Research On The Production Of Operable Cerebral Hemorrhage Model By 3D Printing Technology And Analysis Of Related Printed Materials

Objective To study and produce an operable cerebral hemorrhage model by using 3D printing technology,which is widely used in the operation training of clinical intracranial hematoma puncture drainage,and comprehensively improve the surgical operation level of clinicians,thereby widely improving the operation of minimally invasive hematoma puncture drainage.Therapeutic effect and improve the prognosis of patients with cerebral hemorrhage.Methods Combine 3D printing technology,3D printing materials and skull CT imaging data of patients with clinical cerebral hemorrhage,and use the 3D printing software(Mimics software)to conduct a series of tests and analysis on the feasibility of the operable cerebral hemorrhage model.It is divided into 3 stages.The first phase of the study:Mimics,a software,to reconstruct the skull CT imaging data of patients with cerebral hemorrhage,after that,the support rod,tray and hematoma wall needed a further design.The status of 3D printing materials in root medicine,select the materials of the corresponding structure,import the whole data into 3D printer and print out the individualized cerebral hemorrhage model,and use the stereotactic head-head puncture method to test the feasibility,function and nature of the model;The second phase of the study:divided into "artificial hematoma" direct printing and indirect printing.Direct printing is a combination of the first phase of research,using Mimics software to deal with the corresponding level of imaging of the head CT of patients with cerebral hemorrhage,leaving a circular trace of"artificial hematoma" on the corresponding level,making the difference in the stereoscopic simulation after reconstruction There is a cylindrical "artificial hematoma" in the spatial position.The whole data is imported into the 3D printer to print out the "multiple cylindrical hematoma" model,and the feasibility,function and nature of the model are tested by the stereotactic headgear method.The spherical hematoma is designed by Mimics software.Indirect printing,as we all known,is to select the center of the "artificial hematoma" at a certain level on the image,then mark it,thus,the spatial position of the point mark in the reconstructed map can be easily obtained.The third stage of the study:through the analysis of the printed materials designed in the first and second stage studies,as well as the exploration of other materials,summarize the advantages and disadvantages of the relevant materials and the conditions for appropriate selection.Results The first stage of the study:According to the size and location of the hematoma,the design and printing of the support rod,tray and hematoma wall were carried out in different situations,which can make the position of various hematomas stable,it can well simulate the puncture process of clinical patients and achieve better puncture experience.Second Stage study:By using a certain printing software to design an stereoscopic as well as simulation pictures,it is possible to print the"cylindrical artificial hematoma" directly.So,we can achieve the purpose on operating various hematomas in a single model for many times.Indirect printing of"spherical artificial hematoma"is closer to clinical practice in terms of operational experience and appearance;Phase ? study:Through the analysis of various materials,come to a conclusion that the materials in this study have advantages and disadvantages in softness,transparency,elasticity,storage time,appearance,cost and other aspects.Conclusion In this study,a general printing method for an operable individualized cerebral hemorrhage model and several printable methods for operable,individualized and multi-target cerebral hemorrhage models were explored.And discussed the advantages and disadvantages of the materials in this study preliminarily,in terms of softness,transparency,elasticity,storage time,appearance and cost.