The Boston Scientific MACH1 FR3.5 SH 6F Coronary Guiding Catheter (REF H74934356470) is a single-use guiding catheter designed to facilitate the introduction and support of interventional devices during percutaneous coronary procedures. The MACH1 family is engineered to deliver predictable backup support, smooth device tracking, and stable coaxial alignment with the coronary ostium.

Key Features
- Curve: FR3.5 SH (Short Tip) Femoral Right configuration for selective right coronary engagement
- French size: 6F outer diameter for standard radial or femoral access
- Construction: Multi-layer shaft with stainless steel braid for torque transmission and kink resistance
- Inner lumen: Lubricious PTFE liner intended to support smooth passage of interventional devices
- Atraumatic soft tip: Designed to reduce vessel trauma during ostial engagement
- Radiopaque marker: For fluoroscopic visualization
- Not specified in the located sources: exact usable length and inner diameter dimensions

Clinical Applications
- Selective cannulation of the right coronary artery in patients with anatomy suited to a short-tip Femoral Right curve
- Delivery and exchange of guidewires, balloon catheters, stents, and other interventional accessories
- Diagnostic and interventional cardiac catheterization workflows
Clinical suitability and procedural use must be determined by a qualified physician in accordance with the manufacturer's Instructions for Use.

Product Information
- Brand: Boston Scientific
- Product line: MACH1
- Category: Coronary Guiding Catheter
- Curve: FR3.5 SH
- Size: 6F
- REF / UPN: H74934356470
- Packaging: Sterile, single-use
- Storage: Per manufacturer labeling
- Always refer to the official Boston Scientific Instructions for Use for complete specifications, warnings, and contraindications.