SE387532B - Anordning for metning av tryck innefattande en halvledarskiva med minst en deformationskenslig felteffekttransistor - Google Patents

Anordning for metning av tryck innefattande en halvledarskiva med minst en deformationskenslig felteffekttransistor

Info

Publication number
SE387532B
SE387532B SE7404647A SE7404647A SE387532B SE 387532 B SE387532 B SE 387532B SE 7404647 A SE7404647 A SE 7404647A SE 7404647 A SE7404647 A SE 7404647A SE 387532 B SE387532 B SE 387532B
Authority
SE
Sweden
Prior art keywords
saturing
power transistor
field power
sensitive field
pressure including
Prior art date
Application number
SE7404647A
Other languages
English (en)
Swedish (sv)
Inventor
Balme M La
Original Assignee
Thomson Medical Telco
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 Thomson Medical Telco filed Critical Thomson Medical Telco
Publication of SE387532B publication Critical patent/SE387532B/xx

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/056—Transvascular endocardial electrode systems
    • A61N1/0565—Electrode heads
    • 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
    • A61N1/362—Heart stimulators
    • A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
    • A61N1/36514—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure
    • A61N1/36564—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure controlled by blood pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0051—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance
    • G01L9/0052—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of piezoresistive elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • 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
    • Y10S128/902—Biological signal amplifier

Landscapes

  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • Physiology (AREA)
  • Hematology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • Biophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
SE7404647A 1973-04-09 1974-04-05 Anordning for metning av tryck innefattande en halvledarskiva med minst en deformationskenslig felteffekttransistor SE387532B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7312666A FR2224752B1 (xx) 1973-04-09 1973-04-09

Publications (1)

Publication Number Publication Date
SE387532B true SE387532B (sv) 1976-09-13

Family

ID=9117613

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7404647A SE387532B (sv) 1973-04-09 1974-04-05 Anordning for metning av tryck innefattande en halvledarskiva med minst en deformationskenslig felteffekttransistor

Country Status (7)

Country Link
US (1) US3946724A (xx)
JP (1) JPS5059068A (xx)
DE (1) DE2416665A1 (xx)
FR (1) FR2224752B1 (xx)
GB (1) GB1457202A (xx)
IT (1) IT1012549B (xx)
SE (1) SE387532B (xx)

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DE3814717A1 (de) * 1988-04-30 1989-11-09 Pfister Gmbh Einrichtung zum feststellen von schwingungen
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IT1245814B (it) * 1991-05-21 1994-10-18 Sorin Biomedica Spa Dispositivo cardiostimolatore del tipo rate responsive
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IT1260692B (it) * 1993-10-05 1996-04-22 Sorin Biomedica Spa Dispositivo per la determinazione della funzione miocardica e relativoprocedimento.
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JP3570800B2 (ja) * 1995-11-01 2004-09-29 株式会社東海理化電機製作所 センサ機能を備えたカテーテル
US5902248A (en) * 1996-11-06 1999-05-11 Millar Instruments, Inc. Reduced size catheter tip measurement device
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Also Published As

Publication number Publication date
DE2416665A1 (de) 1974-10-17
JPS5059068A (xx) 1975-05-22
US3946724A (en) 1976-03-30
GB1457202A (en) 1976-12-01
FR2224752A1 (xx) 1974-10-31
FR2224752B1 (xx) 1977-09-02
IT1012549B (it) 1977-03-10

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