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:
Jul. 21, 2020
Filed:
Aug. 06, 2014
Fisher & Paykel Healthcare Limited, Auckland, NZ;
Callum James Thomas Spence, Auckland, NZ;
Rachael Porter, Auckland, NZ;
Craig Karl White, Auckland, NZ;
Alicia Jerram Hunter Evans, Auckland, NZ;
Fisher & Paykel Healthcare Limited, Auckland, NZ;
Abstract
An infant positive airway pressure (PAP) or continuous positive airway pressure (CPAP) device and related patient interface and system, which can provide a flow of breathing gas to the patient interface. The device can be incorporated into the patient interface and includes at least one interior passage in the shape of a nozzle having a throat, a first portion upstream of the throat and a second portion downstream of the throat relative to the flow of breathing gas. The passage has a vent opening within the second portion and the interior passage defines a continuously curved surface extending between the throat and the vent opening. The second portion of the nozzle preferably is divergent and the first portion can be convergent or non-convergent (e.g., constant cross-section).