What am I looking at?
Visual recognition
Long, slender fine-caliber needle with a removable stylet and a sharp Chiba bevel; many models include depth markings or an echogenic tip. Gauge and length vary by configuration.
01-03
Chiba needle
Fine percutaneous needle
Three-panel learning framework
Recognition, context, and distinction
What does it do, and where will I see it?
Use & procedural context
Used under ultrasound or fluoroscopy for fine percutaneous targeting, aspiration, or initial access to small or deep structures, including bile ducts, the renal collecting system, and focal soft-tissue lesions. Some access configurations permit placement of a 0.018-inch guidewire after the stylet is removed.
What most clearly distinguishes it from similar devices?
Key distinctions
The Chiba designation describes a fine-needle type rather than one fixed gauge or length. Compared with a routine short access needle, Chiba needles are typically longer and finer and are selected for precise deep-target access or aspiration.