DE494829C - Safety device on high-frequency medical devices with radio interference protection - Google Patents

Safety device on high-frequency medical devices with radio interference protection

Info

Publication number
DE494829C
DE494829C DEJ35048D DEJ0035048D DE494829C DE 494829 C DE494829 C DE 494829C DE J35048 D DEJ35048 D DE J35048D DE J0035048 D DEJ0035048 D DE J0035048D DE 494829 C DE494829 C DE 494829C
Authority
DE
Germany
Prior art keywords
safety device
radio interference
capacitor
interference protection
medical devices
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.)
Expired
Application number
DEJ35048D
Other languages
German (de)
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.)
JENALIT GmbH
Original Assignee
JENALIT GmbH
Publication date
Priority to DEJ35048D priority Critical patent/DE494829C/en
Application granted granted Critical
Publication of DE494829C publication Critical patent/DE494829C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B15/00Suppression or limitation of noise or interference
    • H04B15/02Reducing interference from electric apparatus by means located at or near the interfering apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electrotherapy Devices (AREA)
  • Magnetic Treatment Devices (AREA)

Description

Sicherheitsvorrichtung an Hochfrequenz-Heilgeräten mit einem Rundfunkstörschutz Bei Hochfrequenzgeräten, welche mit Vorrichtung zur Verhinderung von Rundfunkstörungen ausgerüstet sind, wird, um eine wirksame Störbefreiung zu erzielen, eine Metallelektrode oder ein metallumkleideter Handgriff von der sich behandelnden Person umfaßt werden. Diese Elektrode oder Handgriff steht im allgemeinen über einen Kondensator mit der Anschlußleitung in Verbindung. Bei Durchschlag des Kondensators erhält der Handgriff Netzspannung, und die sich behandelnde Person ist gefährdet.Safety device on high-frequency healing devices with radio interference protection In the case of high-frequency devices that have a device to prevent radio interference are equipped, in order to achieve effective interference elimination, a metal electrode or a metal-clad handle can be grasped by the treating person. This electrode or handle is generally connected to the capacitor via a capacitor Connection line in connection. If the capacitor breaks down, the handle is retained Mains voltage, and the treating person is at risk.

Die vorliegende Konstruktion vermeidet diesen Übelstand dadurch, daß in die Leitung vom Blockierungskondensator zur zweiten Elektrode oder zum Handgriff die Wicklung eines Relais gelegt wird, welches dann anspricht, sowie ein Durchschlag des Schutzkondensators erfolgt, und automatisch die Speiseleitungen kurzschließt.The present construction avoids this drawback in that into the line from the blocking capacitor to the second electrode or to the handle the winding of a relay is placed, which then responds, as well as a breakdown of the protective capacitor takes place and automatically short-circuits the feed lines.

Die Abbildung zeigt schematisch diese Vorrichtung, und zwar bei Verwendung eines Mehrfach-Schutzkondensators; die Verwendung bei einfachen Schutzkondensatoren ist analog. Buchstabe c, und b bezeichnen die beiden Speiseleitungen des Apparates. c ist ein Dreifach-Schutzkondensator, welcher mit seinen beiden äußeren Belegungen an die Leitungen a und b angeschlossen ist. Die mittlere Belegung führt über die Leitung d zur erfindungsgemäßen Schutzvorrichtung e und von da zur Hilfselektrode f. Die Schutzvorrichtung e ist ihrerseits durch die Leitungen g und la mit den beiden Speiseleitungen a und b verbunden. Erfolgt jetzt ein Erdschluß dadurch, daß der Kondensator c von a nach d durchschlägt, so fließt über die Erde, den Körper des sich mit dem Apparat Behandelnden, über f, d und die Schutzeinrichtung e Netzstrom, welcher das Relais e zum Ansprechen bringt und nun die beiden Leitungen a und b über die Zuleitungen h und g kurzschließt. Die Kurzschließung erfolgt durch die beiden Anker i und lt. Durch den Kurzschluß der Netzleitungen werden die .im Netz stets vorhandenen Sicherungen zum Durchbrennen gebracht, so "daß eine Gefährdung der Person, welche die Hilfselektrode f umklammert, vermieden wird.The figure shows this device schematically, with the use of a multiple protective capacitor; the use of simple protective capacitors is analogous. Letters c and b designate the two feed lines of the apparatus. c is a triple protective capacitor, which is connected with its two outer assignments to lines a and b. The middle occupancy leads via the line d to the protective device e according to the invention and from there to the auxiliary electrode f. The protective device e is in turn connected by the lines g and la to the two feed lines a and b . If an earth fault now occurs because the capacitor c breaks down from a to d , then mains current flows through the earth, the body of the person using the device, through f, d and the protective device e, which causes the relay e to respond and now short-circuits the two lines a and b via the supply lines h and g. The short-circuit is carried out by the two armatures i and lt. The short-circuit of the power lines causes the fuses that are always present in the network to burn out, so that endangering the person clasping the auxiliary electrode f is avoided.

Um den hochfrequenten Strom vom Relais fernzuhalten, wird die Magnetspule mit einem Kondensator überbrückt.To keep the high-frequency current away from the relay, the solenoid is used bridged with a capacitor.

Claims (2)

PATENTANSPRÜCHE: r. Sicherheitsvorrichtung an Hochfrequenz-Heilgeräten mit einem Rundfunk störschutz, der aus einer Hilfselektrode oder einem einen Metallmantel tragenden Handgriff für die Behandlungselektrode besteht, die bzw. der über einen Blockier:ungskondensator mit dem Netz verbunden ist, dadurch gekennzeichnet, daß zwischen der Hilfselektrode oder dem Metallmantel des Handgriffs des Heilgerätes und dem Blockierungskondensator, welcher die Hilfselektrode mit dem Netz verbindet, die Wicklung eines Relais eingeschaltet ist, welches bei Durchschlag des Blockierungskondensators anspricht und die Speiseleitung des Gerätes kurzschließt. PATENT CLAIMS: r. Safety device on high-frequency healing devices with a radio interference protection, which consists of an auxiliary electrode or a metal jacket carrying handle for the treatment electrode, which or via a Blocking: ungskondensator is connected to the network, characterized in that between the auxiliary electrode or the metal jacket of the handle of the healing device and the blocking capacitor, which connects the auxiliary electrode to the network, the winding of a relay is switched on, which when the blocking capacitor breaks down responds and short-circuits the supply line of the device. 2. Sicherheitsvorrichtung nach Anspruch z, dadurch gekennzeichnet, daß die Relaiswicklung durch einen Kondensator überbrückt ist.2. Safety device according to claim z, characterized in that the relay winding is formed by a capacitor is bridged.
DEJ35048D Safety device on high-frequency medical devices with radio interference protection Expired DE494829C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEJ35048D DE494829C (en) Safety device on high-frequency medical devices with radio interference protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ35048D DE494829C (en) Safety device on high-frequency medical devices with radio interference protection

Publications (1)

Publication Number Publication Date
DE494829C true DE494829C (en) 1930-03-27

Family

ID=7205288

Family Applications (1)

Application Number Title Priority Date Filing Date
DEJ35048D Expired DE494829C (en) Safety device on high-frequency medical devices with radio interference protection

Country Status (1)

Country Link
DE (1) DE494829C (en)

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