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Method for arranging radioactive particles in applicator for treating intraocular malignant tumor

A technology of radioactive particles and arrangement method, applied in the field of radioactive particle arrangement, can solve the problems of inconvenient life of patients, affecting eyesight, increasing family and social burden, etc., and achieving the effect of uniform and uniform distribution of radioactive doses

Active Publication Date: 2020-02-11
HTA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the special location and growth characteristics of intraocular malignant tumors, it will not only seriously affect vision, cause inconvenience to patients, increase family and social burden, and even threaten life

Method used

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  • Method for arranging radioactive particles in applicator for treating intraocular malignant tumor
  • Method for arranging radioactive particles in applicator for treating intraocular malignant tumor
  • Method for arranging radioactive particles in applicator for treating intraocular malignant tumor

Examples

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Embodiment 1

[0036] See attached figure 1 And attached figure 2As shown, the applicator for treating intraocular malignant tumors in this solution includes a shell 2 , a lining 3 and radioactive particles 1 . Wherein, the radius of curvature of the concave surface of the lining 3 (preferably 12.0mm) is the same as the radius of curvature of the surface of the eyeball 4 (i.e. the eyeball surface), the bottom diameter of the concave surface of the lining 3 is R (in mm) and 8≤R≤24, the lining 3 The thickness is preferably 1-5mm, and the convex surface of the lining 3 is provided with several grooves 31 (the preferred length is 4.8mm, the width is 0.85mm, and the thickness between the bottom surface of the groove 31 and the concave surface of the lining 3 is preferably 1mm), the grooves 31 Used to place radioactive particles 1 (commonly used specifications with a diameter of 0.8±0.03mm and a length of 4.5±0.2mm), thereby forming an array of radioactive particles 1, the radioactive particles ...

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Abstract

The invention provides a method for arranging radioactive particles in an applicator for treating intraocular malignant tumor. The method comprises the following steps of firstly determining a three-dimensional space origin, and establishing a three-dimensional space model; and then projecting the applicator comprising the radioactive particles to a two-dimensional surface, enabling the projectionlines of radioactive particle axes in the two-dimensional surface to be uniformly distributed according to mathematical laws, determining space coordinate parameters of the midpoint and the end pointof each radioactive particle axis based on the distribution of the projection lines, the dimensions of the radioactive particles, grooves formed in convex surfaces of liners of the applicator, the thickness between the concave surfaces of the liners and the like, and according to the space coordinate parameters, forming the grooves for placing the radioactive particles on the convex surfaces of the liners of the applicator according to the space coordinate parameters. Through the adoption of the method disclosed by the invention, the radioactive particles are uniform in distribution, namely that the radioactive dosage is uniform in distribution; according to the method disclosed by the invention, the grooves are formed in the convex surfaces of the liners of the applicator to form seriesstandardized applicator products, so that the production of plants is facilitated, selection and usage of a clinician are also facilitated, and treatment individualization can be realized according tothe situation of a patient.

Description

technical field [0001] The invention relates to the technical field of radiotherapy, in particular to a method for arranging radioactive particles in an applicator for treating intraocular malignant tumors. Background technique [0002] The eye is the "window to the soul" and is a visual organ consisting of eyeballs, visual pathways and subsidiary structures. The eyeball is located in the front part of the orbit and is approximately spherical. The anteroposterior diameter of the normal eyeball is about 16mm at birth, reaches 23mm at the age of 3, and reaches an average of 24mm in adulthood, with a vertical diameter of 23mm and a horizontal diameter of 23.5mm. The eyeball is divided into eyeball wall and eye content. The eyeball wall is divided into three layers. From the inside to the outside, it is the retina, uvea and fibrous membrane. The anterior uvea includes the iris and ciliary body, and the posterior uvea is the choroid. The fibrous membrane consists of The anterior...

Claims

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Application Information

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IPC IPC(8): A61M36/04
CPCA61N5/1017A61N2005/1023A61N2005/1024
Inventor 李忠勇高惠波张文辉张雪峰邓雪松段菲马承伟
Owner HTA CO LTD
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