The Boston Scientific MACH1 JR4 ST SH 8F Coronary Guiding Catheter (REF H749343587040) is a single-use interventional access catheter designed to deliver coronary devices to the right coronary ostium with consistent backup support and high torque fidelity. The MACH1 platform combines a stainless steel braid with a lubricious inner lumen and a soft atraumatic tip to facilitate stable cannulation and smooth device tracking through the aortic arch.

Key Features
Standard JR4 (Judkins Right 4) primary curve optimized for engagement of the right coronary artery.
Short Tip (ST) configuration intended to reduce deep intubation risk during selective engagement.
Side Holes (SH) to support coronary perfusion when the catheter is fully engaged in the ostium.
8F outer diameter with a large internal lumen to accommodate complex device delivery and bailout strategies.
Stainless steel braided shaft for 1:1 torque transmission and kink resistance.
Lubricious inner coating to minimize friction during device exchange.
Soft, atraumatic distal tip designed to reduce vessel trauma at engagement.

Clinical Applications
Percutaneous coronary intervention (PCI) requiring guiding catheter access to the right coronary artery.
Procedures where larger 8F lumen access is preferred for multi-device, rotational, or complex lesion strategies.
Cases where side holes may help maintain ostial flow during prolonged engagement. Procedural use should follow the manufacturer Instructions for Use and institutional protocols.

Product Information
Brand: Boston Scientific
Product Line: MACH1 Coronary Guiding Catheter
Curve: JR4 (Judkins Right 4)
Tip: Short Tip (ST)
Configuration: Side Holes (SH)
French Size: 8F
Category: Guiding Catheter
REF / UPN: H749343587040
Usage: Single-use, sterile
Working Length: Not specified in the located sources
Sterilization Method: Not specified in the located sources
Packaging Quantity: Not specified in the located sources