You're selling to the wrong party. Don't sell it to the hospitals, sell it to the insurance companies.
Hospitals will be thinking
1. "will insurance claims be rejected for non-standard treatment?"
2. "If something goes wrong with my malpractice insurance cover it?"
Even if everything goes correctly, and procedures are better/faster/cheaper the insurance companies will just lower the amount they pay. The hospital doesn't have a lot to gain here.
Conversely if an insurance company hears about a new better/faster/cheaper treatment suddenly that's they only thing they will pay for and the company selling that treament makes a mint, with hospitals knocking down their door.
I'm not so sure about the insurance companies. I am a pharmacist and I see insurance companies insist on paying for expensive things and declining to pay for cheap things all the time. For example, they won't pay for cheap Relion brand syringes, but they will pay for BD syringes (BD is the bad guy in the linked article), which cost much more. I'm not sure about the reasoning behind this, but I'll bet it's sordid and corrupt.
Hospitals will be thinking
1. "will insurance claims be rejected for non-standard treatment?"
2. "If something goes wrong with my malpractice insurance cover it?"
Even if everything goes correctly, and procedures are better/faster/cheaper the insurance companies will just lower the amount they pay. The hospital doesn't have a lot to gain here.
Conversely if an insurance company hears about a new better/faster/cheaper treatment suddenly that's they only thing they will pay for and the company selling that treament makes a mint, with hospitals knocking down their door.