PEEK skull repair
The skull is one of the hardest bones in the human body. It can withstand greater pressure, resist a lot of damage, and protect the brain tissue. Under normal circumstances, the skull will not be damaged. However, there are still many people in life who suffer from skull defects for various reasons, such as craniocerebral trauma caused by falling objects from high altitudes, fighting, etc., or having to remove part of the bone flap due to surgery.
PEEK skull repair material is a new type of implant-grade material. Its scientific name is polyetheretherketone. After 3D processing, it can achieve the effect of fitting and shaping, and fit the surrounding skull. In addition, it is resistant to high temperatures and has poor heat conduction. After the peek material skull repair is completed, there is no restriction on further examination. The image will be clearer during CT examination, and the degree of shaping fit can be seen
PEEK biocompatibility testing
Experimental standards | Experiment Name | Experimental Results |
IS0 10993-4:2017 | In vitro hemolytic performance test | pass |
IS0 10993-10:2010 | Intradermal reaction test | pass |
IS0 10993-10:2010 | Skin sensitization test | pass |
IS0 10993-5:2009 | Cytotoxicity assay | pass |
IS0 10993-11:2017 | Acute toxicity test | pass |
IS0 10993-11:2017 | Pyrogen test | pass |
Typical performance table of PEEK and PPSU medical grade plastics
Polymer properties/types | unit | PEEK5600G | PEEK5600GF30 | PEEK5600CF30 | PPSU | PSU | Test Standards |
Fiber Content | Not filled | 30% glass fiber | 30% Carbon Fiber | Not filled | Not filled | — | |
Tensile Strength | MPa | 101 | 163 | 220 | 72 | 69 | ISO 527-1/-2 |
Tensile modulus | GPa | 3.5 | 11 | 21 | 2.2 | 2.5 | ISO 527-1/-2 |
Elongation at break | % | 10-20 | 2.8 | 1.7 | 60-120 | 50-100 | ISO 527-1/-2 |
Bending Strength | MPa | 157 | 260 | 321 | 91 | 103 | ISO 178 |
Flexural modulus | GPa | 3.5 | 10.5 | 17.9 | 2.4 | 2.6 | ISO 178 |
Unnotched impact strength | J/m | No Break | 860 | 637 | No Break | No Break | ISO 180/IU |
Heat deformation temperature 1.82MPa | °C | 160 | 315 | 315 | 210 |
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