DocumentCode
2686065
Title
pCO2, pO2, and pH monitoring using micro-flow colorimetry
Author
Cooney, Christopher ; Towe, Bruce
Author_Institution
Bioeng. Program, Arizona State Univ., Tempe, AZ, USA
fYear
1999
fDate
8-9 Apr 1999
Firstpage
127
Lastpage
128
Abstract
pCO2, pO2 and pH levels are optically monitored using continuous micro-flow of colorimetric indicators through hollow fiber membranes in contact with blood. Optical monitoring is achieved using LEDs and photodetectors coupled to outlet micro-bore capillary tubes. Three separate hollow fiber membranes are selected based on membrane permeability to the measurand. The sensors are exposed to blood in an extracorporeal loop using continuous flow or blood withdrawal-reinfusion
Keywords
bio-optics; biochemistry; colorimetry; fluorescence; haemodynamics; membranes; microfluidics; oximetry; pH measurement; patient monitoring; peristaltic flow; LEDs; blood contact; blood gas monitor; blood withdrawal-reinfusion; colorimetric indicators; continuous micro-flow; extracorporeal loop; hollow fiber membranes; membrane permeability; micro-flow colorimetry; optical monitoring; outlet micro-bore capillary tubes; pCO2 monitoring; pH monitoring; pO2 monitoring; peristaltic pump; photodetectors; Biomembranes; Fluorescence; Light emitting diodes; Monitoring; Optical buffering; Optical fiber sensors; Photodetectors; Pumps; Reservoirs; Testing;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioengineering Conference, 1999. Proceedings of the IEEE 25th Annual Northeast
Conference_Location
West Hartford, CT
Print_ISBN
0-7803-5486-9
Type
conf
DOI
10.1109/NEBC.1999.755794
Filename
755794
Link To Document