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An adjustable water injection ablation electrode needle

An ablation electrode and adjustable technology, applied in the field of disposable radiofrequency ablation devices, to achieve the effect of clear vision, solving tissue adhesion, and small handle

Active Publication Date: 2019-07-23
ANGEL MEDICAL TECH NANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies of the existing adjustable water injection ablation needles, and design a structurally adjustable one with a clear field of vision, a small handle, and a water pipe that is not prone to breakage, and can improve or solve tissue adhesion caused by high temperature and heat in terms of performance. Adjustable water injection ablation electrode needle

Method used

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  • An adjustable water injection ablation electrode needle
  • An adjustable water injection ablation electrode needle
  • An adjustable water injection ablation electrode needle

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] Such as Figure 1 to Figure 6 , an adjustable water injection ablation electrode needle, comprising: a needle bar 1, a handle 4, an adjustment knob 3, an adjustment sleeve 10, a scale slider 5, a needle bar fixing seat 6, a water pipe fixing seat 7, a water pipe 80, and a radio frequency cable Assembly 8; the handle 4 is in the shape of a hollow tube, with a waist hole 401 on the handle 4, a length adjustment scale 402 printed on the edge of the waist hole 401, and a ring groove 403 on the inner wall of the handle 4 for matching The cylindrical step 303 of the adjustment knob 3 is used to limit the movement of the adjustment knob 3 along the length direction of the handle; the adjustment knob 3 is arranged at the front end of the handle 4, and its external thread 301 part extends into the front end of the handle 4, and the end of the handle 4 is provided with a ...

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Abstract

The invention discloses an adjustable water-injection ablation electrode needle, and belongs to the field of operating instruments for electrosurgery and the field of operating instruments for minimally invasive ablation. The electrode needle comprises a needle rod, a handle, an adjusting knob, an adjusting sleeve, a scale sliding block, a needle rod fixed seat, a water pipe fixed seat, a water pipe and radio frequency cables, wherein the tip end of the needle rod is composed of a triangular blade which is easy for puncture, and a thin hole is formed in the needle rod; an annular groove is formed in the handle, and a length-adjusting graduation ruler is arranged on the edge of the annular groove; an outer screw thread is formed in the adjusting knob, and the adjusting knob is composed of a plurality of edges provided with rounded corners; the adjusting sleeve and the scale sliding block are bonded by virtue of glue; an inner screw thread, which is matched with the adjusting knob, is formed in the scale sliding block; a scale indicating line is printed on the scale sliding block; the needle rod fixed seat and the needle rod are connected by virtue of glue; the water pipe fixed seat and the water pipe are connected by virtue of glue; and the radio frequency cables are welded on the needle rod. The adjustable water-injection type ablation needle disclosed by the invention is convenient to operate and clear in scale, and the ablation needle is convenient for doctors to observe in an operation.

Description

technical field [0001] The invention relates to a disposable radiofrequency ablation device, in particular to a temperature-controlled radiofrequency adjustable water injection ablation electrode needle for radiofrequency ablation treatment of tumors and diseased tissues. Background technique [0002] With the advancement of technology and oncology, radiofrequency ablation has become an effective way to treat cancer. Radiofrequency ablation generally uses local anesthesia. The lesion is located by CT or B-ultrasound scanning. After the electrode needle is inserted into the center of the lesion, the output power of radiofrequency ablation is automatically adjusted by monitoring the changes in the impedance, temperature and other parameters of the lesion tissue. Radiofrequency ablation is the process of rapidly producing large-scale coagulation necrosis in the lesion tissue. At present, there are two methods of radiofrequency ablation, one is internal cooling ablation, that i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/14A61M31/00
CPCA61B18/1492A61B2018/00011A61B2018/0013A61M31/00A61M2202/04A61M2202/0007
Inventor 陈志明李林华盛国云
Owner ANGEL MEDICAL TECH NANJING
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