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:
Sep. 23, 2003
Filed:
Aug. 24, 2001
Applicant:
Inventors:
Mark W. Kroll, Simi Valley, CA (US);
Chris Sorensen, Valencia, CA (US);
Gene A. Bornzin, Simi Valley, CA (US);
Assignee:
Pacesetter, Inc., Sylmar, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61N 1/362 ;
U.S. Cl.
CPC ...
A61N 1/362 ;
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 may be further equipped with a magnetic field sensor to sense the earth's magnetic field as a way to obtain a true vertical orientation, against which the accelerometer-based sensor can be calibrated.