An ablation instrument and laser ablation needle thereof

A laser ablation and laser technology, applied in the field of medical equipment, can solve the problem of difficult control of the laser ablation area, and achieve the effect of easy control and expansion of the ablation area

Pending Publication Date: 2019-01-04
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a laser ablation needle whose structural design can effectively solve the problem that the laser ablation area is difficult to control

Method used

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  • An ablation instrument and laser ablation needle thereof
  • An ablation instrument and laser ablation needle thereof
  • An ablation instrument and laser ablation needle thereof

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Embodiment Construction

[0030] The object of the present invention is to provide a laser ablation needle whose structural design can effectively solve the problem that the laser ablation area is difficult to control. The present invention also provides an ablation instrument comprising the above-mentioned laser ablation needle.

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", ...

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Abstract

The invention discloses an ablation instrument and a laser ablation needle thereof. The laser ablation needle comprises a conical needle, of which the material is transparent material; a needle tube,wherein a head end of the needle tube is sealingly connected with the tapered needle head and an optical fiber interface is arranged at the end, and an optical fiber is arranged inside the needle tube; a light diffuser disposed inside the needle tube and configured to diffuse laser light before entering the tapered needle. The adjuster can adjust the incident angle of the laser beam entering the diffuser to adjust the scattering angle of the light emitted from the diffuser, and the laser beam passes through the adjuster, the diffuser and the conical needle to reach the lesion site in turn. Theadjuster can adjust the incident angle of the laser beam entering the diffuser to adjust the scattering angle of the light emitted from the diffuser. The structure design of the laser ablation needlecan effectively solve the problem that the ablation area of the laser is difficult to control.

Description

technical field [0001] The invention relates to the technical field of medical devices, and more specifically, to an ablation instrument and a laser ablation needle thereof. Background technique [0002] In image-guided minimally invasive interventional surgery, laser ablation can be used to treat epilepsy, Parkinson's, cancer and other diseases. The principle of laser ablation is to insert a laser needle into the lesion site or a certain distance away from the lesion tissue. Traditionally, the ablation area is controlled by adjusting the output energy of the laser ablation device, so as to increase or decrease the intensity of laser irradiation to heat up the lesion tissue. When the temperature of the lesion tissue exceeds 60°C for 10 minutes, the lesion tissue will undergo irreversible necrosis, thereby achieving the purpose of ablation. [0003] However, by adjusting the output energy of the laser ablation instrument to change the ablation area of ​​the laser, the power...

Claims

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Application Information

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IPC IPC(8): A61B18/22A61B18/20
CPCA61B18/20A61B18/22A61B2018/2005A61B2018/2261
Inventor 罗鹏辉周玉福张晴黄晓燕祁甫浪甄博文王萍萍王长亮邱本胜
Owner UNIV OF SCI & TECH OF CHINA
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