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:
Jun. 05, 2001
Filed:
Aug. 18, 1999
Brian M. Mann, Edgartown, MA (US);
Melinda Endaya, Granada Hills, CA (US);
Paul A. Levine, Newhall, CA (US);
Pacesetter, Inc., Sylmar, CA (US);
Abstract
A pacemaker programmer and diagnostic system retrieves information stored within a pacemaker and analyzes the retrieved data in real time. The stored information can be retrieved by means of a telemetry communication link. The pacemaker automatically lengthens a post-ventricular atrial refractory period (PVARP). The pacemaker determines atrial capture by generating atrial stimulation pulses while maintaining the ventricular stimulation pulse amplitude at a level known to ensure ventricular capture, and by detecting loss of atrial capture. In response to loss of atrial capture, a processor automatically records the atrial capture threshold, and restores the PVARP and the atrial pulse amplitude to their pre-test values. A pulse generator delivers a backup atrial stimulation pulse concurrently with a ventricular stimulation pulse, and the processor automatically initiates a premature ventricular contraction (PVC) response to reduce the possibility of a retrograde P-wave initiating a pacemaker-mediated tachycardia (PMT).