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:
Dec. 02, 2003
Filed:
Aug. 24, 2001
Mark W. Kroll, Simi Valley, CA (US);
Chris Sorensen, Valencia, CA (US);
Gene A. Bornzin, Simi Valley, CA (US);
Pacesetter, Inc., Sylmar, CA (US);
Abstract
An implantable cardiac stimulation device is equipped with an accelerometer-based sensor to sense a patient's movement and produce a vertical acceleration component indicative of a patient's acceleration in a vertical direction. A vertical velocity component is computed from the vertical acceleration component. The device further includes a minute ventilation sensor to sense minute ventilation of the patient. Coupled to the various sensors is a processor that is programmed to determine a patient's position and activity status, such as whether the patient is ascending/descending stairs or is sitting up from a lying position, based on the vertical velocity and minute ventilation data. The patient's status dictates whether to administer cardiac pacing therapy to the patient and the kind of therapy to be applied.