SHOMEA Medical Grade Stainless Steel 18G Chiba Needle with Depth Markings & Luer Lock Hub

Medical - grade stainless steel, excellent biocompatibility

18G Large Bore Design Balances Strength and Sampling Efficiency

Chiba Tip Design Ensures Smooth Puncture and Minimal Trauma

Luer Lock Hub Ensures Operational Safety and Stability

Excellent surface quality, high brightness and low roughness

FAQ:

Q1: What is a "Chiba Needle"? How is it different from a standard puncture needle?

A:​ Originating from Chiba University in Japan, the Chiba needle is renowned for its unique thin wall, large inner lumen, and sharp triangular tip. Compared to standard puncture needles, the Chiba needle achieves a larger inner diameter by optimizing the wall thickness while maintaining the structural strength of the cannula. This means that with the same outer diameter, a Chiba needle can extract more tissue or drain more fluid, and its sharper tip causes less tissue damage during puncture.

Q2: In which specific medical scenarios is this 18G Chiba needle primarily used?

A:​ It is widely used in interventional radiology and clinical departments, including:

1. Image-guided biopsy:​ Such as puncture sampling of solid tumors in the liver, kidneys, lungs, thyroid, and lymph nodes.

2. Drainage and aspiration:​ Catheter drainage of pleural effusion, ascites, pericardial effusion, and abscesses.

3. Medicine injection:​ Intra-articular injection, nerve block anesthesia, and local chemotherapy infusion for tumors.

Q3: How do the markings on the needle body assist the doctor?

A:​ The black markings on the needle body are typically calibrated in centimeters (cm). Under CT or ultrasound guidance, the physician can observe the correspondence between the needle tip position and the markings in real-time via the imaging screen. For instance, if a lesion is 5cm beneath the skin surface, the doctor simply needs to advance the needle to the 5cm mark to ensure the tip accurately reaches the target, avoiding the risks associated with blind insertion based on feel.