Medical requirements for skull implants are very strict. Implants should be beneficial to promote wound healing after being implanted in the patient's skull and should have a high degree of fit with the human body structure. The process of 3D printing layered manufacturing is to use a laser to harden the titanium metal layer by layer to form a size and shape that has a high degree of fit with the human body.
Image source: Renishaw
Due to the porous structure of bones, integration with biological functions and minimal heat dissipation in brain tissue are the most important factors to be considered in skull implant surgery. Although the human body can adapt to the human body, the risks still exist. When the human body is exposed to sunlight, the titanium metal implant generates excessive heat. Another factor is that titanium implants must prevent cerebrospinal fluid exudation.
Only porous orthopedic implants can meet these strict requirements. The fixation by bone screws can not only promote the liquid to pass through the lattice structure of the implant, but also allow the implant to fuse with the human skull. This design also has a thermal insulation effect to minimize heat dissipation in the cranial cavity.
The 3D printing of skull implants not only requires accurate modeling, but also meets medical requirements, and also meets the requirements of 3D printing. For this reason, Renishaw has launched a process chain from scanning to 3D, to modeling and printing . 
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