Israel’s NovaPulse has developed a “virtual” stent that opens blocked arteries in the legs. The implant sits just under the skin on the leg; when the patient moves, they generate ultrasound waves that dilate the implant, allowing oxygenated blood to flow from the heart.

https://nocamels.com/2023/12/virtual-stent-uses-sound-waves-to-open-blocked-leg-arteries/

https://medxelerator.com/almeda-ventures-joins-medx-xelerator-and-israel-innovation-authority-in-vascular-medtech-startup-novapulse-investment/