Silicone gel has become a vital material in the medical industry due to its outstanding biocompatibility, flexibility, non-toxicity, and high thermal stability. From external medical devices to implantable materials, silicone gel demonstrates advantages that are difficult to replace with other materials.

1. Excellent Biocompatibility and Safety

Silicone gel is biologically inert, which means it has minimal interaction with human tissues. It does not cause allergic reactions, toxicity, or immune rejection. This makes it an ideal material for devices in long-term contact with the human body, such as implants, catheters, and prosthetics.

2. Common Medical Applications

Silicone gel is widely used in various medical tools and devices:

• Catheters: Central venous catheters, urinary catheters, and feeding tubes benefit from silicone’s flexibility and compression resistance, enhancing comfort and lifespan.

• Surgical accessories: Items like drainage tubes, airway tubes, and hemostatic lines use silicone for its safety and sterilization durability.

• Implants: Silicone is used in artificial valves, breast implants, and joint pads due to its form stability and body compatibility.

• Dental products: Silicone is found in mouthguards, dental impressions, and orthodontic devices for its fit and safety.

3. High-Temperature Sterilization Capability

Unlike conventional plastics, silicone gel can withstand repeated high-temperature steam sterilization (120–180°C) without deforming or aging. This ensures the hygiene and longevity of medical instruments.

4. Versatile Processing Techniques

Silicone gel can be processed through various molding methods like injection, extrusion, and compression. These flexible processes allow for the creation of complex shapes and custom-made medical parts. With the development of liquid silicone rubber (LSR), the automated production of high-precision, contamination-free medical components is becoming standard.

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