Device for laser interstitial thermotherapy system

A laser and hyperthermia technology, used in phototherapy, parts of surgical instruments, medical science, etc., can solve the problems of cumbersome processing of colloids, thermal expansion and denaturation, and bursting.

Active Publication Date: 2020-05-08
SINOVATION BEIJING MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, people have been making continuous efforts towards the goal of radially emitting laser light. Some people have proposed to use colloids containing different scattering particles to achieve this goal. However, in actual use, the processing of colloids is cumbersome and cannot obtain higher Product consistency, colloids cannot withstand excessively high temperatures, resulting in the inability of the scattering head to be heated to a higher temperature, and there is a risk of thermal expansion, denaturation or even bursting, so it is necessary to have a small or negligible volume change within the use temperature range Regardless, light-emitting devices that can withstand higher temperatures reduce the safety risk of devices used in laser interstitial hyperthermia systems

Method used

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  • Device for laser interstitial thermotherapy system
  • Device for laser interstitial thermotherapy system
  • Device for laser interstitial thermotherapy system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] refer to figure 1 , shows a schematic diagram of a device for a laser interstitial hyperthermia system according to an embodiment of the present invention, a device 10 for a laser interstitial hyperthermia system includes a connector 11, an optical fiber 12, a sleeve 13, and a light steering Section 14. The shape and structure of the connector 11 is only schematic, and any structure or model that can complete the connection with the laser generator or other connectors is acceptable. The length of the optical fiber 12 can be adjusted as required, and the optical fiber can be any suitable type of optical fiber, as long as it can be sealed with the sleeve 13. Preferably, the optical fiber is a silica glass optical fiber, and the connection can be realized by discharge fusion. The sleeve 13 is made of a suitable light-transmitting material, and is sealed and connected with the optical fiber and the light turning part 14. Preferably, the connection can be realized by discha...

Embodiment 2

[0055] image 3 is a cross-sectional view along the axial direction of another specific example of Part I, wherein the light redirecting portion 14 includes scattering particles, and the scattering particles may be metal particles, oxide particles, air bubbles, and the like. The optical fiber includes a core 121 , a cladding 122 and a protective layer 123 . The sleeve 13 is connected to the cladding 122, and the connection interface is shown by thick lines, and the light redirecting part 14 is connected to the sleeve 13, and the connection interface is shown by thick lines. Four cross-sections A-A, B-B, C-C and D-D are shown at the same time, and those skilled in the art can understand that, for convenience of description, they are not shown in scale. The angle of the cone portion of the light turning portion 14 is a, and the angle a can be selected according to needs, and the preferred range is 15° to 150°, such as 30°, 45°, 60°, so that the cone portion can have different l...

Embodiment 3

[0060] refer to Figure 4 , Figure 4 It is a sectional view of part I along the axial direction of another specific example, showing the core 121 , the cladding 122 and the protective layer 123 of the optical fiber. The sleeve 13 is connected to the cladding 122, and the connected interface is shown by a thickened line, and the light turning part 14 is connected to the sleeve 13, and the connected interface is shown by a thickened line; image 3 The difference is that the angle b of the cone portion of the light turning portion 14 is different from the angle a in Embodiment 2, and the surface of the cone portion is a diffuse reflection surface, and the change of the light emission direction can pass through the diffuse reflection surface of the cone portion It is realized by cooperating with the scattering particles contained in the light redirecting part.

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Abstract

The invention provides a device for a laser interstitial thermotherapy system and a manufacturing method of the device. The device for the laser interstitial thermotherapy system comprises a light turning part capable of realizing turning emergence of light. The device can be applied to interstitial thermal ablation therapy and resists high temperature, and a finished product is stable in properties and easy to store. The invention further provides the manufacturing method of the device for the laser interstitial thermotherapy system.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a device used in a laser interstitial hyperthermia system. Background technique [0002] Since the beginning of the 1980s, the research on the laser interstitial hyperthermia system to treat diseases such as tumors and epilepsy has made great progress. In recent years, people have been making continuous efforts towards the goal of radially emitting laser light. Some people have proposed to use colloids containing different scattering particles to achieve this goal. However, in actual use, the processing of colloids is cumbersome and cannot obtain higher Product consistency, colloids cannot withstand excessively high temperatures, resulting in the inability of the scattering head to be heated to a higher temperature, and there is a risk of thermal expansion, denaturation or even bursting, so it is necessary to have a small or negligible volume change within the use tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/22
CPCA61B18/22A61B2018/2222A61B2018/2261A61N2005/063A61N2005/0612
Inventor 刘文博韩萌孙浩
Owner SINOVATION BEIJING MEDICAL TECH CO LTD
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