I quickly loose an appetite to do anything in medical space due to hardcore regulation. I applied couple times at medical equipment manufacturers and I was always told, that I’ll spend at least 2 days every week documenting things for examination later. I don’t think, hackers love documentation.

Thanks for that. Looking at their site their hardware appears to be extremely basic and would benefit from some additional assistance. It looks like a fun project; I've always wanted to build an ultrasound. Think I'll take a crack at making something cheap to manufacture.

Of course, getting something like that certified simply sounds awful and unappealing. If it were possible to get a medical device past the FDA for noncritical use it wouldn't be so bad. But if I were to do this for sale, and use in medical environments, the effort spent on satisfying the regulatory beast is simply unappealing for something I'd be doing for free.

There is a thriving medical hacker community for things like the artificial pancreas for diabetics. I think they spend a lot of time working around security features meant to defeat them.

Hospitals are extremely risk adverse, any billing/invoicing is quite complicated and getting pre-certified hardware you don't have to certify yourself is expensive and challenging.