The Boston Scientific CHOICE Extra Support Coronary Guidewire (REF H74912135011) is engineered for interventional cardiology procedures requiring additional backup support during the navigation and delivery of coronary devices. As part of the CHOICE family of PTCA guidewires, the Extra Support version is intended to provide a stiffer shaft response than standard floppy variants while maintaining a shapeable, atraumatic distal tip for controlled vessel access.

Key Features
- Extra support shaft profile to enhance backup during balloon, stent, and device delivery
- Shapeable distal tip designed for controlled steering and torque response
- Hydrophilic and/or polymer coating segments to support smooth tracking (consult IFU for exact coating zones)
- Engineered transitions intended to balance pushability with distal flexibility
- Manufactured by Boston Scientific under the CHOICE guidewire platform

Clinical Applications
- Percutaneous coronary intervention (PCI) procedures requiring additional guidewire support
- Facilitation of balloon catheter, stent, and adjunctive device delivery in the coronary vasculature
- Navigation in tortuous or calcified anatomy where extra backup is preferred by the operator
- Exchange and rail support during multi-device coronary workflows

Product Information
- Brand: Boston Scientific
- Product Line: CHOICE Extra Support
- Category: Coronary Guidewires
- REF / UPN: H74912135011
- Guidewire Diameter: Not specified in the located sources
- Guidewire Length: Not specified in the located sources
- Tip Configuration: Not specified in the located sources
- Coating: Not specified in the located sources
- Sterility / Single Use: Refer to manufacturer IFU
- Regulatory Status: Refer to local Boston Scientific representative and official IFU for region-specific clearances and indications