Microwave ablation antenna for treating GGO

A technology of microwave ablation and antenna, which is applied in microwave surgical instruments, applications, vaccination and ovulation diagnosis, etc., can solve the problems of difficult to clearly identify GGO, difficult to clearly identify GGO, damage blood vessels and bronchi, and avoid passing through puncture channels and bleeding blood vessels Diffusion, avoiding pulmonary hemorrhage, and increasing the effect of specimen volume

Pending Publication Date: 2022-05-13
MIMA PRO NAN TONG SCI INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both biopsy and ablation use puncture-type needles. The sharp needle tip may damage blood vessels and bronchi. Once the blood vessels are punctured, the outflow of blood will make it difficult for GGO to be clearly identified under the image, which increases the difficulty of the operation.
Moreover, the puncture of the biopsy needle will pierce the entire tissue of GGO, causing the natural barrier between normal tissue and tumor cells to be broken. At the same time, due to bleeding, cancer cells may also enter the blood system and reach other tissues of the body, resulting in spread.
Therefore, compared with thoracoscopic surgery, although this surgical method minimizes the damage to normal lung tissue and brings less pain to the patient, it is difficult to clearly identify the problem of GGO caused by pulmonary hemorrhage and cancer. proliferation risk

Method used

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  • Microwave ablation antenna for treating GGO
  • Microwave ablation antenna for treating GGO
  • Microwave ablation antenna for treating GGO

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, the microwave ablation antenna used to treat GGO in this embodiment has a non-puncturing radiator located at the front end of the antenna, and a radiator cover 2 sleeved on the radiator 1 . The whole radiator cover 2 is made of elastic material. In this example, the radiator cover 2 is made of PI, in addition, it can also be made of polyether ether ketone (PEEK) or zirconium porcelain (non-elastic material). The advantage of using elastic materials is that when the antenna is inserted into the lungs, it will not damage blood vessels or bronchi, and will not cause pulmonary bleeding. Therefore, a better solution is that at least the front end of the radiator cover is made of elastic material, which can meet the design requirements of the present invention. The thickness of the radiator cover is 0.35mm, and the radiator cover is coated with an anti-sticking coating. Of course, since the front end adopts a blunt design (non-puncture type), the...

Embodiment 2

[0031] Such as Figure 4 As shown, the antenna has a radiator 1 made of metal (the front end of the head is a curved surface), a dielectric sleeve 10 set behind the radiator 1 and a needle bar 3 set at the rear end of the dielectric sleeve 10, and the needle bar 3 runs through A coaxial cable is provided, the rear end of the radiator 1 is connected to the inner conductor 5 of the coaxial cable (conductive connection), and an antenna emission window is formed between the rear end of the radiator 1 and the outer conductor 4 of the coaxial cable. The water diversion pipe 12 is arranged between the coaxial cable and the needle bar 3, and its front end is fixed with the water blocking shaft 11. The gap between the water diversion pipe 12 and the coaxial cable forms a water inlet, and the gap between the water diversion pipe and the needle bar forms a return channel.

[0032] The above-mentioned embodiment lists two shapes of the front end of the radiator (flat head and round head)...

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Abstract

The invention relates to a microwave ablation antenna for treating GGO, which is provided with a radiator positioned at the front end of the antenna and a radiator cover sleeved on the radiator, the front end of the radiator cover is a blunt end, the side wall of the radiator cover is provided with a groove, and the groove is arranged close to the radiator. The front end of the radiator cover adopts the blunt end design, so that the antenna can freely pass through lung tissue and cannot puncture blood vessels and bronchus in the lung due to the special non-puncture shape, and the tumor blood vessels existing in the GGO cannot be injured by the blunt head to cause bleeding; the operation failure rate caused by the fact that the focus cannot be recognized due to intra-pulmonary hemorrhage is reduced, and meanwhile the possibility that tumor cells are diffused through a puncture channel and bleeding blood vessels is avoided. The groove is formed in the side wall of the radiator cover, and after GGO ablation is completed, the tissue at the position is in an outward protruding shape, so that the tissue is found more easily, and the accuracy of biopsy sampling is improved.

Description

[0001] This application is a divisional application of CN201810588541.9. The filing date of the original application is 2018.06.08, the application number is 201810588541.9, and the title of the invention is "A Non-Puncture Microwave Ablation Antenna and Its Application". technical field [0002] The invention relates to a microwave ablation antenna and its application, belonging to the technical field of microwave ablation. Background technique [0003] With the advancement of modern technology and oncology, breakthroughs have been made in microwave tumor ablation technology at home and abroad in the past ten years. With the wide application of this truly minimally invasive local treatment of tumors, thermal ablation has become the first-line first-line treatment in clinical treatment guidelines. Liver cancer, lung cancer, and thyroid adenoma are hot spots for microwave ablation. Microwave tumor ablation is to use microwave energy to act on tissues to produce thermal effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/18A61B10/02
CPCA61B10/0233A61B18/1815A61B2018/00541A61B2018/00011A61B2018/1869A61B2018/183A61B2018/1861A61B2018/00577A61B2018/00178A61B2018/00023A61B2018/00589A61B17/3496A61B2017/00862A61B2017/3456A61B2018/00035
Inventor 池嘉昌翟博张鹏杨婷
Owner MIMA PRO NAN TONG SCI INC
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