Patents by Inventor David Freundlich
David Freundlich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10130828Abstract: A system (10) for treating tissue within a body is configured to deliver a first level of ultrasound energy to a target tissue region (42) for a first duration resulting in the generation of micro-bubbles (56) in the target tissue region, determine one or more characteristics of the target tissue region in the presence of the micro-bubbles, and deliver a second level of ultrasound energy to the target tissue region for a second duration, wherein one or both of the second energy level and the second duration are based, at least in part, on the determined one or more characteristics of the target tissue region.Type: GrantFiled: June 19, 2006Date of Patent: November 20, 2018Assignee: INSIGHTEC LTD.Inventors: Kobi Vortman, Shuki Vitek, David Freundlich
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Patent number: 9541621Abstract: Techniques for correcting measurement artifacts in MR thermometry predict or anticipate movements of objects in or near an MR imaging region that may potentially affect a phase background and then acquire a library of reference phase images corresponding to different phase backgrounds that result from the predicted movements. For each phase image subsequently acquired, one reference phase image is selected from the library of reference phase images to serve as the baseline image for temperature measurement purposes. To avoid measurement artifacts that arise from phase wrapping, the phase shift associated with each phase image is calculated incrementally, that is, by accumulating phase increments from each pair of consecutively scanned phase images.Type: GrantFiled: January 3, 2013Date of Patent: January 10, 2017Assignee: Insightec, Ltd.Inventors: Yoav Levy, Arik Hananel, David Freundlich, Gilad Halevy, Benny Assif, Hadas Ziso
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Patent number: 9289154Abstract: Techniques for temperature measurement and correction in long-term MR thermometry utilize a known temperature distribution in an MR imaging area as a baseline for absolute temperature measurement. Phase shifts that arise from magnetic field drifts are detected in one or more portions of the MR imaging area, facilitating correction of temperature measurements in an area of interest.Type: GrantFiled: August 19, 2009Date of Patent: March 22, 2016Assignee: InSightec Ltd.Inventors: Rita Schmidt, Hadas Ziso, Benny Assif, Osnat Dogadkin, David Freundlich, Yoav Levy, Shuki Vitek
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Publication number: 20130119984Abstract: Techniques for correcting measurement artifacts in MR thermometry predict or anticipate movements of objects in or near an MR imaging region that may potentially affect a phase background and then acquire a library of reference phase images corresponding to different phase backgrounds that result from the predicted movements. For each phase image subsequently acquired, one reference phase image is selected from the library of reference phase images to serve as the baseline image for temperature measurement purposes. To avoid measurement artifacts that arise from phase wrapping, the phase shift associated with each phase image is calculated incrementally, that is, by accumulating phase increments from each pair of consecutively scanned phase images.Type: ApplicationFiled: January 3, 2013Publication date: May 16, 2013Inventors: Yoav Levy, Arik Hananel, David Freundlich, Gilad Halevy, Benny Assif, Hadas Ziso
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Patent number: 8368401Abstract: Techniques for correcting measurement artifacts in MR thermometry predict or anticipate movements of objects in or near an MR imaging region that may potentially affect a phase background and then acquire a library of reference phase images corresponding to different phase backgrounds that result from the predicted movements. For each phase image subsequently acquired, one reference phase image is selected from the library of reference phase images to serve as the baseline image for temperature measurement purposes. To avoid measurement artifacts that arise from phase wrapping, the phase shift associated with each phase image is calculated incrementally, that is, by accumulating phase increments from each pair of consecutively scanned phase images.Type: GrantFiled: November 10, 2009Date of Patent: February 5, 2013Assignee: Insightec Ltd.Inventors: Yoav Levy, Arik Hananel, David Freundlich, Gilad Halevy, Benny Assif, Hadas Ziso
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Publication number: 20120071746Abstract: During the thermal treatment of an anatomical zone of interest, tissue temperature within the zone may be determined with a computational model whose parameters are adjusted using spectroscopy-based temperature measurements at interfaces of fat and non-fat tissues.Type: ApplicationFiled: September 21, 2011Publication date: March 22, 2012Inventors: Kobi Vortman, David Freundlich, Shuki Vitek
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Publication number: 20110109309Abstract: Techniques for correcting measurement artifacts in MR thermometry predict or anticipate movements of objects in or near an MR imaging region that may potentially affect a phase background and then acquire a library of reference phase images corresponding to different phase backgrounds that result from the predicted movements. For each phase image subsequently acquired, one reference phase image is selected from the library of reference phase images to serve as the baseline image for temperature measurement purposes. To avoid measurement artifacts that arise from phase wrapping, the phase shift associated with each phase image is calculated incrementally, that is, by accumulating phase increments from each pair of consecutively scanned phase images.Type: ApplicationFiled: November 10, 2009Publication date: May 12, 2011Inventors: Yoav Levy, Arik Hananel, David Freundlich, Gilad Halevy, Benny Assif, Hadas Ziso
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Publication number: 20110046472Abstract: Techniques for temperature measurement and correction in long-term MR thermometry utilize a known temperature distribution in an MR imaging area as a baseline for absolute temperature measurement. Phase shifts that arise from magnetic field drifts are detected in one or more portions of the MR imaging area, facilitating correction of temperature measurements in an area of interest.Type: ApplicationFiled: August 19, 2009Publication date: February 24, 2011Inventors: Rita Schmidt, Hadas Ziso, Benny Assif, Osnat Dogadkin, David Freundlich, Yoav Levy, Shuki Vitek
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Publication number: 20100241036Abstract: A system (10) for treating tissue within a body is configured to deliver a first level of ultrasound energy to a target tissue region (42) for a first duration resulting in the generation of micro-bubbles (56) in the target tissue region, determine one or more characteristics of the target tissue region in the presence of the micro-bubbles, and deliver a second level of ultrasound energy to the target tissue region for a second duration, wherein one or both of the second energy level and the second duration are based, at least in part, on the determined one or more characteristics of the target tissue region.Type: ApplicationFiled: June 19, 2006Publication date: September 23, 2010Applicant: INSIGHTEC, LTDInventors: Kobi Vortman, Shuki Vitek, David Freundlich
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Publication number: 20070016039Abstract: A system for treating tissue within a body is configured to deliver a first level of ultrasound energy to a target tissue region for a first duration resulting in the generation of microbubbles in the target tissue region, determine one or more characteristics of the target tissue region in the presence of the microbubbles, and deliver a second level of ultrasound energy to the target tissue region for a second duration, wherein one or both of the second energy level and the second duration are based, at least in part, on the determined one or more characteristics of the target tissue region.Type: ApplicationFiled: June 21, 2005Publication date: January 18, 2007Inventors: Kobi Vortman, Shuki Vitek, David Freundlich
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Patent number: 6735461Abstract: Systems and methods for performing a focused ultrasound procedure monitored using magnetic resonance imaging (MRI) is provided. An MRI system uses a timing sequence for transmitting radio frequency (RF) signals and detecting magnetic resonance (MR) response signals from a patient's body in response to the RF pulse sequences. A piezoelectric transducer is driven with drive signals such that the transducer emits acoustic energy towards a target tissue region within the patient's body. Parameters of the drive signals are changed at times during the timing sequence that minimize interference with the MRI system detecting MR response signals, e.g., during transmission of RF signals by the MRI system.Type: GrantFiled: June 19, 2001Date of Patent: May 11, 2004Assignee: Insightec-Txsonics LTDInventors: Shuki Vitek, Avner Ezion, David Freundlich
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Patent number: 6618620Abstract: A thermal treatment system including a heat applying element for generating thermal doses for ablating a target mass in a patient, a controller for controlling thermal dose properties of the heat applying element, an imager for providing preliminary images of the target mass and thermal images during the treatment, and a planner for automatically constructing a treatment plan, comprising a series of treatment sites that are each represented by a set of thermal dose properties. The planner automatically constructs the treatment plan based on input information including one or more of a volume of the target mass, a distance from a skin surface of the patient to the target mass, a set of default thermal dose prediction properties, a set of user specified thermal dose prediction properties, physical properties of the heat applying elements, and images provided by the imager.Type: GrantFiled: November 28, 2000Date of Patent: September 9, 2003Assignee: TxSonics Ltd.Inventors: David Freundlich, Jacob Vortman, Roni Yagel, Shuki Vitek, Naama Brenner
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Patent number: 6582381Abstract: An ultrasound therapy system utilizes a mechanical positioning assembly to locate and aim an ultrasonic transducer. The positioner provides for roll and pitch control as well as control in the lateral and longitudinal directions. The positioner uses piezo-electric vibrational motors that can effectively operate within the field of an MRI system without interfering with its operation. The motors are capable of providing a breaking force to the drive shafts while de-energized and thus aid in preventing motor slippage or backlash. Since the motors do not affect the operation of an MRI system, the ultrasonic therapy system can be made more compact. Two sets of position encoders are used to align the positioner. Course absolute encoders and fine relative encoders are both coupled to the positioning motors and allow for precise control over the position and orientation of the ultrasonic transducer.Type: GrantFiled: July 31, 2000Date of Patent: June 24, 2003Assignee: TxSonics Ltd.Inventors: Oded Yehezkeli, David Freundlich, Nitzan Magen, Carlos Marantz, Yoav Medan, Skuki Vitek, Avi Weinreb
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Patent number: 6522142Abstract: Systems and methods using magnetic resonance imaging for monitoring the temperature of a tissue mass being heated by energy converging in a focal zone that is generally elongate and symmetrical about a focal axis. A first plurality of images of the tissue mass are acquired in a first image plane aligned substantially perpendicular to the focal axis. A cross-section of the focal zone in the first image plane is then defined from the first plurality of images. A second plurality of images are acquired of the tissue mass in a second image plane aligned substantially parallel to the focal axis, the second image plane bisecting the first image plane at approximately a midpoint of the defined focal zone cross-section.Type: GrantFiled: December 14, 2001Date of Patent: February 18, 2003Assignee: InSightec-TxSonics Ltd.Inventor: David Freundlich
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Publication number: 20020193681Abstract: Systems and methods for performing a focused ultrasound procedure monitored using magnetic resonance imaging (MRI) is provided. An MRI system uses a timing sequence for transmitting radio frequency (RF) signals and detecting magnetic resonance (MR) response signals from a patient's body in response to the RF pulse sequences. A piezoelectric transducer is driven with drive signals such that the transducer emits acoustic energy towards a target tissue region within the patient's body. Parameters of the drive signals are changed at times during the timing sequence that minimize interference with the MRI system detecting MR response signals, e.g., during transmission of RF signals by the MRI system.Type: ApplicationFiled: June 19, 2001Publication date: December 19, 2002Applicant: Insightec - TxSonics Ltd.Inventors: Shuki Vitek, Avner Ezion, David Freundlich
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Publication number: 20010028697Abstract: Apparatus for producing multiple image slice data responsive to incident radiation, comprising:Type: ApplicationFiled: May 14, 2001Publication date: October 11, 2001Inventors: Ehud Nahaliel, Ehud Dafni, Andre Feldman, David Ruimi, David Freundlich
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Patent number: 6243438Abstract: Apparatus for producing multiple image slice data responsive to incident radiation passing through an object. The apparatus includes a detector array having a plurality (p) of parallel rows of detector elements which receive such incident radiation and generate signals therefrom, each of which rows is characterized by a width measured prior to collimation in the direction perpendicular to a long dimension thereof; and signal processing circuitry which receives signals from the detector elements and which combines the signals in a first combination mode and in at least m additional combination modes. In the first combination mode, the circuitry forms a set of n groups of rows, each such group of rows having an effective group width substantially equal to the effective group width of each of the other groups in the set. In each of the m additional combination modes, the circuitry forms different sets of n groups of rows, each such set having a different effective group width common to all groups in the set.Type: GrantFiled: February 4, 1999Date of Patent: June 5, 2001Assignee: Marconi Medical Systems Isreal Ltd.Inventors: Ehud Nahaliel, Ehud Dafni, Andre Feldman, David Ruimi, David Freundlich
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Patent number: 6178220Abstract: A method for reconstructing one or more non-axial image slices in a CT scanner, comprising: acquiring X-ray attenuation data over an axial range; and processing the attenuation data to determine CT values at a plurality of points along one or more surface corresponding respectively to each one or more non-axial image slices, wherein processing the attenuation data comprises back-projecting the data directly to the plurality of points along each of the one or more surfaces.Type: GrantFiled: October 18, 1999Date of Patent: January 23, 2001Assignee: Marconi Medical Systems Israel Ltd.Inventors: David Freundlich, Alex Zaslavsky, David Ruimi
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Patent number: RE37325Abstract: A slice orientation selection arrangement for magnetic resonance imaging in planes oblique to the normal cartesian coordinates. The coordinates are rotated to applying gradient signals using Euler computations.Type: GrantFiled: January 21, 1999Date of Patent: August 14, 2001Inventors: Hanan Keren, David Freundlich
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Patent number: RE43901Abstract: A thermal treatment system including a heat applying element for generating thermal doses for ablating a target mass in a patient, a controller for controlling thermal dose properties of the heat applying element, an imager for providing preliminary images of the target mass and thermal images during the treatment, and a planner for automatically constructing a treatment plan, comprising a series of treatment sites that are each represented by a set of thermal dose properties. The planner automatically constructs the treatment plan based on input information including one or more of a volume of the target mass, a distance from a skin surface of the patient to the target mass, a set of default thermal dose prediction properties, a set of user specified thermal dose prediction properties, physical properties of the heat applying elements, and images provided by the imager.Type: GrantFiled: September 8, 2005Date of Patent: January 1, 2013Assignee: InSightec Ltd.Inventors: David Freundlich, Jacob Vortman, Roni Yagel, Shuki Vitek, Naama Brenner