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:
Jan. 16, 2001
Filed:
Oct. 23, 1997
St{acute over (e)}phane Ruton, Viroflay, FR;
Taema, Antony Cedex, FR;
Abstract
A respiratory assistance device, includes an inhalation branch (,) which is permanently connected, at its upstream end, to a first source (,) of a flow of pressurized gas and, at its downstream end, to a user's airway; at least a first (,) and a second (,) exhalation valve, these being arranged on the respiratory branch (,) and controlled so that they are closed during the inhalation phase; a detection unit (,) which, in proximity to the downstream end of the inhalation branch, detects the user's respiratory activity and sends a respiratory-activity data item to drive element (,), the drive element (,) controlling the first gas flow source (,) in such a way as to deliver a gas stream with substantially constant non-zero flow rate to the inhalation branch (,) throughout the exhalation phase.