The Boston Scientific MACH1 JL3.5 ST SH 8F Coronary Guiding Catheter (REF H749343586790) is a single-use percutaneous coronary intervention (PCI) guiding catheter engineered for predictable backup support, smooth device tracking and consistent torque response during diagnostic and interventional coronary procedures. The MACH1 platform is designed to deliver enhanced lumen-to-outer-diameter ratio for compatibility with a wide range of interventional devices.

Key Features
- Curve: Judkins Left 3.5 (JL3.5) for left coronary ostium engagement
- Tip configuration: ST (Short Tip) with SH (Short/standard) shaft option
- French size: 8F outer diameter for high-flow contrast delivery and complex device support
- Construction: Multi-layer braided shaft engineered for 1:1 torque transmission
- Lumen: Optimized inner lumen designed for compatibility with interventional accessories
- Atraumatic soft tip: Designed to reduce ostial trauma during engagement
- Lubricious coating: Designed to facilitate smooth navigation through the vasculature

Clinical Applications
- Selective angiography and guiding support for left coronary artery interventions
- Delivery and exchange of interventional devices including balloons, stents and adjunctive PCI tools
- Procedures requiring 8F access for complex lesion treatment, bifurcation work or simultaneous device delivery
- Cases where standard backup support at the left coronary ostium is preferred

Product Information
- Brand: Boston Scientific
- Product line: MACH1
- Category: Coronary Guiding Catheter
- Curve: JL3.5 (Judkins Left 3.5)
- Tip: ST (Short Tip)
- Shaft: SH
- French size: 8F
- Working length: Not specified in the located sources
- Sterility: Single-use, sterile (refer to manufacturer IFU)
- REF/UPN: H749343586790
- Regulatory and clinical use: Refer to the official Boston Scientific Instructions for Use and local regulatory clearances in the country of intended use