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Ultrasonic processing apparatus comprising means for imaging cavitation bubbles

A technology of cavitation bubbles and equipment, which is applied in the directions of ultrasonic/sonic/infrasonic equipment control, ultrasonic therapy, ultrasonic/sonic/infrasonic diagnosis, etc. Accurately identify problems such as cavitation bubble cloud boundaries

Active Publication Date: 2021-03-26
CARDIAWAVE +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the duration of the wave train, it is impossible to precisely identify the position of the bubble cloud
[2] propose a method for computing backscattered energy maps with a resolution equal to the wavelength used, but this does not allow precise identification of cloud boundaries
As in Refs [2], [3] and [4], this method uses long pulses and does not allow accurate identification of the boundaries of cavitation bubble clouds

Method used

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  • Ultrasonic processing apparatus comprising means for imaging cavitation bubbles
  • Ultrasonic processing apparatus comprising means for imaging cavitation bubbles
  • Ultrasonic processing apparatus comprising means for imaging cavitation bubbles

Examples

Experimental program
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Embodiment Construction

[0043] figure 1 The device comprises an imaging ultrasound transducer UID arranged in the center of a treatment transducer ATA consisting of a set of preferably between 5 and 20 annular consists of elementary transducers arranged in an aligned and concentric manner on a spherical bowl SB that focuses ultrasound. The imaging transducer UID is located in the center of the innermost ring of therapy transducers.

[0044] A transducer UID includes a plurality of ultrasonic detection elements arranged in a one-dimensional (typically linear) or two-dimensional, periodic or aperiodic array. For example, it may be a two-dimensional echographic probe comprising an array of 64 elements.

[0045]The imaging transducer UID is fastened to the mount F, allowing it to be connected to a robotic arm (not shown), which is connected to the therapy transducer by a mechanical linkage ML, allowing relative rotational movement about the axis Ox (labeled PJ as pivot joint). Thus, the orientation o...

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Abstract

An ultrasonic processing apparatus comprising: an ultrasonic therapy transducer (ATA) adapted to generate focused ultrasonic waves; an ultrasonic imaging transducer (UID) connected to the ultrasonic therapy transducer; and an electronic system configured to: control the ultrasonic therapy transducer so as to emit a pulse train of ultrasonic waves generating a cloud of cavitation bubbles (BC); control the ultrasonic imaging transducer so as to acquire at least one image of the region to be processed; acquire a plurality of echo signals of ultrasonic wave pulses emitted by the ultrasonic therapytransducer captured by the ultrasonic imaging transducer and process them so as to reconstruct an image of the cloud of cavitation bubbles, the processing including spatio-temporal filtering; and display said image of the cloud of cavitation bubbles superposed on said image of the region to be processed.

Description

technical field [0001] The invention relates to a device for providing therapy of the human or animal body by means of ultrasound. The device is particularly suitable for the treatment of mobile organs (ie typically abdominal and thoracic organs) by high intensity focused ultrasound (HIFU), tissue destruction, lithotripsy, thrombus destruction, etc. Background technique [0002] Tissue destruction is a technique that mechanically destroys tissue by focused ultrasound pulses that generate cavitation bubbles / bubbles (also called "cavitation bubble clouds" for simplicity). The use of tissue destruction to treat various lesions is a promising alternative to high-risk surgery. Cavitation allows undesired tissue in a highly controlled focused area to be destroyed non-invasively and without thermal effects. However, the human body is a very heterogeneous / inhomogeneous medium, and the fact that treatments are performed in vivo without direct visual feedback makes it crucial to mon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N7/00A61B17/225
CPCA61B17/225A61B17/2258A61N7/00A61N2007/0082A61N2007/0086A61N2007/0039A61N7/02A61B17/22012A61N2007/0091A61B8/14A61B8/5207A61B8/5269A61B8/54A61B2017/00106A61B2017/00172
Inventor 马修·佩诺丹尼尔·苏亚雷斯
Owner CARDIAWAVE