Multiple electrode support structures having optimal bio-mechani

Details Multiple electrode support structures having optimal bio-mechani Multiple electrode support structures having optimal bio-mechani

1995-11-13

1999-05-18

Peffley, Michael

Surgery

Instruments

Electrical application

607122, 600374, A61B17/36

Patent

active

059046805

ABSTRACT:
An electrode support structure comprises a distal hub and a proximal base aligned along a major axis with the distal hub. An array of generally flexible spline elements extend between the hub and the base. The spline elements each have an elongated axis that, at the base, extends generally parallel to the major axis and, at the hub, extends at an angle, measured relative to the major axis, of between 45.degree. and 110.degree.. The spline elements collectively define a distal surface lying within an envelope that approximates the curvature of endocardial tissue and within which envelope the distal hub lies. According to this aspect of the invention, the distal surface, when contacting endocardial tissue, increases in surface area in response to force applied generally along the major axis to mediate tissue pressure.

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