Unlock instant, AI-driven research and patent intelligence for your innovation.

Surgical navigation general marking structure and image position obtaining method thereof

A technology of surgical navigation and universal marking, applied in the fields of surgery, application, medical science, etc., can solve the problems of difficult automatic positioning, prolonging the operation time, inconvenient use, etc., to achieve convenient sticking and removal, improve navigation accuracy, and reduce manual positioning errors. Effect

Active Publication Date: 2015-11-18
SOUTH CHINA UNIV OF TECH
View PDF8 Cites 13 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Surgical navigation general marking structure and image position obtaining method thereof
  • Surgical navigation general marking structure and image position obtaining method thereof
  • Surgical navigation general marking structure and image position obtaining method thereof

Examples

Experimental program
Comparison scheme
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, 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 the...

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.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Radiusaaaaaaaaaa
Radiusaaaaaaaaaa
Login to View More

Abstract

The invention discloses a surgical navigation general marking structure and an image position obtaining method thereof. The surgical navigation general marking structure comprises a pedestal, a ball cap and a ball rod. The pedestal is formed integrally, the external surface of the ball cap is coated by a reflective layer, the external surface of the hemispheroid of the pedestal is coated by a reflective layer, the ball cap is matched with the hollow hemispheroid of the pedestal through internal or external threads, and the pedestal and the ball cap of the marking structure are made of a material the CT value of which is higher than that of skins, and can be scanned by a CT imaging device to form images. The ball rod is arranged in the pedestal, the interior of the ball rod is filled with a solution, and the ball rod is scanned by an MRI imaging device to form images. After the ball cap is twisted, the ball rod can be arranged in or taken out of the marking structure, the ball cap and the hollow hemispheroid of the pedestal which are coated by the reflective layers are tracked and identified by an optical navigation system. The surgical navigation general marking structure is advantaged in that the manual positioning error of the marking structure is reduced, and the navigation precision of the surgical navigation system is improved 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A61B19/00
Inventor 杨荣骞林钦永吴效明
Owner SOUTH CHINA UNIV OF TECH