Rapid registration method and device for a robot-assisted spinal operation

Abstract

The invention discloses a rapid registration method and device for a robot-assisted spinal operation. The method comprises the steps: carrying out the Boolean operation of a three-dimensional model ofa registration device and a spinous process part of a vertebral three-dimensional model of an operation object, and exporting a registration matrix; exporting the registration device three-dimensional model after Boolean operation, and carrying out rapid prototyping processing; and in the operation process, enabling the registration device object to be installed and fixed on the spinous process part of the operation object, and completing registration. The method is simple in interactive operation, short in learning period, light in registration device, easy to carry to disinfect and high inregistration speed, X-ray radiation exposure is avoided, and the operation environment is improved.

Description

technical field [0001] The invention relates to the field of surgical aids, in particular to a rapid registration method and device for robot-assisted spinal surgery. Background technique [0002] In robot-assisted orthopedic surgery, it is often necessary to map the preoperative surgeon's planning data to the intraoperative surgical object space, that is, the registration technology between the surgical space and the image space is the key to determining whether the robot-assisted surgery can be successfully performed. [0003] The existing technology needs to use the C-arm machine combined with the corresponding registration device for registration. During the operation, the C-arm machine is used to perform standard anteroposterior and standard lateral perspectives on the registration device with navigation markers, and the steel in the field of view is selected. The ball mark point is brought into the C-arm imaging model to solve the model parameters, and the two C-arm im...

AI Technical Summary

Problems solved by technology

[0004] The existing registration devices and registration methods have the following defects: 1. The intraoperative imaging equipment C-arm machine has problems such as large volume, heavy weight, and X-ray damage to the human body; 2. When shooting the standard front and side views, The shooting angle is extremely difficult to grasp, and it is prone to the problem that the operating bed blocks the C-arm imaging; 3. The image distortion of the C-arm machine is serious, the calculation error of the projection mapping model is large, and the registration accuracy is not high; 4. During the whole registration process, interactive The operation is complex, time-consuming, and the operator has a long learning period

[0005] It can be seen that the above-mentioned existing registration method and fitting device obviously still have inconvenience and defects in structure, method and use, and need to be further improved urgently.

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