Patents by Inventor Cheng-Hsien Liu

Cheng-Hsien Liu 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).

  • Patent number: 12048929
    Abstract: An array platform for three-dimensional cell culturing and drug testing and screening is disclosed. In the array platform, a hydrogel-cell mixture injection area is configured to inject a plurality of kinds of hydrogel-cell mixtures. Cell observation areas are connected to the hydrogel-cell mixture injection area. Electrodes are disposed under the cell observation areas and automatic cell quantification and three-dimensional cell co-arrangement of the plurality of kinds of hydrogel-cell mixtures in the cell observation areas through the electrodes to imitate a structure of body's tissues. A drug injection area is configured to inject a plurality of kinds of drugs. Drug combination generators respectively correspond to the cell observation areas and are connected to the drug injection area. Each drug combination generator has a microfluidic channel structure and configured to generate drug combinations according to the plurality of kinds of drugs.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: July 30, 2024
    Assignees: NATIONAL TSING HUA UNIVERSITY, TAIPEI MEDICAL UNIVERSITY
    Inventors: Yu-Chen Chen, Han-Jung Liao, Kang-Yun Lee, Shu-Chuan Ho, Weilun Sun, Cheng-Hsien Liu
  • Patent number: 11712696
    Abstract: A drug screening platform simulating hyperthermic intraperitoneal chemotherapy including a dielectrophoresis system, a microfluidic chip and a heating system is disclosed. The dielectrophoresis system is used to provide a dielectrophoresis force. The microfluidic chip includes a cell culture array and observation module and a drug mixing module. The cell culture array and observation module are used to arrange the cells into a three-dimensional structure through the dielectrophoresis force to construct a three-dimensional tumor microenvironment. The drug mixing module is coupled to the cell culture array and observation module and used to automatically split and mix the inputted drugs and output the drug combinations into the cell culture array and observation module.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: August 1, 2023
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Te-Yu Chao, Yu-Ching Tung, Mao-Chih Hsieh, Yu-Ting Tai, Bing-Ying Ho, Wei-Chia Chang, Sung-Yang Wei, Chang-Hung Hsieh, Chung-Cheng Chou, Jen-Tsan Chi, Long Hsu, Hwan-You Chang, Huang-Ming Philip Chen, Cheng-Hsien Liu
  • Patent number: 11609185
    Abstract: A portable ring-type fluorescence optical system for observing microfluidic channel and an operating method thereof are disclosed. The portable ring-type fluorescence optical system includes a photographic chip, a first polarizer, an objective lens, a ring-type fluorescent light source, a biological sample on a microfluidic chip, a second polarizer and a bottom illumination light source arranged in order from top to bottom. The ring-type fluorescent light source is used to generate a ring-type fluorescent light to the biological sample on the microfluidic chip. The objective lens is used to magnify a fluorescent image of the biological sample on the microfluidic chip to focus on the photographic chip. The first polarizer disposed under the photographic chip and the second polarizer disposed under the biological sample form a non-zero angle to each other to block reflected lights that the biological sample reflects the lights emitted by the bottom illumination light source.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: March 21, 2023
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Sung-Yang Wei, Long Hsu, Hwan-You Chang, Huang-Ming Chen, Jen-Tsan Chi, Chung-Cheng Chou, Yuh-Cherng Lai, Hung-Yu Yeh, Ting-Chou Wei, Yun-Ting Yao, Cheng-Hsien Liu
  • Publication number: 20230039490
    Abstract: A lung breathing chip and cell stretching culture platform and an operating method thereof are disclosed. The lung breathing chip and cell stretching culture platform controls the output of the motor by programming, stretches the micro-fluidic chip by the cam component, changes the size of the cam component and the frequency of the motor rotation to change the stretching frequency and the amount of stretching to simulate the breathing of the lungs in different states, uses liquid electrophoresis technology to arrange the cells in the biocompatible hydrogel and the hydrogel three-dimensionally to imitate the three-dimensional cell tissue, and injects drugs through the dynamic perfusion system to realize the drug testing platform that the cells of the chip bionic lung tissue are stretched.
    Type: Application
    Filed: August 9, 2021
    Publication date: February 9, 2023
    Applicants: NATIONAL TSING HUA UNIVERSITY, TAIPEI MEDICAL UNIVERSITY
    Inventors: Cheng-Yu HUANG, Chun-Hui SUNG, Pin-Tzu LAI, Chia-Ming HSU, Yi-Ying LIANG, Kang-Yun LEE, Shu-Chuan HO, Weilun SUN, Cheng-Hsien LIU
  • Publication number: 20220401956
    Abstract: A drug screening platform simulating hyperthermic intraperitoneal chemotherapy including a dielectrophoresis system, a microfluidic chip and a heating system is disclosed. The dielectrophoresis system is used to provide a dielectrophoresis force. The microfluidic chip includes a cell culture array and observation module and a drug mixing module. The cell culture array and observation module are used to arrange the cells into a three-dimensional structure through the dielectrophoresis force to construct a three-dimensional tumor microenvironment. The drug mixing module is coupled to the cell culture array and observation module and used to automatically split and mix the inputted drugs and output the drug combinations into the cell culture array and observation module.
    Type: Application
    Filed: August 5, 2021
    Publication date: December 22, 2022
    Applicant: NATIONAL TSING HUA UNIVERSITY
    Inventors: Te-Yu CHAO, Yu-Ching TUNG, Mao-Chih HSIEH, Yu-Ting TAI, Bing-Ying HO, Wei-Chia CHANG, Sung-Yang WEI, Chang-Hung HSIEH, Chung-Cheng CHOU, Jen-Tsan CHI, Long HSU, Hwan-You CHANG, Huang-Ming Philip CHEN, Cheng-Hsien LIU
  • Publication number: 20220395830
    Abstract: An array platform for three-dimensional cell culturing and drug testing and screening is disclosed. In the array platform, a hydrogel-cell mixture injection area is configured to inject a plurality of kinds of hydrogel-cell mixtures. Cell observation areas are connected to the hydrogel-cell mixture injection area. Electrodes are disposed under the cell observation areas and automatic cell quantification and three-dimensional cell co-arrangement of the plurality of kinds of hydrogel-cell mixtures in the cell observation areas through the electrodes to imitate a structure of body's tissues. A drug injection area is configured to inject a plurality of kinds of drugs. Drug combination generators respectively correspond to the cell observation areas and are connected to the drug injection area. Each drug combination generator has a microfluidic channel structure and configured to generate drug combinations according to the plurality of kinds of drugs.
    Type: Application
    Filed: August 3, 2021
    Publication date: December 15, 2022
    Applicants: NATIONAL TSING HUA UNIVERSITY, TAIPEI MEDICAL UNIVERSITY
    Inventors: Yu-Chen CHEN, Han-Jung LIAO, Kang-Yun LEE, Shu-Chuan HO, Weilun SUN, Cheng-Hsien LIU
  • Publication number: 20220364995
    Abstract: A portable ring-type fluorescence optical system for observing microfluidic channel and an operating method thereof are disclosed. The portable ring-type fluorescence optical system includes a photographic chip, a first polarizer, an objective lens, a ring-type fluorescent light source, a biological sample on a microfluidic chip, a second polarizer and a bottom illumination light source arranged in order from top to bottom. The ring-type fluorescent light source is used to generate a ring-type fluorescent light to the biological sample on the microfluidic chip. The objective lens is used to magnify a fluorescent image of the biological sample on the microfluidic chip to focus on the photographic chip. The first polarizer disposed under the photographic chip and the second polarizer disposed under the biological sample form a non-zero angle to each other to block reflected lights that the biological sample reflects the lights emitted by the bottom illumination light source.
    Type: Application
    Filed: August 9, 2021
    Publication date: November 17, 2022
    Applicant: NATIONAL TSING HUA UNIVERSITY
    Inventors: Sung-Yang WEI, Long HSU, Hwan-You CHANG, Huang-Ming CHEN, Jen-Tsan CHI, Chung-Cheng CHOU, Yuh-Cherng LAI, Hung-Yu YEH, Ting-Chou WEI, Yun-Ting YAO, Cheng-Hsien LIU
  • Publication number: 20200147527
    Abstract: We provide a WBC filter which comprises an input unit including two entrances, a first end means for injecting a whole blood and a buffer solution; a passage which a third end connects the second end of the entrance, wherein pluralities of pillars constructed in the passage; and an output unit connects to a fourth end of the passage, means for conducting a screened liquid and a purified liquid; wherein the whole blood and the buffer solution are introduced into the passage from the entrance by a driving force, and forms buffer solution laminar and waste liquid laminar; a large-size blood cells at the buffer solution laminar are lysed to form particulates by the red blood cell lysis buffer, and move toward a second side, thus enter the waste liquid laminar; and conducts the buffer solution laminar, whereby filters a purified liquid containing large amount of white blood cells.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 14, 2020
    Inventor: Cheng-Hsien Liu
  • Patent number: 10627497
    Abstract: The invention provides an analysis system for Doppler ultrasound image includes: a capture device, a processing device, and an output device. The capture device obtains a plurality of Doppler ultrasound images. The processing device arranges the color value in each pixel of the images based on the time domain, and obtains a reference sequence through a referencing method, furthermore performs a clustering method to obtain a plurality of correlation coefficient values, then uses a clustering and noise reducing method to classify into a primary pulsatile signal, a secondary pulsatile signal, and a noise signal, finally annotates the primary pulsatile signal, a secondary pulsatile signal, and a noise signal with different color values, respectively. The output device displays a plurality of visualized pulsatile ultrasound images for visualization.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: April 21, 2020
    Assignee: AMCAD BIOMED CORPORATION
    Inventors: Argon Chen, Jia-Jiun Chen, Yu-Han Shen, Cheng-Hsien Liu
  • Patent number: 10325368
    Abstract: An optical measuring apparatus and an operating method thereof are disclosed. The optical measuring apparatus includes a light source, a carrier chip, a light sensor, an analyzing chip and a display. Samples are uniformly distributed on the carrier chip. The light source emits sensing lights toward the carrier chip. The light sensor receives the sensing lights passing through the carrier chip at a plurality of times to obtain a plurality of images corresponding to the plurality of times respectively. The analyzing chip is coupled to the light sensor. The analyzing chip analyzes the object number and distribution variation with time in the sample according to the plurality of images corresponding to the plurality of times and estimates intrinsic characteristics of the object in the sample accordingly. The display is coupled to the analyzing chip. The display displays the intrinsic characteristics of the object in the sample.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: June 18, 2019
    Assignee: Crystalvue Medical Corporation
    Inventors: Long Hsu, William Wang, Cheng-Hsien Liu, Po-Chen Shih, Ting-Sheng Shih, Cheng-En Liu, Chung-Yu Chou, Chung-Cheng Chou
  • Publication number: 20170315048
    Abstract: An optical measuring apparatus and an operating method thereof are disclosed. The optical measuring apparatus includes a light source, a carrier chip, a light sensor, an analyzing chip and a display. Samples are uniformly distributed on the carrier chip. The light source emits sensing lights toward the carrier chip. The light sensor receives the sensing lights passing through the carrier chip at a plurality of times to obtain a plurality of images corresponding to the plurality of times respectively. The analyzing chip is coupled to the light sensor. The analyzing chip analyzes the object number and distribution variation with time in the sample according to the plurality of images corresponding to the plurality of times and estimates intrinsic characteristics of the object in the sample accordingly. The display is coupled to the analyzing chip. The display displays the intrinsic characteristics of the object in the sample.
    Type: Application
    Filed: April 27, 2017
    Publication date: November 2, 2017
    Inventors: Long HSU, William WANG, Cheng-Hsien LIU, Po-Chen SHIH, Ting-Sheng SHIH, Cheng-En LIU, Chung-Yu CHOU, Chung-Cheng CHOU
  • Patent number: 9746465
    Abstract: A magnetic bead-based digital microfluidic immunoanalysis device and a method thereof are provided, which includes a lower plate, an upper plate disposed above the lower plate, a separating structure therebetween and a magnet disposed on the upper plate or the lower plate. The lower plate includes a first electrode layer including a plurality of channel electrodes with different sizes. A droplet containing few magnetic beads is adapted to be disposed on the lower plate and corresponding to the channel electrodes. The magnet attracts the magnetic beads to approach to the smaller one of the channel electrodes though a magnetic force, and when a voltage is applied to the first electrode layer, the droplet is divided to a detection portion with the magnetic beads and a waste-liquid portion without the magnetic beads respectively corresponding to the smaller one and the larger one of the channel electrodes through a dual-direction electrowetting-on-dielectric force.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: August 29, 2017
    Assignee: National Chiao Tung University
    Inventors: Wensyang Hsu, Cheng-Yeh Huang, Po-Yen Tsai, Po-Huai Shih, Shih-Kang Fan, Da-Jeng Yao, Cheng-Hsien Liu, Hong-Yuan Huang
  • Publication number: 20170184714
    Abstract: The invention provides an analysis system for Doppler ultrasound image includes: a capture device, a processing device, and an output device. The capture device obtains a plurality of Doppler ultrasound images. The processing device arranges the color value in each pixel of the images based on the time domain, and obtains a reference sequence through a referencing method, furthermore performs a clustering method to obtain a plurality of correlation coefficient values, then uses a clustering and noise reducing method to classify into a primary pulsatile signal, a secondary pulsatile signal, and a noise signal, finally annotates the primary pulsatile signal, a secondary pulsatile signal, and a noise signal with different color values, respectively. The output device displays a plurality of visualized pulsatile ultrasound images for visualization.
    Type: Application
    Filed: December 22, 2016
    Publication date: June 29, 2017
    Inventors: Argon Chen, Jia-Jiun Chen, Yu-Han Shen, Cheng-Hsien LIU
  • Patent number: 9663751
    Abstract: The present disclosure illustrates a platform system for in vitro cell co-cultivation with automatic trapping function. The platform system aims to develop a bio-chip applied in cell culture systems, and has several features. The first feature is that this co-cultivation platform can construct a micro environment suitable for culture of various cells. The second feature is dynamic perfusion. The microfluidic system is used to dynamically replace the culture medium, in order to maintain an appropriate environment for the growth of cells. The third feature is the automatic trapping. The cells to be cultured can be trapped in a suitable location according to the flow resistance, so that the damaged on the cell caused by manual operation can be minimized.
    Type: Grant
    Filed: January 2, 2015
    Date of Patent: May 30, 2017
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Ting-Ju Yueh, Chi-Fan Chen, Kuo-Wei Chang, Pei-Yu Chang, Cheng-Hsien Liu, Hong-Yuan Huang, Chin-Jung Li, Chang-Hung Tien, Da-Jeng Yao, Shih-Kang Fan, Wen-Syang Hsu
  • Publication number: 20160274098
    Abstract: A magnetic bead-based digital microfluidic immunoanalysis device and a method thereof are provided, which includes a lower plate, an upper plate disposed above the lower plate, a separating structure therebetween and a magnet disposed on the upper plate or the lower plate. The lower plate includes a first electrode layer including a plurality of channel electrodes with different sizes. A droplet containing few magnetic beads is adapted to be disposed on the lower plate and corresponding to the channel electrodes. The magnet attracts the magnetic beads to approach to the smaller one of the channel electrodes though a magnetic force, and when a voltage is applied to the first electrode layer, the droplet is divided to a detection portion with the magnetic beads and a waste-liquid portion without the magnetic beads respectively corresponding to the smaller one and the larger one of the channel electrodes through a dual-direction electrowetting-on-dielectric force.
    Type: Application
    Filed: June 15, 2015
    Publication date: September 22, 2016
    Inventors: Wensyang Hsu, Cheng-Yeh Huang, Po-Yen Tsai, Po-Huai Shih, Shih-Kang Fan, Da-Jeng Yao, Cheng-Hsien Liu, Hong-Yuan Huang
  • Publication number: 20150291926
    Abstract: The present disclosure illustrates a platform system for in vitro cell co-cultivation with automatic trapping function. The platform system aims to develop a bio-chip applied in cell culture systems, and has several features. The first feature is that this co-cultivation platform can construct a micro environment suitable for culture of various cells. The second feature is dynamic perfusion. The microfluidic system is used to dynamically replace the culture medium, in order to maintain an appropriate environment for the growth of cells. The third feature is the automatic trapping. The cells to be cultured can be trapped in a suitable location according to the flow resistance, so that the damaged on the cell caused by manual operation can be minimized.
    Type: Application
    Filed: January 2, 2015
    Publication date: October 15, 2015
    Inventors: Ting-Ju YUEH, Chi-Fan CHEN, Kuo-Wei CHANG, Pei-Yu CHANG, Cheng-Hsien LIU, Hong-Yuan HUANG, Chin-Jung LI, Chang-Hung TIEN, Da-Jeng YAO, Shih-Kang FAN, Wen-Syang HSU
  • Publication number: 20150284668
    Abstract: The present invention related to a cyclic microfluidic chip that comprises a substrate and a top cover. The substrate having a surface that provides a chamber providing location of a first cell and having a first microchannel, a second microchannel being wrapped around the outside of the chamber and comprising an ECM inlet and an ECM outlet; and a third microchannel being wrapped around the outside of the second microchannel and comprising an cell inlet and an cell outlet to provide a second cell input and output respectively. The top cover comprises a fourth microchannel to provide a medium input and a medium output.
    Type: Application
    Filed: October 2, 2014
    Publication date: October 8, 2015
    Inventors: Yong-Yu HSU, Ming-Yan CHEN, Kuo-Wei CHANG, Tse-Shao CHEN, Kang-Yun LEE, Han-Pin KUO, Yao-Fei CHAN, Lu-Wei KUO, Cheng-Hsien LIU
  • Publication number: 20150177229
    Abstract: A cell mobility characteristics sensing apparatus including a laser light source, a light sensor, an analyzing chip, and a display is disclosed. The laser light source emits laser beams to a cell sample. The light sensor senses scattered laser beams formed by the cell sample scattering the laser beams at a plurality of time points to obtain a plurality of laser scattering patterns corresponding to the plurality of time points respectively. The analyzing chip obtains a laser scattering pattern fluctuations information of the plurality of laser scattering patterns varied with the plurality of time points to estimate the mobility characteristics of the cells in the cell sample. The display shows the mobility characteristics of the cells in the cell sample estimated by the analyzing chip.
    Type: Application
    Filed: December 24, 2014
    Publication date: June 25, 2015
    Inventors: Long HSU, William WANG, Sheng-Hsiang LI, Chung-Hao LU, Cheng-Hsien LIU, Yuh-Shyong YANG, Hwan-You CHANG, Sung-Yang WEI, Chung-Cheng CHOU
  • Patent number: 8759096
    Abstract: Disclosed is a microfluidic chip and method using the same. The microfluidic chip comprises a substrate having a surface, and at least a tissue culture area formed on the surface of the substrate. The tissue culture area has a microfluidic channel formed by a plurality of connected geometrical structures (nozzle-type channels) having a predetermined depth. The microfluidic channel has an inlet and an outlet, which are at two ends of the microfluidic channel, for medium inputting and outputting, respectively. Additionally, at least an air-exchange hole is formed on the bottom of the microfluidic channel. By using the microfluidic chip for tissue culture, lateral flow speed and stress can be decreased, so as to prolong survival time of tissues (e.g. liver tissues).
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: June 24, 2014
    Assignee: National Tsing Hua University
    Inventors: Chen-Wei Wu, Cheng-Hsien Liu, Chau-Ting Yeh, Hui-Ling Lin, Hsin-Yu Lai, Tzu-Chi Yu
  • Publication number: 20140034499
    Abstract: A microfluidic control apparatus operating method is disclosed. The microfluidic control apparatus operating method is applied in a microfluidic control apparatus, and the microfluidic control apparatus includes a photoconductive material layer and a flow passage. The microfluidic control apparatus operating method includes steps of (a) when a light with a specific optical pattern is emitted toward the photoconductive material layer, at least three virtual electrodes being formed on the photoconductive material layer according to the specific optical pattern; (b) when the specific optical pattern changes, the at least three virtual electrodes also changing to generate an electro-osmotic force to control a moving state of a microfluid in the flow passage.
    Type: Application
    Filed: October 7, 2013
    Publication date: February 6, 2014
    Applicant: CRYSTALVUE MEDICAL CORPORATION
    Inventors: Cheng-Hsien LIU, William WANG, Long HSU, Yuh-Shyong YANG, Hwan-You CHANG, Shih-Mo YANG, Chung-Cheng CHOU