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Intracavity radiotherapy device and using method thereof

A technology of inner diameter and radiating particles, applied in radiation therapy, X-ray/γ-ray/particle irradiation therapy, treatment, etc., can solve the problems of increasing implantation difficulty, high manufacturing cost, adjusting the position of radiation particles, etc. Accuracy, lower manufacturing cost, lower manufacturing cost effect

Active Publication Date: 2020-11-27
NANJING RONGSHENG MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in bulky scaffolds loaded with particles and increased difficulty in implantation
Moreover, because the radiation particles are loaded in advance, the position of the radiation particles cannot be adjusted accordingly according to the individual condition of the patient, so it is difficult to accurately place them in the best position for intracavitary radiotherapy
Furthermore, the existing capsule-filled or bound intracavity radiotherapy devices cannot realize fully automatic production or the production process is complicated, resulting in low production efficiency
Therefore, the existing intracavity radiotherapy device has high manufacturing cost, which is not conducive to wide application

Method used

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  • Intracavity radiotherapy device and using method thereof
  • Intracavity radiotherapy device and using method thereof
  • Intracavity radiotherapy device and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0048] like figure 1 As shown, the first embodiment of the present invention uses a biliary tract stent as an example to introduce the intracavity radiotherapy device 1 provided by the present invention. The intracavity radiotherapy device 1 includes a body 2 and a radiation particle tank 3 , wherein radiation particles 4 for radiotherapy are arranged in the radiation particle tank 3 .

[0049] Specifically, the main body 2 is made of nickel-titanium alloy wire, and is roughly a hollow cylindrical wire mesh that runs through front and back, and has an axis X. combine figure 2 Viewed along the axial direction, the body 2 includes a plurality of body parts 20, and each body part 20 is roughly surrounded by four arc-shaped nickel-titanium alloy wire body units 21 with the same radius to form a circle. The plurality of body parts 20 are arranged in parallel (substantially parallel) along the axis X of the body 2 . In other words, from figure 2 Seen from the cross-section sho...

no. 2 example

[0061] In the intracavity radiotherapy apparatus 1 in the first embodiment, each radiation particle slot 3 is evenly distributed along the Y-axis direction. In other words, the troughs 30 parallel to the Y-axis direction are the same, and the cross-section perpendicular to the X-axis of the intracavity radiotherapy device 1 is the same ( figure 2 ).

[0062] However, in this embodiment, any one of the radiating particle slots 3 may be distributed non-uniformly in the axial direction.

[0063] The intracavity radiotherapy device provided in this embodiment has only two grooves 30 ( image 3 ); but there are four grooves 30 ( figure 2 ). Such a design can reduce the size of the intracavity radiotherapy device in front of the axis X, and is suitable for special distribution of lesions.

no. 3 example

[0065] like Figure 4 As shown, in the third embodiment of the present invention, the radiating particle groove 3 protrudes from the surface of the body 2 .

[0066] like Figure 4 As shown, the intracavity radiotherapy device 1' provided in this embodiment includes a body 2 and a radiation particle tank 3, wherein radiation particles 4 for radiotherapy are arranged in the radiation particle tank 3.

[0067] Specifically, the main body 2 is made of nickel-titanium alloy wire, and is roughly a hollow cylindrical wire mesh that runs through front and back, and has an axis X. combine Figure 5 Viewed in the axial direction, the body 2 includes a plurality of body parts 20B that are roughly surrounded by four arc-shaped nickel-titanium alloy wire body units 21B with the same radius, and the plurality of body parts 20B are arranged in parallel (approximately parallel). In other words, from Figure 5 Seen from the cross-section shown, the body unit 21B is a 1 / 4 arc segment, and ...

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Abstract

The invention discloses an intracavity radiotherapy device which is used for bearing radioactive particles or particle strips. The device comprises: a body which is formed by winding a metal wire andis a hollow silk screen which is through from front to back; and a radioactive particle tank, wherein the radioactive particle tank is formed in the outer surface of the body, is a hollow cylindricalsilk screen which is through from front to back and is used for containing radioactive particles or particle strips, the radioactive particle groove comprises a plurality of groove bodies which are arranged in parallel, the distance between every two adjacent groove bodies is smaller than the length of the radioactive particles or particle strips, and the radioactive particle groove and the body are made of a same material and are formed by winding a metal wire, or formed by one-time injection molding of a biodegradable material. According to the intracavity radiotherapy device, the number andthe positions of the radioactive particles can be freely adjusted according to images after a doctor puts the radioactive particles into a body, and the device is slender, softer and low in manufacturing cost.

Description

technical field [0001] The invention relates to an intracavity radiotherapy device and a method for using the intracavity radiotherapy device, belonging to the field of medical radiotherapy instruments. Background technique [0002] Intracavitary radiotherapy refers to the method of entering the lesion site through the natural cavity of the human body (such as the vagina, rectum, esophagus, trachea, bronchus, etc.), and then introducing the radioactive source into the tumor site for radiotherapy. Targeted local radiotherapy can be carried out while the stent is expanded, which can not only reduce the toxic and side effects of whole body radiotherapy, but also have a better effect on the treatment. [0003] The existing intracavitary radiotherapy device is installed with a radioactive particle filling capsule on the surface of the mesh skeleton structure, and the radioactive particle filling capsule can pass through the barbs on the surface of the mesh skeleton structure (rel...

Claims

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Application Information

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IPC IPC(8): A61N5/10
CPCA61N5/1002A61N5/1007A61N2005/1009A61N2005/101A61N2005/1024A61N2005/1025A61N5/1014A61N2005/1018
Inventor 董永华滕皋军纪建松尹华清朱海东郭金和
Owner NANJING RONGSHENG MEDICAL TECH CO LTD
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