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公开(公告)号：US20240183824A1
公开(公告)日：2024-06-06
申请号：US18269158
申请日：2021-12-21
Applicant: ICONEUS , INSERM (INSTITUT NATIONAL DE LA SANTÉ ET DE LA RECHERCHE MÉDICALE) , Centre National de la Recherche Scientifique , ECOLE SUPÉRIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS
Inventor： Bruno-Felix Osmanski , Thomas Deffieux , Mathieu Pernot , Adrien Bertolo , Charlie Demene
IPC: G01N29/06 , G01N29/26 , G01N33/483
CPC classification number: G01N29/0654 , G01N29/26 , G01N33/4833 , G01N2291/023 , G01N2291/106
Abstract: An ultrasound probe includes a connector and a probe head that includes a mount located in a tip part of the probe head, various linear matrices of transducers that emit acoustic waves with a given central wavelength and detect backscattered acoustic waves. The linear matrices are electrically connected to the connector, wherein each linear matrix from the linear matrices of transducers includes a first side along a first direction and a second side along a second direction. The second side is smaller than the first side. The linear matrices are fixed to the mount and juxtaposed on the mount with the first sides adjacent. Each linear matrix from the linear matrices of transducers is covered with a single cylindrical acoustic lens that focuses the acoustic waves emitted by the linear matrix. Each cylindrical acoustic lens includes a cylindrical axis substantially parallel to the first direction.
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公开(公告)号：US20240180524A1
公开(公告)日：2024-06-06
申请号：US18553591
申请日：2022-04-01
Applicant: INSERM (INSTITUT NATIONAL DE LA SANTÉ ET DE LA RECHERCHE MÉDICALE) , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , ECOLE SUPÉRIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS
Inventor： Clément PAPADACCI , Mickael TANTER , Hugues FARVE , Mathieu PERNOT
CPC classification number: A61B8/483 , A61B8/4488 , A61B8/481 , A61B8/5269 , A61B8/54 , B06B1/0629 , B06B1/0651 , G01S7/52039 , G01S7/52046 , G01S7/52079 , G01S15/8925 , G01S15/8981 , G01S15/8993 , G01S15/8997 , B06B2201/76
Abstract: While 3D ultrasound imaging is becoming a powerful tool in medical field. the main drawback is the difficulty to image large 3D volume. mainly related to the dimensions of the 2D array of transducers. In order to not lose in spatial resolution, it is necessary to use an array of transducers. wherein the size of the transducers does not exceed the wavelength of the ultrasound wave. Such requirement leads to dimensions of array for imaging large 3D volume which are not reachable or at too high cost with the current technology. The present disclosure overcomes the above technology limitation by using greater transducers, and where each transducer has a reception surface with a curved shape or is fitted with an acoustic lens. Such configuration of transducers leads to 2D array of transducers suitable for imaging large 3D volume, as a brain or a heart. with high resolution and high sensitivity.
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3.发明授权
公开(公告)号：US11940578B2
公开(公告)日：2024-03-26
申请号：US17160866
申请日：2021-01-28
Applicant: INSERM (Institut National de la Santé et de la Recherche Médicale) , Université de Paris , Centre National de la Recherche Scientifique (CNRS) , Ecole Supérieure de Physique et de Chimie Industrielles de la Ville de Paris
Inventor： Bertrand Tavitian , Mickaël Tanter , Mailyn Perez-Liva , Joaquin Lopez Herraiz , Jean Provost
CPC classification number: G01T1/2985 , A61B6/5229 , A61B6/5235
Abstract: An imaging method including:
a) acquiring N successive positron emission tomography (PET) low resolution images Γi and simultaneously, N successive Ultrafast Ultrasound Imaging (UUI) images Ui of a moving object;
b) determining from each UUI image Ui, the motion vector fields Mi that corresponds to the spatio-temporal geometrical transformation of the motion of the object;
c) obtaining a final estimated high resolution image H of the object by iterative determination of a high resolution image Hn+1 obtained by applying several correction iterations to a current estimated high resolution image Hn, n being the number of iterations, starting from an initial estimated high resolution image H1 of the object, each correction iteration including at least:
i) warping the estimated high resolution image Hn using the motion vector fields Mi to determine a set of low resolution reference images Lni;
ii) determining a differential image Di by difference between each PET image Γi and the corresponding low resolution reference image Lni;
iii) warping back the differential images Di using the motion vector fields Mi and averaging the N warped back differential images to obtain a high resolution differential image;
iv) determining the high resolution image Hn+1 by correcting the high resolution image Hn using the high resolution differential image;
d) applying the motion vector fields Mi of each UUI image Ui to the final high resolution image H.
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4.发明申请
公开(公告)号：US20220329377A1
公开(公告)日：2022-10-13
申请号：US17653288
申请日：2022-03-03
Applicant: GREENERWAVE , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS , ECOLE SUPÉRIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS
Inventor： Geoffroy LEROSEY , Mathias FINK , Fabrice LEMOULT , Alexandre AUBRY , Timmy FLOUME
IPC: H04L5/00 , H04B17/309 , H01Q3/44 , H04B7/0404 , H04W88/08
Abstract: A communication network includes an access point, a control unit in communication with the access point, a wave shaping device in communication with the control unit, and a wireless communication device. The control unit determines parameters of the wave shaping device, the parameters being search parameters if the control unit does not receive a pilot signal, and optimization parameters if the control unit receives a pilot signal.
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公开(公告)号：US11444386B2
公开(公告)日：2022-09-13
申请号：US17055315
申请日：2019-05-14
Applicant: Paris Sciences et Lettres , Centre National de la Recherche Scientifique (CNRS) , UNIVERSITA DEGLI STUDI DI SIENA , Politecnico Di Torino , Ecole Supérieure De Physique Et De Chimie Industrielles De La Ville De Paris , Sorbonne Universite
IPC: H01Q15/00
Abstract: An antenna assembly, comprising: a single substrate having a lower surface and an upper surface; an isotropic source of spherical electromagnetic waves configured for emitting surface waves on the upper surface; a ground plane formed on the lower surface comprising a metallic deposit on the entire lower surface; an antenna element formed on the upper surface comprising a periodic patterns metasurface formed on the substrate by a texture of subwavelength patches, the antenna element comprising: a first-scale metasurface defined by a two-dimensional alternation of metal or metamaterial patches having closely spaced vertices in each contiguous element to form small gaps; a plurality of switches disposed in the gap between the vertexes of the patches, each switch permitting to connect several patches through the vertexes for defining a second-scale metasurface having a pattern thus forming the antenna element; wherein each patch has dimensions which do not depend on the frequency of the waves to be radiated, the antenna element configured for transform the emitting surface waves on leaky waves.
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6.发明申请
公开(公告)号：US20220003721A1
公开(公告)日：2022-01-06
申请号：US17261095
申请日：2019-07-16
Applicant: Centre National de la Recherche Scientifique , ECOLE SUPÉRIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS
Inventor： Alexandre Aubry , Amaury Badon , Victor Barolle , Claude Boccara , Laura Cobus , Mathias Fink , William Lambert
Abstract: In a first aspect, the present description relates to a system for non-invasively characterizing a heterogeneous medium using ultrasound, comprising at least one first array (10) of transducers configured to generate a series of incident ultrasound waves in a region of said heterogeneous medium and record the ultrasound waves which are backscattered by said region as a function of time, as well as a computing unit (42) which is coupled to said at least one first array of transducers and configured to: record an experimental reflection matrix defined between an emission basis at the input and the basis of the transducers at the output; determine, from said experimental reflection matrix, at least one first wideband reflection matrix defined in a focused base at the input and output; determine a first distortion matrix defined between said focused basis and an observation basis, said first distortion matrix resulting, directly or after a change of basis, from the term-by-term matrix product of said first wideband reflection matrix defined between said focused basis and an aberration correction basis, with the phase-conjugated matrix of a reference reflection matrix defined for a model medium, between the same bases; determine, from said first distortion matrix, at least one mapping of a physical parameter of said heterogeneous medium.
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公开(公告)号：US20210361169A1
公开(公告)日：2021-11-25
申请号：US16979420
申请日：2019-03-11
Applicant: Centre National de la Recherche Scientifique , ECOLE SUPÉRIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS , SORBONNE UNIVERSITE , UNIV PARIS XIII PARIS-NORD VILLETANEUSE
Inventor： François Ramaz , Jean-Luc Gennisson , Jean-Baptiste Laudereau , Clément Dupuy , Jean-Michel Tualle
IPC: A61B5/00
Abstract: An acousto-optic imaging method in which light waves and unfocused acoustic waves having various directions of propagation m are emitted in a medium, by spatially modulating the amplitude of the ultrasonic transducers of an array of transducers according to several periodic spatial amplitude modulations j, and the resulting optical signal Smj(t) is captured. For each direction of propagation m, the signals Smj(t) are spatially demodulated in order to determine a signal Sm(t) used to reconstruct the image of the medium.
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公开(公告)号：US20210313701A1
公开(公告)日：2021-10-07
申请号：US17264120
申请日：2019-08-23
Applicant: GREENERWAVE , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS , ECOLE SUPÉRIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS
Inventor： Geoffroy LEROSEY , Mathias FINK , Philipp DEL HOUGNE , Jean-Baptiste GROS
Abstract: Antenna for transmitting and/or receiving an electromagnetic wave, including a radiating element, a tunable surface of variable impedance, and a controller connected to the tunable surface and which controls it based on a desired direction of the electromagnetic wave. The radiating element and the tunable surface are integrated inside a housing, the housing forming a cavity for the waves and including an opening for the electromagnetic wave to be transmitted to the outside.
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公开(公告)号：US10246548B2
公开(公告)日：2019-04-02
申请号：US15533648
申请日：2015-12-17
Applicant: UNIVERSITEIT GENT , ECOLE SUPÉRIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS
Inventor： Filip Du Prez , Johan Winne , Wim Denissen , Ludwik Leibler , Renaud Nicolaÿ
IPC: C08G63/02 , C08G18/67 , C08G83/00 , C08J3/24 , C08J11/04 , B29B17/00 , B29B17/04 , C07C225/16 , C07C229/30 , C07D295/185 , C08G18/72 , C08J11/06
Abstract: The present invention relates to a composition comprising a polymeric network having at least one unit of formula (I), (II), and/or (III); wherein the composition is obtained by contacting at least one compound A comprising at least two functions selected from the group of function of formula —X—C(═O)—CHR1-C(═O)—R2, —C(═O)—C≡C—R2; or —C(═O)—CR1═CR2—NR4R5; wherein at least 25% by weight of compounds A have a functionality ≤5, with % by weight relative to the total weight of compounds A; with at least one compound B comprising at least one —NH2, or —NH3+ groups; wherein X, R1, R2, R3, R4, R5, L1 and L2 have the same meaning as that defined in the claims. The present invention also relates to a compound comprising at least two units and at most 5 units of formula (I), (II), and/or (III), described hereinabove. The present invention also relates to processes for preparing the composition and the compounds, to material, articles, and polymers comprising or using the compositions and compounds, and the use thereof.
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公开(公告)号：US12172155B2
公开(公告)日：2024-12-24
申请号：US17602178
申请日：2020-04-08
Applicant: PARIS SCIENCES ET LETTRES , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , ECOLE SUPÉRIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS
Inventor： Nicolas Bremond , Jérôme Bibette , Gwénaëlle Bazin
Abstract: Disclosed is an emulsion production microfluidic device which includes: a first channel, including an entry port configured to inject a phase to be dispersed, a second channel, including an entry port configured to inject a continuous phase and an emulsion exit port, and at least one array of microchannels, a height of each of the microchannels being smaller than a height of the first channel; the second channel includes a first part connected to the outlet of each microchannel and at least a second part along the first part, the first part being between the array of microchannels and the second part, the first part having a height greater that the height of each microchannel, and the second part having a height greater than the height of the first part.
