Patents -Optical Coherence Tomography News

Articles in category: Patents

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1. Optical coherence tomography system and method therefor
  
  Explore uspto.gov May 21 2013 Patents
  
  A method for increasing the imaging rate for an optical coherence tomography system is disclosed. The method comprises generating an interferometric signal by interrogating each of M image points on a sample with a plurality of wavelength bands that are collectively spectrally interleaved, time encoding the interferometric signal, and sampling the time-encoded interferometric signal at a single detector.
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  Mentions: Stanford University Audrey K. Ellerbee
2. Method and apparatus for detecting contour data and/or optical characteristics of a three-dimensional semitransparent object
  
  Explore uspto.gov May 21 2013 Patents
  
  A method for detecting contour data of a three-dimensional object, where a grid of illumination points of a multi-point illumination is projected onto the object using an optical device and the illumination points are then projected back onto a sensor containing pixels. In order to improve signal-noise ratio and reduce background signal, it is proposed that a grid of illumination points of at least two multi-point illuminations are projected onto the object, that the beams of the illuminating points of are modulated in intensity and that a frequency-selective and/or phase-selective detection is performed of mutually associated first and second ...
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3. Apparatus and method for caries detection
  
  Explore uspto.gov May 21 2013 Dentistry , Patents
  
  An apparatus for imaging a tooth has at least one illumination source for providing an incident light having a first spectral range for obtaining a reflectance image of the tooth and a second spectral range for exciting a fluorescence image of the tooth. A first polarizer having a first polarization axis and a compensator in the path of the incident light of the first spectral range are disposed to direct light toward the tooth. A second polarizer is disposed to direct light obtained from the tooth toward a sensor and has a second polarization axis that is orthogonal to the ...
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4. Calibration jig for optical tomographic imaging apparatus and method for generating a calibration conversion table
  
  Explore uspto.gov May 14 2013 Patents
  
  A calibration jig allowing simple and repeatable calibration of a probe optical tomographic apparatus is disclosed. The jig includes a holding member removably attachable to an attachment section of the apparatus and a reflective surface held by the holding member. The reflective surface reflects measurement light emitted from an emitting section of the attachment section and directs reflected light back to the emitting section. If a probe of the apparatus is covered with a sheath, the jig may include a light transmitting member, which generates the same dispersion as dispersion at the sheath, between the emitting section and the reflective ...
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  Mentions: Fujifilm Medical Systems
5. Swept source OCT apparatus
  
  Explore uspto.gov May 14 2013 Patents , Tunable Sources
  
  A method of performing spectral OCT imaging on a target involves repeatedly scanning said target along a transverse scanning line with an object beam derived from an OCT interferometer having a narrowband source. The wavelength of the narrowband source is modulated over a range of wavelengths at a rate that is slow relative to the rate of scanning the target. The object beam returned from the target is detected to produce a set of data obtained from multiple scans along said scanning line over the entire range of wavelengths. The data is then processed to extract an OCT image (typically ...
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  Mentions: John A. Rogers Optos
6. Method and a system for laser photoablation within a lens
  
  Explore uspto.gov May 7 2013 Ophthalmology , Patents
  
  A method for ablating a presbyopic lens for restoring accommodation in human eye and a system thereof wherein a laser beam is directed obliquely to carry out multiple photoablations in circular way within the lens behind the iris and preferably near the edge or equator of the lens and/or in the vicinity of zonules to re-establish accommodation of the lens lost due to presbyopia.
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7. Integrated optical coherence tomography system
  
  Explore uspto.gov May 7 2013 Patents
  
  An optical detector system comprises a hermetic optoelectronic package, an optical bench installed within the optoelectronic package, a balanced detector system installed on the optical bench. The balanced detector system includes at least two optical detectors that receive interference signals. An electronic amplifier system installed within the optoelectronic package amplifies an output of at least two optical detectors. Also disclosed is an integrated optical coherence tomography system. Embodiments are provided in which the amplifiers, typically transimpedance amplifiers, are closely integrated with the optical detectors that detect the interference signals from the interferometer. Further embodiments are provided in which the interferometer ...
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  Mentions: Axsun Technologies Dale Flanders
8. Interferometric sample measurement
  
  Explore uspto.gov May 7 2013 Patents
  
  A device for the interferometric measurement of a sample, in particular the eye, including an interferometer arrangement with a first measurement beam path, through which a measurement beam falls onto the sample, and a first reference beam path, through which a reference beam runs, which is applied to the measuring beam for interference. The interferometer arrangement includes a second measuring beam path and/or second reference beam path. The optical path lengths of the second measuring beam path and/or second reference beam path are different from one of the first beam paths. The wave length difference is selected according ...
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  Mentions: Adolf F. Fercher Rainer A. Leitgeb Carl Zeiss Meditec
9. Multifunctional Laser Device
  
  Explore patentscope.wipo.int May 1 2013 Patents , Broadband Sources
  
  A multifunctional laser device configured to be applicable as such in each of: multiple photon processes, nano structuring processes, optical coherence tomography, Terahertz (THZ) spectroscopy, THz imaging; or a combination of such processes; and comprising a mode-locked linear (X or Z-folded) fs laser resonator having a repetition rate of at least 300 MHz and 600 MHz at most and, thus, a corresponding short resonator length, said fs laser resonator further being a dispersive mirrors cavity having an average negative GDD (Group Delay Dispersion) in the spectral range of the laser operation, and being arranged to generate laser pulses with a ...
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  Mentions: Femtolasers
10. MODE-LOCKED Laser Light Source Device And Optical Coherence Tomography Apparatus Using Same
  
  Explore patentscope.wipo.int May 1 2013 Patents , Broadband Sources
  
  Provided is a mode-locked laser light source device capable of implementing laser light with a narrow oscillation spectral distribution. This mode-locked laser light source device comprises: a semiconductor optical amplifier (1) wherein carriers are generated by the injection of an injection current (I) thereinto, a pulse of laser light (P) is amplified by the consumption of the carriers, and phase modulation equivalent to self-phase modulation depending on the pulse intensity of the laser light (P) occurs due to a change in the density of carriers; a sweep modulation unit (3) which makes the oscillation wavelength of the pulse of the ...
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  Mentions: Topcon Medical Systems
11. Optical Coherence Tomographic Imaging Information Acquisition Apparatus
  
  Explore patentscope.wipo.int May 1 2013 Patents
  
  A spectral domain optical coherence tomography (SD-OCT) system including: at least two super luminescent diodes (SLDs); a photoreceptor including a sensor and a spectrometer to acquire information on a target; a combiner to combine emitted beams from the SLDs and to guide the beams to the photoreceptor; a monitor to monitor the spectra of the emitted beams from the SLDs; a driver to drive the SLDs; and a controller to feedback the monitor output to the driver which has driving periods during each of which only one-to-one corresponding SLD is driven. The spectral shape of the emitted beams can be ...
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  Mentions: Canon Medical Systems
12. Light irradiation apparatus, adaptive optics apparatus, and imaging apparatus including the same
  
  Explore uspto.gov Apr 30 2013 Patents
  
  A light irradiation apparatus includes an optical power acquiring unit configured to acquire an optical power of light emitted by a light source and with which an object is irradiated; an optical power adjusting unit configured to adjust the optical power of light emitted by the light source to a predetermined optical power in accordance with an acquisition result obtained by the optical power acquiring unit; and an irradiation unit configured to irradiate the object with the light that is adjusted by the optical power adjusting unit.
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  Mentions: Canon Medical Systems
13. Inter-frame complex OCT data analysis techniques
  
  Explore uspto.gov Apr 30 2013 Patents
  
  Techniques for collecting and processing complex OCT data to detect localized motion contrast information with enhanced accuracy and sensitivity are presented. In a preferred embodiment, vector differences between complex OCT signals taken at the same location on the sample are used to detect blood flow in the retina. Additional embodiments involving non-linear intensity weighting of the motion contrast information, normalization of the vector difference amplitudes, and calculating the absolute value of the standard deviation of Doppler signal are described. Image processing techniques to enhance the images resulting from these motion contrast techniques are also presented.
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  Mentions: Utkarsh Sharma Matthew J. Everett Carl Zeiss Meditec
14. Court Ruling Takes a Stand on Essential High-Tech Patents
  
  Explore Technology Apr 29 2013 Patents
  
  The high-tech patents wars are fed by the value of patents as weapons for extracting rich sums from companies and competitors. But courts are blunting the patent weapon, at least for the kinds of patents deemed vital for communications and data-handling in devices like smartphones, tablets and online game consoles. That trend took another step with an opinion issued last Thursday by a judge for the United States District Court in Seattle. In his 207-page ruling, Judge James L. Robart took on the issue of pricing for so-called standard-essential patents. These are patents that their corporate owners have pledged to ...
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15. Method and System for Combining OCT and Ray Tracing to Create an Optical Model for Achieving a Predictive Outcome
  
  Explore patentscope.wipo.int Apr 26 2013 Patents
  
  A system and method are provided for combining the imaging capabilities of an Optical Coherence Tomography (OCT) device with the calculated results of ray tracing techniques. The combination is then used to derive a predictive refractive outcome for an optical model. The resultant optical model includes diopter power and size information for use in preoperative planning (e.g. a capsulotomy) and/or for the manufacture of an Intraocular Lens (IOL).
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16. Method And Apparatus For Optical Imaging Via Spectral Encoding
  
  Explore patentscope.wipo.int Apr 26 2013 Microscopy , Patents
  
  Exemplary method, apparatus and arrangement can be provided for obtaining information associated with a sample such as a portion of an anatomical structure. The information can be generated using first data, which can be based on a signal obtained from a location on the sample, and second data, where the second data can be obtained by combining a second signal received from the sample with a third reference signal. An image of a portion of the sample can also be generated based on the information. For example, the first data can be associated with spectral encoding microscopy data, and the ...
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  Mentions: Guillermo J. Tearney Brett E. Bouma Massachusetts General Hospital
17. Systems And Methods For SWEPT-SOURCE Optical Coherence Tomography
  
  Explore patentscope.wipo.int Apr 26 2013 Patents
  
  Systems and methods for increasing the duty cycle and/or producing interleaved pulses of alternating polarization states in swept-source optical coherence tomography (OCT) systems are considered. Embodiments including improved buffering, frequency selecting filter sharing among multiple SOAs, intracavity switching, and multiple wavelength bands are described. The unique polarization properties of the source configurations have advantages in speckle reduction, polarization-sensitive measurements, polarization state dependent phase shifts, spatial shifts, and temporal shifts in OCT measurements.
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  Mentions: Utkarsh Sharma Matthew J. Everett Carl Zeiss Meditec
18. Systems for Extended Depth Frequency Domain Optical Coherence Tomography (FDOCT) and Related Methods
  
  Explore patentscope.wipo.int Apr 26 2013 Patents
  
  Systems for extended depth frequency domain optical coherence tomography are provided including a detection system configured to sample spectral elements at substantially equal frequency intervals, wherein a spectral width associated with the sampled spectral elements is not greater than one-half of the frequency interval. Related methods are also provided herein.
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  Mentions: Eric L. Buckland Bioptigen Bradley A. Bower
19. Optical tomographic imaging apparatus and control method for the same
  
  Explore uspto.gov Apr 23 2013 Patents
  
  There is provided an optical tomographic imaging apparatus for imaging a tomographic image capable of setting characteristics of an optical system to accommodate to different positions on an object. The apparatus using an OCT system, includes: a scanning device for scanning measuring beams, an irradiating device for irradiating a different irradiation area on the object with the measuring beams scanned by the scanning device, an adjusting device for adjusting an irradiation position on the object of the measuring beams irradiated by the irradiating device, and a detecting device for detecting each combined beam produced from light interference between each of ...
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  Mentions: Canon Medical Systems Kiyoshi Yoshida
20. Intraoperative imaging system and apparatus
  
  Explore uspto.gov Apr 23 2013 Ophthalmology , Patents
  
  Systems, methods and apparatuses for intraocular imaging system are disclosed comprising an optical coherence tomography (OCT) system. The OCT system has an imaging range that may enable substantial portions of an eye to be imaged. The OCT system may be coupled to an operation microscope, such that, for example, a surgeon can visualize ocular structures like the human crystalline lens and other ocular structures such as the cornea and/or vitreous while surgical instruments are in the field of view.
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  Mentions: Marco B. Ruggeri Fabrice Manns
21. Retinal instrument
  
  Explore uspto.gov Apr 23 2013 Ophthalmology , Patents
  
  In one embodiment, the present invention provides a method of removing scar tissue from an eye that includes inserting a device including an array of micro-rods into an eye, wherein at least one glass micro-rod of the array of glass micro-rods includes a sharp feature; contacting a scar tissue with the array of micro-rods; and removing the array of micro-rods and the scar tissue from the eye. In another embodiment, the present invention provides a medical device for engaging a tissue including and an array of glass micro-rods, wherein at least one glass micro-rod of the array of glass micro-rods ...
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22. Optical coherence tomography methods and systems
  
  Explore uspto.gov Apr 23 2013 Patents
  
  Frequency domain optical coherence tomography (FD-OCT) systems and methods are provided. Thereby, a first measurement and a second measurement is performed, wherein in the first measurement an object region is illuminated by measuring light having a spectrum with a first spectral width and in the second measurement the object region is illuminated with measuring light having a spectrum with a second spectral width, wherein the first spectral width is at least 10% greater than the second spectral width. Further, during the first measurement intensities of spectral ranges of light having interacted with the object and being superimposed with reference light ...
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  Mentions: Scott A. Meyer Carl Zeiss Meditec Christoph Hauger
23. Fundus observation apparatus
  
  Explore uspto.gov Apr 16 2013 Ophthalmology , Patents
  
  A fundus observation apparatus that is capable of assisting an examiner in judging the presence or absence of abnormality in an examinee's eye based on a fundus tomographic image. The fundus observation apparatus includes an optical coherence tomography device that has an optical scanner for setting an image pickup position on a fundus of an examinee's eye, and is arranged to obtain a tomographic image of the fundus, and an information display unit that is arranged to display on a monitor the tomographic image obtained by the optical coherence tomography device and assisting information for assisting an examiner ...
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  Mentions: Nidek Toshio Murata
24. Optical coherence tomography (OCT) imaging systems for use in pediatric ophthalmic applications and related methods and computer program products
  
  Explore uspto.gov Apr 16 2013 Ophthalmology , Patents
  
  Optical coherence tomography (OCT) imaging systems for imaging an eye are provided including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path, the reference arm path having an associated reference arm path length. A sample having an associated sample arm path coupled to the source arm and reference arm paths is provided. A reference arm path length adjustment module is coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference ...
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  Mentions: Joseph A. Izatt Eric L. Buckland Bioptigen
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