Drilling And Milling Simulation Research Based On 3D Reconstruction Technology Of Skull

With the continuous advancement of technology and medical treatment,surgical robots have been gradually applied in clinical practice.Compared with traditional manual surgical operations,surgical robots have the advantages of high accuracy,good stability,and high efficiency,and can perform tasks that cannot be accurately performed by human hands.Surgical operation.At present,there are many researches on surgical robots,but most of them are research on the structure,navigation and path planning of robots,and few researches on the drilling and milling mechanism of surgical robots.In the operation of craniotomy,due to the special structural relationship of the intracranial tissue,relying solely on the experience of the doctor or the simple drilling and milling control of the surgical robot can not complete the entire craniotomy operation,and biological treatment of the skull and brain tissue is required.The mechanism research in the direction of mechanics serves as a theoretical support,and the theoretical basis is used to guide the process of skull drilling and milling by surgical robots and doctors.In this paper,a tomography scan of the human head is used to obtain the DICOM data of the skull brain CT,and the skull is 3D reconstructed.The reconstructed 3D model of the skull is used in skull drilling and milling simulation.The simulation results are compared and analyzed using a single variable method.Critical brain injury criteria.The relationship between the rotational speed and feed rate of the skull drill and the parameters of temperature and spindle force during the drilling and milling of the skull was studied.The specific research content and results of the paper are as follows:(1)Summarize the research status of domestic and foreign research on skull drilling and milling,three-dimensional reconstruction,and brain injury,and put forward the research content and significance of this article.(2)Introduced the types of craniocerebral injury,the mechanism of the injury,and the mechanical response of the skull.The mechanical properties of the skull material and the tolerance of the skull cells to temperature were introduced in detail.(3)Introduced the reverse engineering principles and processes used for 3D reconstruction of the skull.The DICOM data of the skull CT were obtained by computer tomography.The 3D reconstruction and threshold segmentation were performed using Mimics software to complete the 3D reconstruction of the skull.The 3D reconstruction model of the skull is reduced and smoothed.(4)Finite element analysis of skull drilling and milling on the skull model based on 3D reconstruction of the CT value of the skull.The feed speed and rotation speed of the skull drilling and milling were divided into 5 groups of simulation experiments.(5)The simulation results of 10 groups of skull drilling and milling simulation experiments were compared and analyzed using a single variable method.Combined with the mechanism and conditions of craniocerebral tissue injury during craniotomy,further analysis and research on skull drilling and milling.