A tumor hyperthermia device based on an implanted coil and its parameter optimization method

An optimization method and tumor technology, applied in the field of biomedical electronics, can solve the problems of reduced effect, dependence on the effect of hyperthermia, secondary damage, etc., and achieve the effect of reducing heat loss and high wireless transmission efficiency

Active Publication Date: 2020-10-16
温州慧电科技有限公司
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Problems solved by technology

Although the injection of magnetic particles is a less invasive method, the effect of hyperthermia depends on the dose of magnetic particles, and the effect of hyperthermia will decrease as the particles diffuse, and the diffusion of magnetic particles It is easy to cause secondary injury after reaching other parts of the human body

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  • A tumor hyperthermia device based on an implanted coil and its parameter optimization method
  • A tumor hyperthermia device based on an implanted coil and its parameter optimization method
  • A tumor hyperthermia device based on an implanted coil and its parameter optimization method

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Embodiment Construction

[0046] The present invention will be further described below in conjunction with accompanying drawing.

[0047] Such as figure 1 As shown, a tumor magnetically mediated hyperthermia device based on an implanted coil includes a signal generator, an internal coil 2 and an external coil 1 . The extracorporeal coil 1 is an open-loop single-turn circular coil (that is, one place is disconnected). The two disconnected terminals of the external coil 1 are respectively connected to the signal output terminal and the ground terminal of the signal generator. The internal body coil 2 is a closed-loop single-turn circular coil (that is, the internal body coils are connected end to end). The radii of external coil 1 and internal coil 2 are r 1 and r 2 , the wire radius used is r w1 and r w2 . The coil in the body adopts biometal material (titanium alloy is used in this embodiment). r 2 Equal to 1 / 5 of the diameter of the tumor to be implanted. r 2 with r w2 satisfy the equation...

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Abstract

The invention discloses a tumor thermotherapy device based on an implanted coil and a parameter optimization method thereof. In traditional tumor magnetic-mediated thermotherapy, it is necessary to inject heat-producing magnetic particles into the human body; and as the particles diffuse, the effect of hyperthermia decreases. The invention relates to a magnetically mediated hyperthermia device for tumors based on implanted coils, which includes internal coils and external coils. The extracorporeal coil is an open-loop single-turn circular coil. The internal body coil is a closed-loop single-turn circular coil. The radii of the external coil and the internal coil are r 1 and r 2 , the line radius is r w1 and r w2 . Among them, d is the wireless transmission distance. The invention can achieve the effect of sustainable hyperthermia on tumors.

Description

technical field [0001] The invention belongs to the technical field of biomedical electronics, and in particular relates to a heating efficiency optimization method based on implanted coil tumor magnetic-mediated hyperthermia. Background technique [0002] The traditional magnetic-mediated heat therapy for tumors is a kind of direct injection, intravenous injection or intervention to make heat-generating materials gather at the tumor site, and under the action of an alternating magnetic field, a magnetic-induced heat-generating effect occurs to heat the tumor tissue to 41 °C. A method for treating tumors above ℃. Magnetic nanoparticles or microparticles are currently widely used as a heat-generating medium. Although the injection of magnetic particles is a less invasive method, the effect of hyperthermia depends on the dose of magnetic particles, and the effect of hyperthermia will decrease as the particles diffuse, and the diffusion of magnetic particles It is easy to cau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F7/00A61N2/00
CPCA61F7/00A61F2007/009A61N2/00
Inventor 程瑜华陈国雄王高峰李文钧
Owner 温州慧电科技有限公司
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