The Boston Scientific MACH1 FL4.5 ST 6F Coronary Guiding Catheter (REF H74934356300) is a single-use interventional catheter from the MACH1 family, designed to deliver consistent backup support, accurate tip placement and reliable torque transmission during percutaneous coronary procedures. The FL (Femoral Left) 4.5 curve and ST (Standard Tip) configuration are intended for selective engagement of the left coronary ostium via femoral access.

Key Features
- MACH1 construction engineered for one-to-one torque response and shape retention.
- 6F outer diameter compatible with standard introducer sheaths and a wide range of interventional devices.
- FL4.5 curve selected for left coronary access via the femoral approach.
- Standard Tip (ST) configuration for predictable ostial engagement.
- Lubricious inner lumen intended to facilitate device delivery and reduce friction.
- Radiopaque marker to support fluoroscopic visualization.
- Sterile, single-use packaging.

Clinical Applications
- Diagnostic and interventional cannulation of the left coronary artery via femoral access.
- Conduit for guidewires, balloon catheters, stents and other coronary interventional devices.
- Procedures requiring stable backup support with a Standard Tip profile.

Product Information
- Brand: Boston Scientific
- Product Line: MACH1 Coronary Guiding Catheter
- Curve: FL4.5 (Femoral Left 4.5)
- Tip: ST (Standard Tip)
- French Size: 6F
- REF / UPN: H74934356300
- Category: Guiding Catheter
- Usage: Single use, sterile
- Working Length: Not specified in the located sources
- Inner Lumen Diameter: Not specified in the located sources
- Packaging Quantity: Not specified in the located sources