- Basel, CH Robert Sanchez - Oceanside CA, US Tammo Heeren - Aliso Viejo CA, US Argelio Michael Olivera - Mission Viejo CA, US Michael Papac - North Tustin CA, US Lingfeng Yu - Rancho Santa Margarita CA, US Hugang Ren - Pleasanton CA, US
International Classification:
A61F 9/008
Abstract:
Apparatuses, systems, and methods for treating tissue abnormalities are disclosed. The tissue may be visualized for determining a presence of one or more abnormalities contained therein. Imaging data obtained by visualization may be used to determine the presence of one or more abnormalities. Each of the detected abnormalities may be identified and a treatment plan developed for treating the abnormalities. Treatment may be delivered to the abnormalities according to the treatment plan.
Surgical Microscope With Integrated Optical Coherence Tomography And Display Systems
An ophthalmic surgical microscope includes a beam coupler positioned along an optical path of the surgical microscope between a first eyepiece and magnifying/focusing optics, the beam coupler operable to direct the OCT imaging beam along a first portion of the optical path of the surgical microscope between the beam coupler and a patient's eye (an OCT image being generated based on a reflected portion of the OCT imaging beam). The surgical microscope additionally includes a real-time data projection unit operable to project the OCT image generated by the OCT system and a beam splitter positioned along the optical path of the surgical microscope between a second eyepiece and the magnifying/focusing optics. The beam splitter is operable to direct the projected OCT image along a second portion of the optical path of the surgical microscope between the beam splitter and the second eyepiece such that the projected OCT image is viewable through the second eyepiece.
Combined Near Infrared Imaging And Visible Imaging In A Compact Microscope Stack
- Basel, CH MAURICIO JOCHINSEN - FOUNTAIN VALLEY CA, US HUGANG REN - PLEASANTON CA, US LINGFENG YU - RANCHO SANTA MARGARITA CA, US
International Classification:
A61F 9/007 A61F 9/008
Abstract:
Both visible and IR cameras are integrated without an increase in an optical stack height of a surgical microscope used for ophthalmic surgery. The IR camera may be used to directly and intraoperatively capture a scanning OCT measurement beam, which uses NIR light that is invisible to the human eye. An IR image from the IR camera taken from the same surgical field as displayed intraoperatively to a user of the surgical microscope may be displayed in an ocular to the user, enabling visualization of a location of an OCT scan along with actual visible images of the surgical field.
Segmentation In Optical Coherence Tomography Imaging
A method for improving segmentation in optical coherence tomography imaging. The method comprises obtaining an OCT image of imaged tissue, generating a first feature image for at least a portion of the OCT image, and generating a second feature image for at least the portion of the OCT image, based on either the OCT image or the first feature image, by integrating image data in a first direction across the OCT image or first feature image. A third feature image is generated as a mathematical function of the first and second feature images, and layer segmentation for the OCT image is performed, based on the third feature image.
Dual-Edge Sampling With K-Clock To Avoid Aliasing In Optical Coherence Tomography
- Based, CH Muhammad K. Al-Qaisi - Ladera Ranch CA, US Hugang Ren - Cypress CA, US
International Classification:
G01B 9/02 A61B 3/10
Abstract:
Techniques and apparatus for producing sampled Optical Coherence Tomography (OCT) interference signals without aliasing, based on a swept-source OCT interference signal. An example apparatus comprises a k-clock circuit configured to selectively output a k-clock signal at any of a plurality of k-clock frequencies ranging from a minimum k-clock frequency to a maximum k-clock frequency, and an anti-aliasing filter configured to filter a swept-source OCT interference signal, to produce a filtered OCT interference signal, where the anti-aliasing filter has a cut-off frequency greater than one-half the minimum k-clock frequency but less than the minimum k-clock frequency. The apparatus further comprises an analog-to-digital (A/D) converter circuit configured to sample the filtered OCT interference signal at twice the k-clock frequency, to produce a sampled OCT interference signal. In some embodiments, the A/D converter circuit samples the filtered OCT interference signal at both rising and falling edges of the k-clock signal.
Method And Apparatus For Optical Coherence Tomography Scanning
- BASEL, CH HUGANG REN - PLEASANTON CA, US LINGFENG YU - RANCHO SANTA MARGARITA CA, US CHENGXIN ZHOU - MALDEN MA, US
International Classification:
A61B 3/10 A61B 3/00
Abstract:
A method and system provide an optical coherence tomography system including a light source, an interferometric system, a processor and a memory. The interferometric system is optically coupled with the light source and includes at least one movable scanning mirror. The processor and memory are coupled with the interferometric system. The processor executes instructions stored in the memory to cause the movable scanning mirror to scan a plurality of points in a sample in at least one pattern. The at least one pattern is based on at least one of at least one Lissajous curve and at least one Spirograph curve.
- Basel, CH Hugang Ren - Cypress CA, US Lingfeng Yu - Rancho Santa Margarita CA, US
International Classification:
G01B 9/02 A61B 3/10 A61B 3/00
Abstract:
An optical coherence tomography (OCT) system and method for scanning a defined area according to a pre-set or user-specified scanning pattern, the defined area surrounding a specified starting position or offset from the starting position. Such OCT systems and methods may be used to generate a pictorial representation of internal target structures the OCT sample beam passed through.
- Basel, CH Hugang Ren - Cypress CA, US Lingfeng Yu - Rancho Santa Margarita CA, US
International Classification:
A61F 9/008
Abstract:
An optical coherence tomography (OCT) system and method for cross view imaging using at least two B-scan images transformed and coupled to each other at an angle to generate a cross view image.