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Three-dimensional thermo-acoustic imaging method and device based on miniature patch antenna

A patch antenna, thermoacoustic imaging technology, applied in ultrasonic/sonic/infrasound image/data processing, sonic diagnosis, infrasound diagnosis, etc., can solve the problems of poor mobility, bulkiness, large size, etc. Huge clinical application prospects and the effect of reducing pixel value differences

Active Publication Date: 2021-03-23
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the traditional microwave thermoacoustic imaging uses waveguide radiation and horn antenna to radiate microwaves from the microwave source. However, the waveguide and horn antenna used in traditional thermoacoustic imaging are greatly limited due to their large size, cumbersomeness, and poor mobility. Development of Microwave Thermoacoustic Imaging

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  • Three-dimensional thermo-acoustic imaging method and device based on miniature patch antenna

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Embodiment Construction

[0029] The specific implementation will be further described in detail below with reference to the accompanying drawings, taking pork fat as a breast phantom as an example. In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

[0030] Referring to Figure-6 of the present invention, the overall device of the present invention includes a mechanical arm pillar, a mechanical arm, a waveguide to a coaxial...

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Abstract

The invention provides a three-dimensional thermo-acoustic imaging method and device based on a miniature patch antenna. The device comprises a mechanical arm, a pulse microwave source, a waveguide-coaxial adapter, coaxial cables, a mammary gland shaper assembly, Vivaldi antennas, and a thermo-acoustic collection assembly, wherein the thermo-acoustic collection assembly comprises a data collectionassembly and a data processing assembly, the data collection assembly comprises an ultrasonic transducer, a low-noise amplifier and a 64-path data collection assembly, and a mammary gland shaper comprises a polystyrene acoustic transmission assembly and a stepping motor assembly. The method is improved in a microwave radiation antenna for thermo-acoustic imaging, and is different from a traditional microwave radiation mode of a thermo-acoustic imaging antenna, the radiation antenna of the device adopts the different-plane Vivaldi antennas, the different-plane Vivaldi antennas have the characteristics of high power capacity, light and thin size and high practicability, and can conveniently perform three-dimensional thermo-acoustic imaging on mammary glands, after the Vivaldi antennas are placed on the two sides of the long edge of an ultrasonic transducer, the size of the device is greatly reduced, and industrialization and clinical application of a thermo-acoustic technology can be promoted.

Description

technical field [0001] The invention relates to the technical field of microwave thermoacoustic imaging, and proposes a three-dimensional thermoacoustic imaging method and device based on a miniature patch antenna. Background technique [0002] The phenomenon that a substance absorbs electromagnetic waves and converts them into heat energy causes local thermal expansion, and then generates sound waves, which is called the thermoacoustic effect. Microwave thermoacoustic imaging is a non-invasive, non-ionizing imaging technique with high penetration depth, high temporal and spatial resolution. Microwave thermoacoustic imaging technology radiates microwaves to biological tissues in a pulsed manner through non-ionizing radiation. Biological tissues will absorb microwave electromagnetic energy and produce instantaneous thermal expansion. During thermal expansion, pressure waves, namely ultrasonic waves, will be generated around the tissue. Diffusion, the generated ultrasonic wav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0507A61B8/08
CPCA61B8/0825A61B8/403A61B8/4281A61B5/0507A61B8/4416
Inventor 覃欢任明洋郉达
Owner SOUTH CHINA NORMAL UNIVERSITY
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