Surgery – Truss – Pad
Patent
1991-02-13
1992-11-10
Howell, Kyle L.
Surgery
Truss
Pad
128419D, A61N 100
Patent
active
051615274
ABSTRACT:
A rate-responsive dual-chamber antitachycardia pacer and pacing method which automatically diagnoses and supports a patient's hemodynamic status by measuring metabolic demand and sensing intracardiac electrograms to determine whether the heart is beating normally or under conditions of bradycardia, tachycardia, or fibrillation. The pacer supports the patient's metabolic demand by electrically stimulating the heart at a pacing rate driven either by the heart's sinus node or, alternatively, by the patient's metabolic demand (a metabolic demand indicator), as determined by a sensor. The pacer automatically selects between the indicated rates to determine the best pacing rate for appropriately satisfying metabolic demand at all times. The natural rate, driven by the sinus node, takes precedence over the metabolic indicator rate, provided the natural rate meets a standard determined by the metabolic demand indicator rate. The pacer detects abnormal rhythms of tachycardia and fibrillation, classifies these rhythms, and initiates an appropriate therapy accordingly, by analyzing the metabolic demand indicator and the sinus rate.
REFERENCES:
patent: 3857398 (1974-12-01), Rubin
patent: 4202340 (1980-05-01), Langer et al.
patent: 4291699 (1981-09-01), Geddes et al.
patent: 4429697 (1984-02-01), Nappholz et al.
patent: 4475551 (1984-10-01), Langer et al.
patent: 4692719 (1987-09-01), Whigham
patent: 4766901 (1988-08-01), Callaghan
patent: 4869252 (1989-09-01), Gilli
patent: 4901725 (1990-02-01), Nappholz
patent: 4940054 (1990-07-01), Grevis et al.
patent: 4998974 (1991-03-01), Aker
patent: 5007422 (1991-04-01), Pless et al.
patent: 5024222 (1991-06-01), Thacker
patent: 5027816 (1991-07-01), Cohen
patent: 47052253 (1987-10-01), Nappholz et al.
Fisher, et al., "Termination of Ventricular Tachycardia With Burst or Rapid Ventricular Pacing," American Journal of Cardiology, vol. 41 (Jan. 1976) p. 96.
J. D. Fisher et al., "Termination of Ventricular Tachycardia with Bursts of Rapid Ventricular Pacing," American Journal of Cardiology, vol. 41 (Jan. 1978), pp. 94-102.
Koestner Ken
Nappholz Tibor A.
Howell Kyle L.
Manuel George
Telectronics Pacing Systems Inc.
LandOfFree
Apparatus and method for detecting abnormal cardiac rhythms in d does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for detecting abnormal cardiac rhythms in d, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for detecting abnormal cardiac rhythms in d will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2287425