Afonso, 1966 - Google Patents
A thermodilution flowmeterAfonso, 1966
- Document ID
- 5113372850616469788
- Author
- Afonso S
- Publication year
- Publication venue
- Journal of applied physiology
External Links
Snippet
AFONSO, SKODA. A thermodilution Jowmeter. J. Appl. Physiol. 21 (6): 1883-1886. x966.--A thermodilution flowmeter for intravascular use is described. Heat produced by an electrically heated coil is distributed uniformly in the blood stream by a stirrer and the temperature …
- 210000004369 Blood 0 abstract description 33
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Detecting, measuring or recording 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Detecting, measuring or recording for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radiowaves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Detecting, measuring or recording for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts; Diagnostic temperature sensing, e.g. for malignant or inflammed tissue
- A61B5/015—By temperature mapping of body part
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Detecting, measuring or recording for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters; Monitoring media flow to the body
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Afonso | A thermodilution flowmeter | |
US4217910A (en) | Internal jugular and left ventricular thermodilution catheter | |
Ganz et al. | Measurement of blood flow by thermodilution | |
EP0278177B1 (en) | Method and apparatus for measuring oxygen partial pressure and temperature in living tissue | |
US4785823A (en) | Methods and apparatus for performing in vivo blood thermodilution procedures | |
Ganz et al. | A new technique for measurement of cardiac output by thermodilution in man | |
Levett et al. | Thermodilution cardiac output: a critical analysis and review of the literature | |
PT618780E (en) | APPARATUS FOR CONTINUOUS MONITORING OF CARDIAC DEBIT | |
Hosie | Thermal-dilution technics | |
US6551250B2 (en) | Transit time thermodilution guidewire system for measuring coronary flow velocity | |
US4153048A (en) | Thermodilution catheter and method | |
US5108372A (en) | Intravenous fluid temperature regulation method and apparatus | |
US6394961B1 (en) | Method to increase transpulmonary thermodilution cardiac output accuracy by use of extravascular thermovolume to control the amount of thermal indicator | |
US3789831A (en) | Thermoelectric probe apparatus for tissue fluid flow measurement | |
US4901734A (en) | Dual-thermistor thermodilution catheter | |
US20030225336A1 (en) | Devices and methods for measuring blood flow rate or cardiac output and for heating or cooling the body | |
US7549965B2 (en) | Compensation method for thermodilution catheter having an injectate induced thermal effect in a blood flow measurement | |
US20120165689A1 (en) | Catheter with common guide wire and indicator lumen | |
DE69121924T2 (en) | Flow velocity probe | |
Khalil et al. | Measurement of cardiac output by thermal-dilution and direct Fick methods in dogs. | |
US5954659A (en) | Method and apparatus for invasively measuring cardiac output by detecting temperature differences of blood heated by radiation | |
EP0530308A1 (en) | Apparatus and method for monitoring cardiac output | |
Reynolds et al. | Comparison of four methods for measuring mammary blood flow in conscious goats | |
Bennett et al. | Influence of anesthesia (ether, cyclopropane, sodium evipal) on the circulation under normal and shock conditions | |
Delaunois | Thermal method for continuous blood-velocity measurements in large blood vessels, and cardiac-output determination |