Skip to main content

Chronic Total Occlusion (CTO) System

Featuring the CROSSBOSS™ Catheter & STINGRAY™ LP System


(Facilitated Antegrade Steering Technique in Chronic Total Occlusions)

Study Objective

To demonstrate the satety and efficacy of the CROSSBOSS and STINGRAY Coronary CTO Crossing and Re-Entry devices to recanalize coronary CTOs in comparison to historical controls.

  • Multi-center, non-randomized US IDE study
  • 147 patients in 16 centers

Safe and Effective

Use of the CROSSBOSS and STINGRAY Crossing and Re-Entry devices result in a high technical success, 77%, without increasing complications.1

Reduced Procedure Time

Procedural success was improved with a 28.1% reduction in mean procedure time (minutes) as well as a reduction in fluoroscopy time.1

Primary Endpoints
Technical Success: CROSSBOSS / STINGRAY device facilitation of guidewire placement in true lumen distal to CTO
Secondary Endpoint

Principal Investigators

Patrick Whitlow MD, William Lombardi MD, Michael Wyman MD, Craig Thompson MD

Cleveland Clinic, PeaceHealth Medical Center/St Joseph Hospital, Torrance Memorial Medical Center, Yale University School of Medicine

Master the Complex - For Complete Revascularization