发明名称 |
PROCESS AND DEVICES FOR DETERMINING THE INSTANT OF INJECTIONAND THE DURATION OF INJECTION IN THERMODILUTION MEASUREMENTS |
摘要 |
The present invention relates to a process and devices for determining the instant of injection and the duration of injection in thermodilution measurements in which an injectate fluid at a temperature deviating from the temperature of the blood of a patient is injected at a specific injection site into a blood vessel of the patient and the temperature of the blood is measured at a measuring site downstream of the injection site, the injectate fluid being used at approximately room temperature and, before entry into the blood vessel, passed via a temperature sensor which, before the measurement, has a temperature deviating from room temperature, the temperature determined by the temperature sensor being sensed continuously, the instant of the beginning of injection being determined from a change occurring in the sensed temperature and the instant of the end of injection being determined from a subsequently occurring change in direction of the temperature profile.
|
申请公布号 |
CA2246563(C) |
申请公布日期 |
2003.02.11 |
申请号 |
CA19982246563 |
申请日期 |
1998.09.03 |
申请人 |
PULSION VERWALTUNGS GMBH & CO. MEDICAL SYSTEMS KG. |
发明人 |
SEEBAUER, TOBIAS;JOEKEN, STEPHAN;PFEIFFER, ULRICH |
分类号 |
A61B5/028;(IPC1-7):A61B5/00 |
主分类号 |
A61B5/028 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|