What are the materials of closed suction tubes?

The materials of closed suction tubes mainly include the following medical grade materials, each with different characteristics and suitable for specific medical scenarios:

● Polyvinyl chloride (PVC): This is one of the most commonly used materials, with the advantages of low cost and easy processing. However, its chemical stability is poor, and it cannot come into contact with oily liquids (such as certain anesthetics), otherwise it may dissolve and deform, affecting safety and effectiveness. ‌

● Silicone: Known for its softness and good biocompatibility, it is suitable for newborns, young children, or sensitive patients. It can reduce irritation to the mucosa, but it is expensive and requires attention to high temperature resistance. ‌

● Polyethylene (PE): Moderate hardness, strong chemical stability, able to withstand various drugs and disinfectants, high transparency for easy observation of drainage fluid properties, commonly used in precision operation scenarios such as operating rooms or emergency departments. ‌

● Polyurethane (PU): It combines softness and durability, with adjustable hardness, suitable for complex needs such as intensive care or cardiovascular surgery, but at a higher cost. ‌

● Metal materials, such as H62, Hpb59-1, or 12Cr18Ni9 alloys, are commonly used in the joints or structural components of some surgical suction tubes, and have corrosion resistance and high strength characteristics.

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When selecting materials, specific applications of this Closed Suction Catheter such as oral suction, surgical drainage, or infant use should be considered to ensure safety and effectiveness. For example, silicone is often used for infant respiratory tract suction to ensure softness, while PE or PU may be prioritized for surgical scenes to balance accuracy and chemical stability. ‌