A tumor thermal ablation device based on non-contact power supply

Abstract

The invention discloses a tumor thermal ablation device based on non-contact power supply. The device includes: an electromagnetic generating device, a transmitting coil, a receiving coil and an electric heating element; the output end of the electromagnetic generating device is connected with the transmitting coil, and the electromagnetic generating device is used to generate electromagnetic energy and transmit the electromagnetic energy to the transmitting coil; the receiving coil is connected to the transmitting coil Coils are arranged correspondingly to receive electromagnetic energy emitted by the transmitting coil and convert the electromagnetic energy into electrical energy; the output end of the receiving coil is connected to the electric heating element; when tumor thermal ablation is performed, the electric heating element is arranged in the tumor area to be treated. The tumor thermal ablation device based on non-contact power supply of the present invention adopts non-contact power supply technology, directly introduces electric energy to the tumor tissue site, and realizes thermal ablation of tumor tissue through temperature-controlled heating of electric heating elements; accurate positioning can be realized within the minimally invasive scale , Good conformability, uniform and adjustable thermal field distribution, less trauma to the human body, and less damage to normal tissues.

Description

technical field [0001] The invention relates to the technical field of biomedical electronics, in particular to a tumor thermal ablation device based on non-contact power supply. Background technique [0002] Malignant tumors have the characteristics of high incidence and high recurrence rate, and have become one of the major diseases that threaten human health. Traditional tumor treatment methods include surgical resection, radiotherapy and chemotherapy. In recent years, with the rapid development of biomedical engineering technology, tumor thermal ablation technology has successfully realized the clinical application of tumor treatment, opening up a new way for tumor treatment. [0003] Tumor thermal ablation is a kind of in situ inactivation aimed at one or more specific tumor lesions in an organ or tissue, using physical methods to heat the tissue to produce biological effects, directly leading to irreversible damage or coagulation necrosis of tumor cells technology. ...

AI Technical Summary

Problems solved by technology

[0004] The ablation technology using radio frequency as the heat source occurs in the form of electric current. The conductivity and impedance of the tissue limit the ablation range. It is greatly affected by carbonization, dry tissue and heat deposition effects, and the formed thermal field is unevenly distributed and poorly controllable.

The ablation technology using microwaves as the heat source directly transmits energy to the tumor area in the form of microwave transmission, which is greatly affected by the penetration depth of the tissue. At the same time, it is easy to cause thermal damage to normal tissues outside the target area. In addition, the method is not well-equipped and the effect is unstable.

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