Patents by Inventor Te-I Chang

Te-I Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250176849
    Abstract: A system for time-series analysis of fluorescence blood flow includes at least two mobile fluorescent blood flow monitoring devices disposed on the human limbs and processing devices. The movable fluorescent blood flow monitoring device includes the body, a fixed device, a darkroom space, a detection device, a transmission device, and a battery unit. The detection device further comprises at least four LED excitation light sources with a wavelength of 740 nm to 760 nm and a filter receiver. The filter receiver receives reflected fluorescence light with a wavelength of 800 nm to 850 nm to obtain a fluorescent developer signals from human blood perfused tissue, and the cardiac blood flow rate result is calculated by the processing device. A monitoring method is to calculate the cardiac blood flow rate result by the fluorescent developer signal captured by the first and second movable fluorescence blood flow monitoring devices.
    Type: Application
    Filed: April 11, 2024
    Publication date: June 5, 2025
    Inventors: Te-I Chang, Rui-Cian Weng, Yen-Pei Lu
  • Patent number: 10786326
    Abstract: A surgical image pickup system utilizes an adjustable lens set and a complex lens set to change the direction of the incident light emitted from the light source and the position of the surgical site on which the incident light projects. The eyepiece and the sensor have the same field of view and the same optical axis such that first image generated by the sensor and a second image generated by the eyepiece are the same. The sensor transmits the first image to the external display for display by wireless communication. By means of the foregoing configuration, the second image which doctor utilizes the eyepiece to see and the first image which the external display displays are the same, thereby facilitating the operation of surgery.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: September 29, 2020
    Assignee: National Applied Research Laboratories
    Inventors: Rui-Cian Weng, Yih-Sharng Chen, Te-I Chang, Chi-Hung Huang, Yen-Pei Lu, Yen-Song Chen, Kuan-Yin Yu
  • Publication number: 20170154418
    Abstract: A method is provided to label invisible fluorescence by a visible light. A surgeon gets rid of screen for direct observation without repeated location confirmations between surgical site and onscreen mark. Fluid movement of a fluorescent dye can be observed in a real-time mode. Through projecting a visible-light spot at a fluorescent area at real time, the surgeon observes the fluorescent area the visible-light spot projecting to. Hence, the problem that fluorescence imaging technology must rely on screen to see the location of the fluorescent area is solved. When a patient moves or fluorescent areas changes, an image sensor automatically adjusts an area labeled by a visible-light spot through changing a photographing area with a focus automatically set. In addition, the method adjusts a projecting angle of the visible-light spot with an initial mirror and a final mirror only. Adjustment of lens group is not required the saving money.
    Type: Application
    Filed: November 27, 2015
    Publication date: June 1, 2017
    Inventors: Chun-Li Chang, Wen-Hong Wu, Wen-Tse Hsiao, Chi-Hung Huang, Rui-Cian Weng, Te-I Chang, Yih-Sharng Chen