Expandable basket assemblies with linear spine patterns for improved tissue contact and methods for making thereof

An expandable basket assembly for a medical probe, comprising:

• a single unitary structure comprising a biocompatible material defining:
• a central spine intersection, wherein the central spine intersection is spiral-shaped, and a plurality of spines converging at the central spine intersection.

An expandable basket assembly for a medical probe, comprising:

• a single unitary structure comprising a biocompatible material defining:
• a central spine intersection positioned on a longitudinal axis of the expandable basket assembly at a distal end thereof, and a plurality of spines converging at the central spine intersection, each spine of the plurality of spines defining:
• a first portion proximate the distal end of the expandable basket assembly, a second portion proximate the first portion, and a third portion proximate the second portion, the third portion being wider than the first portion.