Method and system for registration of three-dimensional orthopedic operation navigation

Abstract

The invention belongs to the field of medical appliances and especially relates to a method and system for registration of three-dimensional orthopedic operation navigation. The invention solves the technical problem that the method and system for the registration of the three-dimensional orthopedic operation navigation with simple and convenient operations and a quick registration speed are provided. The adopted technical scheme is characterized in that the method for the registration of the three-dimensional orthopedic operation navigation comprises the steps that image coordinates of a mark point on a die body are collected; a conversion relation between a spatial motion track of a C-shaped arm and spatial coordinates of the mark point on the die body is determined; the spatial motion track of the C-shape arm is collected; the spatial coordinates of the mark point on the die body are computed according to the conversion relation between the spatial motion track of the C-shaped arm and the spatial coordinates of the mark point on the die body before an operation as well as the collected spatial motion track of the C-shaped arm; and the registration is conducted on the image coordinates of the mark point on the die body and the spatial coordinates of the mark point on the die body. The method and the system are applicable to the field of medical appliances.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a registration method and system for three-dimensional orthopedic surgery navigation. Background technique [0002] The three-dimensional orthopedic surgical navigation system is more and more widely used in clinical practice because of its ability to observe the position of surgical instruments in real time during surgery. The spatial coordinate system is established with the positioning system as the data source, and the transformation from the spatial coordinate system to the image coordinate system is realized by calculating the conversion relationship between the two coordinate systems, that is, registration, so as to achieve the purpose of real-time tracking and acquisition of surgical instruments during surgery. [0003] Registration is an essential and key step in the use of 3D orthopedic surgery navigation. The traditional registration method is mostly completed by pasting...

AI Technical Summary

Problems solved by technology

However, using the registration method of landmark points requires the patient to make special preparations before the operation, and also needs to calibrate the landmark points one b

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