The Boston Scientific MACH1 KR3S 6F Coronary Guiding Catheter (REF H749343566540) is a single-use interventional catheter designed to provide reliable coronary ostial engagement and consistent back-up support during percutaneous coronary interventions. The MACH1 platform is engineered to deliver a balance of pushability, torque transmission and atraumatic tip performance for diagnostic and therapeutic cardiovascular workflows.

Key Features
Kimny-style KR3S curve geometry intended to facilitate coronary ostial cannulation and supportive positioning.
Compact 6F outer diameter profile compatible with standard transfemoral and, where clinically appropriate, transradial access workflows.
MACH1 braided shaft construction designed to provide 1:1 torque response and kink resistance.
Smooth inner lumen intended to support passage of interventional devices such as balloons, stents and guidewires.
Soft, atraumatic distal tip designed to reduce the risk of vessel wall trauma during engagement.
Single-use, sterile packaging for procedural readiness.

Clinical Applications
Intended for introduction of interventional cardiology devices into the coronary vasculature.
Suitable for use in catheterization laboratory environments performing percutaneous coronary procedures.
Commonly selected where a Kimny-type curve is preferred for coronary ostial access and back-up support.

Product Information
Brand: Boston Scientific
Product Line: MACH1 Guiding Catheter
Curve: KR3S (Kimny-style)
French Size: 6F
Category: Coronary Guiding Catheter
REF / UPN: H749343566540
Usable Length: Not specified in the located sources
Inner Diameter: Not specified in the located sources
Packaging: Single-use, sterile (confirm configuration with manufacturer documentation)
Regulatory Status: Refer to the official Boston Scientific Instructions for Use and regional regulatory documentation prior to procurement.