Patents Assigned to Tain-Yew Shi
  • Artificial intervertebral disc flexibly oriented by spring-reinforced bellows
    Patent number: 6984246
    Abstract: An artificial intervertebral disc includes: an upper retaining member secured to an upper vertebra; a lower retaining member secured to a lower vertebra adjacent to the upper vertebra; and a nucleus member flexibly resiliently formed between the upper and the lower retaining members having at least an outer and an inner bellows each reinforced and integrally formed with a helical spring to define an outer annulus between the outer and inner bellows and a core formed within the inner bellows.
    Type: Grant
    Filed: June 5, 2004
    Date of Patent: January 10, 2006
    Assignee: Tain-Yew Shi
    Inventor: Shih-Shing Huang