Patents by Inventor Tongzu Liu

Tongzu 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: 10617283
    Abstract: A self-locking angle adjustment mechanism for an endoscope includes: an endoscope angle adjustment steel wire (5), a rotation handle (2), an endoscope handle (3) and a self-locking rotation device, wherein: an outer conical surface is provided at an external surface of the rotation shaft (7), a conical cylinder is sleeved onto the outer conical surface; a spring (14), which can drive the rotation shaft to move towards a direction of the conical cylinder or drive the conical cylinder to move towards a direction of the rotation shaft, and can force the inner conical surface to closely fit with the outer conical surface for self-locking, is located along an axial direction of the rotation shaft or conical cylinder. Through the present invention, the flexible sheath is locked stepless at any position, meeting free positioning requirement of endoscope during surgeries, reducing labor strength during surgeries, avoiding patient injuries caused by misoperations.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: April 14, 2020
    Assignee: YOUCARE TECHNOLOGY CO., LTD. (WUHAN)
    Inventors: Shaogang Wang, Jianxing Li, Xiaolin Guo, Jian Huang, Xu Zhang, Jihong Liu, Yiran Huang, Lin Qi, Xiuheng Liu, Xiaoping Zhang, Tongzu Liu, Zhangqun Ye, Kunjie Wang, Xiao Yu, Qi Chen, Lei Song, Yaohui Wu, Yeyun Mao, Ying Li, Xuecheng Hu, Gang Long
  • Patent number: 10542876
    Abstract: The present invention relates to a multidirectional turning endoscope, which includes an insertion portion (2), an endoscope handle (4) and a bending driving portion (3); wherein: the bending driving portion includes a left-right driving rod, an up-down driving rod, a rotation shaft, a left turning wheel (17), a right turning wheel (18) and a spring (19); the rotation shaft includes a left half shaft (15) and a right half shaft (16); the external surface of the left half shaft and the external surface of the right half shaft respectively have a left outer conical face and a right outer conical face, a left conical cylinder and a right conical cylinder (20) are respectively sleeved to the left outer conical face and a right outer conical face; a spring (19) is located at an axial direction of the left half shaft and the right half shaft.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: January 28, 2020
    Assignee: YOUCARE TECHNOLOGY CO., LTD.(WUHAN)
    Inventors: Shaogang Wang, Xiao Yu, Yeyun Mao, Zhangqun Ye, Jian Huang, Jianxing Li, Xu Zhang, Jihong Liu, Yiran Huang, Lin Qi, Xiuheng Liu, Xiaoping Zhang, Tongzu Liu, Kunjie Wang, Xiaolin Guo, Qi Chen, Lei Song, Yaohui Wu, Ying Li, Xuecheng Hu, Gang Long
  • Publication number: 20170325659
    Abstract: A self-locking angle adjustment mechanism for an endoscope includes: an endoscope angle adjustment steel wire (5), a rotation handle (2), an endoscope handle (3) and a self-locking rotation device, wherein: an outer conical surface is provided at an external surface of the rotation shaft (7), a conical cylinder is sleeved onto the outer conical surface; a spring (14), which is capable of driving the rotation shaft to move towards a direction of the conical cylinder or driving the conical cylinder to move towards a direction of the rotation shaft, and forcing the inner conical surface to closely fit with the outer conical surface for self-locking, is located along an axial direction of the rotation shaft or conical cylinder. Through the present invention, the flexible sheath is locked stepless at any position, meeting free positioning requirement of endoscope during surgeries, reducing labor strength during surgeries, avoiding patient injuries caused by misoperations.
    Type: Application
    Filed: June 2, 2015
    Publication date: November 16, 2017
    Inventors: Shaogang Wang, Jiaxing Li, Xiaolin Guo, Jian Huang, Xu Zhang, Jihong Liu, Yiran Huang, Lin Qi, Xiuheng Liu, Xiaoping Zhang, Tongzu Liu, Zhangqun Ye, Kunjie Wang, Xiao Yu, Qi Chen, Lei Song, Yaohui Wu, Yeyun Mao, Ying Li, Xuecheng Hu, Gang Long
  • Publication number: 20170325660
    Abstract: The present invention relates to a multidirectional turning endoscope, which includes an insertion portion (2), an endoscope handle (4) and a bending driving portion (3); wherein: the bending driving portion includes a left-right driving rod, an up-down driving rod, a rotation shaft, a left turning wheel (17), a right turning wheel (18) and a spring (19); the rotation shaft includes a left half shaft (15) and a right half shaft (16); the external surface of the left half shaft and the external surface of the right half shaft respectively have a left outer conical face and a right outer conical face, a left conical cylinder and a right conical cylinder (20) are respectively sleeved to the left outer conical face and a right outer conical face; a spring (19) is located at an axial direction of the left half shaft and the right half shaft.
    Type: Application
    Filed: June 2, 2015
    Publication date: November 16, 2017
    Inventors: Shaogang Wang, Xiao Yu, Yeyun Mao, Zhangqun Ye, Jian Huang, Jianxing Li, Xu Zhang, Jihong Liu, Yiran Huang, Lin Qi, Xiuheng Liu, Xiaoping Zhang, Tongzu Liu, Kunjie Wang, Xiaolin Guo, Qi Chen, Lei Song, Yaohui Wu, Ying Li, Xuecheng Hu, Gang Long