SHOMEA Medical Grade Nitinol Replacement Core with Stainless Steel Spring Sheath & Gold-Plated Luer Lock Base

Superelastic Memory Alloy Material Ensures Precision Operation and Biocompatibility

Spring Sheath Provides Mechanical Protection and Assists Fluid Control

Gold-Plated Base Prevents Corrosion and Ensures Leak-Free Connection

Excellent surface quality, high brightness and low roughness

FAQ:

Q1: What is Nitinol, and what advantages does it have over traditional stainless steel needles?

Nitinol is a unique metal with "shape memory effect" and "superelasticity." Compared to traditional stainless steel, it is softer and more flexible at the same diameter, allowing easier navigation through complex anatomical structures without easily puncturing tissues. Moreover, it interferes less with X-ray, CT, or ultrasound imaging, making it ideal for precise positioning in minimally invasive surgeries.

Q2: What types of medical surgeries or instruments is this refill mainly suitable for?

This precision replacement core is typically used in minimally invasive interventional surgeries requiring high precision and flexibility, such as urological lithotripsy and stone clearance systems, gastroenterological biopsy channels, otolaryngological sinus irrigation, and various soft tissue aspiration and medicine delivery systems. It serves as an ideal internal component for many disposable or reusable sheaths/probes.

Q3: What is the specific function of the gold-plated base? Will the wear of the coating affect its use?

The primary function of the gold-plated base is to provide excellent corrosion resistance and a very low internal surface friction coefficient, ensuring seal integrity and smoothness when connected to a Luer lock. Our gold-plating process is highly mature, and the coating thickness undergoes strict testing. Under normal use and sterilization cycles, wear is extremely unlikely. Even after prolonged use, its leak-proof and connection stability remain reliably guaranteed.

Q4: Will the spring sheath affect the puncture performance of the needle or increase resistance?

No, it will not. The spring sheath fits closely around the outer core, designed to provide support and protection in the non-working segment (e.g., near the handle). During actual puncture, the spring smoothly deploys as the core advances without increasing effective puncture resistance. Instead, it acts as a supportive fixation after the needle tract is formed, preventing core deviation.