Dual chamber rate responsive pacemaker with variable refractory

Details Dual chamber rate responsive pacemaker with variable refractory Dual chamber rate responsive pacemaker with variable refractory

1990-08-14

1992-07-14

Kamm, William E.

Surgery

Truss

Pad

A61N 1368

Patent

active

051293935

ABSTRACT:
An improved atrial synchronous, dual chamber pacemaker provided with a variable refractory period during which the pacemaker is not responsive to the sensed atrial contractions. The atrial refractory period is varied as a function of measured atrial and ventricular rates, and corresponds to a predetermined proportion of the lesser of the average interval separating the ventricular contractions and the average interval separating atrial contractions. The invention is particularly beneficial in the context of a VDD type pacemaker.

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