Microscopic surgical operation navigation system based on augmented reality and navigation method

Abstract

The invention relates to a microscopic surgical operation navigation system based on augmented reality and a navigation method. The navigation system comprises a fixing frame, a graph mark, a camera, a controller and display equipment, wherein the fixing frame comprises a foundation, a connection member, a fixing rod and a supporting board. The navigation method comprises steps that, S1, the fixing frame is fixed on an ill body; S2, the fixing frame and the ill body are scanned through a CTA, and a three-dimensional model is reconstructed; S3, a three-dimensional coordinate of the three-dimensional model is adjusted through software 3ds MAX to make the graph mark be at the world coordinate center; and S4, the three-dimensional model is projected by ARToolkit software onto a right center of the graph mark, so the three-dimensional model and the ill body image are superposed and fused. The system and the method are advantaged in that, the augmented reality technology is utilized, so the real world information, namely the ill body, is superposed and fused with virtual world information, namely the three-dimensional model of blood vessel muscle bones, so entity information which is difficult to experience in the real world can be acquired by operation doctors.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a microsurgery navigation system and navigation method based on augmented reality. Background technique [0002] 1. Free tissue flap transplantation using microsurgical techniques to anastomose blood vessels is a common treatment method for trauma repair and reconstruction and is widely used. However, microsurgery is still considered to be a difficult operation, which needs to rely on the experience of the surgeon. The operation time is long, the operation is difficult, and the risk is high. The key to the operation is to dissect and separate the blood supply vessels of the nutrient tissue flap. However, the diameter of the blood supply vessels is small, and the distribution and path of blood vessels vary greatly among individuals, which is an important reason for the high difficulty of surgery and difficult operation. However, if the integrity of the blood supply vascul...

AI Technical Summary

Problems solved by technology

However, regarding the application of this technology in microsurgery of free tissue flaps, specifically, the patient's individualized 3D models of blood vessels, muscles and other soft tissues are superimposed on the corresponding parts of the surgical field of view to guide the surgeon to dissect and separate soft tissues such as blood vessels. Patent databases, or various Chinese and foreign literature databases, have not been reported

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