GB743884A - Short-wave treatment apparatus - Google Patents

Short-wave treatment apparatus

Info

Publication number
GB743884A
GB743884A GB24506/53A GB2450653A GB743884A GB 743884 A GB743884 A GB 743884A GB 24506/53 A GB24506/53 A GB 24506/53A GB 2450653 A GB2450653 A GB 2450653A GB 743884 A GB743884 A GB 743884A
Authority
GB
United Kingdom
Prior art keywords
relay
anode
motor
sept
resonance
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
GB24506/53A
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 Reiniger Werke AG
Original Assignee
Siemens Reiniger Werke 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 Reiniger Werke AG filed Critical Siemens Reiniger Werke AG
Publication of GB743884A publication Critical patent/GB743884A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/04—Sources of current
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/40—Applying electric fields by inductive or capacitive coupling ; Applying radio-frequency signals
    • A61N1/403—Applying electric fields by inductive or capacitive coupling ; Applying radio-frequency signals for thermotherapy, e.g. hyperthermia
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/46—Dielectric heating
    • H05B6/48—Circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/46—Dielectric heating
    • H05B6/48—Circuits
    • H05B6/50—Circuits for monitoring or control

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

743,884. Electro-medical apparatus. SIEMENS-REINIGER-WERKE AKT.-GES. Sept. 4, 1953 [Sept. 10, 1952], No. 24506/53. Class 81(2). [Also in Group XL(c)] In radio frequency heating or diathermy apparatus subject to variations in tuning of the load circuit due, e.g. to movement of the patient or object to be treated, the load tuning is constantly cyclically varied by a motor M driving a load circuit capacitor C 2 and the speed of the motor is arranged to be reduced at resonance by a relay A responsive to the difference between anode and grid currents at resonance of the oscillator valve V 1 , measured as a difference in voltage across anode and grid circuit resistors Ra, Rg. To this end the relay A introduces a series resistor P in the motor drive. At the same time the relay may also increase the anode voltage by alternating the tapping of the transformer secondary which energizes the valve V 1 .
GB24506/53A 1952-09-10 1953-09-04 Short-wave treatment apparatus Expired GB743884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE316964X 1952-09-10

Publications (1)

Publication Number Publication Date
GB743884A true GB743884A (en) 1956-01-25

Family

ID=6150632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24506/53A Expired GB743884A (en) 1952-09-10 1953-09-04 Short-wave treatment apparatus

Country Status (3)

Country Link
CH (1) CH316964A (en)
FR (1) FR1083210A (en)
GB (1) GB743884A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126098A (en) * 1982-08-13 1984-03-21 Metronex Engineering Pty Ltd Diathermy apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126098A (en) * 1982-08-13 1984-03-21 Metronex Engineering Pty Ltd Diathermy apparatus

Also Published As

Publication number Publication date
CH316964A (en) 1956-10-31
FR1083210A (en) 1955-01-06

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