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:
Mar. 23, 2004
Filed:
Aug. 31, 2000
Bernie F. Hete, Trafford, PA (US);
Michael Bobeck, Sarver, PA (US);
Respironics, Inc., Murrysville, PA (US);
Abstract
A high frequency pressure oscillation device and method of providing high frequency pressure oscillations to a patient. The device includes a patient circuit coupling a gas source to an airway of a patient, and a valve disposed in the patient circuit. The valve communicates the gas source with the patient's airway when in a first position and at least partially restricts communication when in a second position. A rotating drive assembly rotates the valve in a first direction such that the valve is alternatively disposed in the first and second positions. This system is capable of delivering positive and negative pressures to the airway of a patient by including a blower as the source of breathing gas. This system is also capable of superimposing a high frequency oscillating pressure signal on another pressure signal by adding a second blower in series with the first blower.