Device for treating tumor by adopting amplitude-modulated electric field

Abstract

The invention discloses a device for treating a tumor by adopting an amplitude-modulated electric field. The device comprises a power supply, a central control unit, a frequency-modulated signal generation unit, an amplitude modulation unit, a power amplification unit, an output distribution unit, insulated electrodes and an insulated electrode positioning system. Under the control of the central control unit, the frequency-modulated signal generation unit generates a required frequency signal; the required frequency signal is modulated through the amplitude modulation unit to generate a required amplitude-modulated wave signal; the amplitude-modulated wave signal is amplified through the power amplification unit and then is distributed to one or more pairs of the insulated electrodes by the output distribution unit; an intensity-variable amplitude-modulated electric field is generated between the one or more pairs of the insulated electrodes. The amplitude-modulated electric field is used as a non-uniform external electric field applied to a focal area to be used for treating the tumor; the device has characteristics of guaranteeing that a tumor cell is stimulated by an intensity-sensitive electric field of the device and avoiding the harm when a low-frequency current is applied to a human body, and the like.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to a device for treating tumors by using an amplitude-modulated electric field. Background technique [0002] Since 1980, electric fields have been widely used in the fields of biology and medicine, including killing microorganisms, cell fusion, gene transformation and tumor treatment. In 2004, Yoram Pati et al. found that AC electric fields with a low electric field strength of 1 V / cm to 2 V / cm and medium and low frequencies (100 to 300 KHZ) could selectively inhibit tumor cell proliferation. With the research on the mechanism of tumor treating fields (Tumor Treating Fields, TTF), as a new tumor treatment method, TTF has many potential advantages compared with traditional surgery, radiotherapy and chemotherapy. Wu Qinghui et al. reported: first, TTF places insulated electrodes on the skin around the lesion of malignant tumors, which can cover almost all parts that may become...

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Problems solved by technology

[0011] The purpose of the present invention is to provide a device for treating tumors with amplitude-modulated electric fields. One is to solve the problem that the single treatment effect of the electric field mechanism in the prior art is limited, and the constant electric field intensity cannot ensure that the tumor cells are stimulated by the electric field of its sensitive intensity. Once the low-frequency electric field frequency is mainly low-frequency current is applied to the human body, it will cause accidental injury and other problems

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