The notion that only people who are currently in the medtech industry are capable of founding successful companies is simply not true. That’s not to say it’s not challenging, but as the Biodesign program emphasizes, innovation in medtech comes from thinking outside the box. By observing the problems in healthcare system as an outsider, even if you are a doctor, there is an opportunity to realize solutions that can have a drastically positive impact while considering the market, regulatory and reimbursement. Unfortunately our current healthcare systems is extremely costly and inefficient in delivering quality care. As you mentioned, there are biases towards status quo that makes it hard for many inside the system to imagine things being done differently.
You mentioned that “I can think of almost no reason why it would be a net improvement to the world if people were able to have their own personal breast ultrasound machine to monitor breast health.” In a world where 1 in 8 women will be diagnosed with invasive breast cancer in their lifetime, making low-cost breast cancer screening accessible to every woman regardless of their age, insurance coverage, access to healthcare, etc will be a great net improvement. There is published literature that demonstrates that by adding ultrasound screening, the number of breast cancer detected is doubled, and furthermore the number of cancer detected at an early stage is increased 3 fold. Not only this early detection results in saving lives, but it also results in significant savings for the healthcare system.
I applaud YC's efforts in giving an opportunity to medtech companies to think bigger, move faster and I am confident there will be even greater medtech companies coming out of YC every batch to move medtech industry in the right direction.