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| 20080223562 | Heat Exchanger, in Particular Charge-Air Cooler or Exhaust Gas Cooler for an Internal Combustion Engine of a Motor Vehicle - The invention relates to a heat exchanger, in particular a charge-air cooler or exhaust gas cooler for an internal combustion engine of a motor vehicle, having a first tank ( | 09-18-2008 |
| 20100089548 | HEAT EXCHANGER - A heat exchanger, particularly a charge air heat exchanger or exhaust gas heat exchanger, is provided for the heat exchange between a first fluid, particularly a charge air, or an exhaust gas, and a second fluid, particularly a coolant, comprising the following: heat exchanging guides for the first and second fluids, the guides being separated from each other in the core, the core having a plurality of flow channels through which the first fluid flows, and a housing that receives the flow channels and through which the second fluid flows at least one compartment lid, which is flow-connected to the flow channels, and a base that is attached to the compartment lid and that is equipped with one or more passage openings for flow channels. In order to achieve an advantageous connection of the compartment lid to the base, particularly in case the compartment lid and the base are made of different materials, the invention provides that the compartment lid is attached to the base via one or more connections as a bolted connection and/or a slotted crimping. | 04-15-2010 |
| 20120292002 | INTAKE PIPE FOR AN INTERNAL COMBUSTION ENGINE - An intake pipe for an internal combustion engine, comprising an outer housing of the intake pipe, wherein a feed line for charge air opens into an inlet section of the housing, a heat exchanger that is integrated in the intake pipe and cooled by a coolant and that comprises a plurality of exchanger tubes, in particular flat tubes, and an engine flange for connecting the intake tube to a cylinder head of an internal combustion engine, wherein charge air flows through the exchanger tubes and at least a section of the outer housing is designed as a water jacket surrounding the exchanger tubes. | 11-22-2012 |
| 20130042840 | DEVICE FOR EXHAUST GAS RECIRCULATION FOR AN INTERNAL COMBUSTION ENGINE - A device for exhaust-gas recirculation for an internal combustion engine is provided that includes a flange for attaching to a cylinder head of the internal combustion engine. Combustion air flows from a passage region of the flange directly into at least one intake duct of a cylinder, and an inlet for an inflow of recirculated exhaust gas into the combustion air is provided. The inlet for the inflow of the recirculated exhaust gas is arranged on the flange. | 02-21-2013 |
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| 20120191004 | HEARING TESTING PROBE APPARATUS WITH DIGITAL INTERFACE - Certain embodiments provide a hearing testing probe apparatus. The hearing testing probe apparatus includes a probe tube detachably coupled at a first end to a probe body and extending through a center hole in an eartip to align proximate a face of the eartip at a second end. The probe tube includes a plurality of stimulus lumens for receiving and carrying stimulus from the first end of the probe tube for output at the second end of the probe tube. The probe tube includes one or more microphone lumens for receiving and carrying one or more measured responses from the second end of the probe tube to one or more microphones at the first end of the probe tube. | 07-26-2012 |
| 20140198926 | ELECTRONIC EARPLUG FOR PROVIDING COMMUNICATION AND PROTECTION - Systems and methods for providing communication and protection by an electronic earplug are provided. A communication and protection system includes an electronic earplug operable in a transmit mode and a receive mode. The electronic earplug includes an external microphone, an ear canal microphone, processing circuitry, and a receiver. In the receive mode, the external microphone is configured to transduce sound pressure levels received from exterior to an ear canal to electrical signals; the processing circuitry is configured to process the electrical signals from the external microphone to provide processed electrical signals; and, the receiver is configured to convert the processed electrical signal to sound. In the transmit mode, the ear canal microphone is configured to transduce sound pressure levels received from in the ear canal to electrical signals provided to a communication device; and, one or more of the external microphone, the processing circuitry, and the receiver is disabled. | 07-17-2014 |
| 20140254852 | ELECTRONIC EARPLUG WINDSCREEN - Certain embodiments provide an in-the-ear device. The in-the-ear device includes a housing including a microphone inlet. The in-the-ear device also includes a microphone and a windscreen. The microphone is disposed within the housing adjacent to the microphone inlet. The windscreen includes a porous screen and an attachment mechanism coupled to the porous screen. The attachment mechanism is configured to detachably couple to the housing surrounding a perimeter of the microphone inlet such that an acoustic seal is formed between the windscreen and the housing. | 09-11-2014 |
| 20140355809 | FLEXIBLE EARTIP WITH RETENTION BASE - Certain embodiments provide an eartip. The eartip includes a flexible body, a sound channel, and a retention base. The flexible body is bendable at curves of an ear canal of a wearer. The sound channel is disposed within the flexible body. The sound channel includes a first end inlet and a second end outlet. The sound channel is generally parallel with the flexible body. The retention base includes a retention base inlet, one or more retention cavities, and at least one protrusion. The one or more retention cavities extend from the retention base inlet to the first end inlet of the sound channel. The one or more retention cavities are configured to receive a hearing device. The at least one protrusion is configured to detachably secure the hearing device within the one or more retention cavities. | 12-04-2014 |
| 20150047651 | COMPACT HIGH FIDELITY EARPLUG - The present technology relates to a compact high fidelity earplug. The earplug has a central column having a hollow sound channel. Inner and outer platforms extend radially from the central column to define a first and second chamber. Openings in the first and second platforms allow sound to enter into the first chamber, and pass into the second chamber. Sound is then directed through an opening in the central column, into the sound chamber, and towards the ear of a wearer. | 02-19-2015 |
| 20150096379 | AUDIOMETRY EARPHONE INSERT - The present technology relates to an earphone apparatus adapted for use in audiometry examinations. The earphone apparatus comprises a housing and a receiver having an acoustic output adapted to connect with an audio signal source. The earphone apparatus can also include a circuit board with an electrical equalization network connected to the receiver. A coupling can be connected to the acoustic output of the receiver. A sound tube can be connected to the acoustic output and extends out from the housing to an ear piece. The earphone also includes a resonance cancellation assembly comprising a damping chamber and a tubing section acoustically connecting the damping chamber to the coupling. The damping chamber can provide an acoustic compliance to the sound delivered by the receiver. The earphone can also comprise an electrical connector with a protector that is adapted to connect with a female connector delivering electrical power. | 04-09-2015 |
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| 20090094817 | Directional Microphone Assembly - A directional microphone assembly for a hearing aid is disclosed. The hearing aid has one or more microphone cartridge(s), and first and second sound passages. Inlets to the sound passages, or the sound passages themselves, are spaced apart such that the shortest distance between them is less than or approximately equal to the length of the microphone cartridge(s). A sound duct and at least one surface of a microphone cartridge may form each sound passage, where the sound duct is mounted with the microphone cartridge. Alternatively, each sound duct may be formed as an integral part of a microphone cartridge. | 04-16-2009 |
| 20090176538 | Two-Way Communication Device with Detachable Boom - Certain embodiments provide a two-way communication device that includes: a housing; a first microphone disposed on a boom that is removably attached to the housing; and a second microphone mounted with the housing, wherein when the boom is attached to the housing, the first microphone is operational and the second microphone is not operational, and when the boom is not attached to the housing, the second microphone is operational and the first microphone is not operational. Certain embodiments provide, a two-way communication device that includes a charging jack for providing power to a battery mounted with a housing, wherein the charging jack is only accessible when a boom/microphone assembly is not attached to the housing. | 07-09-2009 |
| 20110103605 | ELECTRONIC EARPLUG - Electronic earplugs, methods of enhancing and/or attenuating sound using electronic earplugs, and kits including electronic earplugs are provided. Certain electronic earplugs provided can deliver sound to a user's ear canal at levels below, equal to, and/or above ambient sound levels for specified ambient sound level ranges. Certain electronic earplugs provided can be switched between first and second settings with different sound level delivery settings. Certain electronic earplugs provided can be coupled with or integrated into two-way communication devices. Certain of such two-way communication devices can use induction to receive and transmit audio signals. Certain electronic earplugs provided can include a receive coil configured to allow remote radio signals to be received. Certain electronic earplugs provided can block at least about 35 dB of ambient sound when fully inserted into a user's ear canal. Kits that include electronic earplugs and accessories for use with electronic earplugs are also provided. | 05-05-2011 |
| 20120163649 | INSERT EARPHONE USING A MOVING COIL DRIVER - Certain embodiments provide an insert earphone assembly. The insert earphone assembly may include a transducer adapted to convert electrical signals into sound energy. The insert earphone assembly may also include a main sound channel adapted for communicating the sound energy to a user. The insert earphone assembly may also include a plurality of one or more damping elements, one or more auxiliary volumes, and one or more auxiliary ducts. The plurality of the one or more damping elements, the one or more auxiliary volumes, and the one or more auxiliary ducts may be adapted to absorb sound from the main sound channel to modify at least one insertion response. | 06-28-2012 |
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| 20120022843 | Method and System for Comprehensive Patient-Specific Modeling of the Heart - A method and system for patient-specific modeling of the whole heart anatomy, dynamics, hemodynamics, and fluid structure interaction from 4D medical image data is disclosed. The anatomy and dynamics of the heart are determined by estimating patient-specific parameters of a physiological model of the heart from the 4D medical image data for a patient. The patient-specific anatomy and dynamics are used as input to a 3D Navier-Stokes solver that derives realistic hemodynamics, constrained by the local anatomy, along the entire heart cycle. Fluid structure interactions are determined iteratively over the heart cycle by simulating the blood flow at a given time step and calculating the deformation of the heart structure based on the simulated blood flow, such that the deformation of the heart structure is used in the simulation of the blood flow at the next time step. The comprehensive patient-specific model of the heart representing anatomy, dynamics, hemodynamics, and fluid structure interaction can be used for non-invasive assessment and diagnosis of the heart, as well as virtual therapy planning and cardiovascular disease management. Parameters of the comprehensive patient-specific model are changed or perturbed to simulate various conditions or treatment options, and then the patient specific model is recalculated to predict the effect of the conditions or treatment options. | 01-26-2012 |
| 20120072190 | Method and System for Non-Invasive Assessment of Coronary Artery Disease - A method and system for non-invasive patient-specific assessment of coronary artery disease is disclosed. An anatomical model of a coronary artery is generated from medical image data. A velocity of blood in the coronary artery is estimated based on a spatio-temporal representation of contrast agent propagation in the medical image data. Blood flow is simulated in the anatomical model of the coronary artery using a computational fluid dynamics (CFD) simulation using the estimated velocity of the blood in the coronary artery as a boundary condition. | 03-22-2012 |
| 20120203530 | Method and System for Patient-Specific Computational Modeling and Simulation for Coupled Hemodynamic Analysis of Cerebral Vessels - A method and system for patient-specific computational modeling and simulation for coupled hemodynamic analysis of cerebral vessels is disclosed. An anatomical model of a cerebral vessel is extracted from 3D medical image data. The anatomical model of the cerebral vessel includes an inner wall and an outer wall of the cerebral vessel. Blood flow in the cerebral vessel and deformation of the cerebral vessel wall are simulated using coupled computational fluid dynamics (CFD) and computational solid mechanics (CSM) simulations based on the anatomical model of the cerebral vessel. | 08-09-2012 |
| 20130132054 | Method and System for Multi-Scale Anatomical and Functional Modeling of Coronary Circulation - A method and system for multi-scale anatomical and functional modeling of coronary circulation is disclosed. A patient-specific anatomical model of coronary arteries and the heart is generated from medical image data of a patient. A multi-scale functional model of coronary circulation is generated based on the patient-specific anatomical model. Blood flow is simulated in at least one stenosis region of at least one coronary artery using the multi-scale function model of coronary circulation. Hemodynamic quantities, such as fractional flow reserve (FFR), are computed to determine a functional assessment of the stenosis, and virtual intervention simulations are performed using the multi-scale function model of coronary circulation for decision support and intervention planning. | 05-23-2013 |
| 20130144573 | Method and System for Patient-Specific Hemodynamic Assessment of Virtual Stent Implantation - A method and system for assessment of virtual stent implantation in an aortic aneurysm is disclosed. A patient-specific 4D anatomical model of the aorta is generated from the 4D medical imaging data. A model representing mechanical properties of the aorta wall is adjusted to reflect changes due to aneurysm growth at a plurality of time stages. A stable deformation configuration of the aorta is generated for each time stages by performing fluid structure interaction (FSI) simulations using the patient-specific 4D anatomical model at each time stage based on the adjusted model representing the mechanical properties of the aorta wall at each time stage. Virtual stent implantation is performed for each stable deformation configuration of the aorta and FSI simulations are performed for each virtual stent implantation. | 06-06-2013 |
| 20130191100 | BLOOD FLOW COMPUTATION IN VESSELS WITH IMPLANTED DEVICES - A method for modeling blood flow through a flow diverter includes receiving a medical image containing blood vessels. Vessel geometry is extracted from the received medical image. Inlets and outlets are tagged within the extracted vessel geometry. A desired flow diverter is selected. A model of the selected flow diverter is generated within the imaged blood vessel, the model representing the flow diverter as a tube having a porous surface characterized by a viscous resistance and an inertial resistance. A course of blood flow though the flow diverter is predicted based on the generated model, the extracted vessel geometry, and the tagged inlets and outlets. | 07-25-2013 |
| 20130197884 | Method and System for Advanced Measurements Computation and Therapy Planning from Medical Data and Images Using a Multi-Physics Fluid-Solid Heart Model - Method and system for computation of advanced heart measurements from medical images and data; and therapy planning using a patient-specific multi-physics fluid-solid heart model is disclosed. A patient-specific anatomical model of the left and right ventricles is generated from medical image patient data. A patient-specific computational heart model is generated based on the patient-specific anatomical model of the left and right ventricles and patient-specific clinical data. The computational model includes biomechanics, electrophysiology and hemodynamics. To generate the patient-specific computational heart model, initial patient-specific parameters of an electrophysiology model, initial patient-specific parameters of a biomechanics model, and initial patient-specific computational fluid dynamics (CFD) boundary conditions are marginally estimated. A coupled fluid-structure interaction (FSI) simulation is performed using the initial patient-specific parameters, and the initial patient-specific parameters are refined based on the coupled FSI simulation. The estimated model parameters then constitute new advanced measurements that can be used for decision making. | 08-01-2013 |
| 20130243294 | Method and System for Hemodynamic Assessment of Aortic Coarctation from Medical Image Data - A method and system for non-invasive hemodynamic assessment of aortic coarctation from medical image data, such as magnetic resonance imaging (MRI) data is disclosed. Patient-specific lumen anatomy of the aorta and supra-aortic arteries is estimated from medical image data of a patient, such as contrast enhanced MRI. Patient-specific aortic blood flow rates are estimated from the medical image data of the patient, such as velocity encoded phase-contrasted MRI cine images. Patient-specific inlet and outlet boundary conditions for a computational model of aortic blood flow are calculated based on the patient-specific lumen anatomy, the patient-specific aortic blood flow rates, and non-invasive clinical measurements of the patient. Aortic blood flow and pressure are computed over the patient-specific lumen anatomy using the computational model of aortic blood flow and the patient-specific inlet and outlet boundary conditions. | 09-19-2013 |
| 20140024932 | Computation of Hemodynamic Quantities From Angiographic Data - Methods for computing hemodynamic quantities include: (a) acquiring angiography data from a patient; (b) calculating a flow and/or calculating a change in pressure in a blood vessel of the patient based on the angiography data; and (c) computing the hemodynamic quantity based on the flow and/or the change in pressure. Systems for computing hemodynamic quantities and computer readable storage media are described. | 01-23-2014 |
| 20140296842 | Patient Specific Planning and Simulation of Ablative Procedures - Patient specific temperature distribution in organs, due to an ablative device, is simulated. The effects of ablation are modeled. The modeling is patient specific. The vessel structure for a given patient, segmented from medical images, is accounted for as a heat sink in the model of biological heat transfer. A temperature map is generated to show the effects of ablation in a pre-operative analysis. Temperature maps resulting from different ablation currents and ablation device positions may be used to determine a more optimal location of the ablative device for a given patient. Other models may be included, such as accounting for the tissue damage during the ablation. | 10-02-2014 |
| 20160066800 | Method and System for Non-Invasive Assessment of Coronary Artery Disease - In order to assess coronary artery disease from medical image data, an anatomical model of a coronary artery is generated from the medical image data. A velocity of blood in the coronary artery is estimated based on a spatio-temporal representation of contrast agent propagation in the medical image data. Blood flow is simulated in the anatomical model of the coronary artery using a computational fluid dynamics (CFD) simulation using the estimated velocity of the blood in the coronary artery as a boundary condition. | 03-10-2016 |
| 20160073970 | Computation of Hemodynamic Quantities from Angiographic Data - Methods for computing hemodynamic quantities include: (a) acquiring angiography data from a patient; (b) calculating a flow and/or calculating a change in pressure in a blood vessel of the patient based on the angiography data; and (c) computing the hemodynamic quantity based on the flow and/or the change in pressure. Systems for computing hemodynamic quantities and computer readable storage media are described. | 03-17-2016 |
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| 20140136174 | System and Method for Patient Specific Modeling of Liver Tumor Ablation - A method and system for tumor ablation planning and guidance based on a patient-specific model of liver tumor ablation is disclosed. A patient-specific anatomical model of the liver and circulatory system of the liver is estimated from 3D medical image data of a patient. Blood flow in the liver and the circulatory system of the liver is simulated based on the patient-specific anatomical model. Heat diffusion due to ablation is simulated based on a virtual ablation probe position and the simulated blood flow in the liver and the venous system of the liver. Cellular necrosis in the liver is simulated based on the simulated heat diffusion. A visualization of a simulated necrosis region is generated and displayed to the user for decision making and optimal therapy planning and guidance. | 05-15-2014 |
| 20150045644 | System and Method for Estimating Artery Compliance and Resistance from 4D Cardiac Images and Pressure Measurements - A method and system for estimating arterial compliance and resistance based on medical image data and pressure measurements is disclosed. An arterial inflow estimate over a plurality of time points is determined based on medical image data of a patient. An arterial pressure measurement of the patient is received. At least one cardiac cycle of the arterial pressure measurement is synchronized with at least one cardiac cycle of the arterial inflow measurement. Arterial compliance and resistance of the patient is estimated based on the arterial inflow estimate and the synchronized arterial pressure measurement. | 02-12-2015 |
| 20150063649 | Method and System for Blood Flow Velocity Reconstruction From Medical Images - A method and system for blood flow velocity reconstruction from medical image data is disclosed. Flow system geometry of a flow conduit is generated from medical image data. The flow system velocity includes an inlet, walls, and one or more outlets of the flow conduit. A measured velocity field is extracted from the medical image data. Inlet and wall fluxes are estimated based on the measured velocity field or other external measurements. Outlet fluxes are estimated such that mass conservation is constrained based on the inlet and wall fluxes. A reconstructed velocity field is calculated by solving flux-constrained Poisson (FCP) equations that are constrained by the estimated output fluxes | 03-05-2015 |
| 20150065864 | Method and System for Functional Assessment of Renal Artery Stenosis from Medical Images - A method and system for non-invasive assessment of renal artery stenosis is disclosed. A patient-specific anatomical model of at least a portion of the renal arteries and aorta is generated from medical image data of a patient. Patient-specific boundary conditions of a computational model of blood flow in the portion of the renal arteries and aorta are estimated based on the patient-specific anatomical model. Blood flow and pressure are simulated in the portion of the renal arteries and aorta using the computational model based on the patient-specific boundary conditions. At least one hemodynamic quantity characterizing functional severity of a renal stenosis region is calculated based on the simulated blood flow and pressure in the portion of the renal arteries and aorta. | 03-05-2015 |
| 20150242588 | System and Method for Personalized Computation of Tissue Ablation Extent Based on Medical Images - A method and system for personalized computation of tissue ablation extent based on medical images of a patient is disclosed. A patient-specific anatomical model of the liver and liver vessels is estimated from medical image data of a patient. Blood flow in the liver and liver vessels is simulated. An ablation simulation is performed that uses a bio-heat model to simulate heat diffusion due to an ablation based on the simulated blood flow and a cellular necrosis model to simulate cellular necrosis in the liver based on the simulated heat diffusion. Personalized tissue parameters of the bio-heat model and the cellular necrosis model are estimated based on observed results of a preliminary ablation procedure. Planning of the ablation procedure is then performed using the personalized bio-heat equation and the cellular necrosis model. The model can be subsequently refined as more ablation observations are obtained. | 08-27-2015 |
| 20160022369 | System And Method For Interactive Patient Specific Simulation Of Radiofrequency Ablation Therapy - A method and system for interactive patient-specific simulation of liver tumor ablation is disclosed. A patient-specific anatomical model of the liver and circulatory system of the liver is estimated from 3D medical image data of a patient. A computational domain is generated from the patient-specific anatomical model of the liver. Blood flow in the liver and the circulatory system of the liver is simulated based on the patient-specific anatomical model. Heat diffusion due to ablation is simulated based on a virtual ablation probe position and the simulated blood flow in the liver and the circulatory system of the liver by solving a bio-heat equation for each node on the level-set representation using a Lattice-Boltzmann method (LBM) implementation. Cellular necrosis in the liver is computed based on the simulated heat diffusion. Visualizations of a computed necrosis region and temperature maps of the liver are generated. A user input is interactively received to modify the position of the virtual ablation probe, the heat diffusion and cellular necrosis is re-simulated based on the user input, and the visualizations of the computed necrosis region and the temperature maps are updated. | 01-28-2016 |
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| 20090170237 | Printed organic logic circuits using an organic semiconductor as a resistive load device - A method of forming an organic inverter includes providing a first metal layer having a first portion for coupling a source of an OFET to a first power supply voltage, a second portion for coupling a drain of the OFET to an output terminal and a first load resistor terminal, and a third portion for coupling a second load resistor terminal to a second power supply voltage, providing a semiconductor layer for overlapping a portion of the first and second first metal layer portions to form an OFET active area, and for overlapping a portion of the second and third metal layer portions to form a toad resistor, providing a dielectric layer for overlapping the active area of the OFET and the semiconductor area of the load resistor to isolates the first metal layer and semiconductor area from the second metal layer, and providing a second metal layer for overlapping the active area of the OFET to form a gate of the OFET and an input terminal. | 07-02-2009 |
| 20090170238 | Printed organic logic circuits using a floating gate transister as a load device - A method of forming an organic inverter includes providing a first metal layer having a first portion for coupling a source of a first OFET to a first power supply voltage, a second portion for coupling a drain of the first OFET to an output terminal and to a source of a second OFET, and a third portion for coupling a drain of the second OFET to a second power supply voltage, providing a semiconductor layer for overlapping a portion of the first and second first metal layer portions to form a first OFET active area, and for overlapping a portion of the second and third metal layer portions to form a second OFET active area, providing a dielectric layer for overlapping the active area and isolates the first metal layer and semiconductor layer from the second metal layer, and providing a second metal layer for overlapping the active area of the first OFET to form a gate of the first OFET and an input terminal, and for overlapping the active area of the second OFET to form a floating gate for the second OFET. | 07-02-2009 |
| 20100159635 | METHOD OF PATTERNING CONDUCTIVE LAYER AND DEVICES MADE THEREBY - Methods for patterning a conductor through oxidation are provided. Devices fabricated using the method include organic transistors having a gate electrode and dielectric layer patterned by the method, source and drain electrodes, and an organic semiconducting layer. | 06-24-2010 |
| 20110101822 | Surface acoustic wave sensor and system - A surface acoustic wave sensor to measure physical, biological or chemical parameters is claimed. Using different piezoelectric substrate materials, piezoelectric substrates with different thicknesses or metallizations with different thicknesses or patterns are used to distinguish between the effects of different physical, biological or chemical parameters. | 05-05-2011 |
| 20120280736 | CIRCUIT AND METHOD FOR REDUCING THE PROPAGATION OF SINGLE EVENT TRANSIENT EFFECTS - Circuits and a corresponding method are used to eliminate or greatly reduce SET induced glitch propagation in a radiation hardened integrated circuit. A clock distribution circuit and an integrated circuit portioning can be radiation hardened using one or two latch circuits interspersed through the integrated circuit, each having two or four latch stages. | 11-08-2012 |
