I experienced this somewhat when consulting for a medical device startup. They'd developed a modular system supporting Laparoscopic procedures, reducing hands during surgery, which equated to significant safety increases as well as cost reductions. However, their big issue continues to be navigating the procurement process at hospitals, which is akin to requiring a full time lobbyist per hospital for the duration of…
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.