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:
Oct. 13, 2015
Filed:
Mar. 04, 2009
John Mccune Anderson, Holywood, GB;
Cesar Oswaldo Navarro-paredes, Newtownabbey, GB;
Rebecca Dimaio, Belfast, GB;
John McCune Anderson, Holywood, GB;
Cesar Oswaldo Navarro-Paredes, Newtownabbey, GB;
Rebecca DiMaio, Belfast, GB;
Heartsine Technologies Limited, Belfast Antrim, GB;
Abstract
An apparatus for indicating cardiac output comprises means for monitoring a patient's transthoracic impedance and generating a corresponding impedance signal, and signal processing means for (a) deriving a signal Swhich is a measure of the average amplitude of the impedance signal, (b) filtering the impedance signal at a plurality of different wavelengths within a predetermined frequency band, (c) for each filter deriving a signal Swhich is a measure of the average amplitude of the respective filter output, (d) calculating the ratio of the maximum one of the signals Sderived from step (c) to the signal Sderived from step (a), and (e) using the ratio from step (d) in a decision tree to provide a signal indicating cardiac output or not.