Patents by Inventor Israel Ohana
Israel Ohana 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: 7817827Abstract: An apparatus and method for obtaining a planar image of a portion (4) of a body (5) and enhancing image quality of at least one specific organ or volume of interest located within the portion (4) of the body (5), administered with radiopharmaceutical substance radiating gamma rays, by using single photon emission imaging, for determination of functional information thereon, comprising: (a) acquiring at least one projection data of the portion (4), by means of a gamma camera detector (2); (b) determining the effective distance between the detector (2) and the specific organ of interest; (c) calculating weight values taking into account acceptance angles of the gamma camera detector (2) and the effective distance; and (d) obtaining a two dimensional image of a spatial distribution of the pharmaceutical substance within the portion (4) by mathematically analyzing the data in conjunction with weight values.Type: GrantFiled: June 20, 2004Date of Patent: October 19, 2010Assignee: Ultraspect Ltd.Inventors: Yaniv Gal, Jacob Oaknin, Shoulamit C. Shwartz, Israel Ohana
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Publication number: 20100163736Abstract: The current invention presents designs of SPECT gamma cameras without the in-out mechanical motion of the detectors. The elimination of this motion is achieved by the implementation of iterative algorithms, such as Resolution Recovery and/or Wide Beam Reconstruction, which compensate for the Line Spread Function effect due to the collimator characteristics. The use of these methods enables construction of SPECT gamma cameras with a range of novel designs, having their gamma detector (or detectors) orbiting the patient in a predetermined orbit of fixed radius. For example, the radius might be chosen as such that the majority of all patients can be scanned by the system. The shows the advantages of the invention for gamma cameras with any numbers of detectors.Type: ApplicationFiled: June 15, 2007Publication date: July 1, 2010Applicant: ULTRASPECT LTD.Inventors: Israel Ohana, Shoulamit Cohen Shwartz
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Publication number: 20070217666Abstract: An apparatus and method for obtaining a planar image of a portion (4) of a body (5) and enhancing image quality of at least one specific organ or volume of interest located within the portion (4) of the body (5), administered with radiopharmaceutical substance radiating gamma rays, by using single photon emission imaging, for determination of functional information thereon, comprising: (a) acquiring at least one projection data of the portion (4), by means of a gamma camera detector (2); (b) determining the effective distance between the detector (2) and the specific organ of interest; (c) calculating weight values taking into account acceptance angles of the gamma camera detector (2) and the effective distance; and (d) obtaining a two dimensional image of a spatial distribution of the pharmaceutical substance within the portion (4) by mathematically analyzing the data in conjunction with weight values.Type: ApplicationFiled: June 20, 2004Publication date: September 20, 2007Inventors: Yaniv Gal, Jacob Oaknin, Shoulamit Shwartz, Israel Ohana
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Patent number: 7233002Abstract: The current invention presents designs of SPECT gamma cameras without the in-out mechanical motion of the detectors. The elimination of this motion is achieved by the implementation of iterative algorithms, such as Resolution Recovery and/or Wide Beam Reconstruction, which compensate for the Line Spread Function effect due to the collimator characteristics. The use of these methods enables construction of SPECT gamma cameras with a range of novel designs, having their gamma detector (or detectors) orbiting the patient in a predetermined orbit of fixed radius. For example, the radius might be chosen as such that the majority of all patients can be scanned by the system. The advantages of the invention are applicable for gamma cameras with any numbers of detectors.Type: GrantFiled: November 25, 2004Date of Patent: June 19, 2007Assignee: Ultraspect Ltd.Inventors: Israel Ohana, Shoulamit Cohen Shwartz
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Patent number: 7109489Abstract: A method and an apparatus of obtaining and reconstructing an image of a portion of a body, administered by a radiopharmaceutical substance, by using Single-photon emission computerized tomography (SPECT) for determination of functional information thereon. The method includes acquiring gamma rays from a body by a detector, preferably with wide incident angle exceeding 5–10 degrees, and reconstructing an image of the distribution of a radiating pharmaceutical substance in the body under inspection. The relationship between the detector and the body or the examined portion thereof is generally known. By processing data from the detector while taking into consideration weight values which are functions of angles and optionally distances between different elements of the body and corresponding elements of the relative position of the body and the detector corresponding elements of this position's projection on the detector.Type: GrantFiled: September 12, 2005Date of Patent: September 19, 2006Assignee: Ultraspect Ltd.Inventors: Shoulamit C. Shwartz, Israel Ohana
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Publication number: 20060108532Abstract: The current invention presents designs of SPECT gamma cameras without the in-out mechanical motion of the detectors. The elimination of this motion is achieved by the implementation of iterative algorithms, such as Resolution Recovery and/or Wide Beam Reconstruction, which compensate for the Line Spread Function effect due to the collimator characteristics. The use of these methods enables construction of SPECT gamma cameras with a range of novel designs, having their gamma detector (or detectors) orbiting the patient in a predetermined orbit of fixed radius. For example, the radius might be chosen as such that the majority of all patients can be scanned by the system. The shows the advantages of the invention for gamma cameras with any numbers of detectors.Type: ApplicationFiled: November 25, 2004Publication date: May 25, 2006Inventors: Israel Ohana, Shoulamit Shwartz
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Publication number: 20060076496Abstract: A method and apparatus of obtaining and reconstructing an image of a portion of a body, administered by a radiopharmaceutical substance, by using Single-photon emission computerized tomography (SPECT) for determination of functional information thereon.Type: ApplicationFiled: September 12, 2005Publication date: April 13, 2006Inventors: Shoulamit Shwartz, Israel Ohana
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Patent number: 7026623Abstract: A method of diagnostic imaging in a shortened acquisition time for obtaining a reconstructed diagnostic image of a portion of a body of a human patient who was administered with dosage of radiopharmaceutical substance radiating gamma rays, using SPECT. The method comprises acquiring photons emitted from said portion of the body, by means of a detector capable of converting the photons into electric signals, wherein the total time of photon acquiring is substantially shorter than the clinically acceptable acquisition time; processing said electric signals by a position logic circuitry and thereby deriving data indicative of positions on said photon detector crystal, where the photons have impinged the detector; and reconstructing an image of a spatial distribution of the pharmaceutical substance within the portion of the body by iteratively processing said data.Type: GrantFiled: January 7, 2004Date of Patent: April 11, 2006Inventors: Jacob Oaknin, Shoulamit C. Shwartz, Israel Ohana
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Patent number: 6943355Abstract: A method and apparatus of obtaining and reconstructing an image of a portion of a body, administered by a radiopharmaceutical substance, by using Single-photon emission computerized tomography (SPECT) for determination of functional information thereon.Type: GrantFiled: August 8, 2001Date of Patent: September 13, 2005Assignee: U.C.G. TechnologiesInventors: Shoulamit C. Shwartz, Israel Ohana
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Publication number: 20050145797Abstract: A method of diagnostic imaging in a shortened acquisition time for obtaining a reconstructed diagnostic image of a portion of a body of a human patient who was administered with dosage of radiopharmaceutical substance radiating gamma rays, using SPECT. The method comprises acquiring photons emitted from said portion of the body, by means of a detector capable of converting the photons into electric signals, wherein the total time of photon acquiring is substantially shorter than the clinically acceptable acquisition time; processing said electric signals by a position logic circuitry and thereby deriving data indicative of positions on said photon detector crystal, where the photons have impinged the detector; and reconstructing an image of a spatial distribution of the pharmaceutical substance within the portion of the body by iteratively processing said data.Type: ApplicationFiled: January 7, 2004Publication date: July 7, 2005Inventors: Jacob Oaknin, Shoulamit Shwartz, Israel Ohana
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Publication number: 20030208117Abstract: A method and apparatus of obtaining and reconstructing an image of a portion of a body, administered by a radiopharmaceutical substance, by using Single-photon emission computerized tomography (SPECT) for determination of functional information thereon.Type: ApplicationFiled: January 22, 2003Publication date: November 6, 2003Inventors: Shoulamit C. Shwartz, Israel Ohana
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Patent number: 6271524Abstract: A gamma ray collimator assembly comprising a first portion and a second collimator portion, the first and second portions having different gamma ray acceptance angles.Type: GrantFiled: August 5, 1998Date of Patent: August 7, 2001Assignee: Elgems, Ltd.Inventors: Naor Wainer, Gideon Berlad, Yaron Hefetz, Dov Maor, Israel Ohana, Natan Hermony
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Patent number: 5486700Abstract: Proximity controls for controlling the proximity of a gamma camera to a patient during a scan of the patient. The proximity controls consist of two spaced apart energy screens, each comprising 200 beams, parallel to and spaced from the detector of the gamma camera. When neither screen is interrupted, the camera is moved towards the patient. When both screens are interrupted, the camera is moved away from the patient. When only the screen farthest from the detector is interrupted, the camera is braked so as not to move away from or towards the patient.Type: GrantFiled: December 27, 1993Date of Patent: January 23, 1996Assignee: Elscint Ltd.Inventors: Alex Silberklang, Israel Ohana