Patents by Inventor Hailin Zhu

Hailin Zhu 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: 20230293306
    Abstract: Disclosed are a bionic tissue stent, a preparation method therefor and an application thereof. The preparation method of the present invention is a 3D printing demolding method, and the preparation method can achieve the high-precision 3D engineering fabrication of a hydrogel material. The bionic tissue stent obtained by using said preparation method has a microscopic fine mesh structure, pores communicate, porosity is high, and the specific surface area is large, especially for bionic cartilage stents and osteochondral stents; moreover, the present invention has great application value in the treatment of articular cartilage diseases.
    Type: Application
    Filed: August 6, 2021
    Publication date: September 21, 2023
    Inventors: Harry Huimin CHEN, Hailin ZHU, Zhengguang WANG
  • Patent number: 10293537
    Abstract: The present disclosure discloses a device for biaxially-oriented stretching polytetrafluoroethylene hollow fiber membranes and the method thereof. The device may include a lubricant removing oven and a tube blank heating oven mounted at the outlet end of the push-compression mold, a core extension extending from the core into the lubricant removing oven and the tube blank heating oven, and a speed regulating guide wheel mounted at the outlet of the tube blank heating oven. A tube blank is extruded from a push-compression machine, inserted on the core extension for removal of lubricant in the lubricant removing oven, heated in the tube blank heating oven, transversely stretched by means of the bulked core, and then wound onto the speed regulating guide wheel for longitudinal stretching. Both transverse and longitudinal stretching can be realized for polytetrafluoroethylene tube blanks, overcoming disadvantages of traditional processing devices that can merely perform longitudinal stretching.
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: May 21, 2019
    Assignee: ZHEJIANG SCI-TECH UNIVERSITY
    Inventors: Yuhai Guo, Hailin Zhu, Feng Wang, Huapeng Zhang
  • Publication number: 20160257049
    Abstract: The present disclosure discloses a device for biaxially-oriented stretching polytetrafluoroethylene hollow fiber membranes and the method thereof. The device may include a lubricant removing oven and a tube blank heating oven mounted at the outlet end of the push-compression mould, a core extension extending from the core into the lubricant removing oven and the tube blank heating oven, and a speed regulating guide wheel mounted at the outlet of the tube blank heating oven. A tube blank is extruded from a push-compression machine, inserted on the core extension for removal of lubricant in the lubricant removing oven, heated in the tube blank heating oven, transversely stretched by means of the bulked core, and then wound onto the speed regulating guide wheel for longitudinal stretching. Both transverse and longitudinal stretching can be realized for polytetrafluoroethylene tube blanks, overcoming disadvantages of traditional processing devices that can merely perform longitudinal stretching.
    Type: Application
    Filed: September 1, 2014
    Publication date: September 8, 2016
    Inventors: Yuhai Guo, Hailin Zhu, Feng Wang, Huapeng Zhang