GB1535413A - Electro-anaesthesia apparatus - Google Patents

Electro-anaesthesia apparatus

Info

Publication number
GB1535413A
GB1535413A GB1464576A GB1464576A GB1535413A GB 1535413 A GB1535413 A GB 1535413A GB 1464576 A GB1464576 A GB 1464576A GB 1464576 A GB1464576 A GB 1464576A GB 1535413 A GB1535413 A GB 1535413A
Authority
GB
United Kingdom
Prior art keywords
circuit
output
current
pulse
pulses
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
GB1464576A
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.)
MO OBLAST NI I AKUSHER I GINEK
Original Assignee
MO OBLAST NI I AKUSHER I GINEK
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 MO OBLAST NI I AKUSHER I GINEK filed Critical MO OBLAST NI I AKUSHER I GINEK
Priority to GB1464576A priority Critical patent/GB1535413A/en
Priority to GB1533577A priority patent/GB1575322A/en
Publication of GB1535413A publication Critical patent/GB1535413A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Pain & Pain Management (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electrotherapy Devices (AREA)

Abstract

1535413 Electro - anaesthesia apparatus MOSKOV OBLAST N I INST AKUSHERST I GINEKOLOG 9 April 1976 14645/76 Heading A5R Electro-anaesthesia apparatus has a current pulse generator 1, means 3 for adjusting the pulse width, means 5 for adjusting the current amplitude of the pulses, means 6 for indicating the mean output current, and a patient protection circuit 7 which discontinues application of the current pulses to the patient if the output current amplitude exceeds a predetermined value. Circuit 1 comprises a multivibrator 20, 21 giving a square wave output at a p.r.f. set by adjustable resistor 29 of 100 Hz to 7 KHz. Circuit 2 acts to differentiate this output and gives 0.05 n sec pulses at the p.r.f. set in circuit 1 to a multivibrator 39, 40 circuit 3 giving an output at the same p.r.f. and having an adjustable resistor 46 to select the pulse width. A pulse shaper circuit 4 processes the output of circuit 3 and has a switch 65 to select either a square wave output, formed by differential amplifier 50, 51, or a pulse shape with an exponential trailing edge, formed by tranistor 60 and associated components. The selected pulse output passes to circuit 5 which is formed as a voltage generator and includes an adjustable resistor 68 to set the current amplitude of the pulses. The output of circuit 5 passes to the patient via a mean current indicating meter 79 of circuit 6. Circuits 1, 2, 3 &c. receive power from a battery 113 via a voltage stabilizer 106 to 110, and an inverter 96, 97, 102 and rectifier 103 give a supply at a second voltage to circuits 4, 5, 8. The output to the patient is monitored by a circuit 8, constructed as a peak voltage detector and having a peak current indicating meter 94, and by the circuit 7 which has a relay 83 which when the output current exceeds a preset level opens a switch 112 to disconnect the battery. In a modification, Fig. 7 (not shown), the input to circuit 5 may be connected to the output of circuit 2 selectively either via circuits 3 and 4 to give a continuous pulse train output or via a circuit (18) comprising a J-K flip-flop to give intermittent analgesia. The electrodes 11, 12 connected to the output of circuit 6 are each formed as a concave disc and are attached to a rubber band head harness (16), Figs. 5, 6 (not shown), with two earthed cathodes 11 at the forehead area and two anodes 12 at the neck area below the mastoids.
GB1464576A 1976-04-09 1976-04-09 Electro-anaesthesia apparatus Expired GB1535413A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1464576A GB1535413A (en) 1976-04-09 1976-04-09 Electro-anaesthesia apparatus
GB1533577A GB1575322A (en) 1976-04-09 1977-04-13 Apparatus for pulse current action on the central nervous system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1464576A GB1535413A (en) 1976-04-09 1976-04-09 Electro-anaesthesia apparatus

Publications (1)

Publication Number Publication Date
GB1535413A true GB1535413A (en) 1978-12-13

Family

ID=10044998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1464576A Expired GB1535413A (en) 1976-04-09 1976-04-09 Electro-anaesthesia apparatus

Country Status (1)

Country Link
GB (1) GB1535413A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507089A1 (en) * 1981-06-08 1982-12-10 Empi Inc STIMULATOR MODULE OF DEPENDENT BODIES
GB2148121A (en) * 1983-10-22 1985-05-30 Mo Oblastnoi Nii Akusherstva I Apparatus for central electroanalgesia
GB2159719A (en) * 1984-06-07 1985-12-11 Pain Suppression Labs Inc Electronic glaucoma treatment apparatus
GB2181059A (en) * 1985-10-01 1987-04-15 Mems Technology Inc Apparatus and method for micro-electric medical stimulation of cells of living animal tissue
GB2224936A (en) * 1988-11-17 1990-05-23 Omar Fahkri Apparatus for the treatment of the human body by means of electro-therapy
GB2231270A (en) * 1989-05-04 1990-11-14 Mo G Med I Im Ni Pirogova 2 Electrotranquillizing device
EP1515148A3 (en) * 2003-09-11 2005-08-17 Ethicon Endo-Surgery, Inc. System and method for providing battery backup power

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507089A1 (en) * 1981-06-08 1982-12-10 Empi Inc STIMULATOR MODULE OF DEPENDENT BODIES
GB2148121A (en) * 1983-10-22 1985-05-30 Mo Oblastnoi Nii Akusherstva I Apparatus for central electroanalgesia
GB2159719A (en) * 1984-06-07 1985-12-11 Pain Suppression Labs Inc Electronic glaucoma treatment apparatus
GB2181059A (en) * 1985-10-01 1987-04-15 Mems Technology Inc Apparatus and method for micro-electric medical stimulation of cells of living animal tissue
US4738250A (en) * 1985-10-01 1988-04-19 Mems Technology, Incorporated Apparatus and method for micro-electric medical stimulation of cells of living animal tissue
GB2224936A (en) * 1988-11-17 1990-05-23 Omar Fahkri Apparatus for the treatment of the human body by means of electro-therapy
GB2231270A (en) * 1989-05-04 1990-11-14 Mo G Med I Im Ni Pirogova 2 Electrotranquillizing device
FR2647352A1 (en) * 1989-05-04 1990-11-30 Mo G Meditsi ELECTRO-TRANQUILIZATION DEVICE
EP1515148A3 (en) * 2003-09-11 2005-08-17 Ethicon Endo-Surgery, Inc. System and method for providing battery backup power

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee