Oral/nasal cannula
OwnerGershon Levitsky, Joshua L. Colman +1inventors
InventorsGershon Levitsky, Joshua L. Colman, Sanford Brown
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Abstract
A nasal/oral cannula for the collection of exhaled gases from the nostrils of a patient, made up of two nasal prongs for insertion into the patient's nostrils and a collection tube for the collection of the exhaled gases, the nasal prongs and the collection tube being connected at a single junction, such that the exhaled gases flow freely from the nasal prongs to the collection tube. An oral prong can also be provided, whose end is placed near the oral cavity of the patient, the oral prong too being connected at the single junction of the nasal prongs and the collection tube.
Claims28
A nasal cannula for collection of exhaled gases from a patient having nostrils, comprising:
- two nasal prongs for insertion into the nostrils of the patient;
- and
- a collection tube for the collection of the exhaled gases from the patient, said nasal prongs and said collection tube being connected at a single junction, such that the exhaled gases flow freely from said nasal prongs to said collection tube.
An oral/nasal cannula for collection of exhaled gases from a patient having nostrils and an oral cavity, comprising:
- two nasal prongs form insertion into the nostrils of the patient;
- an oral prong for placement near the oral cavity of the patient;
- and
- a collection tube for the collection of the exhaled gases from the patient, said nasal prongs, said oral prong and said collection tube being connected at a single junction substantially near the nostrils of the patient, such that the exhaled gases flow freely from said nasal prongs and said oral prong to said collection tube.
A method of collecting exhaled gases from a patient having nostrils, the method comprising the steps of:
- (a) providing a cannula featuring:
- two nasal prongs for insertion into the nostrils of the patient;
- and
- a collection tube for collecting the exhaled gases from the patient, said nasal prongs, and said collection tube being connected at a single junction substantially near the nostrils of the patient, such that the exhaled gases flow freely from said nasal prongs to said collection tube;
- (b) inserting said nasal prongs into the nostrils of the patient;
- (c) attaching said collection tube to a conduit for conducting gas;
- (d) connecting said conduit to a gas analyzer;
- and
- (e) applying a force at said gas analyzer, such that the exhaled gases flowing through the cannula moves from said collection tube to said gas analyzer.
A method of collecting exhaled gases from a patient having nostrils and an oral cavity, the method comprising the steps of:
- (a) providing a cannula featuring:
- two nasal prongs for insertion into the nostrils of the patient;
- an oral prong for placement near the oral cavity of the patient;
- and
- a collection tube for collecting the exhaled gases from the patient, said nasal prongs, said oral prong and said collection tube being connected at a single junction substantially near the nostrils of the patient, such that the exhaled gases flow freely from said nasal prongs and said oral prong to said collection tube;
- (b) inserting said nasal prongs into the nostrils of the patient;
- (c) placing said oral prong near the oral cavity of the patient;
- (d) attaching said collection tube to a conduit for conducting gas;
- (e) connecting said conduit to a gas analyzer;
- and
- (f) applying a force at said gas analyzer, such that the exhaled gases flowing through the cannula move from said collection tube to said gas analyzer.
A cannula for collection of exhaled gases from a patient and for delivery of oxygen to a patient having nostrils and an oral cavity, comprising:
- (a) two nasal prongs for insertion into the nostrils of the patient;
- (b) a collection tube for the collection of the exhaled gases from the patient, said nasal prongs, and said collection tube being connected at a single junction, such that the exhaled gases flow freely from said nasal prongs to said collection tube;
- (c) an oxygen tube for delivery of oxygen, said oxygen tube being located near the nostrils of the patient;
- and
- (d) two oxygen inlets connected to said oxygen tube and being disposed such that said oxygen flows from said oxygen tube into the nostrils of the patient.
Dependencies are inferred from the claim text.