Donald G Hopper

US Patent:

8019418, Sep 13, 2011

Filed:

Jul 22, 2009

Appl. No.:

12/507414

Inventors:

Weimin Sun - Thousand Oaks CA, US
Bruce R. Jones - Hopkins MN, US
Douglas J. Lang - Arden Hills MN, US
Donald L. Hopper - Maple Grove MN, US

Assignee:

Cardiac Pacemakers, Inc. - St. Paul MN

International Classification:

A61N 1/18

US Classification:

607 19

Abstract:

A system and method for automatically adjusting the operating parameters of a rate-adaptive cardiac pacemaker. In accordance with the method, maximum exertion levels attained by the patient are measured at periodic intervals and stored. The stored maximum exertion levels may then be used to update a long-term maximal exertion level, and the slope of the rate-response curve is adjusted to map the updated long-term maximal exertion level to a maximum allowable pacing rate. The stored maximum exertion levels may also be used to update a sensor target rate which is used to adjust the slope of the rate response curve.

US Patent:

8494632, Jul 23, 2013

Filed:

Sep 12, 2011

Appl. No.:

13/230563

Inventors:

Weimin Sun - Thousand Oaks CA, US
Bruce R. Jones - Hopkins MN, US
Douglas J. Lang - Arden Hills MN, US
Donald L. Hopper - Maple Grove MN, US

Assignee:

Cardiac Pacemakers, Inc. - St. Paul MN

International Classification:

A61N 1/18

US Classification:

607 19

Abstract:

A system and method for automatically adjusting the operating parameters of a rate-adaptive cardiac pacemaker. In accordance with the method, maximum exertion levels attained by the patient are measured at periodic intervals and stored. The stored maximum exertion levels may then be used to update a long-term maximal exertion level, and the slope of the rate-response curve is adjusted to map the updated long-term maximal exertion level to a maximum allowable pacing rate. The stored maximum exertion levels may also be used to update a sensor target rate which is used to adjust the slope of the rate response curve.