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:
Feb. 18, 2003
Filed:
Jul. 20, 2000
Applicant:
Inventors:
Assignee:
Fisher & Paykel Limited, Auckland, NZ;
Primary Examiner:
Int. Cl.
CPC ...
G01L 7/00 ;
U.S. Cl.
CPC ...
G01L 7/00 ;
Abstract
A connector is formed to connect with the outlet of a humidification chamber. A calibrated tube extends through the connector to be retained in use in at least a substantially vertical direction. A bias flow outlet also extends through the connector. In use the connector of the measuring device is fitted to the outer port of a humidification water chamber with the calibrated tube extending into the reservoir of water within the chamber. With an air supply to the chamber activated the subsequent water level in the tube indicates the operating pressure of the blower under a flow condition simulating losses through leakage in the breathing circuit and at the patient connection.