Thermal ablation needle and application method thereof

An application method and ablation needle technology, which can be used in heating surgical instruments, medical science, surgery, etc., can solve problems such as uncontrollable concentration and defect position, and achieve the effect of improving treatment effect, small volume, and reducing system complexity.

Inactive Publication Date: 2017-11-24
子询(深圳)人工智能研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] NV centers exist in natural diamond, but their concentration and defect location are uncontrollable

Method used

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  • Thermal ablation needle and application method thereof
  • Thermal ablation needle and application method thereof
  • Thermal ablation needle and application method thereof

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] refer to figure 1 As shown, an embodiment of the present invention is a submillimeter-scale tumor thermal ablation needle based on NV color centers, which consists of an ablation needle 1 , an ablation needle shaft 2 and an ablation needle tube 3 . The ablation needle is diamond particles with high NV color center content. The ablation needle 1 is seamlessly bonded to the front end of the ablation needle rod 2 by UV glue or low-melting glass powder, and the ablation rod 2 extends into the matching conical hollow capillary. In the ablation needle tube 3.

[0028] In this embodiment, the ablation needle tube 3 is a tapered hollow capillary steel tube matched with the optical fiber needle shaft 2, and the steel tube can be manufactured by cold pressing or high temperature drawing technology. When fixing the fiber optic needle rod, apply ...

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Abstract

The invention discloses a thermal ablation needle and an application method thereof. The thermal ablation needle comprises an ablation needle head 1, an ablation needle rod and an ablation needle tube. The ablation needle head is made of diamond particles with a high nitrogen vacancy (NV) color center content, and the ablation needle rod is an optical fiber. The ablation needle head adheres to the ablation needle rod in a seamless mode with UV glue or low-melting-point glass powder, and the ablation rod extends into the conical hollow capillary ablation needle tube matched with the ablation rod. Through the optical detection magnetic resonance technology (ODMR), the numerical value of the potential energy D of a crystal field is measured, and the function relation between laser power and the temperature of the ablation needle head is then calculated, so that temperature control is achieved. An NV color center itself can serve as a temperature sensor, and the temperature of the ablation needle head can be measured and controlled in real time. The thermal ablation needle can precisely move between two pieces of tissue by means of an existing CT or ultrasonic image and magnetic resonance imaging system and reach the part needing to be treated more accurately, and the whole thermal ablation needle is small in diameter and low in weight, does not need water cooling, and is simple in system and more flexible.

Description

technical field [0001] The present invention relates to a thermal ablation needle and its application method, especially a submillimeter-scale thermal ablation needle for tumors and diseased tissues, specifically related to the heating phenomenon of NV (Nitrogen Vacancy) color centers under laser excitation for thermal ablation. Ablation needle for ablation. technical background [0002] Local thermal ablation of tumors is an effective treatment for tumors or diseased tissues. It is convenient, safe, and effective, and has the characteristics of small trauma, light complications, and less pain for patients. The focus of the research. Especially in recent years, with the rapid development of medical imaging technology, thermal ablation has become a relatively popular tumor treatment method. [0003] The NV color center is a natural atomic defect in diamond, which is composed of a nitrogen atom and a nearest neighbor vacancy, that is, a nitrogen atom in the diamond crystal r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/04
CPCA61B18/04A61B2018/00005
Inventor 杜关祥胡振忠王永进杨博
Owner 子询(深圳)人工智能研究院有限公司
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