CDRH leads the way with the most products approved as this list notes of Breakthrough Device Marketing Authorizations. These guidances are related to the Breakthrough Devices Program:
Requests for Feedback and Meetings for Medical Device Submissions: The Q-Submission Program
Final Guidance: Breakthrough Devices Program
Factors to Consider When Making Benefit-Risk Determinations in Medical Device Premarket Approval and De Novo Classifications (Benefit Risk Final Guidance)