1. Articles in category: Patents

    1-24 of 1757 1 2 3 4 ... 72 73 74 »
    1. Parallel Optical Coherence Tomography Apparatuses, Systems, And Related Methods

      Parallel Optical Coherence Tomography Apparatuses, Systems, And Related Methods

      Provided is a snapshot spectral domain optical coherence tomographer comprising: a light source providing a plurality of beamlets; a beam splitter, splitting the plurality of beamlets into a reference arm and a sample arm; a first optical system that projects the sample arm onto multiple locations of a sample; a second optical system for collection of a plurality of reflected sample beamlets; a third optical system projecting the reference arm to a reflecting surface and receiving a plurality of reflected reference beamlets; a parallel interferometer that provides a plurality of interfero grams from each of the plurality of sample beamlets ...

      Read Full Article
    2. System And Method For Acquiring Slice Image In Blood Vessel Using Optical Coherence Tomography Device And Imaging Catheter

      System And Method For Acquiring Slice Image In Blood Vessel Using Optical Coherence Tomography Device And Imaging Catheter

      The present invention provides a system and a method for acquiring a slice image in a blood vessel using an optical coherence tomography (OCT) device and an imaging catheter, the system for acquiring a slice image in a blood vessel comprising: a micro-catheter inserted into a blood vessel so as to assist the forward movement of another catheter; a micro-wire for guiding the forward movement of the catheter connected by being inserted into the blood vessel; an OCT imaging catheter including an optical fiber, which is connected to the micro-wire so as to be inserted into the blood vessel according ...

      Read Full Article
    3. Machining Head For A Laser Machining Device Comprising A PATH-LENGTH Modulator In The Reference Arm; Method For Laser Machining Of A Workpiece, Comprising Corresponding Steps

      Machining Head For A Laser Machining Device Comprising A PATH-LENGTH Modulator In The Reference Arm; Method For Laser Machining Of A Workpiece, Comprising Corresponding Steps

      The invention relates to a machining head for a laser machining device, which is equipped for machining a workpiece (24) using laser radiation (30). The laser machining head comprises an adjustable focusing optical unit (34), which focuses the laser radiation (30) in a focal spot (22). The distance between the focal spot (22) and a machining head can be modified by modifying the focal length of the focusing optical unit (34). A scanning apparatus (44) deflects the laser radiation (30) in different directions. An optical coherence tomography device (48) measures a distance between the treatment head and the workpiece (24 ...

      Read Full Article
    4. FREQUENCY-DOMAIN Optical Coherence Tomography With Extended FIELD-OF-VIEW And Reduction Of Aliasing Artifacts

      FREQUENCY-DOMAIN Optical Coherence Tomography With Extended FIELD-OF-VIEW And Reduction Of Aliasing Artifacts

      The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range.

      Read Full Article
    5. OCT Vitrectomy Probe

      OCT Vitrectomy Probe

      Disclosed herein is a vitrectomy probe, comprising a beam steering system configured to receive a light beam from a sample fiber of an optical coherence tomography instrument; a fundus illumination system configured to receive a beam of white light from a white light source via a multimode fiber; a dichroic mirror; and a beam delivery system configured to illuminate the retina of a subject.

      Read Full Article
    6. Apparatus and method for processing optical coherence tomography imaging data

      Apparatus and method for processing optical coherence tomography imaging data

      An apparatus and method process optical coherence tomography (OCT) imaging data from a sample. The method includes using a magnitude spectrum and an estimated phase term of a complex spatial Fourier transform of a complex intermediate function to generate an estimated complex spatial Fourier transform. The method further includes calculating an inverse Fourier transform of the estimated complex spatial Fourier transform and calculating an estimated intermediate function by applying at least one constraint to the inverse Fourier transform. The apparatus includes a partially reflective element configured to reflect a first portion of light and to allow a second portion of ...

      Read Full Article
    7. Non-destructive stress profile determination in chemically tempered glass

      Non-destructive stress profile determination in chemically tempered glass

      Apparatus, systems and methods for improving strength of thin cover glass for electronic devices are disclosed. Optical coherence tomography analysis may reveal fine details of a residual stress profile within chemically strengthened cover glass. One or more parameters of chemical strengthening treatments may be adjusted, based upon the analysis of the residual stress profile.

      Read Full Article
    8. Multi-channel optical coherence tomography for imaging and temperature and force sensing

      Multi-channel optical coherence tomography for imaging and temperature and force sensing

      Embodiments of the invention provide multi-channel OCT (Optical Coherence Tomography) for imaging biological tissue, and for temperature and/or force sensing, preferably in real time. In one embodiment, an optical signal processing system comprises: a processor; a memory; a receiving module to receive in real time input from multiple channels of OCT producing interfering optical signals representing multiple measured distances for a target imaging object; a Fast Fourier Transform (FFT) module to apply FFT on the interfering optical signals in real time to produce Fourier frequencies corresponding to the multiple measured distances; and a calculation module to calculate in real ...

      Read Full Article
      Mentions: St. Jude Medical
    9. Vascular Data Processing And Image Registration Systems, Methods, And Apparatuses

      Vascular Data Processing And Image Registration Systems, Methods, And Apparatuses

      In part, the invention relates to processing, tracking and registering angiography images and elements in such images relative to images from an intravascular imaging modality such as, for example, optical coherence tomography (OCT). Registration between such imaging modalities is facilitated by tracking of a marker of the intravascular imaging probe performed on the angiography images obtained during a pullback. Further, detecting and tracking vessel centerlines is used to perform a continuous registration between OCT and angiography images in one embodiment.

      Read Full Article
    10. System For Calculating Center Of Anterior Capsule And Method Therefor

      System For Calculating Center Of Anterior Capsule And Method Therefor

      A method for calculating the center of the anterior capsule includes the steps of: photographing the eyeball of a patient with an optical coherence tomography; generating a 3-dimensional image and coordinates based on the data obtained by the optical coherence tomography; photographing the eyeball of the patient to produce an eyeball image; and matching the 3-dimensional image and coordinates to the eyeball image so as to calculate the center of the anterior capsule of the patient. A system for calculating the center of the anterior capsule includes: an optical coherence tomography apparatus for photographing the eyeball of a patient with ...

      Read Full Article
    11. Devices, Systems, And Methods For Calibrating An Oct Imaging System In A Laser Surgical System

      Devices, Systems, And Methods For Calibrating An Oct Imaging System In A Laser Surgical System

      An adjustment system for an Optical Coherence Tomography (OCT) imaging system includes an OCT light source; a beam splitter, splitting the OCT light beam into an imaging beam to an imaging arm, and a reference beam to a reference arm; a probe, guiding the imaging beam onto a target and receiving a returned imaging beam from the target; the beam splitter generating an interference beam from the returned imaging beam and a returned reference beam from the reference arm.

      Read Full Article
      Mentions: Lingfeng Yu
    12. Inflatable Medical Interfaces And Other Medical Devices, Systems, And Methods

      Inflatable Medical Interfaces And Other Medical Devices, Systems, And Methods

      An inflatable mask with two ocular cavities can seal against a user's face by forming an air-tight seal around the periphery of the user's eye socket. The sealed air-tight ocular cavity can be pressurized to take ocular measurements. The mask can conform to the contours of a user's face by inflating or deflating the mask. In addition, the distance between the user and a medical device (e.g. an optical coherence tomography instrument) can be adjusted by inflating or deflating the mask. Also disclosed herein is an electronic encounter portal and an automated eye examination. Other embodiments ...

      Read Full Article
    13. Chronic Total Occlusion Crossing Devices With Imaging

      Chronic Total Occlusion Crossing Devices With Imaging

      An imaging device includes a hollow flexible shaft having a central longitudinal axis and an imaging window therein. An optical fiber extends within the hollow flexible shaft substantially along the central axis. A distal tip of the optical fiber is attached to the hollow flexible shaft and aligned with the imaging window so as to transfer an optical coherence tomography signal through the imaging window.

      Read Full Article
      Mentions: Avinger
    14. Insert Imaging Device For Surgical Procedures

      Insert Imaging Device For Surgical Procedures

      Insertable imaging devices, and methods of use thereof in minimally invasive medical procedures, are described. In some embodiments, insertable imaging devices are described that can be introduced and removed from an access port without disturbing or risking damage to internal tissue. In some embodiments, imaging devices are integrated into an access port, thereby allowing imaging of internal tissues within the vicinity of the access port, while, for example, enabling manipulation of surgical tools in the surgical field of interest. In other embodiments, imaging devices are integrated into an imaging sleeve that is insertable into an access port. Several example embodiments ...

      Read Full Article
    15. Optical Fiber Beam Directing Systems And Apparatuses

      Optical Fiber Beam Directing Systems And Apparatuses

      In one aspect, the invention relates to a lens (52) configured for optical coherence tomography imaging. The lens includes a substantially cylindrical body (52) having a longitudinal axis and includes a first end, an outer cylindrical surface, and a beam directing surface at a second end, the substantially cylindrical body and the outer cylindrical surface defining a trench (58) in between the first end and the beam directing surface, the beam directing surface being oriented at an angle to the longitudinal axis, and the trench being sized to accept an optical fiber. In another aspect, the invention relates to a ...

      Read Full Article
      Mentions: St. Jude Medical
    16. Apparatus And Methods For Optical Coherence Tomography And TWO-PHOTON Luminescence Imaging

      Apparatus And Methods For Optical Coherence Tomography And TWO-PHOTON Luminescence Imaging

      Exemplary embodiments of the present disclosure include a combined catheter- based optical coherence tomography - two-photon luminescence (OCT-TPL) imaging system. Exemplary embodiments further include methods to detect, and further characterize the distribution of cellular components (e.g., macrophage, collagen/elastin fiber, lipid droplet) in thin-cap fibroatheromas with high spatial resolution in vivo.

      Read Full Article
    17. System And Method For Ophthalmic Laser Surgery Employing Eye Tracking Without Eye Docking

      System And Method For Ophthalmic Laser Surgery Employing Eye Tracking Without Eye Docking

      A system and method for performing ophthalmic surgery using an ultra-short pulsed laser is provided. The system includes a laser engine configured to provide an ultra-short pulsed laser beam, optics configured to direct the laser beam to an undocked eye of a patient, an eye tracker configured to measure five degrees of freedom of movement of the undocked eye, an optical coherence tomography module configured to measure depth of the undocked eye, and a controller configured to control laser beam position on the undocked eye toward a desired laser pattern based on depth and the five degrees of freedom of ...

      Read Full Article
    18. Improved User Interface For Acquistion, Display And Analysis Of Ophthalmic Diagnostic Data

      Improved User Interface For Acquistion, Display And Analysis Of Ophthalmic Diagnostic Data

      Improvements to user interfaces for ophthalmic imaging systems, in particular Optical Coherence Tomography (OCT) systems are described to improve how diagnostic data are displayed, analyzed and presented to the user. The improvements include user customization of display and reports, protocol driven work flow, bookmarking of particular B-scans, accessing information from a reference library, customized normative databases, and ordering of follow-up scans directly from a review screen.

      Read Full Article
    19. Systems And Methods For Variable Mode Optical Coherence Tomography Imaging

      Systems And Methods For Variable Mode Optical Coherence Tomography Imaging

      Systems and methods for improvements to optical coherence tomography systems for operating in different imaging modes are presented. In one embodiment, a system for identifying the presence and type of an adjunct lens operably connected to the OCT instrument for changing between imaging modes in the system is described. In a second embodiment, a system for dynamically autofocusing the OCT system depending on the layer of interest is presented.

      Read Full Article
    1-24 of 1757 1 2 3 4 ... 72 73 74 »
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. Popular Articles

  3. Organizations in the News

    1. (1 articles) Center for Ophthalmic Optics and Lasers
    2. (1 articles) Stanford University
    3. (1 articles) Oregon Health & Science University
  4. People in the News

    1. (1 articles) Yimin Wang
    2. (1 articles) Aydogan Ozcan
    3. (1 articles) David Huang
    4. (1 articles) Muhammad K. Al-Qaisi
    5. (1 articles) Michael D. Abràmoff
  5. OCT Companies in the News

    1. (2 articles) NinePoint Medical