Hall, WI
Anne L. Hall, New Berlin, WI US
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20100204580 | ULTRASOUND BREAST SCREENING DEVICE - An ultrasound breast imaging assembly includes first and second compression plates angled with respect to one another, a breast compression area defined between the first and second compression plates, at least one pivot assembly, and an ultrasound probe. The pivot assembly allows relative motion between the first and second compression plates. The ultrasound probe, which is configured to translate over one of the first and second compression plates, includes an active matrix array (AMA) positioned on one of the first and second compression plates. | 08-12-2010 |
Anne Lindsay Hall, New Berlin, WI US
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20080242996 | Method and apparatus for measuring flow in multi-dimensional ultrasound - A method and system are provided for estimating velocity of flow within an ultrasound dataset. A sample volume gate is defined on a two-dimensional (2D) image. The 2D image is based on an ultrasonic dataset. Spectral Doppler velocity estimates of flow are detected within the sample volume gate in first and second dimensions that are orthogonal with respect to each other. A true velocity estimate of the flow within the sample volume gate is determined based on the Doppler velocity estimates. | 10-02-2008 |
20080287799 | Method and apparatus for measuring volumetric flow - An ultrasound system comprises an ultrasound probe, a user interface and a processor. The ultrasound probe comprises a transducer face emitting ultrasound beams into a patient. The probe acquires a volume of ultrasound data comprising a blood vessel. The user interface defines a surface on an image that is based on the volume. The surface bisects the blood vessel and further comprises a plurality of points where at least some of the points are located at unequal distances with respect to the transducer face. The processor is configured to steer a subset of the ultrasound beams to intersect the surface at a 90 degree angle and calculate volumetric flow information through the blood vessel based on the ultrasound data corresponding to the surface. | 11-20-2008 |
20100063400 | METHOD AND APPARATUS FOR CATHETER GUIDANCE USING A COMBINATION OF ULTRASOUND AND X-RAY IMAGING - An apparatus for tracking movement of a foreign object within a subject has an X-ray fluoroscopic system with an X-ray detector and an ultrasound system that has a probe with a position sensor. A display is configured to display a static X-ray image acquired by the X-ray fluoroscopic system and a real-time ultrasound image acquired by the ultrasound system. The X-ray image and the ultrasound image each display at least a portion of the foreign object and at least a portion of surrounding area. A tracking module is configured to track movement of the foreign object within the ultrasound image and the display is further configured to display an indication of the movement of the foreign object on the X-ray image | 03-11-2010 |
20100152578 | MEDICAL IMAGING SYSTEM AND METHOD CONTAINING ULTRASOUND DOCKING PORT - An ultrasound medical imaging system and non-ultrasound medical imaging system are combined and communicate via a suitable docking port, which is supported by the non-ultrasound medical imaging system and configured to receive the ultrasound medical imaging system. The systems can communicate directly, indirectly, and/or wirelessly. Each can also be configured for cross-imaging in the other modality, displaying medical imagery from the other modality on respective and/or combined displays, and/or control by a user interface of the other and/or a common user interface. Registry between patient imagery is possible, and improved workflow is provided. | 06-17-2010 |
20100152583 | MEDICAL IMAGING SYSTEM AND METHOD CONTAINING ULTRASOUND DOCKING PORT - An ultrasound medical imaging system and non-ultrasound medical imaging system are combined and communicate via a suitable docking port, which is supported by the non-ultrasound medical imaging system and configured to receive the ultrasound medical imaging system. The systems can communicate directly, indirectly, and/or wirelessly. Each can also be configured for cross-imaging in the other modality, displaying medical imagery from the other modality on respective and/or combined displays, and/or control by a user interface of the other and/or a common user interface. Registry between patient imagery is possible, and improved workflow is provided. | 06-17-2010 |
20100246760 | COMBINING X-RAY AND ULTRASOUND IMAGING FOR ENHANCED MAMMOGRAPHY - A mammography system includes a patient support with a breast opening. Beneath the patient support, an x-ray source transmits x-rays through a breast of a patient extending through the opening. An opposing x-ray detector receives the x-rays to obtain an x-ray image of the breast. The x-ray source and x-ray detector rotate around the opening while maintaining a fixed relation relative to one another, and a container is filled with a fluid and positioned proximate to and aligned with the opening to receive the breast. An ultrasound transmitter transmits sound waves through the breast when positioned within the fluid. An opposing ultrasound receiver receives the sound waves to obtain an ultrasound image of the breast. In a preferred embodiment, the mammography system positions the ultrasound transmitter and/or ultrasound receiver at a first position when obtaining the x-ray image of the breast and a second position when obtaining the ultrasound image of the breast. In other preferred embodiments, mammography methods correspond thereto. | 09-30-2010 |
20110216957 | APPARATUS AND METHOD FOR RECONSTRUCTING AN IMAGE WITH REDUCED MOTION ARTIFACTS - A computer readable storage medium having a computer program stored thereon and representing a set of instructions that when executed by a computer causes the computer to calculate a mapping function that provides a location of each sub-volume of an imaging volume as a function of time from ultrasound data and determine a respective acquisition window for each sub-volume of the imaging volume from the mapping function. The instructions also cause the computer to reconstruct an image of the imaging volume substantially free of motion artifacts from imaging data acquired from the imaging volume. | 09-08-2011 |
20110218423 | WEARABLE ULTRASOUND PROBE ASSEMBLY AND METHOD OF MANUFACTURING SAME - A wearable ultrasound probe apparatus includes a wearable membrane. An ultrasound transducer is also included that is integrated into the wearable membrane and configured to maintain a substantially consistent contact with a surface of an object to be imaged when the object has the wearable membrane disposed thereon. | 09-08-2011 |
20110218438 | ULTRASOUND APPARATUS AND METHOD OF MANUFACTURING SAME - An ultrasound apparatus includes an ultrasound probe and a probe positioning device operably connected to the ultrasound probe. The probe positioning device is configured to provide one of an orientation and a position of the ultrasound probe during ultrasound imaging. | 09-08-2011 |
Brian J. Hall, Hudson, WI US
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20100307032 | FOOTWEAR WITH SHAPED SOLE SURFACE - The present disclosure provides a footwear having a contoured mid sole, which avoids the need for a separate insole member located within the upper of the footwear. In one embodiment the upper of the footwear includes bottom surface interfaces between the user's foot and mid sole. The present disclosure also provides related methods of manufacturing. | 12-09-2010 |
Craig R. Hall, Hartford, WI US
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20090196759 | Polymer Nanocomposites for Air Movement Devices - In one embodiment, the invention provides an air movement device having a matrix polymer and nanoparticles. In another embodiment, the invention provides a method of manufacturing an air movement device having dry-mixing about 30% to about 80% by weight matrix polymer and about 2% to about 15% by weight layered clay to form a dry mixture, extruding the mixture to form a polymer nanocomposite, and molding the polymer nanocomposite into an air movement device. In yet another embodiment, the invention provides an air movement device having about 30% to about 80% by weight polypropylene, about 3% to about 10% by weight layered clay, and about 1% to about 10% by weight maleic anhydride grafted polystyrene, wherein the air movement device has a UL 94 5VA flame retardant rating. | 08-06-2009 |
20120201680 | FAN ASSEMBLY AND METHOD - In one aspect, a fan assembly is provided that can be manufactured while producing a significantly reduced amount of scrap material. More specifically, the fan assembly utilizes a hub ring and one or more hub strips to support a plurality of blades rather than a solid center disc or end disc used by some prior approaches. In another aspect, a method is provided that includes bending a member into an annular configuration and joining end portions of the member together to rigidly fix the member in the annular configuration. The rigid annular member may be used as an end ring, a hub ring, an orifice, or other component, while producing significantly less scrap material than traditional approaches. | 08-09-2012 |
20150037154 | Fan Assembly and Method - In one aspect, a fan assembly is provided that can be manufactured while producing a significantly reduced amount of scrap material. More specifically, the fan assembly utilizes a hub ring and one or more hub strips to support a plurality of blades rather than a solid center disc or end disc used by some prior approaches. In another aspect, a method is provided that includes bending a member into an annular configuration and joining end portions of the member together to rigidly fix the member in the annular configuration. The rigid annular member may be used as an end ring, a hub ring, an orifice, or other component, while producing significantly less scrap material than traditional approaches. | 02-05-2015 |
20150260201 | Blower Assembly And Method - In one aspect, a blower assembly is provided having a housing and a cross flow fan rotatably mounted to the housing. Rotation of the fan drives fluid flow through the housing and produces an eccentric vortex of fluid flow in the housing. The fan has a circular blade support that induces fluid flow with rotation of the fan which interacts with the eccentric vortex. The circular blade support has at least one flow interrupter configured and arranged to rotate through the interaction of the eccentric vortex and the flow induced by the circular blade support to disrupt the interaction between the eccentric vortex and the flow induced by the circular blade support. In this manner, the at least one flow interrupter reduces the effect of the unstable vortex-blade support interaction on the airflow through the blower assembly which stabilizes the air loading on the blower assembly motor and reduces the noise. | 09-17-2015 |
Harlan Hall, Oregon, WI US
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20110076385 | ION EXCHANGE RESIN TREATED TO CONTROL SWELLING - The present invention provides a method and composition for loading one or more drugs in a solution onto one or more ion exchange resin particles to form a drug-loaded resin particle. The drug-loaded resin particle is separated from the solution and dried before recombining the drug-loaded resin particle with the solution to load more drugs onto the drug-loaded resin particle from the solution. | 03-31-2011 |
20110081419 | ION EXCHANGE RESIN TREATED TO CONTROL SWELLING - The present invention provides a method and composition for loading one or more drugs in a solution onto one or more ion exchange resin particles to form a drug-loaded resin particle. The drug-loaded resin particle is separated from the solution and dried before recombining the drug-loaded resin particle with the solution to load more drugs onto the drug-loaded resin particle from the solution. | 04-07-2011 |
20120064167 | MODIFIED-RELEASE PHARMACEUTICAL DRUG COMPOSITION - The present invention provides compositions and methods for a modified-release pharmaceutical drug composition having a first charged active agent and a second charged active agent at least partially surrounded by a rate controlling membrane. The first charged active agent and the second charged active agent interact to form a modified release pharmaceutical complex within the rate controlling membrane and the modified release pharmaceutical complex has a release characteristic different from the release characteristic of the first active agent or the second active agent alone. | 03-15-2012 |
James W. Hall, Princeton, WI US
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20110277433 | SUSPENDED OPERATOR PLATFORM - A suspended operator platform for use with a ride-on lawnmower or the like is connected to a rigid chassis of the ride-on lawnmower by a suspension system that has a parallelogram linkage. The operator platform supports an entire body of the operator and isolation mounts connect a seat assembly to the operator platform. Steering controls of the ride-on lawnmower are connected to the operator platform so that the steering controls move with the operator platform and are suspended and/or isolated from the chassis. The suspension system includes a course-stiffness adjuster and a fine-stiffness adjuster that for adjusting suspension stiffness to correspond to a particular operator and/or terrain. | 11-17-2011 |
Ken Hall, Manitowoc, WI US
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20140117675 | REMOVABLE ENCLOSURE FOR A TOWABLE GENERATOR - The towable power generation system includes an internal combustion engine and an alternator driven by the internal combustion engine to generate electrical power. The towable power generation system further includes a trailer configured to be attached to a vehicle that is adapted to tow the trailer. A base (e.g., a skid) is attached to the trailer such that the internal combustion engine and the alternator are mounted on the base. The trailer includes one or more axles, wheels, a frame and a tongue for attaching the trailer to a towing vehicle. An enclosure houses the internal combustion engine and the alternator. The enclosure is detachably connected to the base using fasteners such that when the fasteners are removed only the enclosure is removed from the base and every other part of the towable generator system remains in place. | 05-01-2014 |
Kim Hall, South Milwaukee, WI US
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20140287879 | TRAMPOLINE ASSEMBLY AND RELATED METHODS - A system includes a mini trampoline assembly for use in conjunction with an active learning session(s) system. The assembly includes a frame with one or more segments, a stretchable platform, and optionally a dress skirt for the trampoline. | 09-25-2014 |
Mary Hall, Waunakee, WI US
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20100281552 | SYNTHETIC OPLOPHORUS LUCIFERASES WITH ENHANCED LIGHT OUTPUT - A polynucleotide encoding a modified luciferase polypeptide. The modified luciferase polypeptide has at least 60% amino acid sequence identity to a wild-type | 11-04-2010 |
20120174242 | OPLOPHORUS-DERIVED LUCIFERASES, NOVEL COELENTERAZINE SUBSTRATES, AND METHODS OF USE - An isolated polynucleotide encoding a modified luciferase polypeptide and substrates. The OgLuc variant polypeptide has at least 60% amino acid sequence identity to SEQ ID NO: 1 and at least one amino acid substitution at a position corresponding to an amino acid in SEQ ID NO: 1. The OgLuc variant polypeptide has at least one of enhanced luminescence, enhanced signal stability, and enhanced protein stability relative to the corresponding polypeptide of the wild-type | 07-05-2012 |
20140120548 | SYNTHETIC OPLOPHORUS LUCIFERASES WITH ENHANCED LIGHT OUTPUT - A polynucleotide encoding a modified luciferase polypeptide. The modified luciferase polypeptide has at least 60% amino acid sequence identity to a wild-type | 05-01-2014 |
20140223590 | OPLOPHORUS-DERIVED LUCIFERASES, NOVEL COELENTERAZINE SUBSTRATES, AND METHODS OF USE - An isolated polynucleotide encoding a modified luciferase polypeptide and substrates. The OgLuc variant polypeptide has at least 60% amino acid sequence identity to SEQ ID NO: 1 and at least one amino acid substitution at a position corresponding to an amino acid in SEQ ID NO: 1. The OgLuc variant polypeptide has at least one of enhanced luminescence, enhanced signal stability, and enhanced protein stability relative to the corresponding polypeptide of the wild-type | 08-07-2014 |
20140348747 | ACTIVATION OF BIOLUMINESCENCE BY STRUCTURAL COMPLEMENTATION - Provided herein are compositions and methods for the assembly of a bioluminescent complex from two or more non-luminescent (e.g., substantially non-luminescent) peptide and/or polypeptide units. In particular, bioluminescent activity is conferred upon a non-luminescent polypeptide via structural complementation with another, complementary non-luminescent peptide. | 11-27-2014 |
20140363375 | ACTIVATION OF BIOLUMINESCENCE BY STRUCTURAL COMPLEMENTATION - Provided herein are compositions and methods for the assembly of a bioluminescent complex from two or more non-luminescent (e.g., substantially non-luminescent) peptide and/or polypeptide units. In particular, bioluminescent activity is conferred upon a non-luminescent polypeptide via structural complementation with another, complementary non-luminescent peptide. | 12-11-2014 |
20150337198 | COMPOSITIONS AND METHODS FOR STABILIZING LUMINOGENIC SUBSTRATES - Disclosed herein are compositions and methods for stabilizing a luminogenic substrate such as coelenterazine or a functional analog thereof. The functional analog may be furimazine. The composition may include the luminogenic substrate, a thionucleoside, and an organic solvent, in which the thionucleoside is present in an amount effective to stabilize the luminogenic composition against decomposition. The method provided herein stabilizes the luminogenic substrate against decomposition by contacting the luminogenic substrate with an effective amount of the thionucleoside in the presence of the organic solvent. Also provided herein is a kit containing the composition. | 11-26-2015 |
Mary P. Hall, Madison, WI US
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20090137019 | Thermostable luciferases and methods of production - Luciferase enzymes with greatly increased thermostability, e.g., at least half lives of 2 hours at 50° C., cDNAs encoding the novel luciferases, and hosts transformed to express the luciferases, are disclosed. Methods of producing the luciferases include recursive mutagenesis. The luciferases are used in conventional methods, some employing kits. | 05-28-2009 |
20090311769 | Thermostable luciferases and methods of production - Luciferase enzymes with greatly increased thermostability, e.g., at least half lives of 2 hours at 50° C., cDNAs encoding the novel luciferases, and hosts transformed to express the luciferases, are disclosed. Methods of producing the luciferases include recursive mutagenesis. The luciferases are used in conventional methods, some employing kits. | 12-17-2009 |
Mary P. Hall, Waunakee, WI US
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20120009647 | THERMOSTABLE LUCIFERASES AND METHODS OF PRODUCTION - Luciferase enzymes with greatly increased thermostability, e.g., at least half lives of 2 hours at 50° C., cDNAs encoding the novel luciferases, and hosts transformed to express the luciferases, are disclosed. Methods of producing the luciferases include recursive mutagenesis. The luciferases are used in conventional methods, some employing kits. | 01-12-2012 |
Matthew Clayton Hall, Madison, WI US
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20160032061 | POLYMER-GRAPHENE NANOCOMPOSITES - Provided herein is technology relating to polymer-graphene nanocomposites and particularly, but not exclusively, to methods for producing polymer-graphene nanocomposites using master batches comprising graphene and a polymer or polymer precursor. The resulting polymer-graphene nanocomposites comprise a high degree of exfoliation and dispersion of graphene nanoplatelets within the polymer matrix. | 02-04-2016 |
20160032062 | POLYMER NANOCOMPOSITES - Provided herein is technology relating to polymer nanocomposites, and particularly, but not exclusively, to polymer nanocomposites comprising two or more nanomaterials and methods of producing nanocomposites comprising two or more nanomaterials. | 02-04-2016 |
Russell W. Hall, Eau Claire, WI US
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20140050834 | GRIDDLE HAVING ATTACHED WARMING PLATE - A countertop griddle and related methods of cooking food with a countertop griddle including a warming tray. The warming tray can be rotatably attached to the countertop griddle such that the warming tray can be rotatably pivoted from a covering disposition to an intermediary disposition to an open disposition. When in the covering disposition, the warming tray can serve to protect a user from exposure to grease spatter and to receive heat conducted from a cooking surface. During cooking, the warming tray can be rotated to the intermediary disposition such that the user can manipulated the food item being prepared. Finally, the warming tray can be rotated to an open disposition defining a serving tray for receiving a cooked food item. The warming tray can be detached from the countertop griddle when the warming tray is positioned in any of the covering, intermediate or open dispositions. | 02-20-2014 |
Scott M. Hall, Sussex, WI US
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20110114457 | EXTRUDED RAIL WITH CONTAINED MOUNTING CAVITY - An extruded rail for mounting objects along the length of the rail that include an enclosed receiving and containment cavity. The extruded rail includes a receiving and containment cavity that extends from an inner surface of the rail. The receiving and containment cavity includes upper and lower walls and a back wall that define an enclosed containment area. An alignment notch is formed in the generally planar outer surface of the side rail and aligned with the receiving and containment cavity. When an object is to be attached to the rail, an opening is formed in the side rail at the alignment notch. As material is removed from the side rail during formation of the opening, the received material is entrapped within the receiving and containment cavity. Thus, the extruded rail of the disclosure receives and contains material removed during attachment of an object to the rail. | 05-19-2011 |
20150259148 | CONVEYOR FRAME ASSEMBLY WITH CROSS SUPPORTS - The present disclosure relates to a conveyor frame assembly that includes a pair of spaced side rafts joined by one or more cross supports. Each of the cross supports includes an attachment clamp such that the first and second ends of the cross support can be securely attached to an inner surface of the side rails. The attachment clamp includes a pair of attachment jaws that are joined to each other by an adjustment member. Rotation of the adjustment member causes the attachment jaws to move toward each other. As the attachment jaws move toward each other, an engagement surface fanned on each of the attachment jaws causes the side rails and cross support to move toward each other to securely attach the cross support between the side rails to allow for easy and convenient construction and field modification of the conveyor frame assembly. | 09-17-2015 |
Steven B. Hall, Racine, WI US
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20080281478 | Programmable Automatic Trim Control System For Marine Applications - A programmable automatic trim control system for marine applications preferably includes a controller, a control panel, at least one display device and a plurality of sensors. The controller receives input from the control panel and the plurality of sensors. Each display device shows various data from the controller. Each sensor monitors a single drive device, trim device or operational parameter. The controller further includes output ports connected to the drive devices and trim devices for the control thereof. The trim control system preferably includes a manual mode, a diagnostic mode, a program mode and an automatic mode. The positions and/or settings of the trim and drive devices and operational parameters are set in the program mode and recorded in the controller. Data stored in the controller is accessed and utilized by the trim control system when in the automatic mode. | 11-13-2008 |
Timothy Hall, Hudson, WI US
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20110115409 | LED EMITTER FOR OPTICAL TRAFFIC CONTROL SYSTEMS - A light emitter for a traffic control preemption system. The emitter includes a plurality of groups of infrared (IR) LEDs and a power source coupled to the groups of LEDs. A plurality of controlled current sources is coupled to the plurality of groups of LEDs, respectively. A controller is configured to trigger an IR light pulse pattern from the groups of LEDs and maintain a first level of IR radiant power from the groups of LEDs using individual control of respective current levels to the groups of LEDs in response to current sense levels from the groups of LEDs. The pulse pattern and first level of IR radiant power activate preemption in the traffic control preemption system. | 05-19-2011 |
20110115645 | LED Light Bar for Optical Traffic Control Systems - Various approaches for activating a traffic control preemption system. A light bar includes a support structure and a plurality of LED modules individually mounted on the support structure. Each LED module includes a plurality of LED groups, and in at least one of the plurality of LED modules, at least one LED group in the module is an infrared (IR) LED group, and at least one LED group in the module is a visible light LED group. A controller is coupled to each module. The controller is configured to trigger an IR light pulse pattern at a first level of IR radiant power from the at least one IR LED group. The pulse pattern and first level of IR radiant power activate preemption in a traffic control preemption system. | 05-19-2011 |
Timothy J. Hall, Madison, WI US
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20100106018 | ULTRASONIC STRAIN IMAGING DEVICE WITH SELECTABLE COST-FUNCTION - An elasticity measuring system determines tissue displacement between a pre-deformation and post-deformation image by a matching process using a cost function accepting as its arguments continuity of the tissue motion and correlation of the tissue in making the block matching. The invention allows the selection among different cost functions for different imaging situations or tissue types, to provide improved displacement calculations using a priori knowledge about the tissue and structure of tissue interfaces or information derived during the scanning process. | 04-29-2010 |
20110149060 | ELASTICITY IMAGING DEVICE WITH IMPROVED CHARACTERIZATION OF SEED DISPLACEMENT CALCULATIONS - The identification of preferred seed calculations used to guide the determination of displacement vectors in elasticity imaging may evaluate seeds using a combination of a measure of the similarity of the data of the seed in pre- and post-compression data and continuity of the data in a path in the neighborhood of the seed. This dual evaluation helps avoid downstream error propagation. | 06-23-2011 |
20120095333 | Coupled Axial and Lateral Displacement Estimation for Elasticity Imaging - The determination of axial and lateral displacement in a material subject to compression is determined by fitting a multi-dimensional model function to the match between corresponding portions of the material in two states of compression. In one embodiment, iso-contour lines in a correlation between a reference kernel and a target kernel are fit to an ellipse whose center defines the maximum correlation and hence the displacement. | 04-19-2012 |
Timothy Jon Hall, Madison, WI US
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20100222679 | METHOD AND APPARATUS FOR ASSESSING RISK OF PRETERM DELIVERY - An apparatus for assessing the risk of preterm delivery and the success of induction of labor at term uses a steered ultrasound beam to assess microstructure of the cervix revealed by backscatter power attenuation at a range of angles. It is believed that objective and precise description of cervical microstructure will reveal stage of cervical remodeling an as such may reveal risk of preterm delivery and/or success of labor induction. The backscatter power loss can be combined with elasticity measurements to provide a more precise indication of tissue structure. | 09-02-2010 |
20120330155 | Automated Ultrasonic Elasticity Image Formation with Quality Measure - Image data and E-mode images used in ultrasonic elasticity imaging may be automatically evaluated for quality to provide a single value used as operator feedback or for automatic selection of images for averaging or animation. | 12-27-2012 |
20140198961 | Automated Ultrasonic Elasticity Image Formation with Quality Measure - Image data and E-mode images used in ultrasonic elasticity imaging may be automatically evaluated for quality to provide a single value used as operator feedback or for automatic selection of images for averaging or animation. | 07-17-2014 |
20140276047 | Method and Apparatus for Quantifying Organization in Collagenous Tissue - An apparatus uses a steered ultrasound beam to assess microstructure of the cervix revealed by backscatter power variation at a range of angles and depth. Analysis of a distribution of power loss at different angles and depths referenced to the structure of the cervix may be used to characterize cervical tissue. | 09-18-2014 |
Vincent Hall, Elk Mound, WI US
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20100133942 | Permanent Magnet Arrangement for Generator Rotor - An electric generator rotor having one or more permanent magnets coupled thereon. The permanent magnets provide a constant magnetic field in the rotor at all times, therein minimizing the effect of rotor residual magnetism on the start-up characteristics of the electric generator. The type and placement of the one or more permanent magnets on the rotor and/or magnetic field confinement techniques may be utilized to control spatial distribution of magnetic field within the rotor. | 06-03-2010 |