Anesthesia needle catheter SonoLong Curl Echo

thoracichumanbox of 10 units

Product
The SonoLong Curl Echo is an echogenic specialty catheter-through-needle system developed by PAJUNK® together with Dr. Cedric Luyet, especially suited for paravertebral blocks. The catheter features a curled tip designed to reduce the chance of catheter migration. The soft Curl catheter tip rolls up, placing the catheter tip at the needle tip position. Six lateral openings provide consistent distribution of local anaesthetic around the nerve. The SonoLong Curl Echo catheter is visible under ultrasound and is radiopaque.

Overview
Designed for regional anaesthesia procedures (paravertebral blocks). Includes catheter and matching Tuohy needle system with filtration and clamping components as part of the set.

Catheter Features & Advantages

• Curl Tip: specialty catheter with curled end, closed tip and six lateral openings
• Even distribution of local anaesthetic around the nerve
• Stainless steel helical coil: improves ultrasound visibility; increases catheter flexibility and stability, reducing chance of kinking; radiopaque
• Depth markings: graduations on the first 30 cm for easy determination of catheter positioning; easy to read and identify
• Outlet markings: (1) 10 mm marking indicates catheter is exiting the needle tip; (2) marking indicates catheter tip is completely curled up

Needle Features & Advantages

• Echogenic needle tip: facet tip with two inclination angles to improve needle tip visibility under ultrasound
• Cornerstone reflectors: 360° graduations on the first 20 mm of the needle for optimised ultrasound visibility of needle shaft and tip; reliable echogenicity at higher angles
• NanoLine® coating: very thin polymer film on inner and outer needle surfaces for excellent puncture and gliding properties; preserves precise stimulation via non-insulated needle tip
• Depth markings on needle in solid black: helps visualization of insertion depth during placement

Ordering information
Item description | LUER Item no. | NRFit® Item no. | Purchase Unit
18G x 50 mm (2") with Tuohy Tip; 20G x 50 cm catheter with 6 lateral openings; Clamping Adapter (yellow); Minifilter 0.2 µm; FixoLong Mini | 531188-31C | 531168-31C | 10
18G x 100 mm (4") with Tuohy Tip; 20G x 90 cm catheter with 6 lateral openings; MiniFilter 0.2 µm; Clamping Adapter (yellow); FixoLong Mini | 521188-34C | 521168-34C | 10

Clinical & product notes
The Curl catheter design places the catheter tip at the needle tip position when curled, aiming to reduce migration and promote circumferential anaesthetic distribution. The system is intended for ultrasound-guided regional anaesthesia applications where catheter visibility and stable placement are important.

References / Evidence cited on product page
Selected literature cited on the product page includes studies on echogenicity of needles and imaging studies of coiled catheters for regional anaesthesia (e.g., Luyet et al., Reg. Anesth. Pain Med.; Fuzier et al.).

Technical specifications

• Brand: PAJUNK
• Denomination (model): SonoLong Curl Echo
• Type: Echogenic catheter-through-needle system for regional anaesthesia (paravertebral blocks)
• Catheter tip: curled (coiled) closed tip with six lateral openings
• Catheter length options: 50 cm (20G), 90 cm (20G)
• Needle: Tuohy-type; available lengths 50 mm (18G) and 100 mm (18G)
• Needle features: echogenic facet tip (two inclination angles), Cornerstone reflectors (360° graduations first 20 mm)
• Coating: NanoLine® coating on inner and outer needle surfaces
• Radiopacity: catheter radiopaque; stainless steel helical coil contributes to radiopacity and ultrasound visibility
• Depth markings: graduations on first 30 cm of catheter; solid-black depth markings on needle
• Connectors: available in LUER and NRFit® configurations (NRFit® is a registered trademark of GEDSA)
• Included set components (per item): catheter, Tuohy needle, clamping adapter (yellow), minifilter 0.2 µm (or MiniFilter 0.2 µm depending on item), FixoLong Mini
• Packaging / Purchase unit: 10 pieces per purchase unit
• Part numbers (examples): LUER 531188-31C / NRFit 531168-31C (18G x 50 mm set); LUER 521188-34C / NRFit 521168-34C (18G x 100 mm set)
• Visibility: optimised ultrasound visibility (echogenic features + helical coil)
• Intended use: regional anaesthesia catheter placement (e.g., paravertebral blocks)