LASER-BASED METHOD AND SYSTEM FOR SELECTIVELY PROCESSING TARGET TISSUE MATERIAL IN A PATIENT AND OPTICAL CATHETER ASSEMBLY FOR USE THEREIN
    14.
    发明申请
    LASER-BASED METHOD AND SYSTEM FOR SELECTIVELY PROCESSING TARGET TISSUE MATERIAL IN A PATIENT AND OPTICAL CATHETER ASSEMBLY FOR USE THEREIN 审中-公开
    基于激光的方法和系统,用于选择性处理目标组织材料在患者和光导管组件中的使用

    公开(公告)号:US20150250542A1

    公开(公告)日:2015-09-10

    申请号:US14719262

    申请日:2015-05-21

    Abstract: A system and method for selectively processing target tissue material in a patient include a laser subsystem for generating an output laser beam and a catheter assembly including an optical fiber for guiding the output laser beam. The beam has a predetermined selected wavelength between 900 nm and 2600 nm. The catheter assembly is sized to extend through an opening in a first part of the patient to a tissue material processing site within the patient. A beam delivery and focusing subsystem includes a focal distance, which may be adjustable, that positions the beam into at least one focused spot on the target tissue material disposed within a second part of the patient for a duration sufficient to allow laser energy to be absorbed by the target tissue material and converted to heat to produce a desired physical change in the target tissue material without causing undesirable changes to adjacent non-target material.

    Abstract translation: 用于选择性地处理患者中的目标组织材料的系统和方法包括用于产生输出激光束的激光子系统和包括用于引导输出激光束的光纤的导管组件。 光束具有在900nm和2600nm之间的预定选定波长。 导管组件的尺寸设置成延伸穿过患者的第一部分中的开口到患者体内的组织材料处理部位。 束输送和聚焦子系统包括可以调整的焦距,其将束定位在设置在患者的第二部分内的目标组织材料上的至少一个聚焦点,持续时间足以允许激光能量被吸收 由靶组织材料转化成热,以在目标组织材料中产生所需的物理变化,而不会对相邻的非目标材料造成不希望的变化。

    NEAR-INFRARED TIME-OF-FLIGHT CAMERAS AND IMAGING

    公开(公告)号:US20190368925A1

    公开(公告)日:2019-12-05

    申请号:US16540764

    申请日:2019-08-14

    Abstract: A smart phone or tablet includes laser diodes configured to be pulsed and generate near-infrared light between 700-2500 nanometers. Lenses direct the light to a sample. A detection system includes a photodiode array with pixels coupled to CMOS transistors, and is configured to receive light reflected from the sample, to be synchronized to the light from the laser diodes, and to perform a time-of-flight measurement of a time difference between light from the laser diodes and light reflected from the sample. The detection system is configured to convert light received while the laser diodes are off into a first signal, and light received while at least one laser diodes is on, which includes light reflected from the sample, into a second signal. The smart phone or tablet is configured to difference the first signal and the second signal and to generate a two-dimensional or three-dimensional image using the time-of-flight measurement.

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