Patents Assigned to Shanghai Qisheng Biological Preparation Co., Ltd.
  • Cartilage regeneration using injectable, in situ polymerizable collagen compositions containing chondrocytes or stem cells
    Patent number: 11980699
    Abstract: The present disclosure describes a composition for cartilage defects or deficiencies repair, augmentation or treatment comprising an injectable, in situ polymerizable collagen composition and chondrocytes or stem cells in the collagen composition. The present disclosure also relates to methods for repairing or augmenting or treating cartilage defects or deficiencies using the composition and the preparation method of the composition.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: May 14, 2024
    Assignee: Shanghai Qisheng Biological Preparation Co., Ltd.
    Inventors: Dale P. DeVore, Jiaxun Zhu
  • Injectable in situ polymerizable collagen composition
    Patent number: 11235089
    Abstract: The present invention is directed to injectable acid soluble collagen compositions comprising a neutralized solution of an acid soluble collagen, EDTA and preferably a polyol, wherein the composition is injectable at physiological pH and the acid soluble collagen polymerizes upon exposure to tissue. The invention is suitable for use in soft tissue augmentation, promoting soft tissue regeneration and coating medical implants and devices.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: February 1, 2022
    Assignees: Shanghai Haohai Biological Technology Co., Ltd., Shanghai Qisheng Biological Preparation Co., Ltd.
    Inventors: Dale P. Devore, Robert J. Brooks, Todd Byrne