US3902502A - Apparatus for temporarily arresting arthritic pain - Google Patents

Apparatus for temporarily arresting arthritic pain Download PDF

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Publication number
US3902502A
US3902502A US505864A US50586474A US3902502A US 3902502 A US3902502 A US 3902502A US 505864 A US505864 A US 505864A US 50586474 A US50586474 A US 50586474A US 3902502 A US3902502 A US 3902502A
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United States
Prior art keywords
current
electronic apparatus
multivibrator
circuit
skin
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Expired - Lifetime
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US505864A
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English (en)
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Saul Liss
George Feldstein
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Individual
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Individual
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Priority to US505864A priority Critical patent/US3902502A/en
Priority to CA232,917A priority patent/CA1068787A/en
Priority to ZA00755104A priority patent/ZA755104B/xx
Priority to AU83829/75A priority patent/AU500431B2/en
Priority to NL7509934A priority patent/NL7509934A/xx
Priority to DE2538289A priority patent/DE2538289C2/de
Priority to IL48006A priority patent/IL48006A/xx
Priority to FR7526790A priority patent/FR2284342A1/fr
Application granted granted Critical
Priority to GB3611475A priority patent/GB1477095A/en
Publication of US3902502A publication Critical patent/US3902502A/en
Priority to JP50110135A priority patent/JPS5153785A/ja
Priority to HK340/78A priority patent/HK34078A/xx
Priority to JP1983168474U priority patent/JPS6036291Y2/ja
Anticipated expiration legal-status Critical
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
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36014—External stimulators, e.g. with patch electrodes
    • A61N1/36021—External stimulators, e.g. with patch electrodes for treatment of pain
    • 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

  • the present invention pertains to portable electronic apparatus which is locally applied to relieve an arthritic condition and as a treatment relieves the pain for a time period of l hour to 8 hours. No curative effects are claimed or anticipated by this apparatus, however, the temporary relief appears to equal or surpass local cortisone shots in joints, inflamed muscles or other arthritic afflicted areas and without the side effects of cortisone.
  • the present apparatus preferably as a small electronic device employs a current source [56] References Cited i provided by a battery having nominally eighteen volts UNITED STATES PATENTS dict This current is comprised of two major frequency 2,823178 2/l958 Luftman 01 al. i v 11 28/422 omponents and is to local areas and on- 3-19-5540 7/1965 3 3 trolled so that a current of 0.8 milliamperes or less is 2 2 323 the peak current applied and is indicated on a meter 6/] C m U l scale measuring the flow through the contacts applied 3,648,708 3/1972 Haen H 128/422 3 79] 373 2/1974 winklr c a!
  • variable pulse duration electrotherapeutic device as seen in U.S. Pat. No. 3.794.022 as issued to NAWRACAJ on Feb. 26th. I974 uses square waves in a cycle pattern where the pulse pattern provides separate voltage currents of separate frequencies by a series of pulses ofa varying duration during a predetermined period.
  • the electrical source is A.(. current from a wall plug.
  • the voltages may be from Z to 5 and in some instances up to 250 volts is approved by the American Medical Association for physiotherapy treatment.
  • the present invention is unique in that the desired arthritic suppression is achieved by providing a very small current flow at a low voltage l8 v'.d.c. This current flow is applied to give a pumping action to the ner ⁇ e train bet ⁇ ccn the applied contact points.
  • the impedance of the patient is compensated for by the con stant current circuit which is automatically readjusted to the needs olthe patient.
  • the pumping action current llow is achieved by applying at a cycle rate between l0 and -10 b7.. a 75 percent on and percent off a high carrier frequency from 20 ly'h/. to one megacy'cle. lhis high frequency is produced by a 50 percent duty cycle multivibrator so that all cycles are above the datum line.
  • the modulation low frequency vibrator provides a square wave output.
  • the selection of the modulation frequency to fall within 10 to 40 cycles per second avoids causing any fugitive signal transmission to the brain whose cycle frequency is eight or less and the heart which is fifty or more.
  • the control of the voltage to 18 volt. d.c. at a current flow of eight-tenths of a milliampere insures that repeated usage beyond the normal three to four minute application is perfectly safe under any and all circumstances.
  • the apparatus including power supply is of a very small size.
  • the application may be personally applied by the one for Whom the treatment is required. Many patients are, or are anticipated to be. senior citizens and for this reason the use of the apparatus must be absolutely foolproof as to possible misapplication, shorts in the apparatus and even to the extent of immersion in water or a similar medium.
  • the low voltage supply and the use of solid state electronics insures that the apparatus of this invention is absolutely safe in all circumstances.
  • This current is controllably applied to a localized source of affliction for a determined time period as for example three and one-half minutes.
  • This current flow is applied in the nature ofa pumping action which appears to assist the synaptic chain flow in the nerves to cause the nerves to be relieved of their tension.
  • the current as applied has a base vibration of 20 kilocycles to l magacycle. which current is modulated by an asta ble multivibrator with a percent duty cycle to present a current flow of 75 percent on and 25 percent off at a cycle of frequency 10 to 40 hz. with a current flow automatically controlled not to exceed eight-tenths of a milliampere.
  • This high frequency current of 20 kilohertz to l megahertz is gated by a second astable vibrator with a 75 percent duty cycle in which the cycle is between 10 to 40 hz. with the resulting local current flow automatically restricted to eight tenths of a milliampere when applied to the afflicted area to provide arthritic pain suppression. Tests have established that the pain suppression is effective for periods of l to 7 hours.
  • the treating current produced by this circuit through two multivibrators operating as a combination provides a pulsing action of current to the afflicted area.
  • the forward going current is on" 75 percent and off" 25 percent and is a square wave derived by a 75 percent duty astable mutivibrator. This square wave further controls a 50 percent duty cycle astable multivibrator.
  • the resulting applied current is at kilocycles to one megacycle at a modulated frequency of ten to 40 hz.
  • a current control limits the current flow to a maximum of eighttenths of a milliampere with a maximum applied voltage nominally of 8 volts, but independent of the actual voltage across the contacts.
  • This current output is carried to two contacts, one identified as a positive and one as a negative or common electrode.
  • the circuit diagram is in the form of a block diagram in which is represented the various functions of the components forming the circuit and providing the special current flow output of the arthritic pain suppression device.
  • the same identifying numbers are applied to like components for the sake of convenience and not necessarily in a limiting sense.
  • the desired current flow is initiated by an on-off switch I which is preferably spring biased to the normally oft condition.
  • switch I When the switch is actuated it causes the circuit to be turned on with the rest of the functions being pcrformed in an automatic nature.
  • a timer circuit 2 With the actuating of the switch a timer circuit 2 is turned on.
  • This timer circuit when initiated has a predetermined set timing cycle and, as reduced to practice, through monitored tests is preferably three to four minutes in duration. At the same time that the timer circuit is turned on the power supply control circuit 3 is also turned on.
  • This power supply control circuit 3 is interconnected to timer circuit 2 by means of conductors 4 and 5 and its actuation results from the closing of switch I with this signal carried through conductor 6. Power for this apparatus is fed to the power supply control circuit by and from an eighteen volt d.c. source 8 which is contemplated to be two nine volt rechargeable batteries. This voltage source identified as 8 is connected by conductor 9 to the positive side of the battery 8 and to the power control circuit 3. From this power control supply circuit 3 the current is fed through conductor 10 simultaneously to three interconnected and related components.
  • An astable multivibrator 12 which produces square waves is quite familiar to those skilled in the art. This astable multivibrator has a percent duty cycle and is adjusted to produce a cycle of It) to 40 hz. and is connected by means of conductor 14 to another astable multivibrator 16 which has a 50 percent duty cycle and functions anywhere from 20 kilo hz. to l mega hz.
  • the resulting vibrating current from astable multivibrator 16 is connected by conductor 18 to a current control apparatus 20 which in the present device is anticipated to allow adjusting the current flow to a maximum of eight-tenths of a milliampere.
  • the amount of current also is indicated to the user or supervisor of the apparatus by connecting the output of the current con trol through conductor 22 to and through a microampere meter 24 which is connected to a positive outlet female receptor 26 by means of a conductor 28.
  • This receptor 26 is a female receptor sized to receive a male jack 29 which is inserted into the female jack receptor to make an electrical connection.
  • This contact retaining member 30 preferably is a spring clip such as is used with the flexible conductors normally used in apparatus for taking ekgs.
  • a contact 32 having an adhesive outer retaining means. These contacts are replaceably mounted in the member connector 30.
  • a jell 34 is indicated as being applied to the contact before and at the time of the mounting of the contact on the skin of the patient.
  • the negative or ground side of battery 8 is connected preferably to a female receptor 40 which is connected by means of a male jack 42 and a conductor 44 to a spring clip retaining member 46.
  • a discardable adhesive contact 48 is removably retained by this retaining member 46 and the conductivity from and to the skin is enhanced by using a dab of jelly 34. This commerically available jelly 34 is applied to the contact as is customary in the taking of an ekg.
  • a charger circuit is therefore incorporated into the present apparatus.
  • This charger is contemplated as only being em ployed when contacts 30 and 46 are disconnected with the withdrawal of jacks 29 and 42. Charging orientation is insured by making jacks 29 and 42 different in size.
  • Correspondingly sized jacks 60 and 62 are adapted for insertion into the female receptacles 26 and 40 in the manner of the jacks 29 and 42.
  • Jacks 60 and 62 by means of conductors 64 and 66 are connected to a charger 68 of conventional known design. These chargers convert volts AL.
  • the charger 68 is connected by means of conductors 70 to outlet plug 72 connectable to available A.C. house current.
  • a diode 74 is inserted into the conductor 28. The positive current flow is then carried by conductor 76 from the female receptor 26 to a charging circuit 78 and thence by means of a conductor 80 to the positive side of the battery 8 for recharging the battery at the needed intervals.
  • the on" switch 1 is depressed to start the timing circuit 2 and activate the power supply control circuit 3 to the several components forming the vibrating pulse which is applied locally for a determined time period to stimulate the nerves in the afflicted area in a desired orientation.
  • the timer circuit 2 limits the flow of current from power supply 3 to a determined time interval such as three and one-half minutes after the power from the battery 8 is turned off.
  • the eighteen volt d.c. battery supply 8 supplies the electromotive force for all of the circuitry and from the power supply control circuit 3 there is a distribution of function of this power force not only to the timer circuit and back to the power supply control circuit but also to the various other items such as the multivibrators and the current controlling circuit.
  • the astable multivibrator 12 is special insofar as it has a 75 percent duty cycle which means it has a 25 percent off time and a 75 percent on time. For the purpose of safety and use by the patient this particular multivibrator has a cycle time of from 10 to 40 hz. This cycle is set at the factory and usually is about 25 hz.
  • the multivibrator 12 is connected by means of a conductor M to the astable multivibrator l6 and is a modulator for this high frequency vibrator 16 which functions at anywhere from 2() kilo hz. to l mega hz.
  • the signal from vibrator I2 is gated at its input side to multivibrator 16.
  • the vibrations of the second astable multivibrator 16 is pulsed by the output or flow control of multivibrator 12 which literally turns the second of high frequency multivibrator 16 on" and "ofi'" as the case may be depending upon the function of the astable multivibrator 12.
  • the combined output of the astable multivibrators l2 and 16 is then presented to the current source control 20 through conductor 18 as a square wave function. All of the wave vibrations are above a minimum or medium line and occur as a 75 percent on and a percent of flow.
  • this current is fed to and through the current control source 20 so that a maximum current flow of eight-tenths of a milliampere is maintained and this is read by the indicator signal of the micro ampere meter 24.
  • This flow is fed to the output receptor 26 and eventually to the contact member 30 and the contact pad 32 and then to the skin of the patient.
  • the particular ampere flow level generally through the afflicted area of a paitent is from three-to six-tenths of a milliampere.
  • Provi sion may be made to permit the doctor or the user of the device to adjust the current source control by a variable control. This adjustment is generally set at the factory but may be adjusted to a particular patient and if necessary for a particular afflicted portion.
  • the bat tery may be charged. Jacks 29 and 42 are removed from receptors 26 and 40 and jacks 60 and 62 mounted therein. Charger 68 is then connected to A.C. power through plug 72 and the charging circuit 78 feeds the required charging power to battery 8. Diode 74 is a one-way gate preventing current from charger 68 from flowing to the vibrating and current flow limiting components.
  • the astable multivibrator limits the forward going pulses to a 10 to 40 cycle range. This limitation is deliberate.
  • the 10 cycle low limit prevents any stray pulse signals in the nerves to affect the human brain function which is at 8 or less cycles.
  • the high limit of 40 cycles is established to prevent any stray pulse signals from affecting heart signals of 60 or more.
  • the square wave signal insures that the pulses when on are alike and regular.
  • the 50 percent duty cycle insures that all pulses are forward going and no alternating or reversing tetaniz ing current flows to the afflicted nerve area.
  • the current source control 20 automatically compensates for the impedance in the skin of the patient at the particular time of use. It was recognized that there are many variables in the effecting of a localized electrical contact with the skin. The impedance in the skin appears to vary from day-to-day and even from hourto-hour. It is impractical, if not impossible, to apply the contacts to the exact same skin locations time after time. ln addition the contact pressure varies from time to time and particularly with and during the patients movement. Hence, to apply a precise forward going vibrating current of a very low controlled amount to the afflicted area an automatic impedance control is needed and is provided. The apparatus can only be connected to a potentially dangerous power source during the battery recharging period. As arranged. contacts 30 and 46 with jacks 29 and 42 must be removed before jacks 60 and 62 are inserted to carry converted current from the charger 68 to battery 8.
  • the above-described apparatus provides a nerve stimulator which although battery powered employs such a small current that it often requires a viewing of the meter 24 to be sure that treatment is in process. This is in sharp contrast to apparatus such as that employing 25 milliampere at l2() volts.
  • This type of apparatus requires a manual control by which the patient can reduce the input to his own tolerant levels until repeated use builds up a conditioning acceptance.
  • Most of the prior art apparatus known to the Applicant's permit the applying of the contacting electrodes to the patient's skin without a definitive arrangement of the positive and negative contacts. This is not true of the present apparatus, as above noted.
  • the orientation of the contacting electrodes on the patient is extremely important. The orientation is aligned to augment the nerve flow and is achieved with the positive electrode nearer the heart so that the applied pulse is only forward going and when on"the frequencies are only on one side ofa datum line.
  • the astable multivibrator is shown as a 75 percent duty cycle, other ratios provide to varying degrees success in the arresting of pain as long as the pulse vibrations are forward going. Ratios of two to one, four to one and even five to one have produced temporary pain relief. The most effcc tive ratio with the several patients treated under a doctors evaluation and supervision has been the three to one ratio produced by multivibrator 12.
  • An electronic apparatus for temporarily arresting at local areas a patients arthritic pain and the like, said apparatus having conducting leads for carrying the output of the apparatus to contact ends to conductively apply to the skin of the patient and at a localized area a forward going pulse which is automatically continued for a short period such as 3 to 4 minutes.
  • said apparatus including: (a) a power source providing a dc. voltage to the apparatus; (b) switch means which when closed at least momentarily initiates a flow of dc. voltage from the power source to a pulse forming apparatus; (c) means for limiting the time duration of the dc.
  • a first astable square wave multivibrator having a asymmetrical duty cycle which may be as little as two-thirds of the cycle and as great as five-sixths of the cycle and operating at a selected rate of not less than ten and not more than 40 hz. said vibrator connected to and providing a gate control for;
  • a second astable square wave multivibrator having a duty cycle of 50 percent and operating at a selected rate of not less than 20 khz. and not more than I mh2..
  • the automatic current control maintaining the selected set level no matter what changes in impedance occur in the transmission of said current locally through the skin of the patient.
  • switch means is a spring-biased switch which is urged to its oft condition and when closed causes a timer circuit to be initiated and with a power supply control circuit feeds the dc. voltage to the first and second multivibrator and the automatic gate control.
  • An electronic apparatus as in claim 2 in which a microampere-meter is connected to the output conductor leading from the automatic current control to the skin contact member, said micro-ampere-meter arranged so as to provide a visual indication of the output level flowing through the local skin area.
  • An electronic apparatus as in claim 1 in which the voltage source is a rechargeable d.c. battery system and the apparatus circuit includes a charging circuit disposed to feed rectified current as received from an AC. current supplied charger to the rechargeable battery.
  • An electronic apparatus as in claim 5 in which the electronic circuit includes a diode so connected in the circuit that the charging current sent to the dc. battery source from the charger is prevented from flowing in a reverse direction to the automatic current control and first and second multivibrator.
  • An electronic apparatus as in claim 6 in which the apparatus and power source is encased in a small housing to make the apparatus portable and in which the means for conducting the output current are conductive leads to the patient and include disconnecting means provided at one of the walls of the housing by which the conductive leads may be disconnected and connected as desired.
  • the disconnecting means includes jacks of two different configurations and mating receptacles so that reconnection can be achieved only in one arrangement. and in which the charger is provided with two conductors, one terminating at a jack adapted for connection with one receptacle and the other conductor terminating at a jack adapted for connection to the other receptacle. said charger thus being able to be connected to the apparatus only when the conductors for the skin contactors are disconnected.
  • An electronic apparatus as in claim 1 in which the first multivibrator has a duty cycle of threefourths on and one-fourth of 10.
  • An electronic apparatus as in claim I in which the means for limiting the time is a timer circuit which is preset to provide between 3 and 4 minutes.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pain & Pain Management (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Electrotherapy Devices (AREA)
US505864A 1974-09-13 1974-09-13 Apparatus for temporarily arresting arthritic pain Expired - Lifetime US3902502A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US505864A US3902502A (en) 1974-09-13 1974-09-13 Apparatus for temporarily arresting arthritic pain
CA232,917A CA1068787A (en) 1974-09-13 1975-08-06 Apparatus for temporarily arresting arthritic pain
ZA00755104A ZA755104B (en) 1974-09-13 1975-08-07 Apparatus for temporarily arresting arthritic pain
AU83829/75A AU500431B2 (en) 1974-09-13 1975-08-11 Arthritic pain suppression
NL7509934A NL7509934A (nl) 1974-09-13 1975-08-22 Elektrische inrichting voor het tijdelijk en plaatselijk onderdrukken van pijn.
IL48006A IL48006A (en) 1974-09-13 1975-08-28 Electronic apparatus for temporarily arresting at local areas a patient's arthritic pain and the like
DE2538289A DE2538289C2 (de) 1974-09-13 1975-08-28 Elektrostimulationsvorrichtung zur lokalen Bekämpfung von athritischen Schmerzen
FR7526790A FR2284342A1 (fr) 1974-09-13 1975-09-01 Appareil electronique faisant disparaitre temporairement une douleur localisee
GB3611475A GB1477095A (en) 1974-09-13 1975-09-02 Apparatus for temporarily arresting arthritic pain
JP50110135A JPS5153785A (xx) 1974-09-13 1975-09-12
HK340/78A HK34078A (en) 1974-09-13 1978-06-29 Apparatus for temporarily arresting arthritic pain
JP1983168474U JPS6036291Y2 (ja) 1974-09-13 1983-11-01 関節炎痛抑制装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US505864A US3902502A (en) 1974-09-13 1974-09-13 Apparatus for temporarily arresting arthritic pain

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US3902502A true US3902502A (en) 1975-09-02

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US505864A Expired - Lifetime US3902502A (en) 1974-09-13 1974-09-13 Apparatus for temporarily arresting arthritic pain

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US (1) US3902502A (xx)
JP (2) JPS5153785A (xx)
AU (1) AU500431B2 (xx)
CA (1) CA1068787A (xx)
DE (1) DE2538289C2 (xx)
FR (1) FR2284342A1 (xx)
GB (1) GB1477095A (xx)
HK (1) HK34078A (xx)
IL (1) IL48006A (xx)
NL (1) NL7509934A (xx)
ZA (1) ZA755104B (xx)

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US5018524A (en) * 1985-05-15 1991-05-28 Hansen Gu Apparatus and method for generating vital information signals
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US5273033A (en) * 1991-09-19 1993-12-28 Murray Electronics Associates Limited Partnership Electrical stimulation for treatment of osteoarthritis
US5441528A (en) * 1992-09-25 1995-08-15 Symtonic, S.A. Method and system for applying low energy emission therapy
US5609617A (en) * 1995-02-21 1997-03-11 C. Norman Shealy Method for enhancement of dehydroepiandrosterone
US6007477A (en) * 1998-02-12 1999-12-28 Demenezes; Jose E. Eye treatment device
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JPS5985241U (ja) 1984-06-08
AU8382975A (en) 1977-02-17
HK34078A (en) 1978-07-07
JPS5153785A (xx) 1976-05-12
NL7509934A (nl) 1976-03-16
IL48006A (en) 1978-01-31
AU500431B2 (en) 1979-05-24
GB1477095A (en) 1977-06-22
DE2538289A1 (de) 1976-03-25
DE2538289C2 (de) 1985-12-05
CA1068787A (en) 1979-12-25
JPS6036291Y2 (ja) 1985-10-28
FR2284342B1 (xx) 1979-05-25
IL48006A0 (en) 1975-11-25
FR2284342A1 (fr) 1976-04-09
ZA755104B (en) 1976-07-28

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