Intraoperative CT coordinate and navigation camera registration device

Abstract

The invention discloses an intraoperative CT coordinate and navigation camera registration device which comprises a base plate and a calibration assembly detachably arranged on the base plate, and the calibration assembly comprises a CT coordinate ball sub-assembly used for calibrating CT coordinates and an optical marking ball sub-assembly used for calibrating a camera. Compared with the prior art, the calibration of the CT coordinate ball is added, the purpose is to identify the central position of the metal ball group under CT according to the actual spacing distance between the metal ball group and the adjacent optical reflection tracking ball, and verify the position of the optical reflection tracking ball identified by the adjacent navigation camera, the CT coordinate ball and the optical marking ball are separately arranged, so that the defects that a traditional dual-purpose marking ball is difficult to machine, a marking ball coating is prone to falling off to affect recognition of a single marking ball, and artifacts are serious under CT due to the large size of the marking ball are overcome, the calibration accuracy is improved, the operation success rate is increased, and the operation risk is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a device for registering CT coordinates and navigation cameras during operations. Background technique [0002] With the development and progress of medicine, the participation of navigation equipment in modern medical operations has generally increased, and machine-assisted puncture will be a major trend in the future. In CT surgical navigation equipment, medical navigation cameras are similar to human eyes, providing precise path navigation for terminal execution equipment. While the navigation camera plays a huge role, the accurate registration of the CT coordinate system and the optical navigation camera coordinate system is the prerequisite for its function. [0003] Since the common navigation camera optical marking ball is made of non-metallic material, the image is clear under the optical camera, but the image is not clear under the CT coordinate system; the comm...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a registration device for CT coordinates and navigation camera in operation to solve the difficulty in processing the marking ball of the registration device in the prior art, the coating of the marking ball is easy to fall off, and the diameter of the marking ball is too large, resulting in Artifacts under CT seriously affect the technical defects of identification,

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