Patents by Inventor I-Jong Wang

I-Jong Wang 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: 20210315454
    Abstract: The present invention provides a morphology determining method of corneal topography, including: a parameter obtaining step, based on an original contour line of a cornea of a target subject as the reference, obtaining a relative displacement of each observation point of a contour line of the pressed cornea changed with time from the beginning of pressing the cornea by an external pressure to a predetermined time after the pressing is finished; a conversion step, performing a mathematical function conversion of the above relative displacement with respect to a spatial contour at each observation time point, so as to respectively obtain one or more order vibrational modes representing the contour line of the time points; and a determining step, respectively comparing the one or more order vibrational modes of the cornea of the target subject with a corresponding order vibrational mode of at least one reference cornea, and determining a morphology of the corneal topography of the cornea of the target subject.
    Type: Application
    Filed: April 12, 2021
    Publication date: October 14, 2021
    Inventors: Po-Jen SHIH, Jia-Yush YEN, I-Jong WANG, Chun-Ju HUANG, Hsin-Ju LAI
  • Publication number: 20210244852
    Abstract: The present application provides a composition of corneal implantation, comprising: a collagen film, and renal proximal tubule cells which attached to the collagen film. In addition, the present application further provides a use of the composition of corneal implantation for implanting a patient with damaged cornea endothelium cells and a preparation method of the composition of corneal implantation.
    Type: Application
    Filed: November 26, 2020
    Publication date: August 12, 2021
    Inventors: I-JONG WANG, TAI-HORNG YOUNG, I-NI CHIANG, YU-LUN LIU, TING-YUN SHIUE
  • Patent number: 10918474
    Abstract: An implanting device is used for implanting a membrane in a biological tissue. The implanting device includes a sleeve, a membrane storage element, an injection element and a bubble generating element. The membrane storage element is fixed at the sleeve. The injection element is inserted in the sleeve and the membrane storage element, and includes a capturing end and connecting end. The capturing end is for capturing the membrane and has a hole. The bubble generating element is connected to the connecting end, and is for providing a gas that is then outputted via the hole. By the rotation of the injection element, the capturing end extends straight out of the membrane storage element or retracts straight into the membrane storage element.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: February 16, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yu-Bing Liou, Ming-Chia Yang, Hsin-Yi Hsu, Yun-Han Lin, Wei-Hong Chang, I-Jong Wang, Hsin-Hsin Shen
  • Patent number: 10332636
    Abstract: A corneal young's modulus algorithm and system using the same is provided, comprising a tonometer and a computation unit. The computation unit comprises an algorithm for calculating young's modulus. The algorithm comprises: (S1) read at least one parameter measured by a tonometer; (S2) apply the at least one parameter and an initial value of Young's modulus to a first equation to obtain an inner deformation amount and an outer deformation amount; (S3) apply the inner deformation amount and the outer deformation amount to a second equation to obtain a calculated deformation amount; (S4) determine if an error value between the calculated deformation amount and the actual deformation amount is minimal; and (S5) obtain Young's modulus.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: June 25, 2019
    Assignee: NATIONAL TAIWAN UNIVERSITY
    Inventors: Jia-Yush Yen, I-Jong Wang, Po-Jen Shih, Chun-Ju Huang, Tzu-Han Huang
  • Publication number: 20190076234
    Abstract: An implanting device is used for implanting a membrane in a biological tissue. The implanting device includes a sleeve, a membrane storage element, an injection element and a bubble generating element. The membrane storage element is fixed at the sleeve. The injection element is inserted in the sleeve and the membrane storage element, and includes a capturing end and connecting end. The capturing end is for capturing the membrane and has a hole. The bubble generating element is connected to the connecting end, and is for providing a gas that is then outputted via the hole. By the rotation of the injection element, the capturing end extends straight out of the membrane storage element or retracts straight into the membrane storage element.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 14, 2019
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yu-Bing LIOU, Ming-Chia YANG, Hsin-Yi HSU, Yun-Han LIN, Wei-Hong CHANG, I-Jong WANG, Hsin-Hsin SHEN
  • Patent number: 10194886
    Abstract: The present invention provides an acoustic wave intraocular pressure detecting device and a method thereof, which uses a driver to generate a vibration wave on the skin or bones. The energy of the vibration wave is transmitted to the orbital bones via the skin and the skeletons. A standing wave of the basin effect is generated on the eyeball inside the orbital bones. The standing wave vibrates the eyeball or the cornea to generate an acoustic wave signal with a resonance frequency. The eyeball or the cornea emits the acoustic wave outwardly. A receiver receives the acoustic wave and converts the acoustic wave into an intraocular pressure (IOP) value.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: February 5, 2019
    Assignee: National Taiwan University
    Inventors: Wen-Pin Shih, Po-Jen Shih, Jia-Yush Yen, I-Jong Wang
  • Publication number: 20160239634
    Abstract: A corneal young's modulus algorithm and system using the same is provided, comprising a tonometer and a computation unit. The computation unit comprises an algorithm for calculating young's modulus. The algorithm comprises: (S1) read at least one parameter measured by a tonometer; (S2) apply the at least one parameter and an initial value of Young's modulus to a first equation to obtain an inner deformation amount and an outer deformation amount; (S3) apply the inner deformation amount and the outer deformation amount to a second equation to obtain a calculated deformation amount; (S4) determine if an error value between the calculated deformation amount and the actual deformation amount is minimal; and (S5) obtain Young's modulus.
    Type: Application
    Filed: February 17, 2016
    Publication date: August 18, 2016
    Inventors: Jia-Yush Yen, I-Jong WANG, Po-Jen Shih, Chun-Ju Huang, Tzu-Han Huang
  • Publication number: 20160174933
    Abstract: The present invention provides an acoustic wave intraocular pressure detecting device and a method thereof, which uses a driver to generate a vibration wave on the skin or bones. The energy of the vibration wave is transmitted to the orbital bones via the skin and the skeletons. A standing wave of the basin effect is generated on the eyeball inside the orbital bones. The standing wave vibrates the eyeball or the cornea to generate an acoustic wave signal with a resonance frequency. The eyeball or the cornea emits the acoustic wave outwardly. A receiver receives the acoustic wave and converts the acoustic wave into an intraocular pressure (IOP) value.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Inventors: Wen-Pin SHIH, Po-Jen SHIH, Jia-Yush YEN, I-Jong WANG
  • Patent number: 9254085
    Abstract: A system and a method for monitoring change of intraocular pressure and a contact lens for sensing change of intraocular pressure are provided. The contact lens includes a first material layer and a first pattern. The center of the first material layer has an optical region, and the optical region corresponds to a cornea region of an eyeball. The first pattern is formed on the optical region. Furthermore, the contact lens may further include a second material layer and a second pattern. The second material layer is located on the first material layer. The second pattern is formed on the second material layer and overlaps with the first pattern to form a moire pattern.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 9, 2016
    Assignee: NATIONAL TAIWAN UNIVERSITY
    Inventors: Lon Wang, Pin-Chung Lin, I-Jong Wang
  • Publication number: 20160002596
    Abstract: A composition for ex vivo culture of corneal endothelial cell and a method for used the composition are disclosed. The composition or the method is applied to ex vitro culture of the corneal endothelial cell to maintain the corneal endothelial cell in a hexagonal phenotype, and to prevent the corneal endothelial cell from endothelial-mesenchymal transformation (EnMT). Therefore, the corneal endothelial cell can maintain normal phenotype and function and can be used in the further application. The composition at least comprises an effective concentrated matrix metalloproteinase inhibitor (MMPI).
    Type: Application
    Filed: July 3, 2015
    Publication date: January 7, 2016
    Inventors: I-Jong Wang, Wei-Ting Ho, Ting-Hsuan Chiang, I-Tsen Lin
  • Publication number: 20150018661
    Abstract: A method for measuring corneal elastic constant and viscosity constant comprises steps of: ejecting compressed air toward a cornea of a live eye ball and measuring air pressure thereof; emitting infrared rays during an air ejecting period, for measuring corneal deformation caused by the compressed air applied to the cornea; and calculating an elastic constant and a viscosity constant of the cornea based on Kelvin-Voigt model by utilizing the corneal deformation measured via the infrared rays and the measured air pressure during the air ejecting period. One advantage of the present invention is to aid preliminary detection in eye diseases.
    Type: Application
    Filed: January 13, 2014
    Publication date: January 15, 2015
    Applicant: National Taiwan University
    Inventors: Jia-Yush YEN, I-Jong WANG, Chun-Ju HUANG, Pei-Yi CHOU
  • Publication number: 20140163351
    Abstract: A system and a method for monitoring change of intraocular pressure and a contact lens for sensing change of intraocular pressure are provided. The contact lens includes a first material layer and a first pattern. The center of the first material layer has an optical region, and the optical region corresponds to a cornea region of an eyeball. The first pattern is formed on the optical region. Furthermore, the contact lens may further include a second material layer and a second pattern. The second material layer is located on the first material layer. The second pattern is formed on the second material layer and overlaps with the first pattern to form a moire pattern.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 12, 2014
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: Lon WANG, Pin-Chung LIN, I-Jong WANG
  • Publication number: 20140073611
    Abstract: The disclosure relates to a platform of using zebrafish in screening candidates for treating and/or preventing myopia and keratoconus disease. The disclosure is mainly based on that Lumican, one of several SLRPs, plays an important role in the regulation of fibrillogenesis or the genes affecting the size of eyeballs in zebrafish, in addition to playing an important role in clinical myopia. Therefore, the disclosure uses the established zebrafish model to further identify the drugs affecting the expression of lumican and collagen fibrillogenesis, and/or the regulation of eyeball size. These drugs are potential candidates for treating myopia and/or keratoconus disease.
    Type: Application
    Filed: May 21, 2013
    Publication date: March 13, 2014
    Applicant: National Taiwan University
    Inventors: I-Jong Wang, Wei-Ting Ho, Ting-Hsuan Chiang, I-Tsen Lin