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Double-frequency focused ultrasound system

A focused ultrasound and ultrasound transducer technology, applied in the field of medical devices, can solve the problems of poor spatial directivity of low-frequency ultrasound, insignificant mechanical effects, limited tissue vibration, etc., to improve accuracy and effectiveness, shorten treatment time, and improve accuracy. The effect of functional targeting

Active Publication Date: 2012-11-28
RONGHAI SUPERSONIC MEDICINE EN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Through research on the prior art, the applicant found that: for high-intensity focused ultrasound, it mainly causes high-frequency vibrations in tissues to produce thermal effects and cavitation effects, and its damage effects are obvious but mechanical effects are not obvious; for USAE, due to its ultrasonic beam The energy is low, the tissue vibration caused is limited, and good tissue mechanical characteristics cannot be formed. In addition, low-frequency ultrasound has poor spatial directivity, and cannot stimulate specific points in deep tissues and find lesions, so it is not suitable for tissue mechanical stimulation.
Therefore, neither of the two existing focused ultrasound applications is suitable for mechanical stimulation of living tissue

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0031] figure 1 It is a schematic structural diagram of a dual-frequency focused ultrasound system provided in an embodiment of the present application.

[0032] like figure 1 As shown in the figure, 1 is the patient, and 2 is the target area. The dual-frequency focused ultrasound system includes: an ultrasonic transducer assembly 4, a first power amplifier 43, a second power amplifier 44, a first signal generator 45, a second Signal generator 46, a plurality of signal receiving devices 51 and signal analysis device 52, wherein: the ultrasonic transducer 4 is connected with the first signal generator 45 through the first power amplifier 43, and is connected with the second power amplifier 44 through the second A signal generator 46 is connected.

[0033] The ultrasonic transducer assembly 4 is provided with a first ultrasonic transducer 41 and a second ultrasonic transducer 42 that are confocal to each other, and the output frequencies of the first ultrasonic transducer 41 a...

Embodiment 2

[0040] According to the results of the dual-frequency focused ultrasound diagnosis in the first embodiment above, the location and range of the lesion can be determined, so on the basis of the first embodiment of the present application, the dual-frequency focused ultrasound system can also be used to treat the lesion.

[0041] In the embodiment of the present application, when treating the lesion, according to the diagnostic results of the dual-frequency focused ultrasound diagnostic system, the parameters of the first power amplifier 43 and the second power amplifier 44 are adjusted, and their respective magnifications are changed, so that the The output acoustic power of the first ultrasonic transducer 41 and the second ultrasonic transducer 42 increases, in the embodiment of the application, preferably, the output acoustic power of the first ultrasonic transducer 41 and the second ultrasonic transducer 42 At 100-500w, this can make the sound intensity at the focal point rea...

Embodiment 3

[0044] image 3 It is a schematic structural diagram of another dual-frequency focused ultrasound system provided in the embodiment of the present application.

[0045] When the patient is diagnosed in Embodiment 1 and the patient is treated in Embodiment 2, when it is necessary to adjust the parameters of the first power amplifier 43 and / or the second power amplifier 44, it can be adjusted manually . In other embodiments, the parameters of the first power amplifier 43 and / or the second power amplifier 44 may also be adjusted in an automatic adjustment manner.

[0046] like image 3 As shown, in the embodiment of the present application, the dual-frequency focused ultrasound system further includes: a signal feedback unit, wherein: the input end of the signal feedback adjustment unit is connected to the output end of the signal analysis device 52, and the output ends are respectively connected to the first power The amplifier 43 and the second power amplifier 44 are connect...

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Abstract

The invention discloses a double-frequency focused ultrasound system. The double-frequency focused ultrasound system comprises an ultrasound transducer component which is provided with a first ultrasound transducer and a second ultrasound transducer, a first power amplifier which is connected with the first ultrasound transducer, a first signal generator which is connected with the first power amplifier, a second power amplifier which is connected with the second ultrasound transducer, a second signal generator which is connected with the second power amplifier, a plurality of signal receiving devices which are contacted with human skin, and a signal analysis device which is connected with a plurality of signal receiving devices, wherein the first ultrasound transducer and the second ultrasound transducer are confocal. By using the principle that the beat frequency is produced by the difference frequency interference, low-frequency vibration with a good mechanical effect is generated in a target area by utilizing two high-frequency sound waves with high space directivity, the mechanical stimulation of tissues and organs is realized, the mechanical stimulation and the tissue ablation are combined through double-frequency focused ultrasound, so that the diagnosis and treatment of lesion sites through the mechanical stimulation are realized.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to a diagnosis and treatment system based on dual-frequency high-intensity focused ultrasound. Background technique [0002] In various life activities of organisms, the stimulation-response-feedback regulation mode is the basic mode of life regulation, in which the force-electricity coupling plays a very important role in this regulation, especially in the heart, brain, nerves, muscles And viscera and other tissues, organs, the role is obvious. Therefore, through mechanical stimulation, triggering and obtaining changes in the electrical activities of tissues and organs, and then clarifying the functional status and location of lesions of tissues and organs plays a very important role in the fields of medical research and clinical diagnosis and treatment. [0003] At present, in medical research and clinical diagnosis and treatment, the mechanical stimulation of t...

Claims

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Application Information

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IPC IPC(8): A61N7/00A61B8/08
Inventor 黄晶曾德平赵纯亮罗真春
Owner RONGHAI SUPERSONIC MEDICINE EN
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