The most common issue surrounding woodworking injuries is guarding. Almost every type of woodworking equipment must have a guard of some kind. The problem is that a lot of them are simply not effective. If a guard is cumbersome, operators commonly remove them. Other guards do not effectively cover the point of operation.
Some guards are excellent in protecting the user.
The difference is usually in the product design. A well designed guard can do that very effectively. Ryan Engineering is working on improved designs for woodworking guards and fixtures.