The Cordis EMERALD Fixed-Core Guidewire (REF 502-521) is a stainless steel coronary guidewire engineered to support reliable navigation, catheter placement, and exchange during diagnostic angiographic procedures. Built on a fixed-core design, the EMERALD line is widely used by interventional cardiology and radiology teams seeking consistent torque response and predictable handling in routine vascular access workflows.

Key Features
- Fixed-core construction for stable shaft support and predictable performance.
- PTFE coating intended to reduce friction and support smooth catheter tracking and exchange.
- Stainless steel core providing torque transmission and shape retention.
- Atraumatic flexible tip designed to facilitate vessel navigation.
- Sterile, single-use packaging consistent with the EMERALD product family.
- Tip configuration, length, and diameter: Not specified in the located sources for REF 502-521.

Clinical Applications
- Introduction, positioning, and exchange of diagnostic catheters within the vascular system.
- Support during routine angiographic and diagnostic interventional procedures.
- General-purpose guidewire use where a fixed-core stainless steel wire is indicated by the treating clinician.
- Specific clinical indications, contraindications, and warnings: refer to the manufacturer Instructions for Use.

Product Information
- Brand: Cordis
- Product Line: EMERALD Fixed-Core Guidewire
- REF / UPN: 502-521
- Category: Coronary Guidewires
- Configuration details (tip style, J-curve radius, length, diameter, coating extent): Not specified in the located sources.
- Sterility: Supplied sterile, single use (refer to package labeling).
- Regulatory status and market availability: Refer to Cordis official documentation for the destination market.