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Injection type aciculiform microwave antenna for tumor ablation treatment

An injection type, microwave technology, applied in the field of medical devices, can solve the problems of poor tumor ablation effect and small range of microwave ablation needles, and achieve the effect of being suitable for industrial production, improving ablation efficacy, and expanding the ablation range

Inactive Publication Date: 2014-07-02
NANJING VISON CHINA MEDICAL DEVICES R & D CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] One of the objectives of the present invention is to address the above-mentioned shortcomings and provide an injection-type microwave needle antenna for tumor ablation therapy, in order to solve the small range of ablation damage caused by microwave ablation needles in the prior art due to excessively high operating temperature. The ablation shape is not close to the spherical shape and the ablation effect on the tumor is not good and other technical problems

Method used

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  • Injection type aciculiform microwave antenna for tumor ablation treatment
  • Injection type aciculiform microwave antenna for tumor ablation treatment
  • Injection type aciculiform microwave antenna for tumor ablation treatment

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Embodiment Construction

[0024] The present invention will be further elaborated below in conjunction with the accompanying drawings.

[0025] refer to figure 1 As shown, one embodiment of the present invention is an injection-type microwave needle antenna for tumor ablation therapy. In this strength, a radiator 1 needs to be set in the needle antenna, and a needle antenna is installed on the radiator 1. Radiator cover 15, radiator 1 is installed on the front end of needle bar 2, and the rear end of needle bar 2 is also equipped with radio frequency coaxial connector 3; The inside of aforementioned needle bar 2 is also provided with coaxial cable 4, adopts this The coaxial cable 4 is respectively connected to the radiator 1 and the radio frequency coaxial connector 3, and is used to connect the microwave generating source through the radio frequency coaxial connector 3, and the microwave generated by the microwave generating source passes through the radio frequency coaxial connector 3 and the coaxial...

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Abstract

The invention discloses an injection type aciculiform microwave antenna for tumor ablation treatment and belongs to medical instruments of tumor ablation treatment. The injection type aciculiform microwave antenna comprises a radiator, an aciculiform radiator case is mounted on the radiator, the radiator is mounted at the front end of a needle rod, a radio-frequency coaxial connector is mounted at the rear end of the needle rod, and a coaxial cable is arranged in the needle rod. A water inlet channel and a water outlet channel are arranged in the needle rod, the water outlet channel is communicated with a water outlet structure of the tail end of the needle rod and further provided with capillary tubes for injection, and micropores communicated with the capillary tubes are arranged on the needle rod and near the radiator. During microwave ablation, the capillary tubes are used for injecting saltwater, carbonizing probability at the high temperature due to overhigh power at the front end of the needle rod is decreased, ablation range is enlarged, and ablation curative effect is effectively improved. Meanwhile, the injection type aciculiform microwave antenna for tumor ablation treatment is simple in structure, applicable to industrialized production and easy to popularize.

Description

[0001] technical field [0002] The invention relates to a medical device for tumor ablation therapy, more specifically, the invention mainly relates to an injection type microwave needle antenna for tumor ablation therapy. [0003] Background technique [0004] With the advancement of tumor treatment science, considerable progress has been made in clinical microwave ablation of tumors in recent years. Microwave ablation is the use of microwave energy to act on the tissue to immediately produce a thermal effect. Within a few minutes, a stable spherical heat field is formed. The center temperature is greater than 100°C and the edge is greater than 60°C. The tumor tissue is instantly coagulated and inactivated at high temperature, and then Gradually ablate to achieve the therapeutic purpose. Due to its high safety, small trauma and controllable effect on tissue, microwave ablation technology is more and more respected by doctors, and it will become the first choice of tumor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/18
Inventor 郑加生张鹏杨婷
Owner NANJING VISON CHINA MEDICAL DEVICES R & D CENT
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