Method and apparatus for monitoring myocardial conduction...

Details Method and apparatus for monitoring myocardial conduction... Method and apparatus for monitoring myocardial conduction...

2005-08-16

2005-08-16

Layno, Carl (Department: 3762)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

C607S017000, C607S028000

Reexamination Certificate

active

06931281

ABSTRACT:
A cardiac stimulation device and method to measure a myocardial conduction time and to store its long-term running average. A multipolar lead is used to deliver a stimulation pulse from a tip electrode and detect the evoked response after it has propagated to a ring electrode. The time between the stimulation pulse and a detected feature of the evoked response is determined as the myocardial conduction time. A long-term average myocardial conduction time is calculated by averaging on the order of five hundred stimulated cardiac cycles, and a running average is stored in memory. Shifts in the myocardial conduction time may be used for monitoring disease progression or the long-term response to a treatment.

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Halliday, David & Resnick, Robert, Physics—Part I, Chapter “3-3: Average Velocity”, John Wiley & Sons, (c) 1977, pp. 31-32.

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