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Tumor thermotherapy device based on implanted coils and parameter optimizing method of tumor thermotherapy device

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

Active Publication Date: 2019-02-22
温州慧电科技有限公司
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  • Application Information

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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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  • Tumor thermotherapy device based on implanted coils and parameter optimizing method of tumor thermotherapy device
  • Tumor thermotherapy device based on implanted coils and parameter optimizing method of tumor thermotherapy device
  • Tumor thermotherapy device based on implanted coils and parameter optimizing method of tumor thermotherapy device

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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 implanted coils and a parameter optimizing method of a tumor thermotherapy device. Heating magnetic particles need to be injected into a human body in a traditional tumor magnetic mediated thermotherapy, and the thermotherapy effect is reduced when the particles are diffused. The tumor thermotherapy device comprises the in-vivo coil andthe in-vitro coil. The in-vitro coil is an open-loop single-ring circular coil. The in-vivo coil is a closed-loop single-ring circular coil. The radius of the in-vitro coil and the radius of the in-vivo coil are r1 and r2 respectively, and the wire radius of the in-vitro coil and the wire radius of the in-vivo coil are rw1 and rw2 respectively, wherein r1 is equal to the root of r2<2> and d<2>, drepresents the wireless transmission distance, and rw1 is larger than or equal to 1 / 10r1 and smaller than or equal to 1 / 6r1. By means of the device, the sustainable thermotherapy effect can be achieved 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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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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