US2008221471A1PendingUtilityA1

Apparatus for collection of airway gases

49
Assignee: DJUPESLAND PERPriority: Jun 21, 2000Filed: May 23, 2008Published: Sep 11, 2008
Est. expiryJun 21, 2020(expired)· nominal 20-yr term from priority
Inventors:Per DjupeslandWei Qian
A61B 5/097
49
PatentIndex Score
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Cited by
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References
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Claims

Abstract

The invention relates to an apparatus for collection of airway gases from a subject comprising a first means for producing closure of the velum of the subject, and a second means for collection of the airway gases, wherein the first and second means need not be integral with each other.

Claims

exact text as granted — not AI-modified
1 . An apparatus for collecting airway gases, comprising:
 a mouthpiece through which a user in use exhales to deliver a gas flow therethrough, wherein the mouthpiece is configured to provide a resistance to exhalation which is such as to cause closure of the oropharyngeal velum of the user on exhalation therethrough;   a first nosepiece which is fluidly connected to the mouthpiece for fitting to one nostril of the user;   a second nosepiece for fitting to the other nostril of the user; and   a collection device which is fluidly connected to the second nosepiece for collecting airway gases as delivered from the second nosepiece.   
   
   
       2 . The apparatus of  claim 1 , wherein the collection device comprises a collection reservoir. 
   
   
       3 . The apparatus of  claim 1 , wherein the collection device comprises a condenser. 
   
   
       4 . The apparatus of  claim 1 , further comprising:
 a further collection device which is fluidly connected between the mouthpiece and the first nosepiece for collecting one or more gases from the gas flow as delivered to the first nosepiece.   
   
   
       5 . The apparatus of  claim 4 , wherein the further collection device comprises a collection reservoir. 
   
   
       6 . The apparatus of  claim 1 , further comprising:
 at least one collection element for collecting one or more substances from the delivered gas flow.   
   
   
       7 . The apparatus of  claim 6 , wherein the substance comprises a gas. 
   
   
       8 . The apparatus of  claim 6 , wherein the substance comprises particles. 
   
   
       9 . The apparatus of  claim 6 , wherein the substance comprises micro-organisms or parts thereof. 
   
   
       10 . The apparatus of  claim 6 , wherein any or each collection device includes a collection element. 
   
   
       11 . The apparatus of  claim 10 , wherein the collection element comprises a coating within the respective collection device. 
   
   
       12 . The apparatus of  claim 10 , wherein the collection element is a removable element. 
   
   
       13 . The apparatus of  claim 12 , wherein the collection element is a filter. 
   
   
       14 . The apparatus of  claim 6 , wherein the at least one collection element is a removable element. 
   
   
       15 . The apparatus of  claim 14 , wherein the at least one collection element is disposed downstream of the second nosepiece. 
   
   
       16 . The apparatus of  claim 14 , wherein the at least one collection element is a filter. 
   
   
       17 . An apparatus for collecting airway gases, comprising:
 a mouthpiece into which a user in use exhales, wherein the mouthpiece is configured to provide a resistance to exhalation which is such as to cause closure of the oropharyngeal velum of the user on exhalation thereinto;   a nosepiece for fitting to one nostril of a nasal airway of the user;   a gas flow generator for providing a gas flow through the nasal airway of the user from the other nostril to the one nostril of the user while the oropharyngeal velum of the user is closed; and   a collection device which is fluidly connected to the nosepiece for collecting airway gases as delivered therefrom.   
   
   
       18 . The apparatus of  claim 17 , wherein the collection device comprises a collection reservoir. 
   
   
       19 . The apparatus of  claim 17 , wherein the collection device comprises a condenser. 
   
   
       20 . The apparatus of  claim 17 , further comprising:
 a further collection device which is fluidly connected to the mouthpiece for collecting one or more gases from the exhaled gas flow.   
   
   
       21 . The apparatus of  claim 20 , wherein the further collection device comprises a collection reservoir. 
   
   
       22 . The apparatus of  claim 20 , wherein the further collection device comprises a condenser. 
   
   
       23 . The apparatus of  claim 17 , further comprising:
 at least one collection element which is disposed downstream of the nosepiece for collecting one or more substances from the gas flow as delivered therefrom.   
   
   
       24 . The apparatus of  claim 23 , wherein the substance comprises a gas. 
   
   
       25 . The apparatus of  claim 23 , wherein the substance comprises particles. 
   
   
       26 . The apparatus of  claim 23 , wherein the substance comprises micro-organisms or parts thereof. 
   
   
       27 . The apparatus of  claim 23 , wherein any or each collection device includes a collection element. 
   
   
       28 . The apparatus of  claim 27 , wherein the collection element comprises a coating within the collection device. 
   
   
       29 . The apparatus of  claim 27 , wherein the collection element is a removable element. 
   
   
       30 . The apparatus of  claim 29 , wherein the collection element is a filter. 
   
   
       31 . The apparatus of  claim 27 , wherein the at least one collection element is a removable element. 
   
   
       32 . The apparatus of  claim 31 , wherein the at least one collection element is a filter.

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