Modified peek has great potential in the field of medical implantation
Biomedical data is a highly skilled industry with the most interdisciplinary and common sense intensive, including metal, polymer and composite materials. Among them, medical polymer data is the earliest, most widely used and widely used data in biomedical data, and it is also a rapidly developing category. With the development of implant market, Peek (polyetheretherketone) as a new type of medical implant materials is used in plastic surgery, cardiovascular, artificial spine and other fields.
Domestic peek spinal blender is expected to be made in China
It is reported that the incidence rate of cervical spondylosis is about 7% in China, and the health problems of cervical spine in nearly one hundred million people can not be ignored. China introduced artificial disc replacement in 2003, mainly using imported products. It is estimated that in the next few years, the demand for artificial intervertebral discs in China will be more than 30000-60000 sets, and the market value will be about 3.7 billion RMB!
Dr. Shang Peng of Shenzhen Institute of advanced skills, Chinese Academy of Sciences, shared the project of "surface modified peek artificial intervertebral disc and biomechanics research" at the 4th biomedical information conference forum held by MEDTEC on March 15, 2016. He said that the research institute has planned a surface biological activity that conforms to the anatomical characteristics of human cervical spine in China A new type of artificial cervical intervertebral disc with biological fixation can be formed.
Modified peek is more powerful
According to Dr. Shang Peng, adsorption and crosslinking of type I collagen can improve the hydrophilicity and hydrophobicity of PEEK data surface and the adhesion and proliferation of cells. The coupling of BMP-2 can promote the annual payment, proliferation and decomposition ability of cells on the surface of peed data. Finally, the experimental results show that the modified data has better biocompatibility and bone blending ability for the unmodified data.
Recently, solvitt polymers, a supplier of high-function polymers, announced that zeniva polyetheretherketone (PEEK), one of the four major products in solviva implantable biological data series, has successfully passed the biocompatibility test of Tianjin Medical Device Quality Supervision and inspection center of China food and drug administration. The agency has conducted rigorous tests on the characteristics of zeniva peek, such as sensitization, intradermal toxicity, systemic acute toxicity, subchronic toxicity, genotoxicity and bone implant compatibility, to ensure the biological safety of the data in the human body. Safety is important for all implantable medical devices. Therefore, the modified peek can not be ignored in the field of medical implant.
Peek other medical occasions
Peek has the modulus close to the bone itself and has excellent toughness and fatigue resistance. It has more advantages than titanium and cobalt chromium alloy materials in the use of intervertebral equipment. It has many advantages such as biocompatibility, chemical stability and elastic modulus near the bone itself. With the development of implant market, peek has been used in more other fields, such as plastic surgery, cardiovascular, pharmaceutical and so on.
Because of its electrical insulation and excellent mechanical properties, peek is being used as a mounting component and a stand-alone implant in the cardiovascular field. In the pharmaceutical field, compared with other plastics, peek is the data of chemical resistance of body fluids. When used in injection molding, the data is light in weight, with high integration of parts and greater planning freedom
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