The Boston Scientific MACH1 CLS4.5 6F Coronary Guiding Catheter (REF H749343565760) is a single-use coronary guiding catheter designed to deliver stable backup support, predictable torque transmission and a smooth inner lumen for device delivery during percutaneous coronary procedures. The CLS (Contralateral Left Support) 4.5 curve is intended for left coronary cannulation where additional passive backup is desired.

Key Features
Proprietary MACH1 shaft construction engineered for 1:1 torque response and kink resistance.
CLS 4.5 curve geometry intended to provide passive backup support against the contralateral aortic wall.
6F outer diameter compatible with radial and femoral access workflows.
Large, polished inner lumen designed to facilitate smooth delivery of interventional devices.
Atraumatic soft tip designed to reduce the risk of vessel trauma during engagement.
Hydrophilic or lubricious outer coating as specified by the manufacturer for the MACH1 family.

Clinical Applications
Introduction and support of interventional devices into the coronary vasculature.
Selective cannulation of the left coronary ostium where contralateral backup support is preferred.
Use in diagnostic and therapeutic percutaneous coronary procedures performed by trained interventional clinicians.

Product Information
Brand: Boston Scientific
Product Line: MACH1
Curve: CLS 4.5 (Contralateral Left Support)
French Size: 6F
Category: Coronary Guiding Catheter
REF / UPN: H749343565760
Usable Length: Not specified in the located sources
Sterilization: Not specified in the located sources
Single Use: Not specified in the located sources
Regulatory Status: Refer to official Boston Scientific labeling and IFU for the destination market.