Patents Assigned to Ecole Polytechnique
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Publication number: 20220307878Abstract: The present invention concerns an elongated capacitive sensor for fluid monitoring. The sensor comprising: a fibre support made of a dielectric material or dielectric composite material; and a first electrode and a second electrode arranged longitudinally along the fibre support, the first and second electrodes forming together with the fibre support a capacitive sensing element whose capacitance is dependent upon one or more electrical properties of one or more materials inside the support and/or outside the support, and/or is dependent upon a change of materials configuration and associated overall change of one or more electrical properties inside the support and/or outside the support.Type: ApplicationFiled: August 26, 2020Publication date: September 29, 2022Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Fabien SORIN, William ESPOSITO, Véronique MICHAUD, Chaoqun DONG, Baris ÇAGLAR, Dang Tung NGUYEN
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Patent number: 11454743Abstract: The invention concerns an ophthalmic lens having an increased resistance to thermal and hygroscopic stresses, said ophthalmic lens comprising a substrate, at least one main face of which is coated with a siloxane-based anti-abrasion hardcoat, characterized in that said ophthalmic lens further comprises at least one protective layer of an organic-inorganic material directly in contact with said hardcoat, said protective layer of organic-inorganic material having a Young's modulus higher than 20 GPa, preferably of at least 25 GPa.Type: GrantFiled: August 21, 2017Date of Patent: September 27, 2022Assignees: CORPORATION DE L'ECOLE POLYTECHNIQUE DE MONTREAL, ESSILOR INTERNATIONALInventors: Martin Caron, Karin Scherer, Oleg Zabeida, Ludvik Martinu, Jolanta Klemberg-Sapieha, Thomas Schmitt
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Patent number: 11446861Abstract: A method for producing a three-dimensional object comprising computing a sequence of back-projections describing the three-dimensional object to be formed from different orientation angles of the object, defining a sequence of patterns of light using the back-projections, and irradiating with each of the patterns of light at the respective corresponding orientation angle. According to the defined sequence, a photoresponsive material is capable of altering its material phase, upon irradiation by light, thereby creating a three-dimensional distribution of alterations within the photoresponsive medium which physically reproduces the three-dimensional object, thereby creating the three-dimensional object.Type: GrantFiled: August 23, 2018Date of Patent: September 20, 2022Assignee: Ecole PolyTechnique Federale de Lausanne (EPFL)Inventors: Damien Loterie, Paul Delrot, Christophe Moser
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Publication number: 20220287640Abstract: Systems and methods are provided for that use noninvasively measured physiologic parameters to predict in real time noninvasively unobservable cardiovascular parameters by employing a one-dimensional arterial tree numerical model calibrated with representative patient data. The numerical model further may be trained and calibrated on a larger database that includes synthetic data using machine-learning algorithms to provide a robust generalized estimator for multiple cardiovascular and hemodynamic parameters.Type: ApplicationFiled: August 14, 2020Publication date: September 15, 2022Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Vasiliki BIKIA, Stamatia PAGOULATOU, Nikolaos STERGIOPULOS
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Patent number: 11439822Abstract: A polymer-based optoelectronic interface comprises an elastomeric substrate (10) and a plurality of discrete photovoltaic pixel elements (20) disposed on top of the substrate. Each pixel element comprises at least one active layer comprising a semiconducting polymer or polymer mixture. The pixel elements are excitable by light to generate an electric signal via a photovoltaic process. For mechanically protecting the pixel elements, an elastomeric encapsulation layer (30) can be disposed on top of the substrate, the encapsulation layer defining access openings (31) for the pixel elements (20). Pillar-like structures (40) can be disposed on the pixel elements. Methods for fabricating such an optoelectronic interface are also disclosed. The optoelectronic interface can be used as a retinal prosthesis.Type: GrantFiled: March 31, 2017Date of Patent: September 13, 2022Assignee: ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNEInventors: Diego Ghezzi, Marta Jole Ildelfonsa Airaghi Leccardi, Laura Ferlauto
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Patent number: 11440796Abstract: The present relates to a Metal hydride compressor control method for generating a variable output pressure P_desired_outPut, comprising a first step of inflowing gaseous hydrogen into a metal hydride compartment at a constant temperature and then stopping the gaseous hydrogen inflow, a second step of heating the metal hydride to a predetermined temperature which corresponds to a temperature which passes through the ?+? phase at the desired output pressure P_desired_output, a third step of opening the output connection of the compressor and keeping it at a constant pressure by regulating the temperature to keep a constant output pressure P_desired_outPut until the system completely leaves the ?+? phase.Type: GrantFiled: November 16, 2018Date of Patent: September 13, 2022Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Noris Gallandat, Andreas Züttel
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Publication number: 20220283074Abstract: A method and system for deriving particle characteristics is described. The method comprises imaging the movement of at least one free-floating particle in a liquid environment at at least one moment in time, determining for at least one moment in time a movement parameter based on the imaged movement of the free-floating particles in the liquid environment, and deriving from the movement parameter a characteristic of the at least one particle.Type: ApplicationFiled: April 30, 2020Publication date: September 8, 2022Applicants: VRIJE UNIVERSITEIT BRUSSEL, ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNEInventors: Ronnie WILLAERT, Sandor KASAS, Pieterjan VANDEN BOER, Anton MALOVICHKO, Mitchel PEREZ GONZALEZ, Hichem SAHLI
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Patent number: 11435002Abstract: An actuator (22) comprises at least one actuator body (32) of dielectric elastomeric material and two electrodes (34, 36) being attached to opposite surfaces of the actuator body (32), respectively. At least one of the actuator body (32) and at least one of the electrodes (34, 36) is at least partly covered at its outer side with a protective layer (38a, 38b) of polymer material, wherein a mechanical stiffness of the protective layer (38a, 38b) is at least three times lower than a mechanical stiffness of the actuator body (32). Moreover, a valve actuator unit comprises such an actuator (22) and a housing, wherein the actuator (22) is arranged within the housing and the remainder of the housing is filled with a gas. Additionally, a valve comprises such a valve actuator unit and a valve element, wherein the valve element is movable by the valve actuator unit.Type: GrantFiled: April 30, 2021Date of Patent: September 6, 2022Assignees: Bürkert Werke GmbH & Co. KG, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Herbert Rudolf Shea, Fabio Beco Albuquerque
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Publication number: 20220274326Abstract: The present invention is related to a method and apparatus for the volumetric fabrication of three-dimensional objects or articles from photoresponsive materials loaded with scattering particles, by adjusting the refractive index of said photoresponsive material (12) so as to match the refractive index of said scattering particles (30), and/or using a light source emitting light of a wavelength longer than 630 nm, preferably in a range from 630 nm to 1050 nm, more preferably in a range from 650 nm to 900 nm.Type: ApplicationFiled: July 7, 2020Publication date: September 1, 2022Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNEInventors: Paul Delrot, Damien Loterie, Christophe Moser
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Patent number: 11425351Abstract: A computer-implemented method for inducing an Out of Body Experience (OBE) in a user through an augmented/virtual reality (ARNR) system, the OBE including an exit state and a disembodiment state, the method comprising the steps of (a) changing the user viewpoint from body-centered viewpoint to distanced viewpoints, thereby inducing an OBE exit state, and (b) showing to the user his/her own body from the distanced viewpoints, thereby inducing an OBE disembodiment state.Type: GrantFiled: November 5, 2018Date of Patent: August 23, 2022Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Olaf Blanke, Giulio Rognini, Simone Gallo, Florian Lance, Bruno Herbelin
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Patent number: 11420056Abstract: The present invention relates to methods and systems for planning and/or providing neuromodulation. An example system comprises a neurostimulator comprising a least one electrode, functional mapping module configured and arranged such that based on stimulation related basic data and stimulation related response data and transfer data a digital characteristic functional map is generated and/or provided, which describes the interrelation between the stimulation related basic data and the stimulation related response data and the transfer data, and analysis module configured and arranged such that the digital characteristic functional map may be analyzed in connection with neurostimulation provided by the neurostimulator such that the provided neurostimulation and its response may be analyzed on the basis of the functional map and that on the basis of this analysis a placement analysis of a placement of the electrode is provided.Type: GrantFiled: November 29, 2018Date of Patent: August 23, 2022Assignees: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL), ONWARD MEDICAL N.V.Inventors: Marco Capogrosso, Karen Minassian, Fabien Wagner, Gregoire Courtine, Miroslav Caban, Robin Brouns, Jurriaan Bakker, Andre Kleibeuker, Bert Bakker, Vincent Delattre
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Patent number: 11420062Abstract: The present disclosure relates to a neuromodulation and/or neurostimulation system comprising at least the following components: at least one sensing unit, at least control unit, at least one stimulation unit, at least one Central Nervous System (CNS) stimulation module, at least one Peripheral Nervous System (PNS) stimulation module, wherein at least one of the components of the neuromodulation and/or neurostimulation system is implantable.Type: GrantFiled: March 20, 2018Date of Patent: August 23, 2022Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Sophie Wurth, Grégoire Courtine, Silvestro Micera
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Patent number: 11413459Abstract: The present invention relates to systems and methods for planning and/or providing neurostimulation for a patient. An example system includes a pathological spinal cord map storage module for storing at least one pathological spinal cord map describing activation of a spinal cord of a patient, a healthy spinal cord map storage module for storing at least one reference map describing physiological activation of the spinal cord of at least one healthy subject, an analysis module for generating a deviation map, the deviation map describing an activation difference between the pathological spinal cord map and the reference map, and a compensation module for calculating, based on the deviation map, a neurostimulation protocol for compensating the activation difference.Type: GrantFiled: November 29, 2018Date of Patent: August 16, 2022Assignees: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL), ONWARD MEDICAL B.V.Inventors: Flavio Raschella, Silvestro Misera, Gregoire Courtine, Tomislav Milekovic, Fabien Wagner, Marco Capogrosso, Jurriaan Bakker, Robin Brouns, Vincent Delattre
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Patent number: 11401625Abstract: The invention relates to a method for making nanopores in thin layers or monolayers of transition metal dichalcogenides that enables accurate and controllable formation of pore within those thin layer(s) with sub-nanometer precision.Type: GrantFiled: February 11, 2021Date of Patent: August 2, 2022Assignees: Ecole Polytechnique Federale De Lausanne (EPFL), Roche Sequencing Solutions, Inc.Inventors: Jiandong Feng, Ke Liu, Aleksandra Radenovic, Yann Astier
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Patent number: 11401463Abstract: The present invention concerns a luminescent particle comprising a nanoparticle of formula A1-xLnxVO4(1-y)(PO4)y??(I) in which A is selected from yttrium (Y), gadolinium (Gd), lanthanum (La), and mixtures thereof; Ln is selected from europium (Eu), dysprosium (Dy), samarium (Sm), neodymium (Nd), erbium (Er), ytterbium (Yb), and mixtures thereof; 0<x<1; and 0?y<1; characterized in that the nanoparticle on its surface has tetraalkylammonium cations in an amount such that said nanoparticle has a zeta potential, ?, of less than or equal to ?28 mV in an aqueous medium with a pH?5, more particularly with a pH?5.5, and with an ionic conductivity >100 ?S·cm?1. It also concerns a method for preparing such luminescent particles, a colloidal suspension of these particles, and the use thereof as a diagnostic agent, and also a diagnostic kit comprising such luminescent particles.Type: GrantFiled: May 18, 2018Date of Patent: August 2, 2022Assignees: ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Thierry Gacoin, Maximilian Richly, Pascal Preira, Antigoni Alexandrou, Cédric Bouzigues, Rabei Mohammedi
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Publication number: 20220228340Abstract: The present invention relates to a method for inducing ground consolidation. The method comprises providing a first chamber in a first hole in the ground, and a second chamber in a second hole in the ground, the first and second chambers being liquid-impermeable and electrically conductive; providing a first electrolytic fluid in the first chamber and a second electrolytic fluid in the second chamber; placing at least a first electrode in the first chamber, and at least a second electrode in the second chamber, the first and second electrodes being operatively connected to a power supply; feeding consolidation fluids into the ground for feeding reactants of a consolidation process, and catalysers for the reactants into the ground; and applying to the first and second electrodes an electric current.Type: ApplicationFiled: May 31, 2019Publication date: July 21, 2022Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Dimitrios TERZIS, Lyesse LALOUI, Patrick HICHER
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Patent number: 11389096Abstract: An on-body wearable bio-fluid collection and sensing device including an interface or interface surface comprising at least one biocompatible material for contacting a bodily part; at least one inlet for receiving the bio-fluid, at least one outlet for evacuating the bio-fluid, a plurality of semiconductor sensors configured to analyze the received bio-fluid, at least one reference electrode for biasing a bio-fluid gate of at least one of the semiconductor sensors, and at least one micro-fluidic or nano-fluidic channel in fluid communication with the at least one inlet, the at least one outlet and the at least one reference electrode; the at least one micro-fluidic or nano-fluidic channel includes the plurality of semiconductor sensors.Type: GrantFiled: March 9, 2017Date of Patent: July 19, 2022Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Mihai Adrian Ionescu, Hoël Guerin, Erick García Cordero, Francesco Bellando
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Patent number: 11385719Abstract: The present disclosure relates to a device including electrostatic brakes providing haptic kinaesthetic feedback to a user in e.g. assistive, rehabilitation or virtual reality scenarios, as well as tele-manipulation.Type: GrantFiled: July 10, 2018Date of Patent: July 12, 2022Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Ronan Hinchet, Herbert Shea
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Publication number: 20220206275Abstract: A light microscope has a light source for illuminating a specimen, a sensor array comprised of photon-counting detector elements for measuring detection light coming from the specimen, and a control device for controlling the sensor array. The control device is configured for flexibly binning the photon-counting detector elements into one or more super-pixels.Type: ApplicationFiled: April 9, 2019Publication date: June 30, 2022Applicants: Carl Zeiss Microscopy GmbH, Ecole Polytechnique Federale de LausanneInventors: Tiemo ANHUT, Daniel SCHWEDT, Ivan Michel ANTOLOVIC, Claudio BRUSCHINI, Edoardo CHARBON
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Publication number: 20220207864Abstract: A method of classifying a media includes receiving a media file and extracting therefrom first and second data streams including first and second media content, respectively, the media content being associated with the media item. First and second feature vectors describing the first and second media content, respectively, are generated. At least a first single feature vector representing the first sequence of first feature vectors and the second sequence of second feature vectors is generated, or at least a first single feature vector representing at least the first sequence of first feature vectors is generated. A second feature vector representing at least the second sequence of second feature vectors is generated. A probability vector from the first single feature vector, or from the first and second single feature vectors is generated. A user profile suitability class is assigned to the media item based on the probability vector.Type: ApplicationFiled: April 29, 2019Publication date: June 30, 2022Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Gabriel AUTÈS, Sami ARPA, Sabine SÜSSTRUNK