Hollow viscus tonometry

Details Hollow viscus tonometry Hollow viscus tonometry

A - Human Necessities

61

M

128/127, 150/9

A61M 25/00 (2006.01) A61B 5/00 (2006.01) A61M 25/10 (2006.01) G01N 33/84 (2006.01)

Patent

CA 1241584

HOLLOW VISCUS TONOMETRY Abstract Ischemia in a hollow internal organ can be detected in its incipient stages by obtaining a CO2 sample from within the organ of interest, measuring the partial pressure of CO2 sample, measuring the bicarbonate concentration of an arterial blood sample, and on the basis of these two measurements calculating the pH of the wall of the organ. The value of the pH is an indicator of the onset of ischemia in the organ. The CO2 sample is obtained by a novel catheter, multiple embodiments of which are disclosed.

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