Depends on what you want to focus on. There are a shrinking amount of technical jobs where you don't really see patients and just build devices.

It's kinda a dying part of the field as there aren't many tech schools out there anymore and a lot of work is sent out to central fabrication companies.

The other route is the more popular and better paying route, becoming a certified prosthetist orthotist. It's it own graduate degree with about half of it being focused on anatomy and physiology and the other half focusing on fabrication and patient care. After your masters you would then do a two year residency at a clinic or in a hospital setting.