Medicine operation navigation tracking device based on multispectral image

A multi-spectral image and surgical navigation technology, applied in the field of active optical tracking and positioning devices

Active Publication Date: 2008-07-09
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0007] In order to overcome the environmental limitations of existing optical surgical navigation systems, the present invention uses multispectral images to filter out background interference points, thereby accurately tracking active infrared marker points in real time, and adopts dual-camera stereotaxic positioning technology to achieve real-time tracking and positioning of surgical instruments the goal of

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  • Medicine operation navigation tracking device based on multispectral image
  • Medicine operation navigation tracking device based on multispectral image
  • Medicine operation navigation tracking device based on multispectral image

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Embodiment Construction

[0013] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0014] The core content of the present invention is to simultaneously acquire the images of the target by using dual cameras and optical filters with different passbands, so as to obtain images of different spectral ranges of the target. The targets are distinguished according to their luminous characteristics in different spectra, and finally the images of some non-interest targets that interfere with tracking are removed.

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] First, please refer to Fig. 1, the multispectral image-based medical ...

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Abstract

The invention is a medical operation guidance tracker which bases on multi-spectral images. The device includes a tracked handheld device and a tracking device which consists of two camera groups and is fixedly installed. The handheld device includes a device body and a plurality of luminous points used for tracking. The tracking device includes the two camera groups. Every camera group includes two cameras which pass through band pass filters with different band widths and a piece of semi-permeable and semi-reflecting glass. The tracking device also includes a data treatment unit which is coupled with the two camera groups and is used to analyze and treat the acquisitioned images to determine the position and the state of the handheld device. The invention collects images with different spectrums and filters the interferences of a general luminophor on a tracing system to realize the real-time position and state calculation of the handheld device and the tracking requirements on surgical instruments during the operation guidance.

Description

technical field [0001] The invention relates to an optical tracking system. In particular, the present invention relates to an active optical tracking and positioning device based on multispectral images for surgical navigation. Background technique [0002] The design principle of the surgical navigation system is derived from the GPS global satellite positioning system. However, because radio waves are easy to cause or be interfered in the operating room, Stealth Station(r), the world's first infrared optical surgical navigation system invented by Medtronic Shufamo Danli Co., Ltd. in the United States in 1988, solved this problem. Its design principle is the result of the organic combination of modern imaging technology, stereotactic technology and advanced computer technology. The locator is the basis of surgical navigation. It uses spatial position sensors to determine the spatial coordinates of anatomical structures or external marker points in the surgical area, so a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B19/00A61B34/20
Inventor 翁冬冬刘越王涌天
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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