The Boston Scientific MACH1 RBL4.5 6F Coronary Guiding Catheter (REF H749343567370) is a single-use guiding catheter engineered to deliver predictable backup support, smooth device tracking, and stable coaxial engagement during diagnostic and interventional coronary procedures. The MACH1 platform is recognized for its full-length braided shaft construction, which is intended to support 1:1 torque transmission and resistance to kinking across a wide range of interventional anatomies.

Key Features
- Curve configuration: RBL4.5 (Renal Backup Left, 4.5 cm) shape, intended for backup support engagement
- French size: 6F outer diameter for radial or femoral access workflows
- Full-length braided shaft designed for consistent torque response and pushability
- Soft atraumatic distal tip intended to reduce vessel trauma during ostial engagement
- Large inner lumen to support delivery of contemporary interventional devices
- Lubricious inner coating intended to facilitate smooth device passage
- Single-use, sterile packaging configuration

Clinical Applications
- Percutaneous coronary intervention (PCI) requiring enhanced backup support
- Delivery of guidewires, balloon catheters, stents, and other interventional devices to target coronary anatomy
- Cases where a Renal Backup Left curve geometry is preferred by the operator for coaxial alignment and support
- Use in cardiac catheterization laboratories by trained interventional cardiologists

Product Information
- Brand: Boston Scientific
- Product line: MACH1
- Curve: RBL4.5
- French size: 6F
- Category: Coronary Guiding Catheter
- REF / UPN: H749343567370
- Working length: Not specified in the located sources
- Packaging quantity: Not specified in the located sources
- Sterility: Sterile, single-use device
- Regulatory status: Refer to the official manufacturer Instructions for Use (IFU) and local regulatory documentation prior to procurement and clinical use