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Ultrasonic focusing and target point inversion positioning system

A technology of ultrasonic focusing and positioning system, which is applied in ultrasonic therapy, ultrasonic/sonic/infrasonic diagnosis, structure of ultrasonic/sonic/infrasonic diagnostic equipment, etc., and can solve problems such as inability to accurately focus on real-time imaging of targets

Active Publication Date: 2020-03-27
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of this application is to provide an ultrasonic focusing and target point inversion positioning system, aiming at solving the problem of inability to accurately focus on the target point and realize real-time imaging in the prior art

Method used

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  • Ultrasonic focusing and target point inversion positioning system
  • Ultrasonic focusing and target point inversion positioning system

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Embodiment 1

[0057] This application provides an ultrasonic focusing and target inversion positioning system, which is applied to medical hyperthermia when the measured object is a biological tissue. Refer to figure 2 The method and system for ultrasonic focusing and target inversion positioning provided by this application include: a signal generator 1; a power amplifier 2; a water-immersed spherical ultrasonic transducer 3; a measured object 4; an infrared thermometer 5; a computer 6; holding device 7;

[0058] The signal generator is used to receive the required input waveform and frequency, and transmit the electrical signal sent out to the power amplifier through the output channel of the signal generator.

[0059] In this embodiment, the output channel of the signal generator 1 is connected to the input terminal of the power amplifier 2. Pay attention to adjust the impedance of the power amplifier to be consistent with the signal generator 1, so that the electrical signal can be smo...

Embodiment 2

[0070] The present application also provides a method and system for ultrasonic focusing and target inversion positioning. The measured object is biological tissue, which is applied to medical ablation (for example, tumor ablation). figure 2 , the ultrasonic focusing and target inversion positioning method and system provided by the application include: a signal generator 1; a power amplifier 2; a spherical ultrasonic transducer 3; a measured object 4; an infrared thermometer 5; a computer 6; device 7;

[0071]The signal generator 1 is used to receive the required input waveform and frequency, and transmit the emitted electrical signal to the power amplifier 2 through the output channel of the signal generator.

[0072] In this embodiment, the output channel of the signal generator 1 is connected to the input terminal of the power amplifier 2 , and the impedance of the power amplifier 2 should be adjusted to be consistent with that of the signal generator 1 . Modulate the ar...

specific Embodiment approach

[0083] This application provides a method and system for ultrasonic focusing and target point inversion positioning. The measured object is a workpiece, which can also be applied to engineering defect detection. Secondary heat generation occurs and a new heat source is formed. The position and size of the heat source can correspond to the position and size of the defect; among them, the focus of the focused ultrasound is regarded as a heat source (load source), so that the thermal signal or acoustic signal is in contact with the workpiece defect. When it works, heat is generated to form a new heat source, and defects can be found by judging the position of the new heat source. refer to figure 1 , the specific implementation is as follows:

[0084] The signal generator 1 is used to receive the required input waveform and frequency, and transmit the electrical signal sent to the power amplifier 2 through the output channel of the signal generator.

[0085] In this embodiment, ...

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Abstract

The invention discloses an ultrasonic focusing and target point inversion positioning system, belongs to the field of ultrasonic monitoring, and is used for solving problems that a focusing target point cannot be accurately detected and real-time imaging cannot be realized in the prior art. According to the system, a signal generator, a power amplifier and a spherical ultrasonic transducer are used to form an ultrasonic focusing target point with enough heat generation in a measured object (a biological tissue or a workpiece); an infrared thermometer is used for monitoring and recording a monitored surface temperature of the measured object in real time; a BP neural network solver is used for calculating and inverting to obtain a corresponding position and a corresponding size of the target point; and finally, the infrared thermometer and a clamping device with a position regulator are combined to realize real-time monitoring and position adjustment of the ultrasonic focusing target point.

Description

technical field [0001] The present application relates to the field of ultrasonic monitoring, in particular to an ultrasonic focusing and target inversion positioning system. Background technique [0002] At present, B-ultrasound, nuclear magnetic resonance and other methods are usually used in medicine for biological imaging and focused target analysis. B-ultrasound detection uses ultrasound as the detection source, and the interface image of the corresponding area is obtained through the analysis of the reflected signal, but the ultrasonic signal generated by it will be coupled with the ultrasonic signal of the focused ultrasound, which will directly affect the imaging results of B-ultrasound. Focus target identification deviation, and because B-ultrasound can only detect the interface information of materials with different acoustic impedances, B-ultrasound cannot detect focused targets for materials with low thermal sensitivity of acoustic impedance. Although nuclear ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00G01J5/00A61N7/02
CPCA61B8/44G01J5/00G01J5/0025A61N7/02A61B8/4483G01J2005/0077A61N2007/0004G01J5/48
Inventor 杜智博陈豪龙柳占立庄茁
Owner TSINGHUA UNIV
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