Three-dimensional marking device and three-dimensional real-time positioning method for orthopedic surgery

Abstract

The invention provides a three-dimensional marking device, which comprises a multi-surface cube comprising at least four surfaces, wherein the at least four surfaces are respectively used as a main mark and at least three auxiliary marks, the main mark comprises a main graphic code, the at least three auxiliary marks respectively comprise a first auxiliary graphic code, a second auxiliary graphic code and a third auxiliary graphic code, and the first auxiliary graphic code comprises a first image code, a second image code and a third image code, the main graphic code is used for providing space coordinate information which is used for calculating six-degree-of-freedom attitude data; and a nail-shaped body used for being fixed on an operation part. The invention further provides a three-dimensional real-time positioning method for the orthopedic surgery, the three-dimensional real-time positioning method for the spinal surgery can calculate the six-degree-of-freedom posture data through the combination of the spinal nail and the three-dimensional marking device, and the spinal section is accurately positioned.

Description

Technical field [0001] The present invention relates to the field of orthopedic surgery, and in particular about a three-dimensional real-time positioning method of a stereo labeling device and orthopedic surgery. Background technique [0002] The surgical navigation system is an important development direction of surgery and minimally invasiveness. Optical surgery navigation technology is the most widely used surgical navigation technology. The paste mark is smaller than the relative mechanical fixing device, the operation is simple, and has been widely adopted than the accuracy of the anatomical marker. The optical navigation is tracked by tracking the patient's body and the markup point on the surgery tool. Before surgery, the labeling point and lesion position is determined by the operation of the three-dimensional medical image; the medium optical surgery navigation passes the positioning system by tracking the markings on the patient, real-time, with the preoperative three-...

AI Technical Summary

Problems solved by technology

[0003] The existing surgical navigation still has the following deficiencies: firstly, the marker points will drop during the surgical navigation process and need to be re-registered; secondly, the light of the marker points will be blocked if they are blocked; in addition, it is inconvenient to stick markers on some surgical sites point

[0005] However, the patent document lacks enough marking points, which will lead to a lack of directionality in positioning, thus making it impossible to accurately locate

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