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High-precision optical positioning system for surgical navigation

A technology of optical positioning and surgical navigation, which is applied to surgical navigation systems and other directions, can solve problems such as inconvenience in operation, and achieve the effects of high positioning accuracy, simple disassembly and installation, and simplified positioning.

Active Publication Date: 2016-04-20
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The biggest disadvantage is that it has a power supply cable, which is inconvenient to operate

Method used

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  • High-precision optical positioning system for surgical navigation
  • High-precision optical positioning system for surgical navigation
  • High-precision optical positioning system for surgical navigation

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Experimental program
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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] like Figure 1 to Figure 6 , a high-precision optical positioning system for surgical navigation, including a medical imaging workstation 1, a first camera 2, a second camera 3, a transmission line 4, a computer processor 5, a video port 6, an active locator 7, and a marker point a8, passive locator 9, marking point b10, first mounting hole 11, second mounting hole 12, jack 13 and plug 14; the side wall of the medical imaging workstation 1 is provided w...

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Abstract

The invention discloses a high-precision optical positioning system for surgical navigation. The high-precision optical positioning system for surgical navigation comprises a high-precision optical positioning system platform and a software module driving the high-precision optical positioning system platform; the high-precision optical positioning system platform comprises a binocular vision system with two cameras, an active or passive positioner, a marker and a medical image working table; four luminous colored lamps serving as mark points are further installed on the high-precision optical positioning system platform; the cameras of the binocular vision system adopt PAL signal output and are connected with the medical image working table through a video port. A ridge detection method based on Hilbert conversion is adopted to conduct angular point subpixel extraction, and meanwhile stereo matching is conducted through an absolute gray level difference and matching algorithm of epipolar constraint. It is indicated through experiments that the system has the advantages for being stable, reliable, low in cost, simple in calibration method, accurate in matching, high in positioning accuracy and the like, and the requirements of surgical navigation can be met.

Description

technical field [0001] The invention relates to an optical positioning system for surgical navigation, in particular to a high-precision optical positioning system for surgical navigation, which belongs to the field of medical equipment. Background technique [0002] Surgical navigation is the organic combination of modern imaging technology, stereotactic technology and advanced computer technology. Surgical navigation system is an auxiliary device for minimally invasive surgery such as neurosurgery, ENT, orthopedics. It is of great significance to improve the accuracy of surgical positioning, reduce surgical injury, optimize surgical path and improve the success rate of surgery. Usually, the whole system of surgical navigation includes a medical imaging workstation and a set of spatial positioning devices connected thereto. At present, the acquisition and processing of medical images can be independently developed in my country, while the spatial positioning system is com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B34/20
Inventor 陈雪松谢勤岚刘海华
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES