Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
2005-11-01
2005-11-01
Bockelman, Mark (Department: 3762)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
Reexamination Certificate
active
06961615
ABSTRACT:
A congestive heart failure (CHF) mortality risk metric is automatically generated using an implantable medical device and, if it exceeds a predetermined threshold, a warning signal is issued indicating a significant risk of mortality due to CHF, perhaps necessitating more aggressive medical therapy. The CHF mortality risk metric is calculated based on a combination of estimated ventilatory response values and the slope of heart rate reserve as a function of predicted heart rates. Ventilatory response is estimated based on detected values of actual heart rate, arterial oxygen saturation, right ventricular O2, stroke volume, tidal volume, and respiration rate. Heart rate reserve values are derived from the actual heart rate along with patient age and rest heart rate. The predicted heart rates, which represent the heart rates the patient would achieve if healthy, are derived from activity sensor signals. The CHF mortality risk metric is then calculated as a ratio of ventilatory response and the slope of the heart rate reserve. If the CHF mortality risk metric exceeds a critical threshold value, such as 90, the warning signal is generated. Also described herein are various techniques for estimating ventilatory response.
REFERENCES:
patent: 4712555 (1987-12-01), Thornander et al.
patent: 4788980 (1988-12-01), Mann et al.
patent: 4802481 (1989-02-01), Schroeppel
patent: 4809697 (1989-03-01), Causey, III et al.
patent: 4901725 (1990-02-01), Nappholz et al.
patent: 4940052 (1990-07-01), Mann et al.
patent: 4944298 (1990-07-01), Sholder
patent: 4944299 (1990-07-01), Silvian
patent: 4998535 (1991-03-01), Selker et al.
patent: 5267564 (1993-12-01), Barcel et al.
patent: 5300093 (1994-04-01), Koestner et al.
patent: 5466254 (1995-11-01), Helland
patent: 5518001 (1996-05-01), Snell
patent: 5573550 (1996-11-01), Zadeh et al.
patent: 5614246 (1997-03-01), Mund et al.
patent: 5685315 (1997-11-01), McClure et al.
patent: 5792197 (1998-08-01), Nappholz
patent: 5935081 (1999-08-01), Kadhiresan
patent: 5944745 (1999-08-01), Rueter
patent: 5964788 (1999-10-01), Greenhut
patent: 5974340 (1999-10-01), Kadhiresan
patent: 5980463 (1999-11-01), Brockway et al.
patent: 6021351 (2000-02-01), Kadhiresan et al.
patent: 6104949 (2000-08-01), Pitts Crick et al.
patent: 6135970 (2000-10-01), Kadhiresan et al.
patent: 6190324 (2001-02-01), Kieval et al.
patent: 6275734 (2001-08-01), McClure et al.
patent: 6336903 (2002-01-01), Bardy
patent: 6438408 (2002-08-01), Mulligan et al.
patent: 6454707 (2002-09-01), Casscells, III et al.
patent: 6459929 (2002-10-01), Hopper et al.
patent: 6645153 (2003-11-01), Kroll et al.
patent: WO 01/23040 (2001-04-01), None
Robbins, MD, et al., “Ventilatory and Heart Rate Responses to Exercise: Better Predictors of Heart Failure Mortality Than Peak Oxygen Consumption”, Circulation, pp.: 2411-2416 (Dec. 14, 1999).
Bradley Kerry
Kroll Mark W.
Bockelman Mark
Pacesetter Inc.
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