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A General Marking Structure for Surgical Navigation and Its Image Position Acquisition Method

A technology of general marking and surgical navigation, applied in the field of general marking structure and image position acquisition of surgical navigation, can solve the problems of prolonged operation time, difficult automatic positioning, difficult control of registration accuracy, etc., so as to improve navigation accuracy and reduce manual positioning errors. , easy to paste and remove the effect

Active Publication Date: 2017-10-20
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current general clinical manual positioning marker structure registration method is affected by individual differences in manual operations, and it is difficult to control the final registration accuracy. Usually, in order to obtain the navigation accuracy that meets the surgical needs, it takes a long time to perform multiple marker structure positioning and positioning. Registration greatly prolongs the time of surgery, increases the burden on doctors and the risk of surgery, and also reduces the efficiency of surgery
Automatically obtaining the coordinates of marking structures is a feasible method to solve the problem of manually obtaining the coordinates of marking structures, but it is difficult to achieve automatic positioning for the pasted marking structures and anatomical marking structures used in clinical practice.
In addition, for different imaging devices, due to their different imaging principles, the marking structure that can be recognized by one imaging device cannot be recognized by another imaging device, so it is necessary to customize the marking structure for each imaging device, resulting in the type of marking structure Various, bring inconvenience to clinical use

Method used

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  • A General Marking Structure for Surgical Navigation and Its Image Position Acquisition Method
  • A General Marking Structure for Surgical Navigation and Its Image Position Acquisition Method
  • A General Marking Structure for Surgical Navigation and Its Image Position Acquisition Method

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Experimental program
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Effect test

Embodiment 1

[0030] Such as Figure 1a As shown, the base 10 has a hollow hemisphere and a cylindrical base connected in sequence, and the base 10 is manufactured by an integrated manufacturing process; the club body 20 can be placed on the base; the cylindrical base of the base 10 The lower solid cylinder has a radius of 8mm and a height of 8mm; the outer radius of the upper hollow cylinder of the cylinder base of the base 10 is 2.5mm, the inner radius is 1mm, and the height is 6mm; the outer radius of the spherical cap 30 is 6mm, and the inner radius is 5mm , the ball cap 30 and the base 10 cooperate through the external thread 31 and the internal thread 11, and the outer surface of the ball cap 30 and the outer surface of the hollow hemisphere of the base 10 are coated with a layer of reflective layer, which has the characteristics of strong reflection of near-infrared light and can reflect Near-infrared light is recognized and tracked by optical navigation systems. Both the base 10 and...

Embodiment 2

[0038] This embodiment is the same as Embodiment 1 except the following:

[0039] The difference between embodiment 2 and embodiment 1 lies in the geometric structure of the club body 20, such as Figure 1b As shown: the club body 20 is a sphere with a radius of 5 mm; the club body 20 can be placed on the base 10; the interior of the club body 20 is filled with a solution, and the filled solution is scanned and imaged under an MRI imaging device.

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Abstract

The invention discloses a general marking structure for surgical navigation and an image position acquisition method thereof. The marking structure comprises: a base, a ball cap and a club body; the base is manufactured by an integral forming process; the outer surface of the ball cap Both the outer surface of the hemisphere and the base are coated with a reflective layer, and the hollow hemisphere of the ball cap and the base cooperates through internal and external threads; the base of the marking structure and the ball cap are both made of materials with a CT value higher than that of the skin. Can be scanned and imaged by CT imaging equipment; the club body is placed in the base, the club body is filled with a solution, and scanned and imaged under the MRI imaging device; after the ball cap is twisted, the club body can be placed Go to the inside of the marking structure or take it out; the ball cap coated with a reflective layer and the hollow hemisphere of the base are tracked and identified by the optical navigation system. It has the advantages of reducing the manual positioning error of the marking structure, improving the navigation accuracy of the surgical navigation system, and the like.

Description

technical field [0001] The invention relates to the research field of computer-aided surgical navigation, in particular to a general marking structure for surgical navigation and an image position acquisition method thereof. Background technique [0002] Surgical navigation technology has developed rapidly in recent years and is gradually used in neurosurgery, oral and maxillofacial surgery, orthopedics and other operations. Surgical navigation technology is a combination of three-dimensional space positioning technology, medical image reconstruction visualization and clinical surgery, using positioning instruments to track and locate surgical instruments and patients in real time, and through coordinate system transformation, the surgical instruments are real-time in the three-dimensional reconstruction space of the patient's human body structure. Display, to assist doctors to complete high-precision surgical planning and surgical operations. The registration process of su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B34/20
Inventor 杨荣骞林钦永吴效明
Owner SOUTH CHINA UNIV OF TECH