通过3D打印技术打印出符合患者面部特征并带有穿刺通道的模型，用于术前定位、术中引导穿刺方向，简化手术过程，提高外伤性颅内血肿穿刺准确性。

以1例25岁男性的外伤性脑内血肿颅脑CT二维图像为原始数据，利用Mimics 16.0软件处理，重建形成三维图像，设计穿刺通道，测量穿刺深度，通过3D打印机打印出带有穿刺针颅外段孔道的模型，术前置于术区定位，术中通过穿刺孔道置入引流管，控制穿刺深度，术后复查颅脑CT观察引流管末端位置。

在利用计算机软件设计带有穿刺针孔道的"面具"时可在三维空间任意旋转，从各个角度观察，避开重要血管及功能区，达到预定穿刺部位。

成功构建符合患者个体特征的三维图像，通过3D打印机将模型打印出来用于手术，可提高穿刺准确性，降低手术难度。

Through 3D printing prints out the facial features in patients with puncture channel model, which used for preoperative localization, intraoperative guided puncture direction to simplify the procedure and improve the traumatic intracranial hematoma puncture accuracy.

With a 25-year-old man traumatic brain hematoma craniocerebral CT two-dimensional image for the raw data,we use Mimics 16.0 software processing to form a 3D image reconstruction, to design the puncture channel and measure the puncture depth, then use 3D printer to print out the model with extracranial needle channel. We use the model to locate the area before the operation,to guide puncture direction and control puncture depth when doing operation. Review of the craniocerebral CT after the operation to observe the position of the drainage tube end.

Using the computer software design with a needle hole "mask" can rotate in 3D space, observed from various angles, to avoid the important blood vessel and functional areas, and achieving puncture.

Successfully build three-dimensional images conforming to the individual patient characteristics, and then print out the model used in surgery by 3D printer.In this way,puncture accuracy can be improved, and the operation difficulty can be reduced.