Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
2005-06-07
2005-06-07
Schaetzle, Kennedy (Department: 3762)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
Reexamination Certificate
active
06904316
ABSTRACT:
A cardiac rhythm management system provides both a safe maximum pacing rate limit and a physiological maximum pacing rate limit. The present subject matter provides a solution to problems associated with the use of a single maximum tracking rate (MTR). In one embodiment, the present subject matter utilizes two MTRs, where the first is a normal MTR and the second is a hysteresis MTR. In one embodiment, the hysteresis MTR is set higher than the normal MTR. The hysteresis MTR functions as a maximum pacing rate limit while tracking an atrial rate until the atrial rate exceeds the hysteresis MTR limit. When the atrial rate exceeds the hysteresis MTR limit, the maximum pacing rate limit is set to the normal MTR. Once the atrial rate falls below a predetermined threshold, the maximum pacing rate limit is set to the hysteresis MTR. The predetermined threshold may be set to the normal MTR, the hysteresis MTR, or other rates. In one embodiment, changing the maximum pacing rate limit in this fashion allows for uninterrupted pacing treatment for patients, such as congestive heart failure (CHF) patients, who may display fast but physiologically normal heart rates and need cardiac resynchronization therapy (CRT) at such fast heart rates. Such a pacing treatment provides for a more rapid and natural maximum pacing rate limit for the patient, while still protecting the patient from being paced at abnormally high rates.
REFERENCES:
patent: 4230120 (1980-10-01), McDonald
patent: 4233985 (1980-11-01), Hartlaub et al.
patent: 4236522 (1980-12-01), McDonald et al.
patent: 4241736 (1980-12-01), Rossing et al.
patent: 4250883 (1981-02-01), Thompson
patent: 4253466 (1981-03-01), Hartlaub et al.
patent: 4257423 (1981-03-01), McDonald et al.
patent: 4263915 (1981-04-01), McDonald et al.
patent: 4267843 (1981-05-01), McDonald et al.
patent: 4273132 (1981-06-01), Hartlaub et al.
patent: 4273133 (1981-06-01), Hartlaub et al.
patent: 4275738 (1981-06-01), McDonald et al.
patent: 4276883 (1981-07-01), McDonald et al.
patent: 4344437 (1982-08-01), Markowitz
patent: 4401120 (1983-08-01), Hartlaub et al.
patent: 4515159 (1985-05-01), McDonald et al.
patent: 4550370 (1985-10-01), Baker
patent: 4945909 (1990-08-01), Fearnot et al.
patent: 5144949 (1992-09-01), Olson
patent: 5247930 (1993-09-01), Begemann et al.
patent: 5303702 (1994-04-01), Bonnet et al.
patent: 5342405 (1994-08-01), Duncan
patent: 5391189 (1995-02-01), van Krieken et al.
patent: 5531771 (1996-07-01), van der Veen
patent: 5674257 (1997-10-01), Stroebel et al.
patent: 5733312 (1998-03-01), Schloss et al.
patent: 5968081 (1999-10-01), Levine
patent: 5983138 (1999-11-01), Kramer
patent: 5999854 (1999-12-01), Deno
patent: 6119040 (2000-09-01), Chirife
patent: 6216035 (2001-04-01), Stahl et al.
patent: 6311088 (2001-10-01), Betzold et al.
patent: 6636766 (2003-10-01), Bornzin et al.
patent: 2002/0087198 (2002-07-01), Kramer et al.
patent: 0726082 (1996-08-01), None
Cardiac Pacemakers Inc.
Mullen Kristen
Schaetzle Kennedy
Schwegman Lundberg Woessner & Kluth P.A.
LandOfFree
Cardiac rhythm management system with maximum tracking rate... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cardiac rhythm management system with maximum tracking rate..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cardiac rhythm management system with maximum tracking rate... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3491389