Patent application number | Description | Published |
20090093724 | METHOD FOR OPTIMISING THE FOCUSSING OF WAVES THROUGH AN ABERRATION-INDUCING ELEMENT - The invention concerns a method for optimizing the focusing of waves in a zone of interest of a medium, with the waves being emitted by a network of sources to the medium through an aberration-inducing element that introduces an initially indeterminate phase shift. The method according to the invention proposes to use M−1 successive modifications of the emitted wave, each giving rise to a perturbation. According to the invention, the M perturbations are measured in the zone of interest at each modification of the phase and/or amplitude distributions, and these measurements are used to deduce optimal focusing characteristics to maximize the perturbation induced in the zone of interest. | 04-09-2009 |
20100007357 | Electrical Impedance Tomography Method and Device - Electrical impedance tomography method comprising: an electrical measurement step during which pre-determined electrical conditions are imposed on the surface of a medium to be imaged, while generating a mechanical disturbance at predefined points of the medium by locally modifying the impedance of the medium and an electrical parameter is measured at several points on the surface of the medium; and a calculation step during which the electrical impedance is determined at several points in the internal volume of the medium, taking into account the measurements carried out during the disturbance, as a function of a law for modification of the electrical impedance by this disturbance. | 01-14-2010 |
20100114533 | METHOD AND APPARATUS FOR EXPLORING BY WAVE PROPAGATION - A method of exploring by wave propagation, in which method an incident wave is emitted a plurality of times towards the same target zone (r | 05-06-2010 |
20100170342 | Method for Rheological Characterization of a Viscoelastic Medium - Method for rheological characterization of a viscoelastic medium, comprising the following steps: (a) an excitation step during which a vibratory excitation is generated in the viscoelastic medium leading to a deformation of the medium, (b) a deformation measurement step during which the deformation of the medium caused by the excitation is observed, (c) and a characterization step during which at least one non-zero power parameter y is determined such that a rheological parameter of the medium x is equal to x (f)=a+b.f | 07-08-2010 |
20100222678 | METHOD AND DEVICE FOR MEASURING A MEAN VALUE OF VISCO-ELASTICITY OF A REGION OF INTEREST - The invention relates to a method for measuring a mean visco-elasticity value for a soft material. Said method using a single probe carrying at least one transducer comprises the steps of:
| 09-02-2010 |
20110028838 | Method and Apparatus for Measuring a Physical Parameter in Mammal Soft Tissues by Propagating Shear Waves - Method for measuring a physical parameter in soft tissues of a mammal, in which a mechanical shear wave is propagated through the soft tissues and observation of the propagation leads to determine values of a shear wave propagation parameter. The physical parameter is computed on the basis of these values. | 02-03-2011 |
20110190627 | Method and Device for Marking a Medium, and Marker Usable in Such a Method - To mark an area of interest in a target medium, an initially inactivated and ultrasound-activatable optical marker is added to the medium, and then an ultrasound activation beam is emitted, being focused on the area of interest in order to locally activate the marker, which then colors the area of interest. | 08-04-2011 |
20120121516 | Emulsion Activatable by Ultrasounds and Method for Producing Same - The invention relates to an emulsion that can be activated by ultrasounds, comprising, in an emulsion in an aqueous solution, microparticles having a diameter of less than 10 μm and containing an active agent and a gaseous precursor in a liquid form, encapsulated by a first emulsifier. The microparticles contain nanoparticles smaller than 1 μm, in an emulsion in the gaseous precursor, each nanoparticle comprising an inner liquid that contains the active agent and is encapsulated by a second emulsifier. | 05-17-2012 |
20130301382 | Method and Device for Ultrasound Imaging - A method of high-resolution ultrasound imaging, in which transducers are made to emit ultrasound waves in a field of observations containing micro bubbles, by making the micro bubbles burst one by one in tandem with the emissions of ultrasound waves. At each shot j of an ultrasound wave, raw reverberated signals S | 11-14-2013 |
20140081138 | METHOD AND DEVICE FOR MEASURING A MEAN VALUE OF VISCO-ELASTICITY OF A REGION OF INTEREST - The invention relates to a method for measuring a mean visco-elasticity value for a soft material. Said method using a single probe carrying at least one transducer comprises the steps of: | 03-20-2014 |