A cold cycle ablation needle system

An ablation needle and cold cycle technology, which is applied in medical science, surgery, parts of surgical instruments, etc., can solve problems such as unsatisfactory temperature control of ablation needles, sticking of needle rods and needle tips, rapid heating of ablation needles, etc., to achieve protection Normal tissue and function, avoid charring, fast-acting results

Active Publication Date: 2019-01-11
ANGEL MEDICAL TECH NANJING
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The temperature control effect of the existing ablation needle at the working site is not ideal, resulting in rapid temperature rise of the ablation needle, which is not easy to control, adhesion of the needle shaft and needle tip, and damage to surrounding organs. The reactions include slight burning pain during the operation, postoperative Low fever etc.

Method used

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  • A cold cycle ablation needle system
  • A cold cycle ablation needle system
  • A cold cycle ablation needle system

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with accompanying drawing:

[0037] Such as Figure 1 to Figure 13, a cold cycle ablation needle system, including a needle tip (1), a needle bar (2), a capillary (3), a thermocouple sensor wire (4), a heat shrinkable tube (5), a needle bar holder (7), and a handle Housing (8), water pipe fixing seat (10), water outlet pipe (11), water inlet pipe (12), electrode connector (14), radio frequency line (16) and temperature compensation wire (17), the needle tip (1) Located at the front end of the needle bar (2), the rear end of the needle bar (2) is connected with the needle bar fixing seat (7), the needle bar (2) is covered with a heat-shrinkable tube (5), and the needle bar (2) is a hollow structure, There is a capillary (3) inside, and there is a gap between the outer wall of the capillary (3) and the inner wall of the needle bar (2). The thermocouple sensor wire (4) is arranged inside the capillary (3...

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Abstract

A cold-circulation ablation needle system is characterized by comprising a needle point (1), a needle bar (2), a capillary (3), a thermocouple sensor lead (4), a heat shrink tube (5), a needle bar fixing seat (7), a handle casing (8), a water pipe fixing seat (1), a water outlet pipe (11), a water inlet pipe (12), an electrode contract (14), a radio frequency line (16) and a temperature compensation lead (17), wherein the needle point (1) is located at the front end of the needle bar (2), the back end of the needle bar (2) is connected with the needle bar fixing seat (7), and the needle bar (2) is sleeved with the heat shrink tube (5) and adopts a hollow structure. A cold sterile water circulation structure is adopted in an electrode of the cold-circulation ablation needle system, the highest energy deposition is obtained in an ablation area, impedance rising of surrounding tissue is effectively reduced, and carbonization is avoided.

Description

technical field [0001] The invention relates to the field of minimally invasive medical devices, in particular to a cold cycle ablation needle system. Background technique [0002] The ablation needle is not a needle, it is a very thin radio frequency energy output electrode. The specific method is: under the guidance of B-ultrasound or CT, the ablation needle is directly punctured into the tumor site. When the temperature reaches about 60 degrees, the protein of cancer cells denatures and coagulates, leading to irreversible necrosis. At the same time, it has very little impact on other tissues, improves the immunity of the patient's body, and inhibits the spread of tumor cells. [0003] Ablation needles are widely used in liver cancer, lung cancer, uterine fibroids, bone cancer, kidney cancer, etc. Cancer, pancreatic cancer, thyroid tumors, hypersplenism, etc. [0004] The temperature control effect of the existing ablation needle at the working site is not ideal, resul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/12A61B18/14
CPCA61B18/12A61B18/14A61B2018/00011A61B2018/00327A61B2018/00791A61B2018/1425
Inventor 陈志明李林华程先本
Owner ANGEL MEDICAL TECH NANJING
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