GB1363196A - Electro-medical devices - Google Patents

Electro-medical devices

Info

Publication number
GB1363196A
GB1363196A GB3970872A GB3970872A GB1363196A GB 1363196 A GB1363196 A GB 1363196A GB 3970872 A GB3970872 A GB 3970872A GB 3970872 A GB3970872 A GB 3970872A GB 1363196 A GB1363196 A GB 1363196A
Authority
GB
United Kingdom
Prior art keywords
source
electronic means
patient
electro
aug
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
GB3970872A
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.)
American Optical Corp
Original Assignee
American Optical Corp
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 American Optical Corp filed Critical American Optical Corp
Publication of GB1363196A publication Critical patent/GB1363196A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H03F3/08—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light
    • H03F3/087—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light with IC amplifier blocks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/30—Input circuits therefor
    • A61B5/301—Input circuits therefor providing electrical separation, e.g. by using isolating transformers or optocouplers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/30—Input circuits therefor
    • A61B5/307—Input circuits therefor specially adapted for particular uses
    • A61B5/308—Input circuits therefor specially adapted for particular uses for electrocardiography [ECG]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/908—Patient protection from electric shock

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Amplifiers (AREA)
  • Electrotherapy Devices (AREA)

Abstract

1363196 Electro-medical apparatus AMERICAN OPTICAL CORP 25 Aug 1972 [26 Aug 1971] 39708/72 Heading G1N In apparatus for monitoring a physiological function of a patient, an optical coupling means comprising a light-emitting diode 17 and a photo-transistor 19 is arranged between a first electronic means connected to the patient to provide a monitoring signal and a second electronic means, thereby to electrically isolate the first and second electronic means, the first electronic means being powered by a first source and a second source being provided for powering the first source and the second electronic means, the second source being electrically isolated from the first source by a D.C.-D.C. converter, Fig.2 (not shown). As shown, an e.c.g. signal is picked-up by electrodes 10, 11, 12 connected to the patient. The light-emitting diode 17 and the phototransistor 19 are preferably encapsulated together as depicted by block 28.
GB3970872A 1971-08-26 1972-08-25 Electro-medical devices Expired GB1363196A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17512171A 1971-08-26 1971-08-26

Publications (1)

Publication Number Publication Date
GB1363196A true GB1363196A (en) 1974-08-14

Family

ID=22638996

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3970872A Expired GB1363196A (en) 1971-08-26 1972-08-25 Electro-medical devices

Country Status (5)

Country Link
US (1) US3742947A (en)
JP (1) JPS4832390A (en)
CA (1) CA995761A (en)
DE (1) DE2236002A1 (en)
GB (1) GB1363196A (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825896A (en) * 1972-05-01 1974-07-23 Texas Instruments Inc Computer input/output interface systems using optically coupled isolators
US3894229A (en) * 1972-07-28 1975-07-08 Matsushita Electric Ind Co Ltd Signal generator
JPS5753699B2 (en) * 1973-04-19 1982-11-15
US3880146A (en) * 1973-06-04 1975-04-29 Donald B Everett Noise compensation techniques for bioelectric potential sensing
JPS5098584U (en) * 1974-01-11 1975-08-16
JPS50119484A (en) * 1974-03-06 1975-09-18
CH600520A5 (en) * 1976-07-08 1978-06-15 Bbc Brown Boveri & Cie
JPS55145956A (en) * 1979-04-24 1980-11-13 Nippon Telegr & Teleph Corp <Ntt> Method of correcting meandering
JPS56130137A (en) * 1980-03-19 1981-10-12 Olympus Optical Co Light source apparatus for endoscope
JPS58133234A (en) * 1982-02-03 1983-08-08 セイコーインスツルメンツ株式会社 Pulse detecting circuit
US4752693A (en) * 1983-03-31 1988-06-21 Tokyo Shibaura Denki Kabushiki Kaisha Circuit with a photo coupler
JPS61178357A (en) * 1985-01-30 1986-08-11 Graphtec Corp Automatic paper aligner
JPS63272325A (en) * 1986-12-19 1988-11-09 Fukuda Denshi Co Ltd Bio-signal processing apparatus
JPS63272324A (en) * 1986-12-19 1988-11-09 Fukuda Denshi Co Ltd Bio-signal processing apparatus
US4976681A (en) * 1988-04-27 1990-12-11 Aries Medical, Inc. Pacer interface device
US4987902A (en) * 1988-12-30 1991-01-29 Physio-Control Corporation Apparatus for transmitting patient physiological signals
CA2026583A1 (en) * 1989-01-27 1990-07-28 Walter Guggenbuhl Biotelemetric method for transmitting bioelectric potential differences and device for transmitting ecg signals
US5522865A (en) * 1989-09-22 1996-06-04 Alfred E. Mann Foundation For Scientific Research Voltage/current control system for a human tissue stimulator
US5108389A (en) * 1990-05-23 1992-04-28 Ioan Cosmescu Automatic smoke evacuator activator system for a surgical laser apparatus and method therefor
US5226431A (en) * 1991-06-20 1993-07-13 Caliber Medical Corporation Optical/electrical transceiver
US5238001A (en) * 1991-11-12 1993-08-24 Stuart Medical Inc. Ambulatory patient monitoring system having multiple monitoring units and optical communications therebetween
FR2710848B1 (en) * 1993-10-08 1995-12-01 Ela Medical Sa Implantable defibrillator with optically isolated shock generator.
US7500952B1 (en) * 1995-06-29 2009-03-10 Teratech Corporation Portable ultrasound imaging system
US5590658A (en) * 1995-06-29 1997-01-07 Teratech Corporation Portable ultrasound imaging system
US8241217B2 (en) * 1995-06-29 2012-08-14 Teratech Corporation Portable ultrasound imaging data
US5680104A (en) * 1996-05-31 1997-10-21 Volution Fiber optic security system
US6493485B1 (en) 1999-08-03 2002-12-10 Astro Terra Corporation Systems and methods for aligning a laser beam with an optical fiber
US6391102B1 (en) 2000-03-21 2002-05-21 Stackhouse, Inc. Air filtration system with filter efficiency management
US6977540B2 (en) * 2003-02-18 2005-12-20 Adc Dsl Systems, Inc. High-speed isolated port
US9529762B2 (en) * 2003-06-30 2016-12-27 Becton, Dickinson And Company Self powered serial-to-serial or USB-to-serial cable with loopback and isolation
US8030891B2 (en) 2008-04-10 2011-10-04 Smiths Medical Asd, Inc. Ambulatory medical device with electrical isolation from connected peripheral device
US8135876B2 (en) * 2008-12-31 2012-03-13 Fresenius Medical Care Holdings, Inc. Identifying when a USB self-powered device is connected to a medical device by triggering an alert about a potential risk to patient
US8145800B2 (en) 2008-12-31 2012-03-27 Fresenius Medical Card Holdings, Inc. Identifying when a USB self-powered device is connected to a medical device by triggering an alert about a potential risk to patient

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488586A (en) * 1965-06-02 1970-01-06 Gen Electric Frequency modulated light coupled data link
NL161952C (en) * 1967-07-25 1980-03-17 Matsushita Electric Ind Co Ltd HIGH VOLTAGE GENERATOR FOR A TELEVISION RECEIVER, AND A TELEVISION RECEIVER.

Also Published As

Publication number Publication date
CA995761A (en) 1976-08-24
JPS4832390A (en) 1973-04-28
US3742947A (en) 1973-07-03
DE2236002A1 (en) 1973-03-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee