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Device and method for measuring the elasticity of a human or animal organ

A measuring device, elastic technology, applied in the field of elastic devices, can solve problems such as unfavorable measurement

Inactive Publication Date: 2008-12-03
ECHOSENS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using traditional algorithms is not conducive to measuring displacement over the entire depth range

Method used

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  • Device and method for measuring the elasticity of a human or animal organ
  • Device and method for measuring the elasticity of a human or animal organ
  • Device and method for measuring the elasticity of a human or animal organ

Examples

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Embodiment Construction

[0047] According to the present invention and figure 1In the embodiment selected in the diagram above, the device of the invention comprises a contactor 1 comprising at least one ultrasonic transducer 2, an electric actuator 3, a position sensor 4, a soft sealing membrane 5, a protective cover 6, A pressure button 7 for activating the above-mentioned device, electronics 8 for a position sensor 4 , cables 9 , an alphanumeric display 10 .

[0048] Contact 1 is controlled by a microcomputer or a central unit (not shown in the figure) at this constituted control equipment, for example it can be an upper machine card in the cabinet connected by flexible cable with contact 1. A display, also known as the user interface, enables the user or operator to read the information provided by the system.

[0049] A servo assembly and an ultrasonic acquisition assembly, both of which are not shown in the drawings, are both connected to the probe 1 . These two components communicate together...

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PUM

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Abstract

The invention concerns a device for measuring elasticity of a human or animal organ, particularly the liver, or more generally all viscoelastic media delivering an ultrasonic signal after ultrasonic illumination, comprising at least a probe including an ultrasonic transducer (2), at least one position sensor, an actuator for triggering said device, wire-connected to an electric power supply. The invention is characterized in that it comprises an automatically controlled electrodynamic actuator, fixed to the ultrasonic transducer (2), capable of generating a transient low frequency mechanical stress having a frequency range between 1 Hz and 5000 Hz. The invention also concerns a method for calculating elasticity using said device.

Description

technical field [0001] The present invention relates to a device and a method for measuring the elasticity of human or animal organs, or more generally of all viscoelastic media which generate ultrasound signals when probed by ultrasound. It is particularly suitable for measuring the elasticity of the human or animal liver, but not exclusively. The advantage of this elasticity measurement is that it correlates with the amount of fibrosis present in the liver. Background technique [0002] In fact, it is important to understand that chronic hepatitis, whether alcoholic or viral or otherwise, can lead to fibrosis in order to determine the best time to treat that hepatitis. [0003] Currently, there are no non-invasive elastometric devices on the market, that is to say e.g. elastometric devices that do not require the extraction of a part of the organ or the medium. [0004] One of the prior art is US 5882302 which describes a transducer mounted on a motor. A motor displaces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/08A61B8/00
CPCA61B8/08A61B8/4281G01N2291/0422G01N2291/02475A61B8/4245G01N2291/0421A61B5/4244A61B5/0048A61B8/485A61B8/4254A61B5/0051A61B8/00
Inventor 洛朗·桑德兰让-米歇尔·阿斯克诺夫
Owner ECHOSENS SA
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