Articles from uspto.gov

1. Eye movement measuring apparatus, eye movement measuring method and recording medium

   Explore Article uspto.gov (Sep 7 2010) Ophthalmology , Patents

   An eye movement measuring apparatus comprises: an image forming part configured to obtain data optically to form a fundus oculi image of an eye based on the obtained data; and an image analysis part configured to analyze the formed fundus oculi image to determine eye movement of the eye. (Read Full Article)
   

   Comment on Article Mentions:   Topcon Medical Systems

2. Surgical microscope having an OCT-system

   Explore Article uspto.gov (Sep 7 2010) Microscopy , Patents , Probes

   A surgical microscope (100) has viewing beams (109a, 109b) passing through a microscope imaging optic which includes a microscope main objective system (101) having a magnification system of variable magnification. The microscope imaging optic transposes a convergent viewing beam (109a, 109b) from the object region (114) into a parallel beam. The surgical microscope includes an OCT-system (120) for examining the object region (114). The OCT-system (120) makes available an OCT-scanning beam (190) which is guided through the microscope imaging optic. (Read Full Article)
   

   Comment on Article Mentions:   Carl Zeiss Meditec   Christoph Hauger

3. Methods and devices for detecting, controlling, and predicting radiation delivery

   Explore Article uspto.gov (Sep 7 2010) Ophthalmology , Patents

   Embodiments provide method and systems for determining alignment of a patient's body part, such as an eye, in an external coordinate system of a treatment or diagnostic device, such as a radiotherapy device, so as to define a reference axis for guiding device operation. Additional embodiments provide image-based methods and systems for aligning, tracking and monitoring motion of a body part and a treatment target in relation to a radiation beam axis. Particular ophthalmic embodiments provide method and systems including an eye-contact guide device and imaging system for aligning and tracking motion of an eye and ocular treatment target in ... (Read Full Article)
   

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4. High-resolution retinal imaging using adaptive optics and Fourier-domain optical coherence tomography

   Explore Article uspto.gov (Sep 7 2010) Microscopy , Ophthalmology , Patents

   This invention permits retinal images to be acquired at high speed and with unprecedented resolution in three dimensions (4.times.4.times.6 .mu.m). The instrument achieves high lateral resolution by using adaptive optics to correct optical aberrations of the human eye in real time. High axial resolution and high speed are made possible by the use of Fourier-domain optical coherence tomography. Using this system, we have demonstrated the ability to image microscopic blood vessels and the cone photoreceptor mosaic. (Read Full Article)
   

   Comment on Article Mentions:   Lawrence Livermore National Laboratory   John S. Werner   UC Davis

5. Partial coherence interferometer with measurement ambiguity resolution

   Explore Article uspto.gov (Sep 7 2010) Ophthalmology , Patents

   A partial coherence interferometer incorporates a focusing system for resolving measurement ambiguities. A focus-sensing beam is directed through a common objective with the measurement beam of the interferometer for conveying the beams to and from a test surface. An unambiguous measuring range is equated to a predetermined range of focusing errors. (Read Full Article)
   

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6. Fundus oculi observation device, a fundus oculi image display device and a fundus oculi image display method

   Explore Article uspto.gov (Aug 31 2010) Ophthalmology , Patents

   A fundus oculi observation device comprises: a first image forming part for optically obtaining data and then forming a fluorescence image of a fundus oculi of an eye administered with a fluorescent agent in advance based on the obtained data; a second image forming part for optically obtaining data and then forming a tomographic image of the fundus oculi based on the obtained data; a display; and a controller for causing said display to display said fluorescence image formed by said first image forming part side-by-side with said tomographic image formed by said second image forming part, as well as ... (Read Full Article)
   

   Comment on Article Mentions:   Topcon Medical Systems

7. Optical fiber and broadband light source

   Explore Article uspto.gov (Aug 31 2010) Patents , Broadband Sources

   An optical fiber and a broadband light source that can generate SC light having a broader bandwidth. A broadband light source 1 is equipped with a seed light source 11 and an optical fiber 12. The seed light source 11 outputs light having a central wavelength in the wavelength range of 1500 nm to 1650 nm. The optical fiber 12 outputs supercontinuum light a result of input of the light output from the seed light source. The optical fiber 12, which has a zero dispersion wavelength in the wavelength range of 1300 nm to 1500 nm and an effective area ... (Read Full Article)
   

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8. Miniaturized imaging device including utility aperture and SSID

   Explore Article uspto.gov (Aug 31 2010) Patents

   The present invention is drawn toward miniaturized imaging devices. In one embodiment, the device can include a utility guide having at least one aperture configured for supporting utilities, and an SSID carried by the utility guide. The SSID can include an imaging array on a top surface, and a conductive element on a side surface, wherein the imaging array is electrically coupled to the conductive element. Further, a lens can be optically coupled to the imaging array, and an umbilical, including a conductive line, can be carried by the at least one aperture. The conductive line can be electrically coupled ... (Read Full Article)
   

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9. Method and apparatus for measurement of optical properties in tissue

   Explore Article uspto.gov (Aug 31 2010) Patents , Probes

   A method of analyzing tissue includes inserting a radiation source into tissue, impinging radiation upon the tissue, obtaining a sample signal of the radiation that impinges upon the tissue, and determining a refractive index of the tissue from the sample signal. The method may also include determining at least one other optical property of the tissue. The method may provide for identifying tissue as part of a biopsy method. A device for analyzing tissue may include a low-coherence interferometer and a probe optically coupled to the interferometer, where the probe includes a radiation source. (Read Full Article)
   

   Comment on Article Mentions:   Stephen A. Boppart   Julian J. Armstrong   David D. Sampson

10. Catheter device with a position sensor system for treating a vessel blockage using image monitoring

    Explore Article uspto.gov (Aug 31 2010) Cardiology , Patents

    The invention relates to a catheter device, with a position sensor system, for treatment of a partial or complete vessel blockage under image monitoring, with the catheter device featuring a treatment catheter of a vessel blockage, especially by removal or destruction of plaque and/or expansion of the vessel, which is embodied as an integrated unit, especially as a combination catheter, with an OCT catheter and an IVUS catheter for image monitoring and with the position sensor system. (Read Full Article)
    

    Comment on Article Mentions:   Siemens

11. Processes, arrangements and systems for providing a fiber layer thickness map based on optical coherence tomography images

    Explore Article uspto.gov (Aug 24 2010) Patents

    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 ... (Read Full Article)
    

    Comment on Article Mentions:   Johannes F. de Boer   Massachusetts General Hospital   Harvard University

12. OCT using spectrally resolved bandwidth

    Explore Article uspto.gov (Aug 24 2010) Patents

    An apparatus is disclosed for studying an object based on at least one of polarization, space, position or angle of light that has reflected from the object. An optical tomographic instrumentation of the apparatus includes a light source coupled to a source path, a sample path, a reference path, and a detection path, wherein the light source generates a spectrally resolved bandwidth. The spectrally resolved bandwidth includes a plurality of spectrally resolved cells and a detector in the detection path for analyzing light reflected from an object in the sample path and the light reflected in the reference path based ... (Read Full Article)
    

    Comment on Article Mentions:   Thomas E. Milner   Marc D. Feldman   University of Texas at Austin

13. Tomography system and method of adjusting quality of image obtained by optical tomography system

    Explore Article uspto.gov (Aug 17 2010) Patents

    In an optical tomography system, a polarization changing system which converts linearly polarized light too non-linearly polarized light is provided in at least one of a light source unit, an optical path from the light source unit to a light dividing system, the optical path of the measuring light from the light dividing system to an object, the optical path of the reflected light from the object to the combining system and the optical path of the reference light from the light dividing system to the combining system. The polarization changing system is, for instance, a polarization-preserving optical fiber which ... (Read Full Article)
    

    Comment on Article Mentions:   Fujifilm Medical Systems

14. Pattern recognition systems and methods

    Explore Article uspto.gov (Aug 17 2010) Patents

    The invention is generally directed to imaging systems, and more particularly to systems and methods for pattern recognition. In one embodiment, a medical imaging system includes an imaging device and a computer-usable medium, electrically coupled to the imaging device, having a sequence of instructions which, when executed by a processor, causes said processor to execute a process including generating an image from signals received by the imaging device, deconvolving the image, and then extracting a desired pattern from the deconvolved image. (Read Full Article)
    

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15. Elasticity and viscosity measuring apparatus

    Explore Article uspto.gov (Aug 17 2010) Patents

    Brillouin scattered light is used to measure the distribution of elasticity and viscosity in a measurement object without contact and in a noninvasive and simpler manner. Measuring light emitted from a light source is directed from a light probe onto a measurement object, and scattered light is received by the light probe. A control computer analyzes the light spectrum of scattered light received by the light probe, calculates at least one parameter selected from the center frequency and the linewidth of the elastic wave scattered components as viscoelastic information, matches the viscoelastic information with the position of a target area ... (Read Full Article)
    

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16. Methods and devices for removing material from a body lumen

    Explore Article uspto.gov (Aug 10 2010) Cardiology , Patents

    A debulking catheter comprising a debulking assembly for debulking a body lumen. The catheters of the present invention can include a flexible proximal portion coupled to a rigid distal portion. A tissue debulking assembly can be disposed within the rigid portion to debulk the body lumen. In exemplary embodiments, the rigid portion is rotatably coupled to the flexible portion such that rotation or deflection of the rigid portion, relative to the flexible portion, can expose the tissue debulking assembly through a window in the catheter to debulk the body lumen. (Read Full Article)
    

    Comment on Article Mentions:   FoxHollow Technologies   John B. Simpson

17. Method and apparatus for tear film measurement

    Explore Article uspto.gov (Aug 10 2010) Ophthalmology , Patents

    Tear film is measured without contacting the eye by comparing reflectance from the eye when the tear film is undisturbed with reflectance from the eye when the when the tear film is disturbed. If the reflectance levels differ somewhat, it is an indication that a healthy tear film exhibiting good specular reflection was present initially and was disturbed by the air pulse. However, if the reflectance levels are close to one another, it is an indication that a less-than-normal tear film was present initially (dry eye). In a described embodiment, tear film is disturbed by an air pulse directed at ... (Read Full Article)
    

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18. Device for generating polychromatic light with a continuous spectrum

    Explore Article uspto.gov (Aug 3 2010) Patents , Broadband Sources

    A dedicated polychromatic light generating device including optical pumping devices used to deliver radiation with at least two different excitation wavelengths and a light-guiding device used to deliver polychromatic light at an output when excited by the radiation in a non-linear interaction regime. (Read Full Article)
    

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19. Optical coherence tomography apparatus based on spectral interference and an ophthalmic apparatus

    Explore Article uspto.gov (Aug 3 2010) Ophthalmology , Patents

    An optical coherence tomography apparatus based on spectral interference where object information can be speedily obtained and an information acquisition range in a depth direction can be enlarged, and an ophthalmic apparatus. The apparatus includes a first optical system for projecting light with short coherence length onto an object to form object light which is reflection light from the object, a second optical system for projecting light with short coherence length onto a reference surface to form reference light which is reflection light from the surface, an optical system for synthesizing the object light and the reference light to be ... (Read Full Article)
    

    Comment on Article Mentions:   Nidek

20. Ocular property measuring apparatus and method therefor

    Explore Article uspto.gov (Aug 3 2010) Ophthalmology , Patents

    A method and apparatus for measuring an apparent depth (1) of a section of an eye (30) are disclosed. Light is focused to a measurement location (15) proximate or within the eye. The measurement location is scanned through the section and upon passing through first and second refractive index interfaces defining the section, a respective reflected light signal is detected, from which apparent positions of the first and second interfaces may be derived. Preferably, a confocal scanning arrangement is employed. Preferably, the section is the aqueous humor (34) of the eye (30). From changes in its refractive index (n) corresponding ... (Read Full Article)
    

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21. Methods for mapping tissue with optical coherence tomography data

    Explore Article uspto.gov (Aug 3 2010) Patents

    Various methods are disclosed for mapping optical coherence tomography (OCT) data to facilitate review and diagnosis. In one aspect, high resolution 2D line scans are obtained along with lower density 3D cube scans and displayed in a manner to provide context to the clinician. In another aspect, OCT data is analyzed to provide information about non-uniformities of the tissue. Binary image maps of maps useful for determining tautness of membranes are also disclosed. (Read Full Article)
    

    Comment on Article Mentions:   Matthew J. Everett   Carl Zeiss Meditec

22. Object information acquisition apparatus and object information acquisition method

    Explore Article uspto.gov (Jul 27 2010) Patents

    An object information acquisition apparatus for acquiring information on the inside of an object includes an electromagnetic wave generation unit capable of outputting a terahertz wave and of changing the output intensity, an irradiation unit that irradiates an electromagnetic wave onto an object, a scanning unit and a detection unit that detects the electromagnetic wave irradiated onto the object. The scanning unit changes the relative positions of the irradiated electromagnetic wave and the object. The detection unit detects the electromagnetic wave transmitted through or reflected by the object as a result of interaction of the object and the electromagnetic wave. (Read Full Article)
    

    Comment on Article Mentions:   Canon Medical Systems

23. System and method for identifying tissue using low-coherence interferometry

    Explore Article uspto.gov (Jul 20 2010) Probes

    An apparatus for needle biopsy with real time tissue differentiation using one dimensional interferometric ranging imaging, comprising a biopsy device having a barrel and a needle, an optical fiber inserted in the needle, and a fiber optic imaging system connected to the optical fiber. The imaging system obtains images and compares the optical properties and patterns to a database of normalized tissue sample images to determine different tissue types. The physician performing the biopsy obtains feedback via a feedback unit associated with the biopsy device and which is connected to the imaging system. The feedback unit can provide visual, audible ... (Read Full Article)
    

    Comment on Article Mentions:   Guillermo J. Tearney   Brett E. Bouma   Massachusetts General Hospital

24. Method and apparatus for viewing through blood

    Explore Article uspto.gov (Jul 20 2010) Cardiology , Patents

    A method, apparatus, and system for viewing through blood in situ including a flexible catheter for insertion into a blood vessel, an optical assembly positioned at the distal end of the catheter, a working channel, and a control unit for regulating the opacity level of blood in the blood vessel around the distal end of the catheter and controllably injecting quantities of fluid into the blood vessel in the vicinity of the optical assembly. A local controller located at the distal end of the catheter may control functions of the optical assembly while coordinating signals and power with the control ... (Read Full Article)
    

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