Device to determine effective pulmonary blood flow
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 22, 2000
Grant Date -
N/A
app pub date -
Apr 23, 1999
filing date -
Sep 28, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a device to determine effective pulmonary blood flow (PBF) by means of partial CO.sub.2 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 CO.sub.2 rebreathing whereby, in order to measure CO.sub.2 elimination and end expiratory partial CO.sub.2 pressure a CO.sub.2 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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully