What exactly is the medical law for?

In order to deal with medical disputes, many hospitals have hired external lawyers as their perennial legal advisers. However, some hospitals do not invite people from outside, but let the staff who have obtained the lawyer qualification certificate in the hospital serve as the legal adviser of the hospital. For example, the chief of the medical department of a hospital has studied law for many years, and after passing the unified judicial examination, he also serves as a hospital legal consultant, responsible for medical quality and the handling of medical disputes. When there is a dispute case, he can represent the hospital in litigation with patients.