This is a prospective, non-randomized, multi-center, open label Phase 1 study to assess the safety, pharmacokinetics (PK), and preliminary efficacy trends of applying NVS Therapy to de novo lesions in the superficial femoral artery (SFA) and proximal popliteal artery (PPA) during percutaneous transluminal angioplasty (PTA) in patients with life-style limiting claudication due to obstructive SFA and proximal popliteal artery atherosclerosis. Each investigator will receive supervised training for each procedure.