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. 12, 2000
Filed:
Jun. 29, 1998
Applicant:
Inventor:
Raul Chirife, 1641 Acassuso, Buenos Aires, AR;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61N / ;
U.S. Cl.
CPC ...
607 18 ;
Abstract
Method and apparatus for automatically setting a variable upper rate limit for the pacing pulse signal provided by a rate adaptive implantable pacemaker which relies on a non-physiological sensor to determine the pacing needs of the patient. A physiological parameter of the patient's condition is sensed and used to determine an upper limit for the pacing rate otherwise called for based on the reading of the non-physiological sensor. In a disclosed embodiment, the ventricular preejection period is monitored as the physiological parameter, and the rate of change of this parameter is utilized to set the upper limit of the pacing pulse rate.