| 摘要 |
A catheter for measuring a fluid in a patient, such as end-tidal CO2, having a proximal end, a proximal portion adjacent the proximal end, a distal end, a distal portion adjacent the distal end and a lumen therethrough. The distal end is adapted to terminate in the pharynx of the patient when the catheter is inserted through the patient's nasal passage. The proximal end is attached to a device for measuring the fluid. Fluid is measured as it passes from the pharynx, through the catheter and then into the measuring means.
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