Ablation systems with reduced energy loss

Abstract

In some examples, a power routing circuit of an endovascular ablation system may include components with reduced forward voltage drops in a handle of a thermal ablation catheter. The handle may also include a reference temperature sensor used for closed-loop temperature control. In some examples, power routing circuit may include transistors such as metal-oxide-semiconductor field-effect transistors (MOSFETs). In some examples, transistors may be coupled in parallel with diodes in the power routing circuit. In some examples, the diodes may be Schottky diodes. The reduction in forward voltage drops may reduce heat dissipation of the power routing circuit, which may reduce heating of the reference temperature sensor. Power losses in the handle that lead to reduced power in the distal heating elements may be reduced.

Dependencies are inferred from the claim text.