CA970849A - Low leakage isolating transformer for electromedical apparatus - Google Patents

Low leakage isolating transformer for electromedical apparatus

Info

Publication number
CA970849A
CA970849A CA151,921A CA151921A CA970849A CA 970849 A CA970849 A CA 970849A CA 151921 A CA151921 A CA 151921A CA 970849 A CA970849 A CA 970849A
Authority
CA
Canada
Prior art keywords
isolating transformer
low leakage
electromedical apparatus
leakage isolating
electromedical
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
CA151,921A
Other versions
CA151921S (en
Inventor
Malcolm P. Macmartin
Norbert L. Kusters
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.)
National Research Council of Canada
Original Assignee
National Research Council of Canada
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 National Research Council of Canada filed Critical National Research Council of Canada
Priority to CA151,921A priority Critical patent/CA970849A/en
Priority to US398207A priority patent/US3866093A/en
Application granted granted Critical
Publication of CA970849A publication Critical patent/CA970849A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/276—Protection against electrode failure
CA151,921A 1972-09-18 1972-09-18 Low leakage isolating transformer for electromedical apparatus Expired CA970849A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA151,921A CA970849A (en) 1972-09-18 1972-09-18 Low leakage isolating transformer for electromedical apparatus
US398207A US3866093A (en) 1972-09-18 1973-09-17 Low leakage electrical power input circuit for electromedical and other similar apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA151,921A CA970849A (en) 1972-09-18 1972-09-18 Low leakage isolating transformer for electromedical apparatus

Publications (1)

Publication Number Publication Date
CA970849A true CA970849A (en) 1975-07-08

Family

ID=4094460

Family Applications (1)

Application Number Title Priority Date Filing Date
CA151,921A Expired CA970849A (en) 1972-09-18 1972-09-18 Low leakage isolating transformer for electromedical apparatus

Country Status (2)

Country Link
US (1) US3866093A (en)
CA (1) CA970849A (en)

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US6380751B2 (en) * 1992-06-11 2002-04-30 Cascade Microtech, Inc. Wafer probe station having environment control enclosure
US5345170A (en) * 1992-06-11 1994-09-06 Cascade Microtech, Inc. Wafer probe station having integrated guarding, Kelvin connection and shielding systems
GB2279189A (en) * 1993-06-15 1994-12-21 Sheir Chun Lam Earth fault circuit breaker
US6232789B1 (en) * 1997-05-28 2001-05-15 Cascade Microtech, Inc. Probe holder for low current measurements
US5561377A (en) * 1995-04-14 1996-10-01 Cascade Microtech, Inc. System for evaluating probing networks
US5838877A (en) * 1995-08-02 1998-11-17 Itt Automotive Electrical Systems, Inc. Noise suppression in PWM-driven DC motor
US5857060A (en) * 1995-08-02 1999-01-05 Itt Automotive Electrical Systems, Inc. Noise suppression in PWM-driven DC motor
US5914613A (en) * 1996-08-08 1999-06-22 Cascade Microtech, Inc. Membrane probing system with local contact scrub
US5696861A (en) * 1996-08-13 1997-12-09 Schimmeyer; Werner K. Method and apparatus for simultaneously connecting data/signal communication lines and power lines to a data/RF receiver/transmitter
US6002263A (en) * 1997-06-06 1999-12-14 Cascade Microtech, Inc. Probe station having inner and outer shielding
US6256882B1 (en) 1998-07-14 2001-07-10 Cascade Microtech, Inc. Membrane probing system
US6578264B1 (en) 1999-06-04 2003-06-17 Cascade Microtech, Inc. Method for constructing a membrane probe using a depression
US6445202B1 (en) * 1999-06-30 2002-09-03 Cascade Microtech, Inc. Probe station thermal chuck with shielding for capacitive current
US6838890B2 (en) * 2000-02-25 2005-01-04 Cascade Microtech, Inc. Membrane probing system
US6965226B2 (en) 2000-09-05 2005-11-15 Cascade Microtech, Inc. Chuck for holding a device under test
US6914423B2 (en) * 2000-09-05 2005-07-05 Cascade Microtech, Inc. Probe station
DE10143173A1 (en) 2000-12-04 2002-06-06 Cascade Microtech Inc Wafer probe has contact finger array with impedance matching network suitable for wide band
AU2002327490A1 (en) 2001-08-21 2003-06-30 Cascade Microtech, Inc. Membrane probing system
US6836135B2 (en) * 2001-08-31 2004-12-28 Cascade Microtech, Inc. Optical testing device
US6777964B2 (en) * 2002-01-25 2004-08-17 Cascade Microtech, Inc. Probe station
US7352258B2 (en) * 2002-03-28 2008-04-01 Cascade Microtech, Inc. Waveguide adapter for probe assembly having a detachable bias tee
US6815963B2 (en) * 2002-05-23 2004-11-09 Cascade Microtech, Inc. Probe for testing a device under test
US6847219B1 (en) 2002-11-08 2005-01-25 Cascade Microtech, Inc. Probe station with low noise characteristics
US6724205B1 (en) * 2002-11-13 2004-04-20 Cascade Microtech, Inc. Probe for combined signals
US7250779B2 (en) * 2002-11-25 2007-07-31 Cascade Microtech, Inc. Probe station with low inductance path
US6861856B2 (en) * 2002-12-13 2005-03-01 Cascade Microtech, Inc. Guarded tub enclosure
US7221172B2 (en) * 2003-05-06 2007-05-22 Cascade Microtech, Inc. Switched suspended conductor and connection
US7492172B2 (en) * 2003-05-23 2009-02-17 Cascade Microtech, Inc. Chuck for holding a device under test
US7057404B2 (en) * 2003-05-23 2006-06-06 Sharp Laboratories Of America, Inc. Shielded probe for testing a device under test
US7250626B2 (en) * 2003-10-22 2007-07-31 Cascade Microtech, Inc. Probe testing structure
US7427868B2 (en) * 2003-12-24 2008-09-23 Cascade Microtech, Inc. Active wafer probe
US7187188B2 (en) * 2003-12-24 2007-03-06 Cascade Microtech, Inc. Chuck with integrated wafer support
WO2005121824A2 (en) * 2004-06-07 2005-12-22 Cascade Microtech, Inc. Thermal optical chuck
US7330041B2 (en) * 2004-06-14 2008-02-12 Cascade Microtech, Inc. Localizing a temperature of a device for testing
DE202005021386U1 (en) 2004-07-07 2007-11-29 Cascade Microtech, Inc., Beaverton Probe with a sensor with membrane suspension
US7420381B2 (en) * 2004-09-13 2008-09-02 Cascade Microtech, Inc. Double sided probing structures
EP1807724A2 (en) * 2004-11-02 2007-07-18 Umech Technologies Co. Optically enhanced digital imaging system
US20060169897A1 (en) * 2005-01-31 2006-08-03 Cascade Microtech, Inc. Microscope system for testing semiconductors
US7656172B2 (en) * 2005-01-31 2010-02-02 Cascade Microtech, Inc. System for testing semiconductors
US7535247B2 (en) * 2005-01-31 2009-05-19 Cascade Microtech, Inc. Interface for testing semiconductors
US7449899B2 (en) * 2005-06-08 2008-11-11 Cascade Microtech, Inc. Probe for high frequency signals
JP5080459B2 (en) * 2005-06-13 2012-11-21 カスケード マイクロテック インコーポレイテッド Wideband active / passive differential signal probe
US7609077B2 (en) 2006-06-09 2009-10-27 Cascade Microtech, Inc. Differential signal probe with integral balun
US7443186B2 (en) * 2006-06-12 2008-10-28 Cascade Microtech, Inc. On-wafer test structures for differential signals
US7764072B2 (en) 2006-06-12 2010-07-27 Cascade Microtech, Inc. Differential signal probing system
US7723999B2 (en) 2006-06-12 2010-05-25 Cascade Microtech, Inc. Calibration structures for differential signal probing
US7403028B2 (en) 2006-06-12 2008-07-22 Cascade Microtech, Inc. Test structure and probe for differential signals
US7876114B2 (en) * 2007-08-08 2011-01-25 Cascade Microtech, Inc. Differential waveguide probe
US7888957B2 (en) * 2008-10-06 2011-02-15 Cascade Microtech, Inc. Probing apparatus with impedance optimized interface
US8410806B2 (en) 2008-11-21 2013-04-02 Cascade Microtech, Inc. Replaceable coupon for a probing apparatus
US8319503B2 (en) 2008-11-24 2012-11-27 Cascade Microtech, Inc. Test apparatus for measuring a characteristic of a device under test

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1337866A (en) * 1917-09-27 1920-04-20 Griffiths Ethel Grace System for protecting electric cables
US3581153A (en) * 1969-04-08 1971-05-25 John Joyce Control circuitry to prevent use of a secondary circuit without static electricity grounds
US3611053A (en) * 1969-10-10 1971-10-05 Farmer Electric Products Co In Intrinsically safe circuit
US3708721A (en) * 1972-02-29 1973-01-02 Whirlpool Co Electrical connection and ground monitor
US3769549A (en) * 1972-08-07 1973-10-30 Gen Electric Electrical fire and shock protective apparatus

Also Published As

Publication number Publication date
US3866093A (en) 1975-02-11

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