公开(公告)号：US20190201061A1

公开(公告)日：2019-07-04

申请号：US15856774

申请日：2017-12-28

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE ,  National Taiwan University Hospital

Inventor： 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

IPC: A61B17/72 ,  A61B17/74

CPC classification number: A61B17/7266 ,  A61B17/746 ,  A61B17/8805

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.