Patents Examined by Francis J. Jaworski
  • Patent number: 7331925
    Abstract: A system which includes at least one ultrasound data collection device which is programmable to carry out a specific ultrasound procedure on a selected part of a human body of a patient. The resulting ultrasound data is transmitted via a local server at the site of the data collection device to the internet and from there to a web database server which processes the raw ultrasound data to produce medical result information, including ultrasound images, which is then sent to a skilled technician, who accepts the results, rejects or edits them. Accepted medical results are transmitted back to the medical practitioner, while edited medical results are reprocessed, the results of which are transmitted to the medical practitioner.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: February 19, 2008
    Assignee: Verathon, Inc.
    Inventors: Gerald J. McMorrow, William Barnard, Stephen Dudycha, Timothy Shelton, Vikram Chalana
  • Patent number: 7331926
    Abstract: Ultrasonic signals obtained at a range of angles are fit to a material independent model to derive both axial and lateral strain and thus parameters dependent on lateral strain including Poisson's ratio and shear strain.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: February 19, 2008
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Tomy Varghese, Udomchai Techavipoo, Quan Chen, James A. Zagzebski
  • Patent number: 7331927
    Abstract: A medical imaging system includes an image sensor that receives imaging signals from a region of interest, a memory coupled to the image sensor, and a processor coupled to the memory. The memory stores image data derived from the imaging signals for first and second sub-regions of the region of interest acquired during a first and second occurrence of a physiologic cycle. The processor initiates display of the first image data while the second image data is being acquired and initiates display of the first image data joined with the second image data after the second image data is acquired.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: February 19, 2008
    Assignee: General Electric Company
    Inventor: Erik Normann Steen
  • Patent number: 7329225
    Abstract: An oscillating shaft is scanned to provide images including the oscillating shaft in vivo in real-time with a real-time three-dimensional (3D) ultrasound scanner. An interventional device can be guided in vivo using an ultrasound scanner and includes a sheath having a bore therethrough from a proximal portion to a spaced-apart distal portion. A shaft has a proximal portion and a spaced-apart distal portion and is configured for insertion into the bore of the sheath. A vibrator is coupled to the proximal portion of the shaft and is configured to cause the distal portion of the shaft to oscillate at a shaft frequency. An isolator is coupled to the proximal portion of the sheath and to the vibrator, wherein the isolator is configured to reduce damping of an oscillation of the shaft by the sheath.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: February 12, 2008
    Assignee: Duke University
    Inventors: Stephen W. Smith, Matthew Fronheiser, Rebecca Booi, Patrick D. Wolf
  • Patent number: 7322936
    Abstract: In an ultrasound diagnosis apparatus, a plurality of sub arrays are defined on a 2D array transducer. The sub array shape pattern of each sub array is adaptively changed in accordance with the beam scanning direction. Each sub array is composed of a plurality of groups, each of which is composed of a plurality of transducer elements. With the change of sub array shape pattern in accordance with a beam scanning direction, the group shape pattern of each group also changes. The sub array shape changes for each sub array, and a variable region is determined by the largest outer edge of the shape changed. The variable regions partially overlap with each other among a plurality of sub arrays. On a 2D array transducer, a plurality of sub arrays are always closely coupled with each other even when each sub array shape is changed.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: January 29, 2008
    Assignee: Aloka Co., Ltd.
    Inventor: Hideki Takeuchi
  • Patent number: 7318804
    Abstract: Methods and systems for measuring mechanical property of a vascular wall and a method and system for determining health of a vascular structure are provided wherein local deformation of a vessel wall resulting from physiologic pressures with altered transmural forces is measured. A non-invasive free-hand ultrasound scanning-procedure was performed to apply external force, comparable to the force generated in measuring a subject's blood pressure, to achieve higher strains by equalizing the internal arterial baseline pressure. When the applied pressure matched the internal baseline diastolic pressure, strain and strain rate increased by a factor of 10 over a cardiac cycle. Radial arterial strain was assessed in the vessel wall over the entire deformation procedure using a phase-sensitive, two-dimensional speckle-tracking algorithm. An elastic modulus reconstruction procedure was developed to estimate the non-linear elastic properties of the vascular wall.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: January 15, 2008
    Assignee: The Regents of the University of Michigan
    Inventors: William F. Weitzel, Kang Kim, Matthew O'Donnell, Jonathan M. Rubin, Hua Xie, Xunchang Chen
  • Patent number: 7318805
    Abstract: An apparatus and method for performing treatment on an internal target region while compensating for breathing and other motion of the patient is provided in which the apparatus comprises a first imaging device for periodically generating positional data about the internal target region and a second imaging device for continuously generating positional data about one or more external markers attached to the patient's body or any external sensor such as a device for measuring air flow. The apparatus further comprises a processor that receives the positional data about the internal target region and the external markers in order to generate a correspondence between the position of the internal target region and the external markers and a treatment device that directs the treatment towards the position of the target region of the patient based on the positional data of the external markers.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: January 15, 2008
    Assignee: Accuray Incorporated
    Inventors: Achim Schweikard, John R. Adler
  • Patent number: 7318806
    Abstract: A rigid tip end section which is connected to an angle section at the fore distal end of an insertion instrument of an ultrasound endoscope is housed in a casing which can be split into a main casing and a separable head block to facilitate maintenance and service of internal component parts of the rigid tip end section. An ultrasound transducer is accommodated in a front side portion of the main casing, while endoscopic observation means including an illumination means and an optical image pickup means are fitted in an inclined wall rising obliquely upward on the rear side of the ultrasound transducer. An outlet opening of a biopsy channel outlet passage is located between the ultrasound transducer and the endoscopic observation means. The main casing is adapted to accommodate the ultrasound transducer and its wiring, while the separable head block is adapted to accommodate at least part of component parts of the endoscopic observation means.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: January 15, 2008
    Assignee: Fujinon Corporation
    Inventor: Shinichi Kohno
  • Patent number: 7316650
    Abstract: A system and method for supporting an ultrasound transducer or other medical device from a position above a patient support surface using an arched overhead boom and a tool balancer or multi-directional articulating extendable mount.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: January 8, 2008
    Inventor: Rick L Pruter
  • Patent number: 7314446
    Abstract: A medical imaging system is provided which includes a signal generator configured to obtain a trigger signal corresponding to a timing of interest, imaging equipment configured to obtain a plurality of images of a feature of interest, and a processor programmed to correlate the plurality of images with the trigger signal. Also provided is a method of correlating a plurality of medical images by obtaining a trigger signal of a timing of interest, obtaining a plurality of images of a feature of interest, and correlating the plurality of images with the trigger signal.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: January 1, 2008
    Assignee: EP MedSystems, Inc.
    Inventors: Charles Bryan Byrd, Praveen Dala-Krishna
  • Patent number: 7314445
    Abstract: A low-voltage transmit/receive switch that acts to protect sensitive low-voltage electronics from high-voltage pulse signals used to drive an ultrasonic transducer. The low-voltage transmit/receive switch comprises a series resistor and a parallel MOSFET pair. The parallel MOSFETs are low-voltage devices. The low-voltage transmit/receive switch is placed between the output of a high-voltage pulser and the input of a receive pre-amplifier. If dual high- and low-voltage pulsers are used, then the low-voltage pulser is connected so that it is also protected from the high-voltage pulse signals by the low-voltage transmit/receive switch. In an alternative embodiment, the low-voltage pulser and the receive pre-amplifier are protected from the high-voltage pulse signals by a high-voltage transmit/receive switch.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: January 1, 2008
    Assignee: General Electric Company
    Inventors: Robert G. Wodnicki, Rayette A. Fisher
  • Patent number: 7314448
    Abstract: An improved medical imaging device assembly includes an imaging transducer coupled to the distal end of a drive shaft, and a conductive wire is wrapped around a distal portion of the drive shaft, wherein the conductive wire reinforces the imaging device assembly. In one embodiment, the conductive wire is part of a sensor adapted to communicate with a medical positioning system. In another embodiment, the conductive wire is configured to be a matching circuit for the imaging transducer. The conductive wire may be configured to be in parallel with the imaging transducer or configured to be in series with the imaging transducer.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: January 1, 2008
    Assignee: SciMed Life Systems, Inc.
    Inventors: Louis J. Barbato, Isaac Ostrovsky, Paul Goll, Thomas C. Moore, Douglas M. Petty, Mark Hamm, Richard Romley
  • Patent number: 7314447
    Abstract: An ultrasound transducer assembly is disclosed having a housing, a transducer array mounted in the housing and an electronics assembly mounted in the housing, the electronics assembly including one or more sub-assemblies having heat generating components disposed thereon. The electronics sub-assemblies further include thermal conducting features which conduct heat generated by the heat generating components out of the electronics assembly where it can be further removed by other thermal management techniques. These other thermal management techniques may include techniques utilized to cool the transducer array.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: January 1, 2008
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: William J. Park, Vaughn Marian, David Petersen, Todor Sheljaskow, Mirsaid S. Boloforosh, Worth B. Walters, Sevig Ayter
  • Patent number: 7311679
    Abstract: A transducer seal designed to seal an open aperture of a transducer housing for a therapeutic ultrasound procedure. The seal has a membrane, a retainer and a mating device for locking in place with the transducer housing. The membrane is essentially transparent to ultrasound energy while being stretched taut about the retainer. The transducer seal may be made in a disposable or re-usable form.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: December 25, 2007
    Assignee: LipoSonix, Inc.
    Inventors: Charles S. Desilets, George Barrett, Jens U. Quistgaard, Gregory Paul Darlington
  • Patent number: 7311667
    Abstract: Transducer with different array configurations and methods of using the transducers are provided. An electrode layer on one side of a transducer device defines a one-dimensional array of elements. An electrode layer on an opposite side of the transducer device defines a multi-dimensional array. For example, one transducer device may be used for both two-dimensional imaging and three-dimensional imaging in response to the one-dimensional array and multi-dimensional array electrode configurations. Real time three-dimensional imaging and two-dimensional imaging may be provided with a single transducer. As another example, elements defined by one electrode configuration have a different surface area than elements defined by another electrode configuration. The different configurations on opposite sides of the transducer devices may be a same type (e.g. both one-dimensional arrays) or different types.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: December 25, 2007
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Anming He Cai, Lewis J. Thomas
  • Patent number: 7306561
    Abstract: The systems and methods described herein provide for automatic time-gain compensation of an ultrasound image with an image processing algorithm. A method of automatic time-gain compensation is provided where ultrasound image data is obtained comprising a plurality of echogenic data sets, a plurality of time-gain compensation functions are determined for the plurality of echogenic data sets, wherein each time-gain compensation function is determined from a separate echogenic data set and the time-gain compensation functions are applied to the plurality of echogenic data sets automatically without user intervention. Also provided is an ultrasound imaging system having an ultrasound imaging device configured to collect ultrasound image data and an image processing system configured to automatically time-gain compensate the collected image data.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: December 11, 2007
    Assignee: Scimed Life Systems, Inc.
    Inventor: Shashidhar Sathyanarayana
  • Patent number: 7303529
    Abstract: The difference frequency component between a first fundamental wave of frequency f and a second fundamental wave of frequency f2 is caused to interact with a second harmonic wave, thereby to attain the enhancement of a second harmonic signal, etc., whereby a reflected wave component to be imaged is extracted at a high S/N ratio. By way of example, in a case where the difference frequency component is to appear on the lower frequency side of the second harmonic wave of the first fundamental wave so as to be superposed on this second harmonic wave, the frequencies are set at f2=2.8f or so. Besides, in a case where the difference frequency component is to appear on the higher frequency side of the second harmonic wave of the first fundamental wave so as to be superposed on this second harmonic wave, the frequencies are set at f2=3.2f or so.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: December 4, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Tetsuya Kawagishi, Tomohisa Imamura, Naohisa Kamiyama
  • Patent number: 7300403
    Abstract: The invention presents solutions for large apertures of an ultrasound array under given dimension constraints given by the application for the ultrasound probe, for example by an endoluminal application. The invention has applications to annular arrays for 2D and 3D imaging, and also to linear or curvilinear arrays for 2D and 3D imaging. The invention further provides large aperture of arrays for dual frequency band operation with large difference between the dual bands.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: November 27, 2007
    Inventors: Bjørn A. J. Angelsen, Tonni F. Johansen, Rune Hansen, Peter Naesholm
  • Patent number: 7297115
    Abstract: A ultrasound platform is used to generate, process and display ultrasound images using a probe connected via a sterilizable connector. The probe is used to take ultrasound images, and can be a sterilizable finger mounted probe. The sterilizable connector includes a connector housing which has been sealed to prevent moisture from entering it, and a multi-wire cable which is electrically coupled to the probe at a first end and coupled to the connector housing at a second end. The multi-wire cable has its second end sealed with the connector housing to prevent moisture from entering the sealing between the multi-wire cable and the connector housing. A plurality of electrical contacts are formed on at least one surface of the sterilizable connector. A mating connector is used to electrically couple the sterilizable connector to a standard connector for directly connecting to the ultrasound platform.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: November 20, 2007
    Assignee: Black Toe Medical III, Inc.
    Inventors: Kenneth N. Bates, William McDonough, Ronald Schutz, Evan Dudik
  • Patent number: 7297118
    Abstract: A method and apparatus for acquiring multi-line acquisition ultrasound data. Ultrasound signals are transmitted into an area of interest. Echo signals are acquired and analyzed to produce a first data stream associated with a first receive beam. The first data stream is decimated by removing at least two consecutive data samples therefrom, while passing at least two consecutive data samples to form a first decimated data stream. Using this decimation pattern, a bandwidth of one-half to three-quarters of the data sampling rate after decimation may be achieved.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: November 20, 2007
    Assignee: GE Medical Systems Global Technology Company
    Inventor: Kjell Kristoffersen