Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1996-12-18
1998-09-29
Kamm, William E.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
607 18, 607 17, A61M 136
Patent
active
058140875
ABSTRACT:
A rate responsive pacemaker is provided having the capability of automatically adjusting the lower rate limit (LRL) for sleep, or nighttime. The pacemaker has a temperature sensor for determining patient blood temperature, and processes patient blood temperature data to obtain an average daily low value of nighttime blood temperature. The pacemaker monitors blood temperature to determine a drop below a threshold which is coupled to the average daily low value, as well as when the rate of temperature change exceeds a predetermined limit, these two coincident conditions suggesting onset of nighttime and/or sleep. Lower rate limit is decremented, preferably by a predetermined amount at onset of nighttime, and is automatically incremented when patient blood temperature and/or time of day indicate the end of nighttime.
REFERENCES:
patent: 3867950 (1975-02-01), Fischell
patent: 4436092 (1984-03-01), Cook et al.
patent: 4543954 (1985-10-01), Cook et al.
patent: 4719920 (1988-01-01), Alt et al.
patent: 4803987 (1989-02-01), Calfee et al.
patent: 4905697 (1990-03-01), Heggs et al.
patent: 4945909 (1990-08-01), Fearnot et al.
patent: 4995390 (1991-02-01), Cook et al.
patent: 5005574 (1991-04-01), Fearnot et al.
patent: 5029582 (1991-07-01), Lekholm
patent: 5336244 (1994-08-01), Weijand
patent: 5376106 (1994-12-01), Stahmann et al.
patent: 5476483 (1995-12-01), Bornzin et al.
patent: 5645576 (1997-07-01), Limousin et al.
Case Studies on the Effect of Exercise and Hot Water Submersion on Intracardiac Temperature and the Performance of a Pacemaker Which Varies Pacing Rate Based on Temperature (Neal E. Fearnot, Ph.D., Osamu Kitoh, M.D., Tamotsu Fujita, M.D., Hiroshi Okamura, M.D., Heidi J. Smith, Ph.D., Mark Calderini)-Japan Heart J. 30(3):353-63. May 1989.
Overnight Heart Rate and Cardiac Function in Patients with Dual Chamber Pacemakers (Paul H. Chew, David E. Bush, Bernard T. Engel, Mark I. Talan and R. Tracy Abell)--PACE, vol. 19(5) May 1996.
Evaluation of Rate-Responsive Pacemakers by Transesophageal Holter Monitoring of Spontaneous Atrial rate (Maria Grazia Bongiorni, Ezio Soldati, Luca Paperini, Andrea Pozzolini, Dianora Levorato, Guiseppe Arena, Paolo Pistelli, Gianluga Quirino, Andrea Biagini, and Carlo Contini)--PACE, vol. 13 (12) Dec. 1990, Part II.
Jaro Michael J.
Kamm William E.
Layno Carl H.
Medtronic Inc.
Patton Harold
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