Skeleton operation guide plate manufacturing method based on 3D printing

Abstract

The invention discloses a skeleton operation guide plate manufacturing method based on 3D printing and belongs to the medical technical field. The method includes the steps that human body CT scanning Dicom data are acquired, and according to the difference of human body tissue optical density values, by the utilization of open type medical imaging software mimics, skeleton data are acquired, a human body skeleton virtual operation is finished, and an individual operation guide plate is manufactured in the needed position; an STL format is output to a 3D printer for printing, a printing mode for using a polylactic acid (PLA) material for melting fibers and adding materials is used, and a guide plate model is acquired and used for assisting a clinical skeleton operation. By the adoption of the method, clinical radioactive data can be rapidly, conveniently and publically shared, the individual skeleton or hard tissue model is established, the individual operation guide plate is manufactured, operation accuracy is improved, and operation time is saved.

Description

technical field [0001] The invention belongs to the field of medical technology, and in particular relates to a manufacturing method of a bone surgery guide plate based on 3D printing. Background technique [0002] There are a large number of physical models in clinical and scientific research. Due to the three-dimensional anatomical shape of the bone, it is difficult to successfully complete medical reconstruction during surgery. At present, the application value of 3D printing rapid prototyping technology in bone defect reconstruction has been recognized. It can assist in diagnosis of diseases, formulate plans, simulate operations, reduce Trauma, greatly improving the diagnostic accuracy and operational precision. Human skeletal tissue is a kind of hard tissue with a three-dimensional space structure. In the process of trauma or tumor treatment of patients, doctors are required to use metal fixation plates to fix the broken ends of the bones to complete the continuity of ...

AI Technical Summary

Problems solved by technology

Due to the individual differences of human bones and the human factors of doctors during the operation, the reduction of fractures and the truncation of bones are often not accurate enough, resulting in a certain gap between the effect after reduction and the doctor's expectations, and the accuracy of surgery and the therapeutic effect are not ideal.

Taking oral and maxillofacial surgery as an example, patients with jaw tumor resection or fractures need titanium metal or absorbable plates to complete the repair and reconstruction, but the reduction of fractures and the amputation of bones are usually completed by the surgeon with his own sensory judgment during the operation , there is a large human error, which will have a great impact on the reconstruction effect after fracture reduction and tumor resection, especially maxillofacial fractures or tumors often involve the occlusal relationship of the upper and lower dentition, if the fracture reduction or osteotomy A slight deviation in the posterior reconstruction will cause obvious abnormalities in the occlusal relationship, resulting in the inability of the patient to eat normally after surgery, which greatly affects the quality of life of the patient after surgery