Washington University in St. Louis

Endovascular procedures require controlled guidewire manipulation; however, manual torque devices often cause inconsistent rotation, slippage, and operator fatigue [1]. These limitations can lead to procedural delays and complications. Surgeon surveys and stakeholder interviews show clinical need for improved torque precision, reduced fatigue, and safer wire handling. There are over 1 million annual endovascular procedures; demand…

Understanding how alternating current (AC) signals propagate through soft tissue is essential for optimizing implantable neurostimulation systems. This study quantifies frequency- and depth-dependent attenuation of AC signals transmitted through ex vivo porcine skin using inductive volume coupling and an implanted Schottky diode circuit. Signals at 50 kHz, 500 kHz, and 1 MHz were delivered through…

Endovascular procedures require controlled guidewire manipulation; however, manual torque devices often cause inconsistent rotation, slippage, and operator fatigue [1]. These limitations can lead to procedural delays and complications. Surgeon surveys and stakeholder interviews show clinical need for improved torque precision, reduced fatigue, and safer wire handling. There are over 1 million annual endovascular procedures; demand…