The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 2017
Filed:
Jan. 12, 2012
Jean-pierre Robitaille, Gaspe, CA;
Jean-Pierre Robitaille, Gaspe, CA;
Other;
Abstract
A nasal cannula includes a cannula body having a passageway extending therethrough from a first end to a second end and an airflow restrictor coupled to the cannula body and positioned to selectively restrict air flow through the passageway during exhalation. A flow regulator is settable to a plurality of airflow positions and cooperates with the airflow restrictor to regulate the air flow during exhalation such that the air flow during exhalation is variable in response to the airflow position of the flow regulator. In one embodiment, an airflow restrictor is deformable from an at-rest configuration to an inhalation configuration during inhalation, and exerts a substantially constant backpressure during exhalation for a predetermined range of expiration flow rate. Methods of use are also provided.