Themedical silicone used in medical devices is a two-component addition type liquid silicone rubber, which has the advantages of good dimensional stability, good tensile and tear resistance, minor shrinkage, good mold release, and high transparency of silicone molds. The heat resistance can reach 250°C Above, widely used in medical equipment sealing, medical products, and medical transparent silicone.

How to use medical silicone products:

1. Mixing: The base glue and the curing agent are mixed in a weight ratio of 1:1, and the mixing can be done manually or with equipment.

2. Degassing: The mixed glue should be degassed before filling the mold. When used in a small amount, it can be carried out in a vacuum desiccator. Under vacuum, the volume of the rubber compound can increase by 4-5 times (foaming). Therefore, the volume of the degassed container should be 4-5 times larger than the volume of the glue. The gel volume returns to normal and is complete when no air bubbles escape from the surface (approximately 10 minutes).

3. Surface treatment: liquid paraffin can be used as a release agent on the surface of the mold or the surface of the potting material that the rubber material will contact.

4. Vulcanization and de-molding: After mixing and degassing, place the rubber material at 120±5°C to bake for 30 minutes to cure, and bake at 60-70°C for 2-3 hours to fix, and the curing time at room temperature is 24Hr. The curing temperature and time can be adjusted. It depends on the process conditions.

What are the medical silicone products:

Medical silicone products 1: trachea, cannula, intubation

Medical silicone product 2: pronunciation button

Medical silicone product 3: Chest drainage tube

Medical silicone product 4: pericardial drainage tube

Medical silicone product 5: double-lumen drainage tube

Medical silicone product 6: cross flower drainage tube

Medical silicone product 7: three-lumen drainage tube

Medical silicone products 8: breast, a thyroid drainage tube

Medical silicone product 9: Disposable suction tube

Medical silicone products 10: nutrition tube

Medical Silicone Products 11: Double Lumen Catheter

Medical Silicone Products 12: Medical Respiratory Masks

Medical Silicone Products 13: Silicone Heart

Features of medical silicone products:

Silica gel has excellent physiological inertia and biocompatibility. It has no toxic reaction in long-term contact with body fluids, tissues and blood, does not adhere to surrounding tissue, is resistant to biological aging, and does not age and degrade after long-term implantation in the human body. Boiling, high-pressure sterilization, liquid medicine or gas sterilization does not affect performance and is easy to process and shape, so silicone rubber is widely used in medical and health care.

Characteristics of medical silicone products

Before use, use alcohol or isopropanol to wipe off the foreign matter on the surface of medical silicone products, wash them with distilled water, and sterilize them with high-pressure steam for 0.5 hours or boil them for 4 hours. It can also be disinfected with liquid medicine, gas and radiation. The radiation disinfection method is that the radiation dose has no apparent influence on the physical and mechanical properties of the product within the range of 2.5 Mlat.

Packaging, storage and precautions for medical silicone products: Medical silicone products are packaged in polyethylene plastic without disinfection. Avoid contact with organic solvents and gasoline and other items, and cannot be soaked in alcohol or gasoline for a long time. Stored indoors at 35°C or lower temperature, the storage period is 5 years and transported as non-dangerous goods.

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