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, 2015
Filed:
Jun. 08, 2012
James Martin Weiland, Greensburg, PA (US);
Ronald Dean Fligge, Greensburg, PA (US);
Louis Welty Hiener, Iii, Pittsburgh, PA (US);
John Liston, Monroeville, PA (US);
James Martin Weiland, Greensburg, PA (US);
Ronald Dean Fligge, Greensburg, PA (US);
Louis Welty Hiener, III, Pittsburgh, PA (US);
John Liston, Monroeville, PA (US);
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
An physiological data acquisition apparatus includes three or more leads, at least one AC current source, a switching mechanism structured to selectively couple the current source to selected lead pairs to inject an AC current across the selected lead pairs which produces an AC voltage across the selected lead pair, and a processing device. The processing device is structured to (i) determine an impedance across the current selected lead pair based on the AC voltage, (ii) determine whether the impedance is less than a predetermined threshold, (iii) if the impedance is less than the predetermined impedance threshold cause the current selected lead pair to be used for generating physiological parameter data, and (iv) if the impedance is not less than the threshold cause the switching mechanism to couple the at least one AC current source to a new selected pair of the leads.