 45 Buchsen 11, 12 an die Sekundärseite des Hochströmen wird das Meßwerk des Meßgerätes zusatz- frequenzübertragers 6 unter Zwischenschaltung des lieh belastet. Trennkondensators 13 angeschlossen. Der Patient 14The active electrode 9 (for cutting and coagulation, the corresponding equalizing currents in lieren) and the neutral electrode 10 are on the lead the loop mentioned. With these compensating 45 sockets 11, 12 to the secondary side of the high currents the measuring mechanism of the measuring device is additional frequency transmitter 6 with the interposition of the borrowed charged. Separating capacitor 13 connected. The patient 14
Aus der französischen Patentschrift 966 342 ist ein ist mit der breitflächigen neutralen Elektrode 10 verHochfrequenz-Chirurgiegerät, bestehend aus einem bunden. Der Elektrokardiograph 15, der die Herz-Hochfrequenzgenerator, der einen Erdanschluß auf- 50 aktionsspannungen des Patienten registriert, hat fünf weist, und einem zwischen dem Hochfrequenzgenera- Anschlüsse 16, 17, 18, 19 und 20, von denen 16, 17, tor und dem Anschluß der aktiven und inaktiven 18,19 in bekannter Weise mit dem Patienten 14 und Chirurgieelektrode angeordneten Hochfrequenzüber- der Anschluß 20 mit dem Erdpunkt 21 im Operationstrager bekannt, bei dem der Hochfrequenzübertrager raum verbunden sind.From the French patent specification 966 342 is a high-frequency surgical device with the wide-area neutral electrode 10, consisting of a bond. The electrocardiograph 15, which is the heart high frequency generator, who registers a ground connection to the patient's 50 action voltages has five has, and one between the high-frequency generators connections 16, 17, 18, 19 and 20, of which 16, 17, tor and the connection of the active and inactive 18,19 in a known manner with the patient 14 and Surgical electrode arranged high frequency over the connection 20 with the earth point 21 in the operation support known, in which the high frequency transmitter are connected space.
galvanisch voneinander getrennte Wicklungen auf- 55 Bei dieser Schaltung würde eine ErdungsschleifeGalvanically separated windings 55 With this circuit, a grounding loop
weist und die Verbindung zwischen der Sekundärseite zwischen den beiden Erdungspunkten 3 und 21 ent-and the connection between the secondary side between the two earthing points 3 and 21
des Hochfrequenzübertragers und dem Anschluß der stehen, wenn der Übertrager 6 — wie dies allgemeinof the high-frequency transformer and the connection of the stand when the transformer 6 - as is generally the case
inaktiven Elektrode mit einem gesonderten Erdungs- üblich ist — eine einseitige galvanische Verbindunginactive electrode with a separate earthing is common - a one-sided galvanic connection
anschluß versehen ist. Eine ähnliche Einrichtung zeigt seiner beiden Übertragerseiten aufweist. Diese stö-connection is provided. A similar device shows its two transmitter sides. These disturb
die deutsche Auslegeschrift 1 146 989. Alle zu erden- 60 rende Erdungsschleife ist in Fig. 1 bis auf diese gal-the German Auslegeschrift 1 146 989. All ground loops to be grounded are shown in Fig. 1 except for this gal-
den Punkte der Schaltung befinden sich beim Gerät vanische Verbindung im Übertrager 6 mit starkenthe points of the circuit are in the device vanic connection in the transformer 6 with strong
nach der französischen Patentschrift innerhalb des Strichen hervorgehoben. Es ist ersichtlich, daß derhighlighted within the line after the French patent specification. It can be seen that the
Gerätegehäuses, was auch für das Gerät nach der einleitend genannte Ausgleichsstrom zwischen 3 undDevice housing, which also applies to the device according to the compensatory current mentioned in the introduction between 3 and
deutschen Auslegeschrift zutreffen wird, so daß die 21 über das Meßgerät fließt und Fehlmessungen her-German interpretation document will apply, so that the 21 flows over the measuring device and incorrect measurements
Erdung von nur einem einzigen gemeinsamen 65 vorruft. Eine Erdung des Übertragers am ErdpunktGrounding only a single common 65 calls. An earthing of the transformer at the earth point
Erdungspunkt aus erfolgt. Bei den bekannten Geräten 21 würde auch keine Abhilfe schaffen, weil dadurchEarthing point takes place. In the case of the known devices 21, there would also be no remedy because it would
tritt demnach eine Erdschleifenbildung im Sinne der nur eine weitere Erdschleife entstünde, wobei deraccordingly occurs a ground loop formation in the sense that only one more ground loop would arise, whereby the
vorstehenden Ausführungen nicht auf. Spannungsabfall, den der Ausgleichsstrom auf einerthe above does not apply. Voltage drop that the equalizing current on a
solchen Erdungsleitung mit sich bringt, vom Meßgerät angezeigt würde.brings such a ground wire with it, from the meter would appear.
In der F i g. 2 ist dargestellt, wie durch die galvanische Trennung der beiden Übertragerseiten und die Erdung der Sekundärseite des Übertragers im Operationsraum bei 21 die genannten Störungen des Meßgerätes vermieden sind.In FIG. 2 shows how the galvanic separation of the two transmitter sides and the Grounding of the secondary side of the transformer in the operating room at 21 the above-mentioned disturbances of the measuring device are avoided.
Bei leistungsstarken Hochfrequenz-Chirurgiegeräten ist es Vorschrift, daß die Verbindung der neutralen Elektrode mit dem Hochfrequenz-Chirurgiegerät durch eine Sicherheitsschaltung überwacht wird. Beim Betrieb einer solchen Schutzschaltung mit Wechselstrom entsteht durch den Spannungsabfall über die notwendige Zuleitung zur neutralen Elektrode eine 50 Hz-Brummspannung gegen Erde, die die Registriergeräte ebenfalls erheblich stören kann. Bei dem die Erfindung aufweisenden Hochfrequenz-Chirurgiegerät wird daher die Sicherheitsschaltung mit gesiebter Gleichspannung betrieben. Die entsprechende Schaltung ist in der F i g. 3 dargestellt: Dabei ist die mit der neutralen Elektrode 10 verbundene Sekundärseite des Übertragers 6 bei 21 geerdet. Der Transformator 22, der aus einer im Generatorgehäuse 1 untergebrachten 50 Hz-Wechselspannungsquelle gespeist wird (nicht dargestellt), arbeitet auf den Gleichrichter23 mit Glättungskondensator24, der einerseits bei 21 geerdet ist und andererseits über das Relais 25 über die Buchse 26 der geerdeten neutralen Elektrode verbunden ist. Wenn die Elektrode 10 versehentlich oder z. B. wegen einer schadhaften Zuleitung nicht geerdet ist, fällt das Relais 25 ab und verhindert über einen Steuerkontakt, daß der Hochfrequenzgenerator eingeschaltet werden kann.In the case of powerful high-frequency surgical devices, it is a requirement that the connection of the neutral Electrode with the high-frequency surgical device is monitored by a safety circuit. At the Operation of such a protective circuit with alternating current occurs due to the voltage drop across the necessary supply line to the neutral electrode a 50 Hz ripple voltage to earth, which the recording devices can also be very disturbing. In the high-frequency surgical device having the invention the safety circuit is therefore operated with filtered DC voltage. The corresponding Circuit is shown in FIG. 3: The secondary side connected to the neutral electrode 10 is shown of the transformer 6 grounded at 21. The transformer 22, which consists of a generator housing 1 housed 50 Hz AC voltage source is fed (not shown), works on the rectifier23 with smoothing capacitor 24, which is grounded on the one hand at 21 and on the other hand via the relay 25 is connected via the socket 26 of the grounded neutral electrode. If the electrode 10 accidentally or z. B. is not grounded because of a defective lead, the relay 25 drops out and prevents via a control contact that the high-frequency generator can be switched on.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES0088050 | 1963-10-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1439302A1 DE1439302A1 (en) | 1969-01-23 |
DE1439302B2 true DE1439302B2 (en) | 1971-05-19 |
Family
ID=7514197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19631439302 Pending DE1439302B2 (en) | 1963-10-26 | 1963-10-26 | High frequency surgical device |
Country Status (3)
Country | Link |
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AT (1) | AT247515B (en) |
CH (1) | CH413144A (en) |
DE (1) | DE1439302B2 (en) |
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-
1963
- 1963-10-26 DE DE19631439302 patent/DE1439302B2/en active Pending
-
1964
- 1964-10-15 AT AT875564A patent/AT247515B/en active
- 1964-10-22 CH CH1372664A patent/CH413144A/en unknown
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Also Published As
Publication number | Publication date |
---|---|
AT247515B (en) | 1966-06-10 |
DE1439302A1 (en) | 1969-01-23 |
CH413144A (en) | 1966-05-15 |
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