Patents by Inventor Pei-I Tsai

Pei-I Tsai 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: 10743926
    Abstract: An osteo-implant including two end portions, at least one middle structure, and a plurality of connection portions is provided. The middle structure is disposed between the two end portions and includes a plurality of middle portions. The middle portions are connected to the two end portions through the connection portions. When the two end portions are moved relatively along an axial direction of the osteo-implant, the two end portions drive the middle portions to push with each other and have displacements along a radial direction of the osteo-implant through the connection portions, such that an outer diameter of the osteo-implant is increased by the middle portions.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: August 18, 2020
    Assignee: Industrial Technology Research Institute
    Inventors: Ming-Jun Li, Hong-Jen Lai, Pei-I Tsai, Fang-Hei Tsau, Wei-Chin Huang, Yu-Tsung Chiu
  • Publication number: 20200197155
    Abstract: A bone implant includes at least one spiral and at least one pillar. The spiral surrounds an accommodating space. The pillar is disposed in the accommodating space and connected to the spiral. The pillar has at least one notch.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 25, 2020
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Pei-I TSAI, Hsin-Hsin SHEN, Kuo-Yi YANG, Chih-Chieh HUANG, Shih-Ping LIN, De-Yau LIN
  • Publication number: 20200197059
    Abstract: An osteo-implant including two end portions, at least one middle structure, and a plurality of connection portions is provided. The middle structure is disposed between the two end portions and includes a plurality of middle portions. The middle portions are connected to the two end portions through the connection portions. When the two end portions are moved relatively along an axial direction of the osteo-implant, the two end portions drive the middle portions to push with each other and have displacements along a radial direction of the osteo-implant through the connection portions, such that an outer diameter of the osteo-implant is increased by the middle portions.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 25, 2020
    Applicant: Industrial Technology Research Institute
    Inventors: Ming-Jun Li, Hong-Jen Lai, Pei-I Tsai, Fang-Hei Tsau, Wei-Chin Huang, Yu-Tsung Chiu
  • Publication number: 20190388230
    Abstract: An artificial joint includes a first joint assembly and a second joint assembly. The first joint assembly is adapted to be connected to a first bone and has a first contacting surface, wherein the first contacting surface includes a first convex arc surface, a second convex arc surface, and a third convex arc surface. The second joint assembly is adapted to be connected to a second bone and has a second contacting surface, wherein the second contacting surface is in contact with the first contacting surface and includes a first concave arc surface, a second concave arc surface, and a third concave arc surface, and the first concave arc surface, the second concave arc surface, and the third concave arc surface respectively correspond to the first convex arc surface, the second convex arc surface, and the third convex arc surface.
    Type: Application
    Filed: December 19, 2018
    Publication date: December 26, 2019
    Applicants: Industrial Technology Research Institute, National Taiwan University Hospital
    Inventors: Pei-I Tsai, Hsin-Hsin Shen, Kuo-Yi Yang, De-Yau Lin, Yi-Hung Wen, Chih-Chieh Huang, Wei-Luan Fan, Pei-Yu Chen, Ching-Chi Hsu
  • Publication number: 20190201061
    Abstract: An expandable orthopedic implant includes a casing pipe, a shaft, a first expandable element and a first link lever. The casing pipe has a first opening, a second opening and an axis passing through the first and second opening. The casing pipe sheathes one end of the shaft, and the other end of the shaft has a top portion disposed out of the first opening. The first expandable element has a first terminal pivoted on the casing pipe and a second terminal. The first link lever has a proximal end pivoted to the top portion and a distal end pivoted to the second terminal. When the top portion is driven moving away from the first opening along an extending direction of the axis, the first link-lever can be pushed by the shaft to enact the second terminal moving away from the axis along a direction perpendicular to the axis.
    Type: Application
    Filed: December 28, 2017
    Publication date: July 4, 2019
    Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, National Taiwan University Hospital
    Inventors: Pei-I TSAI, Hsin-Hsin SHEN, Kuo-Yi YANG, Shih-Ping LIN, Jui-Sheng SUN, Chih-Yu CHEN, Yu-Tsung CHIU, Chun-Ti CHEN, De-Yau LIN, An-Li CHEN
  • Patent number: 10064737
    Abstract: An implant device for osseous integration includes a plurality of connection bars and at least one frame bar. These connection bars are connected with each other to form a three-dimensional (3D) grid structure. The frame bar is connected with at least two of the connection bars to define at least one edge of the 3D grid structure. Wherein, the frame bar has a diameter substantially greater than that of these connection bars.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 4, 2018
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jane S C Tsai, Hsin-Hsin Shen, Fang-Hei Tsau, Ji-Bin Horng, Pei-I Tsai, Chih-Chieh Huang, Yi-Hung Wen, Hong-Jen Lai, Sung-Ho Liu, Ching-Chih Lin, Meng-Huang Wu
  • Publication number: 20180177596
    Abstract: An osteo-implant is provided, having a fixing segment and an implant end. The fixing segment is provided with a thread and at least one bone healing chamber. The bone healing chamber is located at a thread root of the thread. The bone healing chamber is a chamber inwardly depressed from a surface of the fixing segment. The fixing segment has a central axis. In the same section of the fixing segment, an area of a section, which is parallel to and passes through the central axis, of the at least one bone healing chamber closer to the implant end is smaller.
    Type: Application
    Filed: December 29, 2016
    Publication date: June 28, 2018
    Applicants: Industrial Technology Research Institute, National Taiwan University Hospital
    Inventors: Chih-Chieh Huang, Pei-I Tsai, Hsin-Hsin Shen, Yi-Hung Wen, Kuo-Yi Yang, Wei-Luan Fan, Jui-Sheng Sun, Nien-Ti Tsou