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Multi-polar microwave ablation needle

A microwave ablation, multi-polar technology, applied in the field of medical equipment, achieves the effect of accurate ablation range and good treatment effect

Inactive Publication Date: 2016-09-07
CANYON MEDICAL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, only ablation needles of different lengths are selected according to the shape of tumor tissue for ablation treatment

Method used

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  • Multi-polar microwave ablation needle
  • Multi-polar microwave ablation needle
  • Multi-polar microwave ablation needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] Such as figure 1 , the present invention includes a multi-pole needle tip 1, an insulating medium 2, a microwave coaxial cable 3.1, a high-frequency joint 3.2, a water outlet joint 4.1, a water outlet capillary 4.2, a water outlet pipe 4.3, a water inlet pipe threaded joint 5, a water inlet joint 5.1, a water inlet Capillary 5.2, water inlet pipe 5.3, ablation needle tube 6, outer tube 6.1, water cavity 7, temperature sensor 8.1, temperature terminal 8.2, handle 10 and sliding handle 11;

[0030] Such as figure 2 , including an outer tube 13, a fixed handle 12, a protrusion 9a and a groove 12a, the multipolar needle point 1 includes more than one needle point, the interior of the distal end of the ablation needle tube 6 is provided with an insulating medium 2, and the multipolar needle point is fixedly connected On the insulating medium 2, the outer ring of the distal end of the ablation needle tube 6 is provided with an outer tube 13, and the proximal end of the oute...

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PUM

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Abstract

The invention provides a multi-polar microwave ablation needle, which comprises a multi-polar needle tip, a microwave coaxial cable and a fixed handle, wherein the multi-polar needle tip includes more than two needle tips; the multi-polar needle tip is fixedly connected to the microwave coaxial cable; a sliding handle, which is capable of sliding along the fixed handle, is arranged on the outer layer of the fixed handle; an outer tube, which covers the multi-polar needle tip, is fixedly connected to the far end of the sliding handle; both the multi-polar needle tip and the microwave coaxial cable are arranged in the outer tube; the sliding handle moves towards the far end and the outer tube moves away from the port, so that the multi-polar needle tip is folded; and the sliding handle moves towards the near end and the outer tube moves, so that the multi-polar needle tip is freely released and expanded. A strip-shaped groove is formed in the fixed handle; a bump is arranged at the near end of the sliding handle; and the bump on the sliding handle moves along the interior of the groove in the fixed handle.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a multipolar microwave ablation needle. Background technique [0002] Microwave ablation is a highly efficient, rapid, uniform heating, thorough thermal coagulation, easy to use and safe treatment method for tumor tissue. It has been widely used in clinic for many years. With the deepening of clinical practice, clinical requirements for microwave ablation needles (microwave radiation antenna) are also getting higher and higher. In the prior art, only ablation needles of different lengths are selected according to the shape of the tumor tissue for ablation treatment. However, ablation needles of different shapes are not selected according to the shape of the tumor tissue, especially for the treatment of small organ tumors, which requires a more precise ablation range. Contents of the invention [0003] Purpose of the invention: The technical problem to be solved by the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/18
CPCA61B18/1815A61B2018/00011A61B2018/1823A61B2018/1869A61B2018/1876
Inventor 武晓泓王毅
Owner CANYON MEDICAL INC