The Boston Scientific MACH1 CLS3.5 8F Coronary Guiding Catheter (REF H749343585740) is a single-use percutaneous guiding catheter engineered to deliver interventional devices into the coronary vasculature. The MACH1 platform is designed to combine backup support, torque response and lumen integrity to facilitate selective engagement of the coronary ostia during percutaneous coronary intervention (PCI).

Key Features
- Curve: CLS 3.5 (Left Coronary Support, 3.5 cm) shape intended for backup support during left coronary interventions.
- Outer diameter: 8F sizing to accommodate larger interventional devices and bifurcation strategies.
- MACH1 construction: Multi-layer shaft designed for torque transmission, kink resistance and shape retention.
- Lumen: Lubricious inner lining intended to support smooth device tracking and contrast delivery.
- Atraumatic soft tip: Designed to reduce vessel trauma during ostial engagement.
- Usable length: Not specified in the located sources.
- Sterilization / single use: Supplied sterile for single-patient use.

Clinical Applications
- Selective cannulation of the left coronary artery during diagnostic and interventional cardiology procedures.
- Delivery and exchange of guidewires, balloon catheters, stents and other interventional devices.
- Procedures requiring enhanced backup support, including complex PCI and bifurcation cases where 8F access is appropriate.

Product Information
- Brand: Boston Scientific
- Product line: MACH1
- Curve: CLS 3.5
- French size: 8F
- Category: Coronary Guiding Catheter
- REF / UPN: H749343585740
- Packaging: Not specified in the located sources.
- Regulatory status: Refer to the manufacturer Instructions for Use (IFU) and local regulatory labeling for approved indications and contraindications.