The Merit Medical Prelude Sheath Introducer with Merit Advance Needle (REF PSI-7F-11-035-18G) is a vascular access kit designed to facilitate percutaneous introduction of interventional devices into the peripheral vasculature. The Prelude sheath features a smooth dilator-to-sheath transition intended to support controlled insertion, while the included Merit Advance needle and guidewire provide a complete single-use access set for the catheterization laboratory.

Key Features
Integrated introducer set combining sheath, dilator, guidewire, and access needle.
Sheath size: 7F working channel, usable length approximately 11 cm.
Included guidewire: 0.035" diameter compatible with standard interventional devices.
Merit Advance access needle, 18G, for initial percutaneous vessel entry.
Hemostasis valve designed to reduce back-bleeding during device exchanges.
Integrated sidearm with three-way stopcock for flushing and aspiration.
Radiopaque markers and tip configuration to support fluoroscopic visualization. Not specified in the located sources for exact marker count.

Clinical Applications
Percutaneous vascular access for diagnostic and interventional catheter-based procedures.
Introduction of guidewires, catheters, and related interventional devices into the peripheral vasculature.
Use within hospital catheterization laboratories, interventional radiology suites, and vascular access units by trained clinicians in accordance with the manufacturer's Instructions for Use.

Product Information
Brand: Merit Medical.
Product line: Prelude Sheath Introducer.
Category: Coronary Introducer Sheaths.
REF/UPN: PSI-7F-11-035-18G.
Configuration: 7F sheath, 11 cm length, 0.035" guidewire, 18G Merit Advance needle.
Single-use, sterile device. Packaging quantity not specified in the located sources.
Storage, shelf life, and regulatory clearances: refer to the manufacturer's official IFU and product labeling.