Carbon dioxide detector having borosilicate substrate
First Claim
1. An endotracheal device comprising:
- a tubular housing having one end adapted for insertion into a subject'"'"'s trachea and an other end adapted for placement external of the subject, the tubular housing defining a lumen therethrough to facilitate bidirectional passage of air into and out of the subject to ventilate the subject'"'"'s lungs; and
a carbon dioxide detector having a carbon dioxide sensitive indicator disposed on a borosilicate substrate placed within the lumen to determine the presence of carbon dioxide therein while still permitting bidirectional flow of air therethrough to ventilate the subject'"'"'s lungs.
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Accused Products
Abstract
The present disclosure relates to a carbon dioxide detector having a borosilicate substrate. It may also have a carbon dioxide responsive indicator solution disposed on the borosilicate substrate. The carbon dioxide detector may be part of a carbon dioxide detector system also including an air intake operably connected to the housing to allow air to reach the carbon dioxide detector. The carbon dioxide detector may include a borosilicate substrate and a carbon dioxide responsive indicator solution disposed on the borosilicate substrate. This detector may be part of a further system, such as a resuscitation system. The detector may be made by wetting a borosilicate substrate with a carbon dioxide responsive indicator solution and drying the indicator solution to immobilize it and form a dried carbon dioxide detector. It may be used to detect the concentration of carbon dioxide in an air sample by exposing the detector to the sample.
102 Citations
38 Claims
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1. An endotracheal device comprising:
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a tubular housing having one end adapted for insertion into a subject'"'"'s trachea and an other end adapted for placement external of the subject, the tubular housing defining a lumen therethrough to facilitate bidirectional passage of air into and out of the subject to ventilate the subject'"'"'s lungs; and a carbon dioxide detector having a carbon dioxide sensitive indicator disposed on a borosilicate substrate placed within the lumen to determine the presence of carbon dioxide therein while still permitting bidirectional flow of air therethrough to ventilate the subject'"'"'s lungs. - View Dependent Claims (2)
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3. A carbon dioxide detector comprising:
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a borosilicate substrate; and a carbon dioxide responsive indicator solution disposed on the borosilicate substrate, wherein the indicator solution changes from purple to yellow in the presence of carbon dioxide above a first level. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A carbon dioxide detector comprising:
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a borosilicate substrate; and a carbon dioxide responsive indicator solution disposed on the borosilicate substrate, wherein the indicator solution changes from purple to tan in the presence of carbon dioxide above a first level. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification