SENSOR DEVICE AND MOUTHPIECE
First Claim
1. An interface for the attachment of a mouthpiece to a gas sensor device, the interface comprising a first mouthpiece engaging means for engaging a first type of mouthpiece, and a second mouthpiece engaging means for engaging a second type of mouthpiece, the interface comprising an inlet positioned such that in use it is in fluid communication with the lumen of a mouthpiece mounted on either the first or the second mouthpiece engaging means.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to gas sensing devices and to mouthpieces therefor. More particularly it relates to gas sensor devices for detecting gases in exhaled air, and to improved mouthpieces and mouthpiece interfaces for use with such devices. The invention also provides methods for using such devices and kits.
32 Citations
34 Claims
- 1. An interface for the attachment of a mouthpiece to a gas sensor device, the interface comprising a first mouthpiece engaging means for engaging a first type of mouthpiece, and a second mouthpiece engaging means for engaging a second type of mouthpiece, the interface comprising an inlet positioned such that in use it is in fluid communication with the lumen of a mouthpiece mounted on either the first or the second mouthpiece engaging means.
- 14. A gas sensor device having an interface comprising a first mouthpiece engaging means for engaging a first type of mouthpiece, and a second mouthpiece engaging means for engaging a second type of mouthpiece, and the interface comprising an inlet positioned such that in use it is in fluid communication with the lumen of a mouthpiece mounted on either the first or the second mouthpiece engaging means.
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19. The gas sensor device according to claim 19, wherein the mouthpiece has a lumen with a cross-sectional area of approximately 180 mm2 or less.
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20. A method of operating a gas sensor device, comprising the steps of:
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Providing a gas sensor device having an interface comprising a first mouthpiece engaging means for engaging a first type of mouthpiece, and a second mouthpiece engaging means for engaging a second type of mouthpiece, and the interface comprising an inlet positioned such that in use it is in fluid communication with the lumen of a mouthpiece mounted on either the first or the second mouthpiece engaging means; providing a suitable mouthpiece; and attaching the mouthpiece to the gas sensor device. - View Dependent Claims (21, 22, 23)
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- 24. A carbon monoxide or hydrogen gas sensor device, comprising a replaceable mouthpiece attached thereto via an interface, the mouthpiece comprising a tube having a cross-sectional area of approximately 180 mm2 or less.
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30. A method of operating a gas sensor device, comprising:
- providing a carbon monoxide or hydrogen gas sensor device and attaching thereto a mouthpiece having a cross-sectional area of approximately 180 mm2 or less.
- 31. The method of claim 42, further comprising the step of causing a subject to be tested to exhale into the gas sensor device through the mouthpiece.
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33. A kit, comprising:
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An interface for the attachment of a mouthpiece to a gas sensor device, the interface comprising a first mouthpiece engaging means for engaging a first type of mouthpiece, and a second mouthpiece engaging means for engaging a second type of mouthpiece, the interface comprising an inlet positioned such that in use it is in fluid communication with the lumen of a mouthpiece mounted on either the first or the second mouthpiece engaging means; and one or more mouthpieces mountable on one or more of the first and second mouthpiece engaging means.
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34. A kit, comprising:
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A gas sensor device having an interface comprising a first mouthpiece engaging means for engaging a first type of mouthpiece, and a second mouthpiece engaging means for engaging a second type of mouthpiece, and the interface comprising an inlet positioned such that in use it is in fluid communication with the lumen of a mouthpiece mounted on either the first or the second mouthpiece engaging means; and one or more mouthpieces mountable on one or more of the first and second mouthpiece engaging means.
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Specification