A 25mm Ross Aortic Retractor is a specialized surgical tool used during cardiac procedures, primarily the Ross procedure, to hold back the aorta to gain access to the heart and surrounding tissues. Its crest-shaped, atraumatic blade and ergonomic handle allow surgeons to manipulate the aorta safely, ensuring adequate exposure for complex operations like aortic valve replacement or repair. 

Ross Procedure:

The retractor's main function is to facilitate the Ross procedure, a complex cardiac surgery where a diseased aortic valve is replaced with the patient's own pulmonary valve (a pulmonary autograft).