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1. US20110208072 - DEVICE FOR DETERMINING THE BLOOD VOLUME AND/OR BLOOD VOLUMETRIC FLOW AND METHOD FOR OPERATING THE SAME

Amt
Vereinigte Staaten von Amerika
Aktenzeichen/Anmeldenummer 12996341
Anmeldedatum 04.06.2009
Veröffentlichungsnummer 20110208072
Veröffentlichungsdatum 25.08.2011
Veröffentlichungsart A1
IPC
A61B 5/026
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
Anmelder Pfeiffer Ulrich
Knoll Reinheld
Erfinder Pfeiffer Ulrich
Knoll Reinheld
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
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 ring fluid act upon at least one pump device. The invention also relates to a method for operating such devices.