Corrosion-resistant medical PEEK plastic raw materials

PEEK has the advantages of wear resistance, corrosion resistance, high temperature resistance, high strength, X-ray transmission, and good biocompatibility. Compared with typical medical materials such as titanium and cobalt-chromium alloys, PEEK offers many additional advantages: (1) lower elastic modulus (2) transparent to X-rays (3) excellent disinfection properties (4) better Biocompatibility (5) adjustable mechanical properties (6) greater design freedom.

1. Repair the skull to avoid discomfort in winter and summer heat

PEEK is currently the clinical cranioplasty material whose performance is closest to that of human bones. Compared with commonly used titanium alloys, PEEK has physical properties close to that of human bones. Cold and hot in summer. PEEK abandons the defects of conventional skull repair materials such as plexiglass, bone cement, and titanium alloy, such as strong rejection reaction, poor shaping effect, poor heat insulation effect, poor comfort, and poor postoperative X-ray permeability, and avoids discomfort caused by temperature differences. ;Using 3D printing technology to shape, after embedding, it fits perfectly, has a perfect shape, and has good tissue compatibility; its mechanical properties are close to human bones. This new material will be the material of choice for cranioplasty.

2. Repair the spine and reduce complications

At present, common interbody fusions are mainly titanium alloy fusions and PEEK fusions. Due to the high elastic modulus of titanium alloy, it is more prone to delay in fusion due to stress shielding after surgery, and it is gradually being replaced by PEEK fusion cages in recent years. The intervertebral fusion cage made of PEEK material is compatible with X-ray photography and MRI, and has a low elastic modulus, which can avoid the complications of autografts and the defects of allografts.

The performance of modified PEEK is stronger, and the adsorption and cross-linking of type I collagen can improve the surface hydrophilicity and hydrophobicity of the PEEK material and the adhesion and proliferation of cells. The modified material has better biocompatibility and stability than the unmodified material. Bone fusion ability.

3. Dental implant accessories make patients more comfortable to wear

PEEK is increasingly used in the field of stomatology because of its excellent chemical stability and resistance to corrosion by most chemical agents. PEEK materials are mainly used in dental implant accessories, such as temporary abutments, healing caps, and healing abutments. Compared with commonly used materials such as metal, zirconia and alumina, PEEK does not need to be sintered and is more precise; it has low density and light weight, making it comfortable for patients to wear; it is soft in texture and acts as a shock absorber for occlusion.

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