I see it's being prescribed, and to a small-ish number of people (400), so perhaps it's in a trial phase? FDA has 5 phases for medical device development (googl

I see it's being prescribed, and to a small-ish number of people (400), so perhaps it's in a trial phase? FDA has 5 phases for medical device development (googled below): Step 1: Device Discovery and Concept. Step 2: Preclinical Research-Prototype. Step 3: Pathway to Approval. Step 4: FDA Device Review. Step 5: FDA Post-Market Device Safety Monitoring. They could be on step 3, where they do clinical trials. Maybe working with the VA, or perhaps they advertised at VA hospitals or veteran's groups. I would imagine that's the easiest group to find and recruit into your trial.