The Boston Scientific MACH1 KR3H SH 6F Coronary Guiding Catheter (REF H749343566510) is a single-use interventional cardiology catheter designed to facilitate the introduction and exchange of diagnostic and therapeutic devices into the coronary vasculature. The MACH1 platform is engineered to deliver consistent backup support, a stable coaxial position, and a smooth inner lumen for fluent device tracking during percutaneous coronary procedures.

Key Features
- One-piece full-length braid construction supporting torque transmission and kink resistance.
- SH (Short) tip configuration intended to optimize cannulation in selected anatomies.
- KR3H curve from the MACH1 shape family for predictable engagement and backup support.
- 6F outer diameter compatible with standard interventional workflows.
- Large inner lumen designed to accommodate contemporary PCI devices.
- Atraumatic soft tip intended to reduce vessel trauma at the ostium.
- Hydrophilic-friendly surface for smooth advancement through the introducer and arterial pathway.
- Sterile, single-use packaging.

Clinical Applications
- Introduction and support of guidewires, balloon catheters, stents, and adjunctive PCI devices.
- Selective engagement of coronary ostia during diagnostic and interventional cardiology procedures.
- Procedures requiring stable guide support with a 6F access strategy.
- Use cases where the operator selects a short-tip, KR3H-shaped guide for anatomy-specific cannulation.

Product Information
- Brand: Boston Scientific
- Product Line: MACH1 Coronary Guiding Catheter
- Curve: KR3H
- Tip: SH (Short)
- French Size: 6F
- REF/UPN: H749343566510
- Category: Guiding Catheter
- Sterility: Sterile, single-use device
- Working Length: Not specified in the located sources
- Inner Diameter: Not specified in the located sources
- Packaging Quantity: Not specified in the located sources
- Regulatory Status: Refer to the manufacturer Instructions for Use and local regulatory documentation.