Non-radiation perspective visual navigation method and system for assisting orthopedic surgery

Abstract

The invention relates to a non-radiation perspective visual navigation method and a non-radiation perspective visual navigation system for assisting the orthopedic surgery. According to the system, the integral three-dimensional shape of a surgical site is acquired by utilizing conventional three-dimensional scanning data before the surgery, and the operation path of a surgical instrument is planned in advance; during the surgery process, a three-dimensional reconstruction device on the surgical instrument reconstructs the local three-dimensional shape of the exposed surgical site in real time, the local three-dimensional shape is matched with the integral three-dimensional shape, and thus the position relation between the surgical instrument and the operation path is determined; the surgical instrument is guided to carry out surgical operation along the pre-planned operation path according to the position relation. The invention provides the navigation method and the navigation system for the orthopedic surgery, which are simple and accurate, and are free of radiation injuries; with the navigation method and the navigation system, the accuracy of internal fixation placement of the orthopedic department can be obviously improved, the navigation process is simplified, the navigation matching time is shortened, the cost of navigation equipment is reduced, the radiation injuries during the surgery are avoided, and thus the accuracy and success rate of the internal fixation technology of the orthopedic department are comprehensively improved.

Description

technical field [0001] The invention relates to orthopedic surgery navigation, in particular to a non-radiographic perspective visual navigation method for assisting orthopedic surgery. Background technique [0002] Internal fixation technology is the core technology of orthopedics. Specific to multiple sub-specialties of orthopedics, regardless of spine surgery, joint surgery or trauma surgery, the core content of most operations is to accurately implant internal fixation materials on the premise of protecting important tissues such as nerves, muscles and blood vessels. into the bone to reconstruct or restore the anatomical structure of bones and joints. However, adverse events of short-term or long-term complications caused by failure of internal fixation emerge in an endless stream, and the orthopedic surgery navigation system emerges as the times require. [0003] For example, the most commonly used internal fixation in spinal surgery is the pedicle screw system. At p...

AI Technical Summary

Problems solved by technology

However, its disadvantages are: the cost of equipment and software is as high as tens of millions of yuan, the operation process is complicated and cumbersome, and the intraoperative three-dimensional CT scanning will cause additional radiation damage to patients and surgeons

Images