04928687 is referenced by 39 patents and cites 14 patents.

A diagnostic monitor checks the carbon dioxide (CO.sub.2) content of a gas exiting a patient during endotracheal or esophageal intubation. A plurality of composition portions substantially change color in response to exposure to the carbon dioxide. The composition portions change color in response to different times of exposure to carbon dioxide. A magnifying or condensing lens may be positioned on the monitor to enhance viewing of the color change. The monitor may advantageously be made as part of an intubation system through which the gases from a patient exit the patient. The differences in time of exposure needed to cause the color change may be accomplished by using semipermeable membranes having differing thicknesses, CO.sub.2 permeabilities, and/or surface areas with each membrane corresponding to a particular one of the composition portions.

Title
CO.sub.2 diagnostic monitor
Application Number
7/255400
Publication Number
4928687
Application Date
October 11, 1988
Publication Date
May 29, 1990
Inventor
Michael J Banner
Gainesville
FL, US
Nikolaus Gravenstein
Gainesville
FL, US
Joachim S Gravenstein
Gainesville
FL, US
Dietrich Gravenstein
Gainesville
FL, US
Samsun Lampotang
Gainesville
FL, US
Agent
Kerkam Stowell Kondracki & Clarke
Assignee
The University of Florida
FL, US
IPC
A61M 16/00
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