Gas sampling system
First Claim
1. A gas sampling system for conducting respiratory gases from a patient respiratory gas output mechanism to a respiratory gas monitor, the gas sampling system comprising:
- an input connector configured to couple the gas sampling system to the patient respiratory gas output mechanism;
a gas sampling tube coupled to the input connector, the gas sampling tube being configured to conduct the respiratory gases;
an output dryer tubing connected to the gas sampling tube, the output dryer tubing being characterized by a tube length and a relative moisture removal efficiency, the relative moisture removal efficiency being dependent on the tube length, the tube length being selected to limit the moisture content of the respiratory gasses being directed into the respiratory gas monitor to a substantially predetermined level; and
an output connector coupled to the output dryer tubing, the output connector being configured to couple to the respiratory gas monitor, the output connector including a valve mechanism that closes in response to exposure to a predetermined amount of moisture.
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Accused Products
Abstract
The present invention is directed to a gas sampling system for conducting respiratory gases from a patient respiratory gas output mechanism to a respiratory gas monitoring device. A gas sampling tube is coupled to an input connector. The gas sampling tube is configured to conduct the respiratory gases from the patient to the gas monitoring device. An output connector couples the gas sampling tube to the monitor input connector. An output dryer tube is coupled between the gas sampling tube and the output connector. The output dryer tube is characterized by a tube length and a relative moisture removal efficiency. The relative moisture removal efficiency is dependent on the tube length. The tube length is selected to limit the moisture content of the respiratory gasses being directed into the respiratory gas monitor to a predetermined level.
53 Citations
23 Claims
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1. A gas sampling system for conducting respiratory gases from a patient respiratory gas output mechanism to a respiratory gas monitor, the gas sampling system comprising:
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an input connector configured to couple the gas sampling system to the patient respiratory gas output mechanism;
a gas sampling tube coupled to the input connector, the gas sampling tube being configured to conduct the respiratory gases;
an output dryer tubing connected to the gas sampling tube, the output dryer tubing being characterized by a tube length and a relative moisture removal efficiency, the relative moisture removal efficiency being dependent on the tube length, the tube length being selected to limit the moisture content of the respiratory gasses being directed into the respiratory gas monitor to a substantially predetermined level; and
an output connector coupled to the output dryer tubing, the output connector being configured to couple to the respiratory gas monitor, the output connector including a valve mechanism that closes in response to exposure to a predetermined amount of moisture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A gas sampling system for conducting respiratory gases from a patient respiratory gas output mechanism to a respiratory gas monitor, the gas sampling system comprising:
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an input connector configured to couple the gas sampling system to the patient respiratory gas output mechanism;
a gas sampling tube coupled to the input connector, the gas sampling tube being configured to conduct the respiratory gases;
an output dryer tubing connected to the gas sampling tube, the output dryer tubing receiving unheated and/or non-vaporized respiratory gases from the gas sampling tube, the output dryer tubing being characterized by a tube length and a relative moisture removal efficiency, the relative moisture removal efficiency being dependent on the tube length, the tube length being selected to limit the moisture content of the respiratory gasses being directed into the respiratory gas monitor to a substantially predetermined level;
an output connector coupled to the output dryer tubing, the output connector being configured to couple to the respiratory gas monitor; and
wherein the gas sampling system does not include electrically powered components.
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Specification