发明名称 |
Arrangement for the determination of the effective pulmonary blood flow |
摘要 |
The invention relates to a device to determine effective pulmonary blood flow (PBF) by means of partial CO2 rebreathing. The device is characterized in that it comprises an endotracheal tube whose conduit leading from the patient to the respirator is divided up into two lanes between a controllable three-way valve (4) and a Y-piece; one lane builds a larger dead area (6) for CO2 rebreathing whereby, in order to measure CO2 elimination and end expiratory partial CO2 pressure a CO2 sensor (3) and a respiration flow sensor (1) are provided on the endotracheal tube of the patient. The calculation of effective pulmonary blood flow is provided by a microprocessor/controller (7) which also controls the three-way valve (4) which provides the switching between both lanes.
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申请公布号 |
US6394962(B1) |
申请公布日期 |
2002.05.28 |
申请号 |
US20000638996 |
申请日期 |
2000.08.14 |
申请人 |
TECHNISCHE UNIVERSITAET DRESDEN |
发明人 |
GAMA DE ABREU MARCELO;ALBRECHT DETLEV MICHAEL |
分类号 |
A61B5/026;A61B5/029;(IPC1-7):A61B5/08 |
主分类号 |
A61B5/026 |
代理机构 |
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代理人 |
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地址 |
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