METHOD AND SYSTEM FOR MAPPING AND ANALYZING CARDIAC ELECTRICAL ACTIVITY

摘要

A multiple-point basket-type or crown-shaped catheter device provides simultaneously mapping over a three-dimensional (3D) region of a subject, such as, one or more chambers of a subject's heart. The catheter device may include a series of splines each having a wave-like profile formed of a periodic series of peaks and troughs, with electrodes located at the peaks and troughs for mapping purposes.

主权项

1. A catheter comprising:
an housing providing a sheath to an extendable catheter within the housing; and the extendible catheter comprising a plurality of splines extendable within the housing when the catheter is in a non-deployed state, the plurality of splines collectively extending through an opening in the housing and into a deployed state where the splines erect into a generally three dimensional (3D) shaped catheter head, wherein each of the plurality of splines comprises non-conducting regions, and wherein each of the plurality of splines further comprises electrodes distributed across the respective spline to collect electrical activity signal data across the spline, such that in the deployed state the catheter comprises electrodes positioned for collecting electrical activity signal data over a volumetric space within a target chamber.