I can only answer for myself. As I already wrote I not specialist in medicine and I at all fear different medical procedures. Therefore, there can be no question about the theft of your technology even if I have something to see. To invest or not here everyone has to decide for himself.
I think the main thing here is not to invest, or not, but to invest for what purpose, in such a project you cannot pursue the goal of only making money, here you need to think that this is a project designed to help people, the noble goal of the project.
Everyone should help people to the best of their abilities. But still the project is positioned as an investment opportunity and promises income in the future. Therefore, you need to be realistic and decide for yourself the expediency of these investments.