Elongated trapezoidal electrodes of a basket catheter and methods of making the same

A method of constructing a medical probe, the method comprising:

• cutting a planar sheet of material to form a plurality of linear spines including a central spine intersection;
• cutting at least one cutout from the central spine intersection and extending along at least a portion of each of the plurality of linear spines;
• and
• for each of the plurality of linear spines:
• aligning the linear spine with at least one electrode, wherein each of the at least one electrode comprises two sections that define a lengthwise direction of an electrode body section that taper inward with respect to a central axis of the electrode,
• inserting the linear spine into a respective lumen of the at least one electrode, and
• fitting an end of the linear spine to a tubular shaft sized to traverse vasculature to form an expandable basket assembly that is movable from a collapsed configuration to a bowed configuration.

A method of constructing a medical probe, the method comprising:

• aligning a spine with at least one electrode, each of the at least one electrode comprises two sections that define a lengthwise direction of an electrode body section that taper inward with respect to a central axis of the electrode, a cross-sectional shape of the electrode comprises a substantial trapezoidal shape;
• inserting the spine into a lumen of the electrode;
• and
• fitting an end of the spine to a tubular shaft sized to traverse vasculature to form an expandable basket assembly that is movable from a collapsed configuration to a bowed configuration.