US2465838A - Electronic valve apparatus for electrotherapy - Google Patents

Electronic valve apparatus for electrotherapy Download PDF

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Publication number
US2465838A
US2465838A US605695A US60569545A US2465838A US 2465838 A US2465838 A US 2465838A US 605695 A US605695 A US 605695A US 60569545 A US60569545 A US 60569545A US 2465838 A US2465838 A US 2465838A
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Prior art keywords
switch
current
switches
anode
action
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Expired - Lifetime
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US605695A
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English (en)
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Bernard Pierre Denis
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Priority claimed from GB1952145A external-priority patent/GB611618A/en
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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
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents

Definitions

  • electrotherapeutics use electric currents defined by curves the shapes of which vary to suit the medical purpose which is sought in each particular instance.
  • a current modulated at a cadence equal to several seconds is required for certain medical treatments such for example as the treatment of pains commonly designated by algies, while for certain other medical treatments, particularly the treatment of atonies and for the diagnosis of neuro-muscular states, currents syncopated at a short cycle rhythm are to be preferred.
  • the present invention has for its object to provide a novel apparatus incorporating electronic valves and utilisable in electrotherapy, said apparatus having such an improved construction as to permit selectively to obtain either of the currents having the aforesaid characteristic curve shapes to suit the required healing treatments.
  • Another object of the invention is to provide an apparatus as aforesaid having such an improved construction as to enable a change over from single undulatory frequency to undulatory frequency having twice the value of the former frequency, thereby enhancing the therapeutic-a1 effects by doing away with any accustoming of the patient to any given stationary frequency.
  • a further object of the invention is to provide an apparatus as aforesaid wherein variations obtained by the action of primary switchmeans are comparatively rapid and suitable for the treatment of atonies, while the actions obtained by secondary switch means are comparatively slow and appropriate for healing algies.
  • a still further object of the invention is to provide an apparatus as aforesaid including oscillographic means permitting the shape of curve of the delivered current to be visualized, thereby greatly facilitating the use of the apparatus while increasing its handiness.
  • the invention comprises the novel construction and combination of parts that will now be described in detail with reference to the accompanying diagrammatic drawing exemplifying the same and forming a part of the present disclosure.
  • I Fig. 1 is a view of the apparatus represented in its entirety, some parts being shown diagrammatically, others being shown isometrically.
  • Figs. 2, 3, 4 and are curves showing several current shapes which are obtainable by means of an oscillograph of usual construction embodied in the apparatus and providing constant direction wiping action.
  • Figs. 6, 7, 8 and 9 are curves obtainable with the apparatus shown in Fig. 1 and fitted with an alternating wiping oscillograph.
  • a hand controlled switch I is connected to the anode line for the valve 5.
  • the anode of the valve 5 is fed through a switch 8 supported by a carrier 9 cperable by a cam IE! for rocking action about a pivotal joint
  • Another switch I2 is connected to the heating leads for the cathode 6' of the valve 5', said switch I2 being supported by a carrier I3 capable of performing a rocking motion about a pivotal joint Hi under the influence of a cam IS.
  • the cams Ill, l5 may be mounted either on separate pins or (as shown by the drawing) on a common shaft l6 actuated through a speed-reducing gear I I by a motor I8.
  • the shape of these cams is selected for enabling the switch 8 to perform a. quicker rocking motion than the switch 2.
  • the showing presupposes that the ratio of frequencies of these rocking motions is 1 to 7, the switch 3 effecting say one rocking motion per second.
  • 9 permits selectively to short-circuit either the switch 8 (position of switch
  • the rectified current is delivered to a potentiometer which supplies output terminals 2
  • any suitable number of condensers such as 24, 25 which may be put into action or out of action by means of a. pair of switches 26, 21.
  • the horizontal plates 28 of a cathodic oscillograph 29 are connected to the output terminals 2
  • the transformer winding 3 and the electronic valves 5, build up a rectifier which supplies a current whose rectified shape may be altered in the following manner: Opening of the switch 1 permits one half-wave of the rectified current to be cancelled.
  • the reversing switch I9 is brought to its right hand side position (shown in dotted lines) the switch I2 is short-circuited, thereby starting permanent heating of the cathode '6', while the switch 8 is inserted into the anode line for thevalve 5 which cuts off the anode current of the valve 5' at a rhythm or cadence which responds to the shape and rotating speed of the cam l0. Under such conditions, the anode current is either cut. off. orv
  • the condenser 24 (which has a relatively low capacity) is set into operation by means of a contactor 26. Eherefore even if the current is switched in at the peak moment of the half-wave, it grows in accordancewith an exponential function (side A of Fig. 3) and decreases exponentially (side B of Fig; 3') when, responsive to the action of the cam It, the switch 8 establishes or cuts oil the anode line; During the A-B interval, the half-wave shape is no longer exactly sinusoidal but exponential.
  • This shape of syncopated current is particularly suitable for treating and healing atonies.
  • the reversing switch i9 When the reversing switch i9 is brought to its left hand side position, it short circuits the switch 8 butinserts the switch it into the heating line for: the cathode 6'. Owing to the action of the cam iii, the heating current is thereby out off at a.
  • cams Ill and IE5 or to the difference in the revolving speeds if said cams are mounted on different axes.
  • the assembly is so adjusted as to cause the switch l2 to effect approximately a.
  • Fig. l is obtained; still'assuming the switch 1 to remain open.
  • the current grows but fairly slowly owing to the thermal inertia of'the cathode 5'.
  • point B the heating current begins to decrease slowly.
  • the slow varying current shape supplied by the valve 5 shown inFig. 4 is completed by the current from the valve 5 which in each period or cycle suppliesmaximum power as indicated at 34. Therefore the current comprises a pair of components one'of which is supplied by the valve 5 andremains invariably at its peak value, while the other one is modulated by the action of the switch l2 and slowly increases or decreases as the case-may. be.
  • the apparatus also comprises an oscillographic device by means of which the shape of the supplied current may be visualized.
  • This device comprises either an oscillograph of any known type capable of giving currents connoted by the curves shown in Figs. 2 to 5 or preferably (as shown in the embodiment illustrated in Fig. 1) an oscillographic tube in which the horizontal wiping action takes place alternately and provides currents whose representative curves belong to the Lissajou type as shown in Figs. 6 to 9.
  • the voltage fed at the terminals 2! is supplied to the horizontal plates 28 of the cathodic oscillograph tube, while the vertical plates 30 (for the horizontal wiping action) are subjected to an alternating voltage tapped from the feeding transformer.
  • An adjustable or invariable phase shiftaction of this voltage may be obtained by customary processes so as to obtain a characteristic curve connoting the general shape of the current as used.
  • Fig. 6 is shown the shape of the current curve when using one half-wave.
  • Fig. 7 is shown shape of the current curve when using the other half-wave.
  • Fig. 8 is shown the case where, by means of a remanent screen, the nature of the phase progression (whether rapid or slow, increasing or decreasing) is visualized.
  • An electrotherapeutical apparatus adapted particularly for the treatment of differentiated pains of the human body comprising a rectifier including two electronic tubes arranged in parallel, anode feeding circuits therefor, cathodeheating circuits for said tubes, switches inserted respectively in the anode feeding circuit and the cathode heating circuit associated with one of the tubes, power means, two cams controlled by said power means and adapted to operate said switches at different rhythms and a hand controlled change over switch inserted in the last mentioned anode feeding circuit and cathode heating circuit and adapted to provide selective short circuitin of at least one of the last mentioned switches and a further hand controlled switch inserted in the anode circuit of the tube other than that submitted to the action of the two rhythmically controlled switches.
  • a rectifier including two electronic tubes arranged in parallel, anode feeding circuits therefor, cathodeheating circuits for said tubes, switches inserted respectively in the anode feeding circuit and the cathode heating circuit associated with one of the tubes, power means, two cams controlled by said power means and adapted to operate said switches at different rhythms, a hand controlled change over switch inserted in the last mentioned anode feeding circuit and cathode heating circuit, and adapted to provide selective short circuiting of at least one of the last mentioned switches, a further hand controlled switch inserted in the anode circuit of the tube other than that submitted to the action of the two rhythmically controlled switches, a transformer including a primary and three secondaries two of which are adapted to feed respectively the cathode heating circuits and the anode feeding circuits and provided with medial tappings, output terminals fed by said medial tappings, an oscillographic device adapted to visualize the curves of the rectified currents supplied by the medial tappings
  • An electrotherapeutical apparatus adapted particularly for the treatment of differentiated pains of the human body comprising a rectifier including two electronic tubes arranged in parallel, anode feeding circuits therefor, cathode heating circuits for said tubes, switches inserted respectively in the anode feeding circuit and the cathode heating circuit associated with one of the tubes, power means, two cams controlled by said power means and adapted to operate said switches at different rhythms, a hand controlled change over switch inserted in the last mentioned anode feeding circuit and cathode heating circuit, and adapted to provide selective short circuiting of at least one of the last mentioned switches, a further hand controlled switch inserted in the anode circuit of the tube other than that submitted to the action of the two rhythmically controlled switches, a transformer including a primary and three secondaries two of which are adapted to feed respectively the cathode heating circuits and the anode feeding circuits and provided with medial tappings, output terminals fed by said medial tappings, a cathode ray tube adapted to visualize the curves of the
  • An electrotherapeutical apparatus adapted particularly for the treatment of differentiated pains of the human body comprising a rectifier including two electronic tubes arranged in parallel, anode feeding circuits therefor, cathode heating circuits for said tubes, switches inserted respectively in the anode feeding circuit and the cathode heating circuit associated with one of the tubes, power means, two cams controlled by said power means and adapted to operate said switches at different rhythms, a hand controlled change over switch inserted in the last mentioned anode feeding circuit and cathode heating circuit, and adapted to provide selective short circuiting of at least one of the last mentioned switches, a further hand controlled switch inserted in the anode circuit of the tube other than that submitted to the action of the two rhythmically controlled switches, a transformer including a primary and three secondaries two of which are adapted to feed respectively the cathode heating circuits and the anode feeding circuits and provided with medial tappings, output terminals for the rectifier current, a potentiometer including an input and an output connected respectively with the intermediate tappings

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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)
  • Electrotherapy Devices (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
US605695A 1942-09-04 1945-07-18 Electronic valve apparatus for electrotherapy Expired - Lifetime US2465838A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2465838X 1942-09-04
GB1952145A GB611618A (en) 1945-07-30 1945-07-30 Electronic valve apparatus for electrotherapy

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US2465838A true US2465838A (en) 1949-03-29

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US (1) US2465838A (ja)
BE (1) BE482919A (ja)
CH (1) CH257243A (ja)
DE (1) DE811709C (ja)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695021A (en) * 1948-12-09 1954-11-23 Touzel Georges High-frequency apparatus for medical purposes
US3030526A (en) * 1956-11-15 1962-04-17 Parisienne D Expl Des Ets Liss Apparatus for producing a pulsating current
US3051165A (en) * 1959-10-14 1962-08-28 Honeywell Regulator Co Apparatus for automatically measuring blood pressure and pulse rate
US3261358A (en) * 1959-03-20 1966-07-19 Bernard Pierre Denis Source of current for application to a patient for obtaining a therapeutic effect
US3880170A (en) * 1971-09-22 1975-04-29 Treta Gradska Bolnitza Method for medical treatment of joints, muscles, the nervous system and others
US4763656A (en) * 1985-06-13 1988-08-16 Beatrice T. Kester Transcutaneous electrical nerve stimulation device and method
DE3890913T1 (de) * 1987-11-10 1990-09-20 Piet Hein Einrichtung zur beeinflussung eines organismus
US5108361A (en) * 1987-11-10 1992-04-28 Piet Hein Device for influencing an organism
US5300096A (en) * 1992-06-03 1994-04-05 Hall H Eugene Electromyographic treatment device
US6443732B2 (en) 2000-03-16 2002-09-03 Barston International Ltd. Apparatus and method for treating infected tooth using ionophoresis

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970276C (de) * 1951-11-29 1958-09-04 Hermann Staehle Fa Dipl Ing Elektromedizinisches Behandlungsgeraet zur Schmerzbekaempfung durch periodisch variierende Stroeme
BE507742A (ja) * 1951-12-11
DE950585C (de) * 1952-10-03 1956-10-11 Walter Schellenberger Von Hand angetriebener Reizstromgenerator
DE1131335B (de) * 1956-11-15 1962-06-14 Parisienne D Expl Des Etabliss Schaltanordnung zur Erzeugung einer Reizspannung fuer medizinische Zwecke
AT296496B (de) * 1969-10-29 1972-02-10 Nemec Hans Elektromedizinischer Apparat für Reizstromtherapie
FR2420979A1 (fr) * 1978-03-28 1979-10-26 Guillot Jacqueline Moulage electroconducteur

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE535934C (de) * 1929-06-23 1931-10-17 Koch & Sterzel Akt Ges Einrichtung zur Erzeugung von periodisch ansteigendem und abfallendem pulsierenden Gleichstrom oder faradischem Strom aus einem Wechselstrom
US1908688A (en) * 1929-06-06 1933-05-16 Gen Electric X Ray Corp Electrotherapeutic apparatus
US1946176A (en) * 1931-01-19 1934-02-06 Wappler Electric Company Inc X-ray system
US1972159A (en) * 1931-11-20 1934-09-04 Westinghouse X Ray Co Inc Method and apparatus for controlling x-ray intensity
US1992100A (en) * 1931-06-20 1935-02-19 Stein Wilhelm Testing flaws and the like in working materials
US2028338A (en) * 1931-10-30 1936-01-21 Hygrade Sylvania Corp Electrical apparatus
US2094379A (en) * 1932-02-09 1937-09-28 Westinghouse Electric & Mfg Co Control for electric vacuum discharge apparatus
US2265025A (en) * 1940-09-27 1941-12-02 Westinghouse Electric & Mfg Co Electromagnetic inspection system
US2311935A (en) * 1939-03-13 1943-02-23 Joseph H Dobert Electrophysiotherapeutical apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1908688A (en) * 1929-06-06 1933-05-16 Gen Electric X Ray Corp Electrotherapeutic apparatus
DE535934C (de) * 1929-06-23 1931-10-17 Koch & Sterzel Akt Ges Einrichtung zur Erzeugung von periodisch ansteigendem und abfallendem pulsierenden Gleichstrom oder faradischem Strom aus einem Wechselstrom
US1946176A (en) * 1931-01-19 1934-02-06 Wappler Electric Company Inc X-ray system
US1992100A (en) * 1931-06-20 1935-02-19 Stein Wilhelm Testing flaws and the like in working materials
US2028338A (en) * 1931-10-30 1936-01-21 Hygrade Sylvania Corp Electrical apparatus
US1972159A (en) * 1931-11-20 1934-09-04 Westinghouse X Ray Co Inc Method and apparatus for controlling x-ray intensity
US2094379A (en) * 1932-02-09 1937-09-28 Westinghouse Electric & Mfg Co Control for electric vacuum discharge apparatus
US2311935A (en) * 1939-03-13 1943-02-23 Joseph H Dobert Electrophysiotherapeutical apparatus
US2265025A (en) * 1940-09-27 1941-12-02 Westinghouse Electric & Mfg Co Electromagnetic inspection system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695021A (en) * 1948-12-09 1954-11-23 Touzel Georges High-frequency apparatus for medical purposes
US3030526A (en) * 1956-11-15 1962-04-17 Parisienne D Expl Des Ets Liss Apparatus for producing a pulsating current
US3261358A (en) * 1959-03-20 1966-07-19 Bernard Pierre Denis Source of current for application to a patient for obtaining a therapeutic effect
US3051165A (en) * 1959-10-14 1962-08-28 Honeywell Regulator Co Apparatus for automatically measuring blood pressure and pulse rate
US3880170A (en) * 1971-09-22 1975-04-29 Treta Gradska Bolnitza Method for medical treatment of joints, muscles, the nervous system and others
US4763656A (en) * 1985-06-13 1988-08-16 Beatrice T. Kester Transcutaneous electrical nerve stimulation device and method
DE3890913T1 (de) * 1987-11-10 1990-09-20 Piet Hein Einrichtung zur beeinflussung eines organismus
US5108361A (en) * 1987-11-10 1992-04-28 Piet Hein Device for influencing an organism
US5300096A (en) * 1992-06-03 1994-04-05 Hall H Eugene Electromyographic treatment device
US6443732B2 (en) 2000-03-16 2002-09-03 Barston International Ltd. Apparatus and method for treating infected tooth using ionophoresis

Also Published As

Publication number Publication date
DE811709C (de) 1951-08-23
CH257243A (fr) 1948-09-30
BE482919A (ja)

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DE669993C (de) Anordnung zur Steuerung wechselstromgespeister Punkt- oder Punktnahtschweissmaschinen