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Polytetrafluoroethylene (abbreviated as PTFE) is a high-molecular material with high chemical stability and excellent physical properties, known as the "King of Plastics". It was discovered by Dr. Roy Plunkett of DuPont in the United States in 1938. Its main components are carbon and fluorine elements, and all hydrogen atoms in its molecular structure are replaced by fluorine atoms, forming highly stable C-F bonds. This special molecular structure endows PTFE with excellent resistance to heat, cold, corrosion, and aging.
Due toits good biocompatibility, the application range of expanded PTFE membrane is wide.
Expanded PTFE membrane is used to make artificial joints, expanded PTFE membrane's resistance to corrosion and low friction coefficient makes it an ideal choice for joint surface coatings, which helps improve the durability and smoothness of joint motions.
Expanded PTFE membrane is used to make vascular stents and catheters. Expanded PTFE membrane and other materials are widely used in the manufacture of vascular stents and catheters. Its biocompatibility, chemical stability, and mechanical strength make it suitable for medical devices for the heart, blood vessels, arteries, and veins.
Expanded PTFE membrane is used to make implantable medical devices. PTFE materials are used to manufacture implantable medical devices such as pacemaker leads, artificial blood vessels, and other implants. Its biocompatibility and chemical stability are crucial for good compatibility with human tissues.
Expanded PTFE membrane is used in dental materials. PTFE also has some applications in dental fields, such as in the manufacture of sliding wear-resistant dental instruments or as a material used in clinical dental surgery.
In drug packaging, it can also be used to manufacture drug containers and infusion tubes. The chemical stability of expanded PTFE membrane materials ensures the purity and stability of the drug.
Expanded PTFE Membrane is also widely used as medical membrane, such as surgical gowns, surgical drapes, wound dressings, sterilized instrument wrapping materials, etc. Surgical gowns should have protective and breathable properties to ensure that medical staff are not infected by the patient's blood during surgery and to provide comfort while wearing, especially to prevent certain highly permeable areas such as the abdomen to chest and from the elbow to the wrist sleeves from getting infected.
In addition, organic coatings are widely used in minimally invasive(or intravascular) interventional treatment technologies such as medical catheters, guide wires, and orthodontic wires in dental orthopedic surgery. The outermost coating layer of the catheter mostly uses polyethylene material, which determines the shape, hardness, and friction with the inner membrane of the blood vessel of a catheter.
Overall, expanded PTFE membrane has a wide range of applications in the medical field and plays an important role in the development of medical standards.