JP3470764B2 - 体内プローブを用いて流体の速度、特に大動脈の流量を正確に測定する方法 - Google Patents
体内プローブを用いて流体の速度、特に大動脈の流量を正確に測定する方法Info
- Publication number
- JP3470764B2 JP3470764B2 JP21345293A JP21345293A JP3470764B2 JP 3470764 B2 JP3470764 B2 JP 3470764B2 JP 21345293 A JP21345293 A JP 21345293A JP 21345293 A JP21345293 A JP 21345293A JP 3470764 B2 JP3470764 B2 JP 3470764B2
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic transducer
- probe
- velocity
- conduit
- energy
- 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
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/06—Measuring blood 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
- G01F1/66—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
- G01F1/662—Constructional details
-
- 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
- G01F1/663—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 by measuring Doppler frequency shift
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
- G01P5/241—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by using reflection of acoustical waves, i.e. Doppler-effect
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- Molecular Biology (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Veterinary Medicine (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Aviation & Aerospace Engineering (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biophysics (AREA)
- Hematology (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Measuring Volume Flow (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9211425A FR2695999B1 (fr) | 1992-09-21 | 1992-09-21 | Sonde ultrasonore pour déterminer avec précision la vitesse d'un liquide et, en particulier, le débit aortique. |
FR9211425 | 1992-09-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06129888A JPH06129888A (ja) | 1994-05-13 |
JP3470764B2 true JP3470764B2 (ja) | 2003-11-25 |
Family
ID=9433870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21345293A Expired - Fee Related JP3470764B2 (ja) | 1992-09-21 | 1993-08-05 | 体内プローブを用いて流体の速度、特に大動脈の流量を正確に測定する方法 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP3470764B2 (fr) |
FR (1) | FR2695999B1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2799633B1 (fr) * | 1999-10-14 | 2002-03-22 | Sometec | Procede et dispositif d'amelioration de la precision de mesure d'une vitesse d'un fluide |
FR2790942B1 (fr) | 1999-03-17 | 2001-11-30 | Sometec | Dispositif de protection d'une enveloppe, utilisation d'un dispositif de protection d'une enveloppe, procede de montage d'une enveloppe sur une sonde et procede de realisation d'un dispositif de protection d'une enveloppe |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2461264C3 (de) * | 1974-12-23 | 1978-06-01 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Vorrichtung für die Messung des Volumenstroms strömender Medien |
FR2424733A1 (fr) * | 1978-05-05 | 1979-11-30 | Inst Nat Sante Rech Med | Sonde intracorporelle ultra-sonore |
US4947852A (en) * | 1988-10-05 | 1990-08-14 | Cardiometrics, Inc. | Apparatus and method for continuously measuring volumetric blood flow using multiple transducer and catheter for use therewith |
-
1992
- 1992-09-21 FR FR9211425A patent/FR2695999B1/fr not_active Expired - Fee Related
-
1993
- 1993-08-05 JP JP21345293A patent/JP3470764B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2695999A1 (fr) | 1994-03-25 |
FR2695999B1 (fr) | 1994-12-30 |
JPH06129888A (ja) | 1994-05-13 |
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