What am I looking at?
Visual recognition
Reverse-curve catheter with a larger secondary loop than a Simmons 1; after reforming in the aortic arch, the distal hook engages branch ostia.
04-13
Simmons 2 catheter
Reverse-curve catheter
Three-panel learning framework
Recognition, context, and distinction
What does it do, and where will I see it?
Use & procedural context
Mid-size reverse-curve catheter providing more reach than a Simmons 1 for arch and visceral branch selection. Typical contexts include arch angiography, visceral angiography, and difficult branch selection.
What most clearly distinguishes it from similar devices?
Key distinctions
The Simmons 2 uses a larger secondary reverse curve than a Simmons 1, providing additional reach when branch origins cannot be engaged with simpler catheter shapes.