The Boston Scientific MACH1 KR4H 7F Coronary Guiding Catheter (REF H749343576490) is a single-use percutaneous coronary intervention (PCI) guiding catheter engineered to deliver predictable engagement, optimized backup support, and consistent torque response during diagnostic and interventional coronary procedures. The KR4H curve is part of the MACH1 family designed to facilitate selective cannulation of the coronary ostia and provide a stable platform for the delivery of interventional devices.

Key Features
Single-piece, full-length braided shaft construction designed for 1:1 torque transmission and kink resistance.
Large lumen 7F (2.33 mm outer diameter nominal) profile to accommodate a broad range of interventional devices.
KR4H preformed curve geometry intended for coronary ostial engagement with enhanced backup support.
Atraumatic soft tip designed to reduce the risk of vessel trauma during cannulation.
Hydrophilic-compatible outer surface for smooth navigation through the vasculature.
Radiopaque tip marker for fluoroscopic visualization.
Sterile, single-use packaging.

Clinical Applications
Selective cannulation of native coronary arteries during diagnostic angiography and percutaneous coronary intervention.
Delivery and exchange of interventional devices including balloon catheters, coronary stents, guidewires, and atherectomy systems.
Cases requiring enhanced backup support such as complex lesions, calcified vessels, or chronic total occlusion (CTO) interventions where curve-specific support is indicated by the operator.
Procedures performed via femoral access where 7F sheath compatibility is appropriate.

Product Information
Brand: Boston Scientific
Product Line: MACH1
Curve: KR4H
French Size: 7F
Category: Coronary Guiding Catheter
REF / UPN: H749343576490
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