Tissue Attenuation Or Impedance Measurement Or Compensation Patents (Class 600/442)
  • Patent number: 10219781
    Abstract: Provided is an ultrasound observation apparatus for generating an ultrasound image based on an ultrasound signal acquired by an ultrasound probe having an ultrasound transducer. The apparatus includes: an analysis unit that performs FFT on a sample data group having pieces of sample data in RF data generated based on the ultrasound signal, to calculate frequency spectra; a correction unit that generates, based on the frequency spectra, analysis data indicating a relationship between a distance from the ultrasound transducer and an intensity of each of the frequency spectra for each frequency component, and corrects the analysis data based on a correction amount set for each distance, the correction amount causing an intensity of reference data generated from a reference ultrasound signal to be constant regardless of the distance; and a calculation unit that calculates a frequency feature based on a frequency spectrum generated in accordance with the corrected analysis data.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: March 5, 2019
    Inventor: Shigenori Kozai
  • Patent number: 10206661
    Abstract: Embodiments provided herein generally relate to improved ultrasound visualization. In some embodiments, interoperative ultrasound displays may be enhanced for more accurate identification of cancerous and non-cancerous tissues.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: February 19, 2019
    Assignee: Empire Technology Development LLC
    Inventor: Richard J. Mammone
  • Patent number: 10064563
    Abstract: The disclosed subject matter related to methods and apparatus for determining brain swelling in a patient as well as predicting an increase in intracranial pressure in the patient. The apparatus can include a transducer such as an ultrasound transducer communicatively connected to a controller via wires or via wireless communications device(s). A monitor and/or alarm device can be provided to notify a practitioner when the controller has determined brain swelling is occurring and/or when an imminent increase in intracranial pressure is likely to occur.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: September 4, 2018
    Inventor: Kirk Watson Beach
  • Patent number: 10018712
    Abstract: This invention relates to a method of analyzing an ultrasound signal. The method comprises obtaining a time series of sequential data frames associated with an ultrasound signal reflected from and/or backscattered from a fixed location of a material under investigation, each data frame comprising a plurality of samples of the ultrasound signal, and subjecting to an analysis a sequence of one or more samples of the ultrasound signal, or a sequence of at least one parameter derived from one or more samples of the ultrasound signal, wherein a result of the analysis is related to one or properties or characteristics of the material. In one embodiment the method may be used for detecting, diagnosing, and/or assessing cancer and/or abnormalities in biological tissue.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: July 10, 2018
    Assignee: Queen's University at Kingston
    Inventors: Mehdi Moradi, Purang Abolmaesumi, Parvin Mousavi, Eric Sauerbrei, Robert Siemens, Phillip Isotalo
  • Patent number: 9901376
    Abstract: A method for estimating at least one of a fastener-hole depth and a fastener length prior to forming a hole in a bone can include selecting a position on a proximal side of a proximal cortical bone layer for forming the hole, transmitting a transmitted wave into the bone from the selected position, and receiving a reflected wave at the selected position after the transmitted wave has been reflected by a distal cortical bone layer. The method can further include determining a distance from the selected position to the distal cortical bone layer based on times at which the transmitted wave is transmitted and the reflected wave is received, and estimating the at least one of the fastener-hole depth and the fastener length based on the distance to the distal cortical bone layer.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 27, 2018
    Assignee: Biomet Manufacturng, LLC
    Inventor: Benjamin P. Heilman
  • Patent number: 9880271
    Abstract: An ultrasonic diagnostic imaging system scans a plurality of planar slices in a volumetric region which are parallel to each other. Following detection of the image data of the slices the slice data is combined by projecting the data in the elevation dimension to produce a “thick slice” image. Combining may be by means of an averaging or maximum intensity detection or weighting process or by raycasting in the elevation dimension in a volumetric rendering process. Thick slice images are displayed at a high frame rate of display by combining a newly acquired slice with slices previously acquired from different elevational planes which were used in a previous combination. A new thick slice image may be produced each time at least one of the slice images is updated by a newly acquired slice. Frame rate is further improved by multiline acquisition of the slices.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: January 30, 2018
    Inventor: Karl Thiele
  • Patent number: 9772313
    Abstract: A method and apparatus for identifying shim geometries. A first part and a second part are assembled with a couplant positioned between the first part and the second part at a shim location, at which a shim is to be installed, to form an assembly. A pulse of ultrasonic energy is sent into the assembly at each of a set of selected locations along the assembly corresponding to the shim location using an ultrasonic device. A plurality of echoes is detected for each of the set of selected locations using data generated by the ultrasonic device in response to the ultrasonic device receiving reflections of the ultrasonic energy. A geometry for the shim is identified based on the plurality of echoes detected at each selected location of the set of selected locations.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: September 26, 2017
    Inventor: Adriana Willempje Blom
  • Patent number: 9743911
    Abstract: The present invention relates to method and system for automatic control of image quality in imaging of an object using, for example, an ultrasound system. The method comprises transmitting image generating signals into the object using selected system parameter sets of the imaging system. The imaging system has a number of different system parameter sets based on an image ranking measure reflecting a subjective expert opinion of a pre-defined set of images. The captured images are analyzed with respect to at least one image quality feature to determine an image quality metric for each image. The respective image quality metric for each image are analyzed to identify an image associated with a highest image quality metric and the system parameter set used for generating the image associated with the highest image quality metric can be selected as system parameter set for imaging of the object.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: August 29, 2017
    Inventors: Martin Hedlund, Gunnar Farnebäck, Martin Kempe, Sharok Kimiaei, Peter Kövamees
  • Patent number: 9649034
    Abstract: A photoacoustic imaging apparatus is equipped with an extracting section that extracts position data regarding the positions of each of a plurality of peaks in electrical signals that photoacoustic waves have been converted into, and positive/negative data that indicates whether the peaks are positive or negative. An image generating section administers chromatic adjustments to an image region corresponding to a signal region sandwiched between adjacent peaks based on the position data in the case that the positive/negative data for the adjacent peaks are in the order of positive then negative in temporal series, in order to facilitate discrimination of the pair of adjacent peaks and the signal region as being a single tissue system. Thereby, discrimination of a region between two lines is facilitated in photoacoustic imaging, even in cases that the boundary between a comparatively large tissue system and another tissue system is displayed as two lines.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: May 16, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Kaku Irisawa
  • Patent number: 9615814
    Abstract: An invention is disclosed for locating a region of interest in the calcaneus. A pair of ultrasound transducers are positioned on the medial and lateral sides of the heel, respectively. The positioning is based on a size of a portion of the body of a subject upon whom the ultrasound assessment of the calcaneus is to be made. In a presently preferred embodiment, the length of the foot from the back to the head of the first metatarsal is used in conjunction with a proportionality constant and an angle, to position the pair of transducers. The positioning so obtained facilitates (i) reproducible measurements and (ii) comparisons of the results obtained in one person with another, because relatively analogous portions of the highly heterogeneous calcanei are assessed in both. In an alternative embodiment, a single transducer is positioned similarly on the heel, operating in pulse-echo mode.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: April 11, 2017
    Assignee: CyberLogic, Inc.
    Inventors: Gangming Luo, Jonathan J. Kaufman
  • Patent number: 9603583
    Abstract: A method of analyzing elastography of tissue using a one-dimensional (1D) ultrasound probe. The method includes: acquiring two-dimensional (2D) ultrasound images with respect to a region of interest (ROI) of an object to be diagnosed, to which a shear wave is induced, using the 1D ultrasound probe; measuring a displacement of the shear wave from the acquired 2D ultrasound images; estimating a change rate in the displacement of the shear wave along a y-axis direction orthogonal to a 2D plane on which the 2D ultrasound images are shown, using the measured displacement; and analyzing elastography information of tissue in the ROI using the measured displacement and the estimated displacement change rate.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: March 28, 2017
    Inventors: Ki-wan Choi, Ji-young Park, Hyoung-ki Lee
  • Patent number: 9585630
    Abstract: An ultrasonic measurement apparatus detects a plurality of feature points in a B-mode image acquired by ultrasonic measurement. The feature point detection is repeatedly performed for each measurement frame. Then, a displacement vector of each feature point between measurement frames that are temporally adjacent (consecutive) to each other is calculated. Then, a displacement direction is calculated based on the displacement vector for each feature point. An intersection of the displacement direction lines is detected as a cross-sectional center position of a blood vessel.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: March 7, 2017
    Inventor: Takashi Hyuga
  • Patent number: 9507036
    Abstract: A method is provided for inspecting a zone, termed the zone of interest, whose characteristics are known at least partially, to detect at least one element included in the zone of interest, the method including: a first detection providing, through a time reversal method, a first signal relating to the position of the element for a first emission point, and at least one second detection providing, through a time reversal method, at least one second signal relating to the position of the element for a second emission point different from the first emission point. The method furthermore includes a multiplication of the first detection signal with the second detection signal to provide a third detection signal which is more accurate than the first and the second detection signal. A system implementing this method is also provided.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: November 29, 2016
    Inventors: Frederic Nataf, Franck Assous, Marie Kray
  • Patent number: 9404899
    Abstract: Methods and apparatus for an acoustic source for directing acoustic energy to ensonify a container, a sensor to detect acoustic energy from the acoustic source affected by an object in the container without contacting the container, and a processing module to process the detected acoustic energy from the sensor to identify the object in the container.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: August 2, 2016
    Assignee: Raytheon Company
    Inventors: Courtney Konopka, James A. Wurzbach, Manuel T. Silvia
  • Patent number: 9380992
    Abstract: 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.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: July 5, 2016
    Assignee: General Electric Company
    Inventors: Anne Lindsay Hall, Todor Sheljaskow
  • Patent number: 9360550
    Abstract: An ultrasonic observation apparatus includes: a first conversion unit that converts an ultrasonic signal as a time domain signal reflected from a specimen into a frequency domain signal; a regression analysis unit that calculates a regression expression for the frequency domain signal; an attenuation correction coefficient calculation unit that calculates an attenuation correction coefficient which is obtained by dividing a difference between first-order coefficients in the regression expressions at two points having different reception depths by a difference between the reception depths at the two points; an attenuation correction processing unit that performs attenuation correction processing on the frequency domain signal based on the attenuation correction coefficient; a second conversion unit that converts the frequency domain signal after the attenuation correction processing, into a second time domain signal; and an image data generation unit that generates ultrasonic image data based on the second tim
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: June 7, 2016
    Inventor: Hironaka Miyaki
  • Patent number: 9341599
    Abstract: An ultrasonic flaw detection method to detect flaws on an inner surface of a metallic pipe using ultrasonic waves includes a waveform hold step that acquires and holds waveform data of an echo signal when an ultrasonic probe that generates ultrasonic signals toward the inner surface and the metallic pipe are moved relative to each other, a signal analyzing step that calculates a path length up to receiving an echo signal from the inner surface and a change rate of the path length based on the waveform data held, and a flaw detecting step that detects flaws on the inner surface based on the path length and the change rate of the path length.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: May 17, 2016
    Assignee: JFE Steel Corporation
    Inventors: Yukinori Iizuka, Takafumi Ozeki, Yutaka Matsui
  • Patent number: 9265481
    Abstract: A system and method are disclosed for providing an equalized ultrasound echo signal for the rendering intravascular images. The system includes an ultrasound catheter including an ultrasound transducer probe. An intravascular ultrasound console receives an ultrasound echo signal corresponding to reflections of an ultrasound signal by backscatterers. An ultrasound echo signal time-gain compensation equalizer compensates the ultrasound echo signal according to sub-bands within a frequency response spectrum of the ultrasound echo signal. After applying selective amplifier gains on the sub-bands, the sub-band signals are combined to create an equalized ultrasound echo signal.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: February 23, 2016
    Assignee: Volcano Corporation
    Inventors: Andrew Hancock, Dale Gene Dorando
  • Patent number: 9207321
    Abstract: Disclosed is an ultrasound system including a variable lookup table. The ultrasound system includes the variable lookup table, a data acquiring unit to acquire ultrasound data, a lookup table generating unit to generate a variable lookup table according to the acquired ultrasound data, a three-dimensional (3D) rendering unit to perform 3D rendering with reference to the generated variable lookup table, and a display unit to display the 3D rendering result.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: December 8, 2015
    Inventor: Sung Yoon Kim
  • Patent number: 9078593
    Abstract: An ultrasound probe device including an array of transducers, at least one of which is movable relative to at least one of the other transducers. Each movable transducer may be movable relative to at least one of the other transducers along one axis of movement only, preferably parallel with an initial direction of travel of emitted ultrasound waves relative to the device.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: July 14, 2015
    Inventor: James Alastair Southern
  • Patent number: 9028414
    Abstract: An ultrasonic observation apparatus is provided with a signal amplifier which amplifies a signal of an ultrasonic wave received from a sample with an amplification factor according to a receiving depth in order to use the signal in generating a B-mode image, a B-mode image data generator which generates B-mode image data in which the amplitude of the signal of the ultrasonic wave amplified by the signal amplifier is converted into brightness for display, an amplification corrector which performs correction to cancel the influence of the amplification by the signal amplifier in order to make the amplification factor constant with respect to the signal of the ultrasonic wave amplified by the signal amplifier regardless of the receiving depth, a frequency analyzer which calculates a frequency spectrum by analyzing the frequency of the signal of the ultrasonic wave corrected by the amplification corrector, and a feature data extractor which extracts feature data of the sample by performing an approximation proces
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: May 12, 2015
    Assignee: Olympus Medical Systems Corp.
    Inventor: Hironaka Miyaki
  • Patent number: 9005126
    Abstract: Tissue Pulsatility Imaging (TPI) is an ultrasonic technique developed to measure tissue displacement or strain in the brain due to blood flow over the cardiac and respiratory cycles. Such measurements can be used to facilitate the mapping of brain function as well as to monitor cerebral vasoreactivity. Significantly, because tissue scatters ultrasound to a greater extend than does blood, using ultrasound to measure tissue displacement or strain in the brain is easier to implement than using ultrasound to measure blood flow in the brain. Significantly, transcranial Doppler sonography (TCD) has been used to measure blood flow in the brain to map brain function and monitor cerebral vasoreactivity; however, TCD can only acquire data through the three acoustic windows in the skull, limiting the usefulness of TCD. TPI is not so limited.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: April 14, 2015
    Assignee: University of Washington
    Inventors: Kirk Beach, John C. Kucewicz, Barbrina Dunmire
  • Publication number: 20150065880
    Abstract: An estimated value of sound velocity of a subject interior is derived more stably and with higher accuracy. A phasing processing section provides, to each of received signals that were generated by piezoelectric elements respectively, respective delay times that were computed on the basis of each of plural set sound velocities, and phases the received signals per set sound velocity. A degree of similarity deriving section derives, for each of the set sound velocities, a degree of mutual similarity among received signals that were phased by the phasing processing section. An optimal set sound velocity deriving section derives, as an optimal set sound velocity, an estimated value of sound velocity of the subject interior on the basis of the degree of mutual similarity among the received signals of each of the set sound velocities.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 5, 2015
    Inventor: Kimito KATSUYAMA
  • Publication number: 20150005635
    Abstract: A method for categorizing whole-breast density is disclosed. The method includes the steps of exposing breast tissue to an acoustic signal; measuring a distribution of an acoustic parameter by analyzing the acoustic signal; and obtaining a measure of whole-breast density from said measuring step. An apparatus is also disclosed.
    Type: Application
    Filed: September 15, 2014
    Publication date: January 1, 2015
    Inventors: Carri Glide-Hurst, Nebjosa Duric, Peter Littrup
  • Patent number: 8917268
    Abstract: A method for automatically displaying an organ of interest includes accessing a series of medical images acquired from a first imaging modality, receiving an input that indicates an organ of interest, automatically detecting the organ of interest within at least one image in the series of medical images, automatically placing a visual indicator in the region of interest, and automatically propagating the visual indicator to at least one image that is acquired using a second different imaging modality. A medical imaging system and a non-transitory computer readable medium are also described herein.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: December 23, 2014
    Assignee: General Electric Company
    Inventors: Robert John Johnsen, Istvan Ubelhart, Ferenc Kovacs, Andras Kriston, Tamas Blaskovics
  • Patent number: 8915851
    Abstract: An ultrasound imaging apparatus and ultrasound image display method simultaneously obtain photo-acoustic information and elasticity information of a subject, and generate and display a single image having the photo-acoustic information and the elasticity information, thereby enhancing accuracy and efficiency of a diagnosis. The ultrasound imaging apparatus includes a probe to radiate light when stress is applied and when stress is not applied to the subject, and to receive a corresponding first acoustic wave signal and a second acoustic wave signal, a data acquisition unit to acquire first acoustic wave data and second acoustic wave data that each represent optical absorption rate information about the subject, an elasticity information generating unit to calculate elasticity information about the subject, an image generating unit to generate a single image having both of the optical absorption rate information and the calculated elasticity information, and a display unit to display the generated image.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: December 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kang Sik Kim
  • Publication number: 20140371589
    Abstract: A subject information obtaining apparatus includes a shape detector configured to detect the shape of a holding member holding a subject and a shape controlling unit configured to control the shape of the holding member based on result of a detection by the shape detector.
    Type: Application
    Filed: June 10, 2014
    Publication date: December 18, 2014
    Inventor: Takaaki Nakabayashi
  • Publication number: 20140350403
    Abstract: An ultrasonic imaging method includes emitting ultrasonic pulses in different directions and acquiring ultrasonic echo signals from an object, calculating an attenuation rate of the ultrasonic echo signals, correcting the acquired ultrasonic echo signals based on the attenuation rate, and outputting the corrected ultrasonic echo signals as an ultrasonic image.
    Type: Application
    Filed: May 21, 2014
    Publication date: November 27, 2014
    Inventors: Young Ihn KHO, Sun Kwon KIM, Sung Chan PARK, Hee Sae LEE
  • Patent number: 8897855
    Abstract: In an imaging procedure, sound pressure is generated by applying ultrasound to the region to be imaged in order to cause a deformation of tissue therein from at least one acquired ultrasound image data set, first data are determined that represent, with spatial resolution, the deformation of the tissue as a reaction to the sound pressure. At least one magnetic resonance image data set is acquired, from which second data are determined that represent, with spatial resolution, the deformation of the tissue as a reaction to the sound pressure. The at least one ultrasound image data set and the at least one magnetic resonance image data set are brought into registration with each other by a comparison of the first data and the second data.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: November 25, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventor: Patrick Gross
  • Patent number: 8886291
    Abstract: A dual imaging probe 300 for obtaining both ultrasound and electrical impedance data is disclosed along with methods of using the dual imaging probe 300 to interrogate tissue. An electrical impedance imaging overlay 330 is adapted to be positioned on a transducer window 304 of an ultrasound probe 320, and may be integrally formed as part of the ultrasound probe 320 or as a modular adapter for coupling with, and optionally uncoupling from, an ultrasound probe 320 to form the dual imaging probe 300. A method (FIG. 6) of reconstructing composite images using both ultrasound and electrical impedance data is described. Applications for medical diagnosis are described. A particular use for prostate imaging is described.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: November 11, 2014
    Assignee: The Trustees of Dartmouth College
    Inventors: Alex Hartov, Keith D. Paulsen
  • Patent number: 8876716
    Abstract: A method for characterizing tissue of a patient, including receiving acoustic data derived from the interaction between the tissue and the acoustic waves irradiating the tissue; generating a morphology rendering of the tissue from the acoustic data, in which the rendering represents at least one biomechanical property of the tissue; determining a prognostic parameter for a region of interest in the rendering, in which the prognostic parameter incorporates the biomechanical property; and analyzing the prognostic parameter to characterize the region of interest. In some embodiment, the method further includes introducing a contrast agent into the tissue; generating a set of enhanced morphology renderings of the tissue after introducing the contrast agent; determining an enhanced prognostic parameter from the enhanced morphology renderings; and analyzing the enhanced prognostic parameter.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: November 4, 2014
    Assignee: Delphinus Medical Technologies, Inc.
    Inventors: Nebojsa Duric, Peter John Littrup
  • Publication number: 20140276058
    Abstract: Fat fraction is estimated from shear wave propagation. Acoustic radiation force is used to generate a shear wave in tissue of interest. The attenuation, center frequency, bandwidth or other non-velocity characteristic of the shear wave is calculated and used to estimate the fat fraction.
    Type: Application
    Filed: September 6, 2013
    Publication date: September 18, 2014
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Liexiang Fan, John Benson
  • Publication number: 20140249415
    Abstract: A method for determining, in real time, the probability that target biological tissue is opposite an ultrasonic transducer, the method including: transmitting, via an ultrasonic transducer, an ultrasonic signal into biological tissue; the ultrasonic transducer receiving the transmitted ultrasonic signal which has been backscattered by the biological tissue; calculating at least two instantaneous parameters of the backscattered ultrasonic signal; calculating a predictive value of the presence of an acoustic signature of target biological tissue, the predictive value being calculated via a statistical law using the at least two calculated instantaneous parameters; estimating the probability that the target biological tissue is opposite the ultrasonic transducer, the estimation depending on the calculated predictive value and/or on at least one strength condition based on at least one of the two calculated instantaneous parameters.
    Type: Application
    Filed: July 26, 2012
    Publication date: September 4, 2014
    Applicant: ECHOSENS
    Inventors: Laurent Sandrin, Véronique Miette, Jennifer Oudry, Stéphane Audiere, Yassine Mofid
  • Patent number: 8808183
    Abstract: A system and method is provided for using ultrasound data backscattered from vascular tissue to estimate the transfer function of a catheter (including components attached thereto—e.g., IVUS console, transducer, etc.). Specifically, in accordance with a first embodiment of the present invention, a computing device is electrically connected to a catheter and used to acquire RF backscattered data from a vascular structure (e.g., a blood vessel, etc.). The backscattered ultrasound data is then used, together with an algorithm, to estimate the transfer function. The transfer function can then be used (at least in a preferred embodiment) to calculate response data for the vascular tissue (i.e., the tissue component of the backscattered ultrasound data). In a second embodiment of the present invention, an IVUS console is electrically connected to a catheter and a computing device and is used to acquire RF backscattered data from a vascular structure.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: August 19, 2014
    Assignee: The Cleveland Clinic Foundation
    Inventors: Anuja Nair, David Geoffrey Vince, Jon D. Klingensmith, Barry D. Kuban
  • Publication number: 20140228686
    Abstract: An integrated device of a patch and sensor assembly detects extravasation or infiltration. A transmitter is positioned to direct power into a body portion. A sensor is positioned to receive the power transmitted through the body portion. A substrate is attachable to an outer surface of the body portion and supports the transmitter and the sensor. A signal processor is coupled to the transmitter and the sensor for detecting a change in a fluid level in the body portion from extravasation or infiltration based on the power received by the sensor. A power supply is coupled to the transmitter and the sensor. An indicator is responsive to the signal processor to indicate a detected change in a fluid level in the body portion from extravasation or infiltration.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 14, 2014
    Inventor: Chad E. Bouton
  • Patent number: 8784317
    Abstract: A signal processing apparatus scans a beam of elastic waves into an object to be examined, acquires received waveform data of a plurality of scan lines, and performs signal processing to form a tomographic image of said object to be examined from the received waveform data of the plurality of scan lines. The signal processing apparatus includes a scan line correlation calculation part (009) that calculates a correlation value of received waveform data between a first scan line and a second scan line that has a prescribed correlation with the first scan line, for a plurality of positions on the scan lines, and a correlation change position extraction part (010) that extracts, from among the plurality of positions on said scan lines, a position at which the correlation value becomes a value different from a prescribed value as a position at which a unique region can exist.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: July 22, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirofumi Taki, Kenichi Nagae, Toru Sato
  • Patent number: 8758249
    Abstract: A method for Tissue Doppler Imaging is provided. The method for Tissue, Doppler Imaging comprises steps of: a) transmitting ultrasound signals to a target area including the tissue to be imaged, and receiving the echo signals returned from the target area; b) performing Doppler estimation on Doppler signals extracted from the echo signals, to acquire Doppler parameters of stationary tissue or nonstationary tissue or blood flow within the target area, wherein the Doppler parameters comprise at least velocity and power; c) processing the acquired power of the Doppler parameters to obtain the power related to the nonstationary tissue within the target area, so as to display the tissue motion.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: June 24, 2014
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Yu Zhang, Xin Li
  • Patent number: 8747317
    Abstract: A modular, flexible architecture for offering full-field breast ultrasound (FFBU) functionality and general-purpose ultrasound functionality in a single system is described. A conventional, general-purpose ultrasound system is modified with an FFBU toolkit to create a dual-capability ultrasound system, the dual-capability ultrasound system being able to accommodate both general-purpose ultrasound functionality and FFBU functionality, using a single ultrasound engine. Among other advantages, real-world clinical environments may enjoy cost savings for initial system procurement, space savings on clinic floors, easier and less expensive system upgrades, and the ability to use a single system and user interface for both FFBU screening and for follow-up diagnosis, biopsy, etc.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: June 10, 2014
    Assignee: U-Systems, Inc.
    Inventors: Zengpin Yu, Danhua Zhao, Thomas P. Neff, Wei Zhang, Shih-Ping Wang
  • Patent number: 8734352
    Abstract: Shear wave dispersion ultrasound vibrometry (SDUV) is implemented in some embodiments to form, from a single tracking pulse, in-parallel-directed receive lines (411-426) for making measurements of a monochromatic shear wave. In some embodiments, sampling is performed, over spatial locations by means of passes over the locations, in an interlaced pattern (600) for making measurements of the wave. In some embodiments, measurements are made of the wave and to the measurements are applied a bank of filters (S724) that are tuned to respective candidate wave speeds, all without the need to determine a difference between wave phases at different spatial locations (451-454).
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: May 27, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Michael R. Burcher, Hua Xie, Anna Teresa Fernandez, Jean-Luc Robert
  • Patent number: 8734351
    Abstract: A method of displaying an elastic image according to the present invention includes the steps of measuring ultrasound cross-section data of a cross-section region of a subject while applying compression to the subject 1 (2, 3, 4), determining distortion of tissue in the cross-section region on the basis of the ultrasound cross-section data, generating an elastic image of the cross-section region on the basis of the distortion, displaying the elastic image on a display device (7), setting a plurality of ROIs on the elastic image displayed on the display device, converting the distortion of each ROI into an index value (12), and displays the index value on the display device (8). In this way, the method enables quantitative evaluation of the hardness of body tissue of a region to be diagnosed.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: May 27, 2014
    Assignee: Hitachi Medical Corporation
    Inventors: Koji Waki, Tsuyoshi Shiina, Makoto Yamakawa, Masaru Maeda
  • Patent number: 8708912
    Abstract: Ultrasound diagnostic apparatus includes an unit 7 for forming time series tomographic images on the basis of a reflection echo signals received by ultrasound probe 2, an unit 8 for obtaining the elasticities of body tissue on the basis of the reflection echo signals and forming elasticity images on times series, an unit 9 for forming a superimposition image on time series by superposing the tomographic image on the elasticity image, an unit 43 for inputting an instruction for controlling superimposition image formation, and an unit 10 for displaying the superimposition image. The ultrasound diagnostic apparatus further includes a freezing control portion (7, 8) for outputting an image, as a frozen image, selected in response to a freezing instruction for freezing the display operation on time series of any of the tomographic image or the elasticity image input into the input unit to the superimposition image forming unit.
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: April 29, 2014
    Assignee: Hitachi Medical Corporation
    Inventors: Takashi Osaka, Takeshi Matsumura
  • Patent number: 8700133
    Abstract: A method and apparatus for inserting and monitoring the placement of a cannula tip within a peripheral vein of a human body where the cannula includes a sensor located at predetermined location and mounted on the cannula for sensing the biological material of the body to guide the insertion of the cannula tip into the vein and alerts to the withdrawal of the cannula tip from the vein in the body.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: April 15, 2014
    Assignee: Smart IV LLC
    Inventor: Lenn R. Hann
  • Patent number: 8679019
    Abstract: The invention relates to a method for measuring thicknesses of materials of multilayered structure. This method includes transmitting one or more ultrasound signals including different frequencies into a multilayered structure consisting of two or more materials with one or more ultrasound transducers, measuring materials, acoustic properties for which are different at the frequencies in use, measuring ultrasound signals reflected from the front surface and back surface of the multilayered structure with one or more ultrasound transducer and determining thicknesses of the materials within multilayered structure from the reflected ultrasound signals.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: March 25, 2014
    Assignee: Bone Index Finland Oy
    Inventors: Jukka Jurvelin, Ossi Riekkinen, Mikko Hakulinen
  • Patent number: 8672847
    Abstract: An ultrasound diagnostic apparatus comprises: a detector for detecting a direction of radial expansion/contraction of a vascular wall associated with a heartbeat in a long-axis image of the vascular wall based on amplitude information of reception signals outputted from an ultrasound probe when a first ultrasonic beam is transmitted and received to and from a blood vessel of a subject through the ultrasound probe by a transmitter/receiver; a controller for controlling the transmitter/receiver so as to transmit and receive a second ultrasonic beam parallel to the detected vascular wall expansion/contraction direction through the ultrasound probe; a tracker for tracking a movement of the vascular wall using amplitude information and phase information of the reception signals outputted from the ultrasound probe when the second ultrasonic beam is transmitted and received; and a calculator for calculating elastic characteristics of the vascular wall based on the tracked vascular wall movement.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: March 18, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Yukiya Miyachi
  • Patent number: 8672846
    Abstract: In one embodiment, an ultrasound imaging method comprises: providing a probe that includes one or more transducer elements for transmitting and receiving ultrasound waves; generating a sequence of spatially distinct transmit beams which differ in one or more of origin and angle; determining a transmit beam spacing substantially based upon a combination of actual and desired transmit beam characteristics, thereby achieving a faster echo acquisition rate compared to a transmit beam spacing based upon round-trip transmit-receive beam sampling requirements; storing coherent receive echo data, from two or more transmit beams of the spatially distinct transmit beams; combining coherent receive echo data from at least two or more transmit beams to achieve a substantially spatially invariant synthesized transmit focus at each echo location; and combining coherent receive echo data from each transmit firing to achieve dynamic receive focusing at each echo location.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: March 18, 2014
    Assignee: Zonare Medical Systems, Inc.
    Inventors: David J. Napolitano, Brian Derek DeBusschere, Glen W. McLaughlin, Larry Y. L. Mo, Ching-Hua Chou, Ting-Lan Ji, Robert W. Steins
  • Publication number: 20140073922
    Abstract: Embodiments provided herein generally relate to improved ultrasound visualization. In some embodiments, interoperative ultrasound displays may be enhanced for more accurate identification of cancerous and non-cancerous tissues.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 13, 2014
    Inventor: Richard J. Mammone
  • Publication number: 20140066767
    Abstract: A system and method of processing an ultrasound signal may include, in response to receiving a set of complex frequency samples of the ultrasound signal inclusive of content data and noise at a first noise level and being used to image an anatomical region of a body, resampling multiple subsets of complex frequency samples from the set of complex frequency samples. The resampled subsets of complex frequency samples may be resampled from a first domain into a second domain. The transformed resampled subsets of complex frequency samples may be combined in the second domain to produce a result signal with a second noise level reduced from the first noise level. An image derived from the result signal may be displayed.
    Type: Application
    Filed: August 31, 2013
    Publication date: March 6, 2014
    Applicants: Clearview Diagnostics, Inc., Rutgers, The State University of New Jersey
    Inventors: Richard Mammone, Christine Podilchuk, Lev Barinov, Ajit Jaoraj, William Hulbert
  • Patent number: 8663112
    Abstract: A method can include targeting a region of interest below a surface of skin, which contains fat lobuli and delivering ultrasound energy to the region of interest. The ultrasound energy generates a conformal lesion with said ultrasound energy on a surface of a fat lobuli. The lesion creates an opening in the surface of the fat lobuli, which allows the draining of a fluid out of the fat lobuli and through the opening. In addition, by applying ultrasound energy to fat cells to increase the temperature to between 43 degrees and 49 degrees, cell apoptosis can be realized, thereby resulting in reduction of fat.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: March 4, 2014
    Assignee: Guided Therapy Systems, LLC
    Inventors: Michael H. Slayton, Peter G. Barthe
  • Patent number: 8663113
    Abstract: A method for imaging a volume of tissue in a scan region, including: emitting, from transmitting transducers, acoustic waveforms toward the volume of tissue; detecting, with detecting transducers, a plurality acoustic signals derived from acoustic waveforms interacting with the volume of tissue; generating from the detected acoustic signals a plurality of variable attenuation maps, in which each variable attenuation map corresponds to acoustic signals detected by a respective detecting transducer and includes a plurality of variable attenuation coefficients mapped to the scan region; modifying at least a portion of the detected acoustic signals based on one or more variable attenuation maps; and generating a reflection rendering of the volume of tissue based on the modified acoustic signals.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: March 4, 2014
    Assignee: Delphinus Medical Technologies, Inc.
    Inventors: Steven P Schmidt, Cuiping Li, Olivier Roy, Ivana Jovanovic
  • Patent number: 8652047
    Abstract: The method of accurately measuring the volume of urine in a bladder includes generating a plurality of ultrasound scan planes using the received ultrasound signals; detecting distances between the front and back walls of the bladder for each scan line in the ultrasound scan planes; determining an area of the bladder using the detected distances of the scan lines for each ultrasound scan plane; generating a virtual radius of the bladder using the determined area of the bladder for each ultrasound scan plane; determining a calibration coefficient for each ultrasound scan plane using the detected distances of the scan lines; calibrating the virtual radius of the bladder for each ultrasound scan plane using the calibration coefficient; determining the volume of urine in the bladder by calculating the volume of a sphere of which the radius is the average of the calibrated virtual radii for the ultrasound scan planes.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: February 18, 2014
    Assignee: Mcube Technology Co., Ltd.
    Inventors: Jung-Hoe Kim, Seung-Tai Kim