US2106429A - Electrotherapeutic apparatus - Google Patents

Electrotherapeutic apparatus Download PDF

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Publication number
US2106429A
US2106429A US703383A US70338333A US2106429A US 2106429 A US2106429 A US 2106429A US 703383 A US703383 A US 703383A US 70338333 A US70338333 A US 70338333A US 2106429 A US2106429 A US 2106429A
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United States
Prior art keywords
circuit
short
wave
long wave
terminals
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Expired - Lifetime
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US703383A
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English (en)
Inventor
Hofmann Josef
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.)
ELEK CITATSGESELLSCHAFT SANITA
Elektricitatsgesellschaft "sanitas" G M B H
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ELEK CITATSGESELLSCHAFT SANITA
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Publication of US2106429A publication Critical patent/US2106429A/en
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Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • This invention relates to electro-therapeutic apparatus, and more particularly to short and/or ultra short wave diathermic apparatus wherein the high frequency oscillations are produced by a 5 series spark gap. 7
  • One of the objects of the invention is to provide diathermy apparatus which may be used for long wave as well as short wave diathermy.
  • Another object ofthe invention is to providediathermy apparatus having a short wave oscillatorycircuit and along wave oscillatory circuit and means whereby either of said circuits may be supplied with oscillatory energy.
  • a further object of the invention is to provide a short or ultra short wave diathermy apparatus with a long wave attachment to enable said apparatus to be used alternatively for either short or long wave treatment-
  • Fig. 1 is a diagrammatic illustration of one illustrative embodiment of the invention:
  • Fig. 2 shows a cabinet containing a short wave diathermy apparatus, a long wave apparatus being separately afiixed externally thereto..
  • the invention contemplates the provision of means whereby said diathermy apparatus ma; be used for long wave as well as short wave diathermy.
  • auxiliary device Said device may be connected electrically to the connecting bushings of the electrodes of the short wave generator.
  • said auxiliary device "or attachment may consist of a self-inductance coil of suitable dimensions and connecting the connecting terminal sleeves of the apparatus together. Suitable means may be provided for a fine adjustment of the long wave energy.
  • any suitable .regulating means may be provided for this P pose, such for example as a potentiometer providedparallel tov said auxiliary spark gap 36 which connects the terminals of said condenser directly one to the other.
  • Said .spark-gap may be of any suitable shape but herein is shown as a substantially circular memher.
  • An auxiliary circuit comprising a capacity 38 and self-inductance 40 is provided parallel to said spark gap, said self-inductance 46] being as large as possible while stillpermitting said capacity 38 to exert an adequate quenching action upon the said spark gap.
  • Said impulse circuit comprising said condenser 34 and-series spark gap 35 may be coupled in any suitable manner (by an inductive, or capacity coupling or directly by conductors) to the treating circuit.
  • said capacity or condenser 34 is used for this purpose, condensers 42, 42 being provided to protect the patient from low.frequency alternations, in the-conductors leading to the connecting bushings .44 of the short wave condenser electrodes.
  • said auxiliary device or attachmentfor the gen-' eration of long waves comprises a self inductance coil 46 which is electrically; connected to the terminal bushings for connecting with the electrodes, said coil 46 being of such dimensions that it forms a long wave oscillatory circuit in conjunction with said condensers 42, 42.
  • a potentiometer 48 of any suitable conventional construction may be provided parallel to said coil 45 for effecting a fine regulation or adjustment in .order that the long wave energy may be conveyed with the desired strength to the;connecting terminals 50 of the diathermy and surgical electrodes.
  • FIG. 2 there is shown a cabinet containing the 'short wave generator, a switch 52 being provided for connecting the apparatus to and disconnecting it from the main supply of electrical energy. Regulation of the impulse circuit relative to the treating circuit is eifected by the rotary.”
  • the long wave generating device is shown as a separate attachment herein contained in a removable casing or container 56, provided with the connecting contact pins to be inserted in suitable sockets in the'frontwall of said cabinet when the apparatusis to be used for long wave treatment.
  • the said connecting contact pins are withdrawn from said sockets forming the terminals of the short wave circuit, and the whole container 56 is removed, and a set of treating electrodes are connected up to the said sockets for the short wave treatment.
  • the long wave energy is regulated by the rotary handle 58.
  • Electro-therapeutic apparatus for generating short or ultra short waves, comprising, in combination, means to generate short waves including an impulse circuit; containing a condenser; a series spark-gap having its two ends connected to the two terminals, respectively, of said condenser; an auxiliary circuit parallel to said spark gap; a self-inductance and a capacity in said auxiliary circuit, said self-inductance being as large as feasible without danger of arcing at said spark-gap terminals serving to connect said short wave generator with the electrodes for short wave treatment; a long wave generating circuit corn-' prising said spark gap and condenser means and means to connect said long wave generating circult to said terminals.
  • any suitable conven short or ultra short waves comprising, in combination, an impulse circuit; a condenser in said circuit; a series spark-gap having its two ends connected to the two terminals, respectively, of said condenser; an auxiliary circuit parallel to said spark-gap; a self-inductance and a capacity in said auxiliary circuit, said self-inductance being as large as feasible without danger of arcing at said spark-gap; a short wave treating circuit; a capacity coupling between said short wave treating circuit and,,said impulse circuit; condensers in said short wave treating circuit; terminals for connecting electrodes with said short wave treatingrcircuit; an attachment forconnection to said terminals and comprising a self-inductance coil connecting said terminals, said coil cooperating with said condensers in said treating circuit to generate long wave oscillations for. passing heat through the tissues ofthe body and for high frequency surgical operations.
  • Electro-therapeutic apparatus for generating short or ultra short waves comprising a potentiometer provided parallel to said self-inductance coil of said attachment for fine regulation or adjustment of the long wave energy.
  • Apparatus of the class described comprising, in combination, a source of oscillations; at short .wave oscillating circuit supplied by said source of oscillations; a treating circuit'coupled to said source of oscillations and provided with terminals for connection with electrodes to deliver short wave oscillations; a self-inductance coil; and means to connect said coil to said terminals, said coil thus forming with said treating circuit a long wave oscillating circuit supplied by said source of oscillations to deliver long wave oscillations.

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  • 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)
  • Magnetic Treatment Devices (AREA)
  • Surgical Instruments (AREA)
US703383A 1932-12-23 1933-12-21 Electrotherapeutic apparatus Expired - Lifetime US2106429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE431192X 1932-12-23

Publications (1)

Publication Number Publication Date
US2106429A true US2106429A (en) 1938-01-25

Family

ID=6485288

Family Applications (1)

Application Number Title Priority Date Filing Date
US703383A Expired - Lifetime US2106429A (en) 1932-12-23 1933-12-21 Electrotherapeutic apparatus

Country Status (4)

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US (1) US2106429A (pt)
BE (1) BE400495A (pt)
FR (1) FR766047A (pt)
GB (1) GB431192A (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567850A (en) * 1946-04-30 1951-09-11 Joseph C R Licklider Pulse generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567850A (en) * 1946-04-30 1951-09-11 Joseph C R Licklider Pulse generator

Also Published As

Publication number Publication date
GB431192A (en) 1935-06-24
FR766047A (fr) 1934-06-20
BE400495A (pt)

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