What am I looking at?
Visual recognition
Reverse-curve catheter with a larger, deeper secondary loop than a Simmons 2 after reformation.
04-14
Simmons 3 catheter
Large reverse-curve catheter
Three-panel learning framework
Recognition, context, and distinction
What does it do, and where will I see it?
Use & procedural context
Provides extended reach for difficult arch and visceral branch origins, including celiac, mesenteric, and renal targets, when smaller Simmons curves are insufficient.
What most clearly distinguishes it from similar devices?
Key distinctions
Simmons 3 offers the greatest reach of the common Simmons 1–3 set but requires more space to reform; curve number reflects geometry, not catheter size alone.