DE69121924D1 - Sonde für Strömungsgeschwindigkeit - Google Patents
Sonde für StrömungsgeschwindigkeitInfo
- Publication number
- DE69121924D1 DE69121924D1 DE69121924T DE69121924T DE69121924D1 DE 69121924 D1 DE69121924 D1 DE 69121924D1 DE 69121924 T DE69121924 T DE 69121924T DE 69121924 T DE69121924 T DE 69121924T DE 69121924 D1 DE69121924 D1 DE 69121924D1
- Authority
- DE
- Germany
- Prior art keywords
- flow velocity
- velocity probe
- probe
- flow
- velocity
- 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 - Fee Related
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
- A61B5/026—Measuring blood flow
- A61B5/0275—Measuring blood flow using tracers, e.g. dye dilution
- A61B5/028—Measuring blood flow using tracers, e.g. dye dilution by thermo-dilution
-
- 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
- G01F1/68—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 thermal effects
- G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
-
- 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
- G01F1/68—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 thermal effects
- G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
- G01F1/688—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
- G01F1/69—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element of resistive type
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physiology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Hematology (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measuring Volume Flow (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016098A JP2866132B2 (ja) | 1990-01-29 | 1990-01-29 | 流速センサプローブ |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69121924D1 true DE69121924D1 (de) | 1996-10-17 |
DE69121924T2 DE69121924T2 (de) | 1997-02-06 |
Family
ID=11907041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69121924T Expired - Fee Related DE69121924T2 (de) | 1990-01-29 | 1991-01-29 | Sonde für Strömungsgeschwindigkeit |
Country Status (5)
Country | Link |
---|---|
US (1) | US5373850A (de) |
EP (1) | EP0440155B1 (de) |
JP (1) | JP2866132B2 (de) |
AU (1) | AU639065B2 (de) |
DE (1) | DE69121924T2 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5553622A (en) * | 1991-01-29 | 1996-09-10 | Mckown; Russell C. | System and method for controlling the temperature of a catheter-mounted heater |
US6387052B1 (en) * | 1991-01-29 | 2002-05-14 | Edwards Lifesciences Corporation | Thermodilution catheter having a safe, flexible heating element |
US5617870A (en) * | 1993-04-29 | 1997-04-08 | Scimed Life Systems, Inc. | Intravascular flow measurement system |
US5509424A (en) * | 1994-01-28 | 1996-04-23 | Aws Salim Nashef | Continuous cardiac output monitoring system |
US5525040A (en) * | 1994-03-31 | 1996-06-11 | B&B Financial Planning Inc. | Controller for oil wells with a thermal dispersion probe |
JP3696682B2 (ja) * | 1996-02-09 | 2005-09-21 | テルモ株式会社 | 流速測定用センサプローブ |
DE69732854T2 (de) * | 1996-10-02 | 2005-08-11 | Edwards Lifesciences Corp., Irvine | Katheter mit vermindertem rauschen |
US6343223B1 (en) * | 1997-07-30 | 2002-01-29 | Mallinckrodt Inc. | Oximeter sensor with offset emitters and detector and heating device |
US6431010B1 (en) | 1998-03-09 | 2002-08-13 | Michael A. Joffe | Optical fiber-based fluid flow anemometer |
US6251107B1 (en) * | 1998-06-25 | 2001-06-26 | Cardima, Inc. | Ep catheter |
US6986744B1 (en) | 1999-02-02 | 2006-01-17 | Transonic Systems, Inc. | Method and apparatus for determining blood flow during a vascular corrective procedure |
DE29907566U1 (de) * | 1999-04-28 | 1999-08-26 | Honsberg & Co. KG, 42897 Remscheid | Strömungssensor |
US6383144B1 (en) * | 2000-01-18 | 2002-05-07 | Edwards Lifesciences Corporation | Devices and methods for measuring temperature of a patient |
US6746408B2 (en) | 2001-05-29 | 2004-06-08 | Transonic Systems Inc. | Method of blood flow measurement in arterio-venous hemodialysis shunts by indicator dilution |
GB0425186D0 (en) * | 2004-11-15 | 2004-12-15 | Univ Cambridge Tech | In-situ calibration verification device and method for electromagnetic flowmeters |
US9557344B2 (en) | 2011-07-12 | 2017-01-31 | The Hong Kong Polytechnic University | Sensor for measuring flow speed of a fluid |
WO2013063377A1 (en) * | 2011-10-28 | 2013-05-02 | The Feinstein Institute For Medical Research | Microchip sensor for continuous monitoring of regional blood flow |
JP6618254B2 (ja) * | 2014-12-24 | 2019-12-11 | 日本ライフライン株式会社 | 温度測定装置およびカテーテルシステム |
WO2016111261A1 (ja) * | 2015-01-05 | 2016-07-14 | ニプロ株式会社 | 血流計及び測定装置 |
US11564584B2 (en) * | 2016-09-28 | 2023-01-31 | Koninklijke Philips N.V. | System for determining blood flow |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3075515A (en) * | 1958-10-17 | 1963-01-29 | Albert M Richards | Blood flow meter |
US3435400A (en) * | 1966-01-26 | 1969-03-25 | Paul Beckman | Thermal probe |
DE1573240A1 (de) * | 1966-07-05 | 1970-11-26 | Rudolf Koch | Thermosonde zum Messen der Herzbluttemperatur |
US3438253A (en) * | 1966-11-15 | 1969-04-15 | Frederick W Kuether | Thermal device for measuring direction and velocity of fluid flow |
US3595079A (en) * | 1967-11-13 | 1971-07-27 | Univ Northwestern | Fluid flow velocity measuring apparatus |
US3678922A (en) * | 1971-01-14 | 1972-07-25 | Univ Temple | Dilution method and apparatus for measurement of fluid flow rate |
US3789831A (en) * | 1972-02-11 | 1974-02-05 | D Kopaniky | Thermoelectric probe apparatus for tissue fluid flow measurement |
US3820530A (en) * | 1973-02-16 | 1974-06-28 | Gifford Instr Labor Inc | Cardiac output measuring method and apparatus |
US3933149A (en) * | 1974-04-18 | 1976-01-20 | Salera Edmond A | Anisothermal differentiator |
DD118524A5 (de) * | 1974-05-24 | 1976-03-12 | ||
FR2291731A1 (fr) * | 1974-11-20 | 1976-06-18 | Obermajer Wladimir | Procede et dispositif de mesure de la capacite cardiaque |
US3995623A (en) * | 1974-12-23 | 1976-12-07 | American Hospital Supply Corporation | Multipurpose flow-directed catheter |
US4240441A (en) * | 1978-10-10 | 1980-12-23 | The United States Of America As Represented By The Secretary Of The Navy | Carotid thermodilution catheter |
US4230126A (en) * | 1978-11-20 | 1980-10-28 | Elings Virgil B | Apparatus and method for measuring extravascular lung water |
US4354504A (en) * | 1979-09-04 | 1982-10-19 | Bro William J | Thermal diffusion flow probe |
US4380237A (en) * | 1979-12-03 | 1983-04-19 | Massachusetts General Hospital | Apparatus for making cardiac output conductivity measurements |
US4628743A (en) * | 1981-07-06 | 1986-12-16 | The Dow Chemical Company | Apparatus and method for metering sub-10 cc/minute liquid flow |
DE3128107C2 (de) * | 1981-07-16 | 1983-07-21 | GMS, Gesellschaft für medizinische Sondentechnik mbH, 2300 Kiel | Impulsbeheizte thermoelektrische Strömungsmeßeinrichtung für lebendes Gewebe |
US4572206A (en) * | 1982-04-21 | 1986-02-25 | Purdue Research Foundation | Method and apparatus for measuring cardiac output |
US4502488A (en) * | 1983-01-13 | 1985-03-05 | Allied Corporation | Injection system |
US4542748A (en) * | 1983-03-07 | 1985-09-24 | American Hospital Supply Corp. | Apparatus and method for measuring cardiac output |
NL189547C (nl) * | 1983-04-12 | 1993-05-17 | Univ Erasmus | Stelsel voor het bepalen van de stroomsterkte van het hart van een patient. |
US4621646A (en) * | 1983-12-15 | 1986-11-11 | The United States Of America As Represented By The Secretary Of The Army | Blood flow measuring method |
US4796640A (en) * | 1984-01-13 | 1989-01-10 | American Hospital Supply Corporation | Apparatus with fast response thermistor |
US4632125A (en) * | 1984-01-13 | 1986-12-30 | American Hospital Supply Corp. | Right heart ejection fraction and cardiac output catheter |
JPS61125329A (ja) * | 1984-11-21 | 1986-06-13 | テルモ株式会社 | 心拍出量測定装置 |
US4548516A (en) * | 1984-12-24 | 1985-10-22 | Helenowski Tomasz K | Sequential thermography fluid flow indicator |
JPS62207435A (ja) * | 1986-03-07 | 1987-09-11 | テルモ株式会社 | 心拍出量測定用カテ−テル |
US4901734A (en) * | 1987-08-17 | 1990-02-20 | Nova Medical Specialties | Dual-thermistor thermodilution catheter |
US4960109A (en) * | 1988-06-21 | 1990-10-02 | Massachusetts Institute Of Technology | Multi-purpose temperature sensing probe for hyperthermia therapy |
JPH02128753A (ja) * | 1988-11-09 | 1990-05-17 | Terumo Corp | 心拍出量測定装置 |
-
1990
- 1990-01-29 JP JP2016098A patent/JP2866132B2/ja not_active Expired - Fee Related
-
1991
- 1991-01-25 AU AU70036/91A patent/AU639065B2/en not_active Ceased
- 1991-01-29 EP EP91101125A patent/EP0440155B1/de not_active Expired - Lifetime
- 1991-01-29 DE DE69121924T patent/DE69121924T2/de not_active Expired - Fee Related
-
1992
- 1992-05-21 US US07/888,464 patent/US5373850A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU639065B2 (en) | 1993-07-15 |
US5373850A (en) | 1994-12-20 |
JPH03221815A (ja) | 1991-09-30 |
DE69121924T2 (de) | 1997-02-06 |
EP0440155A3 (en) | 1991-09-11 |
AU7003691A (en) | 1991-11-14 |
EP0440155A2 (de) | 1991-08-07 |
EP0440155B1 (de) | 1996-09-11 |
JP2866132B2 (ja) | 1999-03-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |