Patents by Inventor Mircea Mujat
Mircea Mujat 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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Publication number: 20220400946Abstract: A method for determining a calibration factor in Doppler flowmetry velocity measurements in the living eye includes imaging the eye with Doppler flowmetry and processing data to obtain blood velocity, volume, and flow maps using Doppler flowmetry formulas that provide velocity as a mean frequency expressed in Hz, and volume and flow in arbitrary units. A selected blood vessel is probed with Doppler OCT to measure the absolute velocity of blood at that location expressed in mm/s to determine a calibration factor used to convert the velocity measured with Doppler flowmetry expressed in Hz to velocity expressed in mm/s.Type: ApplicationFiled: April 15, 2022Publication date: December 22, 2022Inventors: Mircea Mujat, Nicusor Iftimia
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Patent number: 9655521Abstract: A dual-modality apparatus for imaging of biological tissue includes a reflectance confocal microscopy (RCM) imaging apparatus and an optical coherence tomography (OCT) imaging apparatus. A first optical component reflects a first beam of light provided by a RCM imaging apparatus towards a sample and passes a second beam of light provided by an OCT imaging apparatus towards the sample, such that the first and second beam of lights share at least a portion of an imaging path.Type: GrantFiled: January 31, 2013Date of Patent: May 23, 2017Assignees: Physical Sciences, Inc., Memorial Sloan-Kettering Cancer CenterInventors: Nicusor V. Iftimia, Mircea Mujat, R. Daniel Ferguson, Ankit H. Patel, Milind Rajadhyaksha
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Publication number: 20150063406Abstract: A product critical temperature during freeze drying is determined. The product is imaged using optical coherence tomography (“OCT”). The product is freeze dried while the temperature of the product is measured. The product critical temperature is the temperature at which a product structure event occurs during freeze drying.Type: ApplicationFiled: November 13, 2014Publication date: March 5, 2015Inventors: Mircea Mujat, William J. Kessler
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Patent number: 8911144Abstract: A product critical temperature during freeze drying is determined. The product is imaged using optical coherence tomography (“OCT”). The product is freeze dried while the temperature of the product is measured. The product critical temperature is the temperature at which a product structure event occurs during freeze drying.Type: GrantFiled: April 24, 2012Date of Patent: December 16, 2014Assignee: Physical Sciences, Inc.Inventors: Mircea Mujat, William J. Kessler
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Publication number: 20140247425Abstract: An optical apparatus includes a system of optical components capable of operating in a scanning laser ophthalmoscope (SLO) mode and an optical coherence tomography (OCT) mode. The system of optical components includes a first optical module for the SLO mode, a second optical module for the OCT mode, and a first scanning device. The first optical module for the SLO mode includes a first source adapted to provide a first imaging beam for the SLO mode and a first detection device configured to receive a first signal associated with a first image of a retina of an eye. The second optical module for the OCT mode includes a second source adapted to provide a second imaging beam for the OCT mode and a second detection device configured to receive a second signal associated with a second image of the retina.Type: ApplicationFiled: February 27, 2014Publication date: September 4, 2014Applicant: Physical Sciences, Inc.Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Anket H. Patel, Nicusor V. Iftimia, Stephen Burns
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Publication number: 20140213897Abstract: A dual-modality apparatus for imaging of biological tissue includes a reflectance confocal microscopy (RCM) imaging apparatus and an optical coherence tomography (OCT) imaging apparatus. A first optical component reflects a first beam of light provided by a RCM imaging apparatus towards a sample and passes a second beam of light provided by an OCT imaging apparatus towards the sample, such that the first and second beam of lights share at least a portion of an imaging path.Type: ApplicationFiled: January 31, 2013Publication date: July 31, 2014Applicant: Physical Sciences, Inc.Inventors: Nicusor V. Iftimia, Mircea Mujat, R. Daniel Ferguson, Ankit H. Patel
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Patent number: 8696122Abstract: An optical apparatus includes a system of optical components capable of operating in a scanning laser ophthalmoscope (SLO) mode and an optical coherence tomography (OCT) mode. The system of optical components includes a first optical module for the SLO mode, a second optical module for the OCT mode, and a first scanning device. The first optical module for the SLO mode includes a first source adapted to provide a first imaging beam for the SLO mode and a first detection device configured to receive a first signal associated with a first image of a retina of an eye. The second optical module for the OCT mode includes a second source adapted to provide a second imaging beam for the OCT mode and a second detection device configured to receive a second signal associated with a second image of the retina.Type: GrantFiled: January 21, 2011Date of Patent: April 15, 2014Assignee: Physical Sciences, Inc.Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Anket H. Patel, Nicusor V. Iftimia, Stephen Burns
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Publication number: 20130229620Abstract: A retinal imaging device includes an optical system configured to (i) scan a portion of the retina of the eye with a line of light, (ii) descan reflected light from the scanned portion of the retina, and (iii) provide output light in a line focus configuration. The device includes a detection device including a linear array of asymmetric pixels having at least a 2:1 ratio of length to width, a detection device with multiple adjacent linear arrays, and/or a detection device using a time delay and integration (TDI) architecture.Type: ApplicationFiled: March 5, 2012Publication date: September 5, 2013Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Nicusor V. Iftimia
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Publication number: 20120294328Abstract: A product critical temperature during freeze drying is determined. The product is imaged using optical coherence tomography (“OCT”). The product is freeze dried while the temperature of the product is measured. The product critical temperature is the temperature at which a product structure event occurs during freeze drying.Type: ApplicationFiled: April 24, 2012Publication date: November 22, 2012Applicant: Physical Sciences, Inc.Inventors: Mircea Mujat, William J. Kessler
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Patent number: 8201943Abstract: A first optical module scans a portion of an eye with a line of light, descans reflected light from the scanned portion of the eye and confocally provides output light in a line focus configuration. A detection device detects the output light and images the portion of the eye. A second optical module detects an optical distortion and corrects the optical distortion in the line of light scanned on the portion of the eye.Type: GrantFiled: January 15, 2010Date of Patent: June 19, 2012Assignee: Physical Sciences, Inc.Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Nicusor V. Iftimia
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Publication number: 20120101390Abstract: Epithelial cancer screening can include a staining tissue with a cancer targeting agent, identifying a potentially cancerous lesion using fluorescence imaging, and imaging the potentially cancerous lesion for a cancer diagnosis using optical coherence tomography.Type: ApplicationFiled: October 20, 2011Publication date: April 26, 2012Inventors: Nicusor V. Iftimia, Niyom Lue, Daniel X. Hammer, Mircea Mujat, R. Daniel Ferguson
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Publication number: 20110234978Abstract: An optical apparatus includes a system of optical components capable of operating in a scanning laser ophthalmoscope (SLO) mode and an optical coherence tomography (OCT) mode. The system of optical components includes a first optical module for the SLO mode, a second optical module for the OCT mode, and a first scanning device. The first optical module for the SLO mode includes a first source adapted to provide a first imaging beam for the SLO mode and a first detection device configured to receive a first signal associated with a first image of a retina of an eye. The second optical module for the OCT mode includes a second source adapted to provide a second imaging beam for the OCT mode and a second detection device configured to receive a second signal associated with a second image of the retina.Type: ApplicationFiled: January 21, 2011Publication date: September 29, 2011Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Anket H. Patel, Nicusor V. Iftimia, Stephen Burns
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Patent number: 7782464Abstract: A system, arrangement, computer-accessible medium and process are provided for determining information associated with at least one portion of an anatomical structure. For example, an interference between at least one first radiation associated with a radiation directed to the anatomical structure and at least one second radiation associated with a radiation directed to a reference can be detected. Three-dimensional volumetric data can be generated for the at least one portion as a function of the interference. Further, the information can be determined which is at least one geometrical characteristic and/or at least one intensity characteristic of the portion based on the volumetric data.Type: GrantFiled: May 4, 2007Date of Patent: August 24, 2010Assignee: The General Hospital CorporationInventors: Mircea Mujat, Raymond C. Chan, Johannes F. de Boer
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Publication number: 20100195048Abstract: A first optical module scans a portion of an eye with a line of light, descans reflected light from the scanned portion of the eye and confocally provides output light in a line focus configuration. A detection device detects the output light and images the portion of the eye. A second optical module detects an optical distortion and corrects the optical distortion in the line of light scanned on the portion of the eye.Type: ApplicationFiled: January 15, 2010Publication date: August 5, 2010Applicant: Physical Sciences, Inc.Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Nicusor V. Iftimia
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Publication number: 20070263227Abstract: A system, arrangement, computer-accessible medium and process are provided for determining information associated with at least one portion of an anatomical structure. For example, an interference between at least one first radiation associated with a radiation directed to the anatomical structure and at least one second radiation associated with a radiation directed to a reference can be detected. Three-dimensional volumetric data can be generated for the at least one portion as a function of the interference. Further, the information can be determined which is at least one geometrical characteristic and/or at least one intensity characteristic of the portion based on the volumetric data.Type: ApplicationFiled: May 4, 2007Publication date: November 15, 2007Applicant: The General Hospital CorporationInventors: Mircea Mujat, Raymond Chan, Johannes De Boer
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Publication number: 20070038040Abstract: Systems, arrangements and methods for separating an electromagnetic radiation and obtaining information for a sample using an electromagnetic radiation are provided. In particular, the electromagnetic radiation can be separated into at least one first portion and at least one second portion according to at least one polarization and at least one wave-length of the electromagnetic radiation. The first and second separated portions may be simultaneously detected. Further, a first radiation can be obtained from the sample and a second radiation may be obtained from a reference, and the first and second radiations may be combined to form a further radiation, with the first and second radiations being associated with the electro-magnetic radiation. The information is provided as a function of first and second portions of the further radiations that have been previously separated and can be analyzed to extract birefringent information characterizing the sample.Type: ApplicationFiled: April 24, 2006Publication date: February 15, 2007Inventors: Abraham Cense, Mircea Mujat, Boris Park, Johannes Deboer