This NR May Be Even Bigger Than We Think The CEO of DME Authority wrote this article in 2018. He seems to have a very above average interest in DVTs and would seem to have been looking for a device exactly like Venowave for the last couple of years. After reading this it may be a little clearer as to why a company would accept guaranteeing $10 million minimum in annual purchases starting with an order for 5000 Venowave kits.
https://www.linkedin.cn/pulse/9-truths-dvt-prevention-providers-must-consider-best-outcomes-gosse?trk=public_profile_article_view
As an aside, published on the CDC website in the US there are as many as 900,000 DVTs in the US annually. Of those up to 100,000 die. Erick Gosse refers to it as "an epidemic" in his article.