US1621279A - Apparatus for controlling and distributing electric currents - Google Patents

Apparatus for controlling and distributing electric currents Download PDF

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Publication number
US1621279A
US1621279A US610049A US61004922A US1621279A US 1621279 A US1621279 A US 1621279A US 610049 A US610049 A US 610049A US 61004922 A US61004922 A US 61004922A US 1621279 A US1621279 A US 1621279A
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US
United States
Prior art keywords
current
branch electrodes
amperemeter
electrodes
terminal
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Expired - Lifetime
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US610049A
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English (en)
Inventor
Roucayrol Ernest
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Individual
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Individual
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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
    • A61N1/02—Details
    • A61N1/08—Arrangements or circuits for monitoring, protecting, controlling or indicating

Definitions

  • Thisinvention relates to an apparatus for distributing electric current to a plurality of electrodes, the distribution being measured by. means of a single amperemeter. Said apparatus is particularly adapted for useintherapeutic applications of electricity by using high frequency alternating currents, andmay also be used with direct current. V
  • electrodes are applicd'to saidpoints of the patientsbody and in the mostcases one, of said. electrodes, which I call main electrode, is applied to an inner point. of the-body by introducing it into a cavity thereof, and one or several of the other electrodes which I call branch electrodes are put in contact with one or several outer points of the surface of the body.
  • the accompanying drawing shows by way of example a diagram of the connections of the apparatus according to the invention in the case where three branch electrodes and one main electrode are used.
  • the source o1 current is connected totterminals 1 and 2; the main electrode is diagrammatically shown at 3 and the branch electrodes at 1, 5 and 6. Moreover, the device is provided with three rheostats or adjustable resistances 7, 8 and 9, the movable arms 01 which are shown at a, b and c, three single pole-double throw switches 10, 11 and 12, and a single amperemeter 18. Said dit ferent elements are connected as shown on the drawing.
  • the drawing shows at 10, 11 and 12 the switches in three various positions.
  • the method of use of the device is as follows: Assuming that the branch electrodes and main electrode are applied in any suitable positions on the human body, for instance by introducing the main electrode into a cavity of said body and placing the branch electrodes erteriorly on the skin of the same, and further that all the switches are in the position indicated at 10, no current willpass through theamperemeter 13. Now, it the operator desires to measure the strength of the current that flows.
  • the amperemeter 13 indicates either the intensity of the current flowing through one of the branch electrodes, or of the total current. flowing through two branch electrodes, or of the total current flowing through all branch electrodes or through the main electrode. If it is desired the amperemeter may also be cut out of circuit.
  • the positions of the switches are such that the current which flows through the branch electrode 1, passes through terminal 1, amperemeter 13 which indicates its intensity, rheostat' 9, branch electrode 4, main electrode 3 and terminal 2, while the current flowing through the branch electrodes 5 and 6, passes respectively through terminal 1, rheostats 7 and 8, branch electrodes 5 and 6, electrode 3, and terminal 2 without flowing through the amperemeter 13.
  • the branch electrodes may be in any number whatever involving an equal number of rheostats.
  • the intensities of the branched current flowing through the branch electrodes depend from the electrical resistance of the parts of the patients body located between said branch electrodes and the main electrode and also from the variable resistances of the rheostats put in circuit with said branch electrodes. If supposing the efiective electric tension at the terminals 1 and 2 keeps a constant value, it is possible by means of said rheostats to vary independently from each other, the ef-' fective intensities of the current flowing through the branch electrodes. Further by acting on the source of current before the terminals 1 and 2, it will be possible to vary simultaneously the intensities of all the said branched currents.
  • the main electrode 3 may be constituted by one or a plurality of plates.
  • An apparatus for distributing, regulating and measuring electric currents for electrotherapic uses comprising one main electrode, several branch electrodes, one amperemeter, a line connecting said main electrode to one pole of a source of current, means for electrically connecting one terminal of the amperemeter to the other pole of the source of current, several adjustable rheostats each corresponding to one of said branch electrodes, several throw-over switches without break each corresponding to one of said rheostats, means for electrically connecting one terminal of each rheostat to the corresponding branch electrode, means for electrically connecting the other terminal of each rheostat to the main terminal of the corresponding switch, means for electrically connecting one branch terminal of each switch to the pole of the source of current which is connected to the amperemeter, and means for electrically connecting the other branch terminal of each switch to the other terminal of the amperemeter.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Neurology (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)
  • Measurement Of Current Or Voltage (AREA)
  • Electrotherapy Devices (AREA)
US610049A 1922-01-06 1922-12-30 Apparatus for controlling and distributing electric currents Expired - Lifetime US1621279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR393354X 1922-01-06

Publications (1)

Publication Number Publication Date
US1621279A true US1621279A (en) 1927-03-15

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ID=8896250

Family Applications (1)

Application Number Title Priority Date Filing Date
US610049A Expired - Lifetime US1621279A (en) 1922-01-06 1922-12-30 Apparatus for controlling and distributing electric currents

Country Status (3)

Country Link
US (1) US1621279A (fr)
DE (1) DE393354C (fr)
FR (1) FR545666A (fr)

Also Published As

Publication number Publication date
DE393354C (de) 1924-04-01
FR545666A (fr) 1922-10-18

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