Target location method and system supporting multiple stereotaxic instruments

Abstract

The present invention relates to a method and system for locating a target position supporting multiple stereotaxic instruments, wherein the method includes step S1, constructing a frame coordinate system of a positioning frame of the directional instrument; and step S2, calculating the coordinates of the target point under the frame coordinate system ; Step S3, according to the coordinates of the target point, calculate the vector from the target point to the entry point in the frame coordinate system; Step S4, calculate the orientation according to the coordinates of the target point and the vector from the target point to the entry point in the frame coordinate system instrument parameters. The present invention provides a basis for realizing a tool supporting multiple stereotaxic parameter calculations by establishing a general-purpose mechanical parameter calculation method and system for stereotaxic instruments, so that when doctors use different stereotaxic instruments to perform stereotactic operations, a set of stereotaxic instruments can be used. Computational methods for positioning and implementation.

Description

technical field [0001] The invention relates to the field of stereotaxic instruments, in particular to a target position positioning method and system supporting multiple stereotaxic instruments. Background technique [0002] Stereotactic surgery is to apply the principle of three-dimensional geometry coordinates, establish a brain coordinate system and install an orientation instrument on the skull, establish a coordinate system, locate the target structure of the brain, and place surgical manipulators (such as microelectrodes, biopsy needles, damaged needles, etc.) ) to import the target point for operation. Stereotaxic surgery is mainly used in the treatment of Parkinson's disease, tumors, epilepsy and other brain diseases in the field of neurosurgery. [0003] A three-dimensional space coordinate system is required for stereotaxic orientation. The stereotaxic instrument establishes a coordinate system through a frame outside the skull, that is, artificially installs a f...

AI Technical Summary

Problems solved by technology

Although the widely used orientation systems have their own characteristics, different orientation systems define different coordinate systems. Correspondingly, different orientation instruments define different mechanical data on this basis, so the parameter names and calculations of different orientation instruments The methods are different. If a clinician comes into contact with the orientation instrument of a different orientation system, he needs to re-learn the calculation parameters and positioning methods of the orientation system, which brings additional learning costs and workload.

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