IT8519775A0 - Apparato di rivelazione del flusso di un fluido per applicazioni in vivo ed industriali, con impiego di sensori della pressione differenziale a fibre ottiche. - Google Patents

Apparato di rivelazione del flusso di un fluido per applicazioni in vivo ed industriali, con impiego di sensori della pressione differenziale a fibre ottiche.

Info

Publication number
IT8519775A0
IT8519775A0 IT8519775A IT1977585A IT8519775A0 IT 8519775 A0 IT8519775 A0 IT 8519775A0 IT 8519775 A IT8519775 A IT 8519775A IT 1977585 A IT1977585 A IT 1977585A IT 8519775 A0 IT8519775 A0 IT 8519775A0
Authority
IT
Italy
Prior art keywords
vivo
fluid flow
fiber optic
differential pressure
detection apparatus
Prior art date
Application number
IT8519775A
Other languages
English (en)
Other versions
IT1183485B (it
Inventor
Robert E Einzig
Original Assignee
Optical Technologies Inc
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 Optical Technologies Inc filed Critical Optical Technologies Inc
Publication of IT8519775A0 publication Critical patent/IT8519775A0/it
Application granted granted Critical
Publication of IT1183485B publication Critical patent/IT1183485B/it

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6852—Catheters
    • A61B5/6853—Catheters with a balloon
    • 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
    • A61B5/026—Measuring blood flow
    • A61B5/0261—Measuring blood flow using optical means, e.g. infrared light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/363—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction with electrical or electro-mechanical indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/661—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters using light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means
    • G01L11/025—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means using a pressure-sensitive optical fibre
IT19775/85A 1984-03-08 1985-03-06 Apparato di rivelazione del flusso di un fluido per applicazioni in vivo ed industriali, con impiego di sensori della pressione differenziale a fibre ottiche IT1183485B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58746484A 1984-03-08 1984-03-08

Publications (2)

Publication Number Publication Date
IT8519775A0 true IT8519775A0 (it) 1985-03-06
IT1183485B IT1183485B (it) 1987-10-22

Family

ID=24349906

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19775/85A IT1183485B (it) 1984-03-08 1985-03-06 Apparato di rivelazione del flusso di un fluido per applicazioni in vivo ed industriali, con impiego di sensori della pressione differenziale a fibre ottiche

Country Status (3)

Country Link
AU (1) AU4064085A (it)
IT (1) IT1183485B (it)
WO (1) WO1985003855A1 (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5178153A (en) * 1984-03-08 1993-01-12 Einzig Robert E Fluid flow sensing apparatus for in vivo and industrial applications employing novel differential optical fiber pressure sensors
US4873989A (en) * 1984-03-08 1989-10-17 Optical Technologies, Inc. Fluid flow sensing apparatus for in vivo and industrial applications employing novel optical fiber pressure sensors
US4691709A (en) * 1986-07-01 1987-09-08 Cordis Corporation Apparatus for measuring velocity of blood flow in a blood vessel
DE3903881C1 (it) * 1989-02-10 1990-04-12 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De
SE8901358D0 (sv) * 1989-04-14 1989-04-14 Radi Medical System Saett att maeta floedet i ett blodkaerl samt anordning haerfoer
CA2044159C (en) 1989-10-11 2003-04-15 John P. Hall Integral intracranial pressure monitor and drainage catheter assembly
ATE151615T1 (de) * 1992-11-18 1997-05-15 Spectrascience Inc Diagnosebildgerät
US5439003A (en) * 1993-12-16 1995-08-08 Modern Technologies Corp. Apparatus and method for measuring fluid flow
WO2004088264A1 (en) * 2003-04-03 2004-10-14 Rand Afrikaans University Optical device for measuring fluid pressure
US7554666B2 (en) 2006-05-25 2009-06-30 Ric Investments, Llc. Sensor with optical pressure transducer and method of manufacturing a sensor component
CN108225448A (zh) * 2018-03-09 2018-06-29 中国长江电力股份有限公司 一种光纤f-p多参量智能流量传感器及测量方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2863318A (en) * 1953-06-15 1958-12-09 Bopp & Reuther G M B H Fa Differential pressure producer
US3196680A (en) * 1962-01-03 1965-07-27 Itt Flow tubes
US3215135A (en) * 1963-02-04 1965-11-02 Ernst K Franke Miniature pressure gauge for the measurement of intravascular blood pressure
US3249105A (en) * 1963-04-19 1966-05-03 American Optical Corp Devices for measuring blood pressure
US3552855A (en) * 1969-04-16 1971-01-05 Us Air Force Laser velocimeter utilizing fiber optics
US3686958A (en) * 1971-02-22 1972-08-29 Ladd Res Ind Fiber optic pressure detector
JPS528632B2 (it) * 1971-12-29 1977-03-10
US3866599A (en) * 1972-01-21 1975-02-18 Univ Washington Fiberoptic catheter
US3789667A (en) * 1972-02-14 1974-02-05 Ladd Res Ind Inc Fiber optic pressure detector
US3831588A (en) * 1972-10-16 1974-08-27 Device Res Inc Pressure sensing device
US4030485A (en) * 1974-11-12 1977-06-21 Glenfield Warner Method and apparatus for continuously monitoring systolic blood pressure
US4201222A (en) * 1977-08-31 1980-05-06 Thomas Haase Method and apparatus for in vivo measurement of blood gas partial pressures, blood pressure and blood pulse
SE419678B (sv) * 1978-10-31 1981-08-17 Gert Erik Nilsson Sett och anordning for metning av stromningsrorelser i ett fluidum
US4210029A (en) * 1979-05-04 1980-07-01 Lad Research Industries, Inc. Differential fiber optic differential pressure sensor
US4321831A (en) * 1980-09-26 1982-03-30 United Technologies Corporation Digitally compatible optical pressure measurement
US4487206A (en) * 1982-10-13 1984-12-11 Honeywell Inc. Fiber optic pressure sensor with temperature compensation and reference

Also Published As

Publication number Publication date
IT1183485B (it) 1987-10-22
AU4064085A (en) 1985-09-24
WO1985003855A1 (en) 1985-09-12

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