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1. CA2726943 - DEVICE FOR DETERMINING THE BLOOD VOLUME AND/OR BLOOD VOLUMETRIC FLOW AND METHOD FOR OPERATING THE SAME

Amt
Kanada
Aktenzeichen/Anmeldenummer 2726943
Anmeldedatum 04.06.2009
Veröffentlichungsnummer 2726943
Veröffentlichungsdatum 10.12.2009
Veröffentlichungsart A1
IPC
A61B 5/028
ASektion A Täglicher Lebensbedarf
61Medizin oder Tiermedizin; Hygiene
BDiagnostik; Chirurgie; Identifizierung
5Messen zu diagnostischen Zwecken; Identifizieren von Personen
02Messen des Pulses, des Herzschlages, des Blutdruckes oder der Blutströmung; kombiniertes Bestimmen von Puls, Herzschlag und Blutdruck; Auswerten des Zustandes der Herzgefäße, soweit nicht anderweitig vorgesehen, z.B. Anwenden von Kombinationen technischer Verfahren, die in dieser Gruppe vorgesehen sind, mit Elektrokardiografie; Herzkatheter für Blutdruckmessung
026Messen der Blutströmung
0275unter Verwendung von Aufspürmitteln, z.B. Farblösungen
028mittels Thermo-Lösungen
CPC
A61B 5/028
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
02Detecting, 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
026Measuring blood flow
0275using tracers, e.g. dye dilution
028by thermo-dilution
A61B 5/029
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
02Detecting, 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
026Measuring blood flow
029Measuring or recording blood output from the heart, e.g. minute volume
A61M 1/3607
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; ; Extra-corporeal blood circuits
3607Regulation parameters
A61M 2205/3368
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
2205General characteristics of the apparatus
33Controlling, regulating or measuring
3368Temperature
A61M 1/36
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; ; Extra-corporeal blood circuits
A61M 2205/3331
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
2205General characteristics of the apparatus
33Controlling, regulating or measuring
3331Pressure; Flow
Anmelder EDWARDS LIFESECIENCES IPRM AG
Prioritätsdaten 102008026708 04.06.2008 DE
Titel
(EN) DEVICE FOR DETERMINING THE BLOOD VOLUME AND/OR BLOOD VOLUMETRIC FLOW AND METHOD FOR OPERATING THE SAME
(FR) DISPOSITIF POUR DETERMINER LE VOLUME SANGUIN ET/OU LE DEBIT SANGUIN ET PROCEDE DE FONCTIONNEMENT ASSOCIE
Zusammenfassung
(EN)


The invention relates to a device (1) for determining the
blood volume and/or blood volumetric flow of a circulation section, comprising

a fluid storage unit (2) for storing a measuring fluid (3), an injection
device for the injection of the measuring fluid into the circulatory system,
at least one pump device (5) disposed between the fluid storage unit
and the injection device, means for determining at least one property of the
measuring fluid before injection into the circulatory system, further means
for determining the respective properties in the circulatory system downstream

of the injection site, and an analysis device for calculating the
blood volume or volumetric flow as a function of the properties determined.
The invention further relates to such a device having means for conditioning
the measuring fluid. The invention provides that the measuring
fluid can be supplied from the fluid storage unit to a second pump device
(9) by means of a first pump device (5), and from the second pump device
to the catheter. The invention further provides that the measuring fluid can
be supplied to the catheter (11) at a first volumetric flow provided by the
first pump device, said first volumetric flow able to be temporarily, in
particular regularly, superimposed by a second volumetric flow provided by
the second pump device, and/or that the means for conditioning the measuring
fluid act upon at least one pump device. The invention also relates to
a method for operating such devices.