Patents by Inventor Zhenfen Yu

Zhenfen Yu 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: 20210169317
    Abstract: Disclosed is optical observation equipment for identifying the forming process of a malignant tumor, which is provided with a receiving space and a transparent front end. The optical observation equipment comprises: a light-guide fiber, a laser emitter, a focusing device, a white light emitter, an image sensor, a high gain amplifier and an encoding and emitting device, wherein the light-guide fiber extends to the transparent front end from the receiving space; the laser emitter emits laser with a wavelength of 340 nm±20 nm and an energy of 0.3˜0.
    Type: Application
    Filed: February 18, 2021
    Publication date: June 10, 2021
    Inventors: Kun ZENG, Guozheng YAN, Zhenfen YU
  • Patent number: 10952618
    Abstract: Disclosed is optical observation equipment for identifying the forming process of a malignant tumor, which is provided with a receiving space and a transparent front end. The optical observation equipment comprises: a light-guide fiber, a laser emitter, a focusing device, a white light emitter, an image sensor, a high gain amplifier and an encoding and emitting device, wherein the light-guide fiber extends to the transparent front end from the receiving space; the laser emitter emits laser with a wavelength of 340 nm±20 nm and an energy of 0.3˜0.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: March 23, 2021
    Inventors: Kun Zeng, Guozheng Yan, Zhenfen Yu
  • Publication number: 20170071472
    Abstract: Disclosed is optical observation equipment for identifying the forming process of a malignant tumor, which is provided with a receiving space and a transparent front end. The optical observation equipment comprises: a light-guide fiber, a laser emitter, a focusing device, a white light emitter, an image sensor, a high gain amplifier and an encoding and emitting device, wherein the light-guide fiber extends to the transparent front end from the receiving space; the laser emitter emits laser with a wavelength of 340 nm±20 nm and an energy of 0.3˜0.
    Type: Application
    Filed: May 14, 2015
    Publication date: March 16, 2017
    Inventors: Kun ZENG, Guozheng YAN, Zhenfen YU
  • Publication number: 20080161699
    Abstract: A optical Biopsy method and an apparatus are used in the diagnosis of precancerous lesion for locating the place and determining the level of malignant tumor. The apparatus comprises light source (1, 10) a light channel system, an endoscope (21) and a circuit system. The light sources include an excited light (1) and a cold light source (10). The cold light source and the excited light in the light channel system go through the end of the light guide of the endoscope via optical fiber bundle and irradiate the tested living tissue (22). The white light image signal and the intrinsic fluorescence image signal reflected from the tested living tissue (22) are received by a weak fluorescence CCD (6) that tightly connects to the end of the endoscope (21) and then transmit to the circuit system via a signal wire (9) to produce the image in the display (17).
    Type: Application
    Filed: November 5, 2007
    Publication date: July 3, 2008
    Applicant: SHANGHAI SHENGBIAO SCIENCE AND TECHNOLOGY CO., LTD
    Inventors: Kun ZENG, Zhenfen Yu, Hao Huang, Cailin Zhu
  • Patent number: 4957114
    Abstract: This invention relates to a diagnostic apparatus and particularly to an apparatus for the diagnosis of malignant tumor and the method of using the apparatus for diagnosis. The apparatus employs an ultraviolet light source with an emitting waveband of 3000A-4000A. Light from the light source is transmitted through a bundle of quartz optic fibers to the surface of the tumor, whether benign or malignant, to stimulate it, which then generates a specific intrinsic fluorescence spectrum. The intrinsic fluorescence spectrum reflected from the surface of the tumor is transmitted by a second bundles of glass fibers placed near it to a color resolution means, then processed by a scanning means and a circuit means, and displayed recorded by a display recording means. The display may be a graphic presentation of the intrinsic fluorescence spectrum of the tumor that is tested.
    Type: Grant
    Filed: June 28, 1988
    Date of Patent: September 18, 1990
    Inventors: Kun Zeng, Jinrong Wu, Sen Yang, Zhenfen Yu, Jiude Zhu