Patents by Inventor Hsieh-Chih Tsai

Hsieh-Chih Tsai 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: 11952469
    Abstract: The present disclosure provides a method for preparing a hydrogel composition with thermos-sensitive and ionic reversible properties and the hydrogel composition prepared by the method. Related application products of the hydrogel composition of the present disclosure include wound dressings, drug carriers, three-dimensional cellular scaffolds, soluble microspheres, and cell capture and release systems, wherein the hydrogel composition with thermos-sensitive and ionic reversible properties has good in vitro and in vivo stability and high biocompatibility, and is non-toxic. The hydrogel composition can be removed and replaced by washing with metal chelating aqueous solution at low temperature.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: April 9, 2024
    Assignee: National Taiwan University of Science and Technology
    Inventors: Hsieh-Chih Tsai, Shuian-Yin Lin, Hsiao-Ying Chou
  • Patent number: 11939432
    Abstract: Synthetic amino acid-modified polymers and methods of making the same and using the same are disclosed. The synthetic amino acid-modified polymers possess distinct thermosensitive, improved water-erosion resistant, and enhanced mechanical properties, and are suitable of reducing or preventing formation of postoperative tissue adhesions. Additionally, the amino acid-modified polymers can also be used as a vector to deliver pharmaceutically active agents.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: March 26, 2024
    Assignee: PROVIEW-MBD BIOTECH CO., LTD.
    Inventors: Yu-Chia Chang, Yunn-Kuen Chang, Wen-Yen Huang, Ging-Ho Hsiue, Hsieh-Chih Tsai, Shuian-Yin Lin, Nai-Sheng Hsu, Tzu-Yu Lin
  • Patent number: 11939431
    Abstract: The present invention relates to a composition comprising an amino acid-modified polymer, a carboxypolysaccharide, and may further include a metal ion for anti-adhesion and vector application. More specifically, the invention relates to a thermosensitive composition having enhanced mechanical and improved water-erosion resistant properties for efficiently preventing tissue adhesions and can serve as a vector with bio-compatible, bio-degradable/absorbable, and in-vivo sustainable properties.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: March 26, 2024
    Assignee: PROVIEW-MBD BIOTECH CO., LTD.
    Inventors: Yu-Chia Chang, Yunn-Kuen Chang, Wen-Yen Huang, Ging-Ho Hsiue, Hsieh-Chih Tsai, Shuian-Yin Lin, Nai-Sheng Hsu, Tzu-Yu Lin
  • Publication number: 20230310320
    Abstract: The present disclosure provides a soluble microcarrier, including soluble polymer including a plurality of soluble monomers binding to each other with a reducing crosslinking agent. The soluble microcarrier of present disclosure facilitates the attachment of cells, and reducing agents can facilitate the detachment of cells. When the soluble microcarrier is in contact with a reducing agent, the soluble microcarrier degrades.
    Type: Application
    Filed: May 11, 2022
    Publication date: October 5, 2023
    Inventors: Hsieh-Chih TSAI, Shuian-Yin LIN, Ming-Chien YANG, Chun-Chiang HUANG, Yu-Hsuan LIN
  • Publication number: 20230149678
    Abstract: Provided is a device for transdermal delivery of drugs. The device includes a separable substrate and is loaded with dual drugs based on an interpenetrating polymer network hydrogel. Also provided are methods of making and using the transdermal delivery device.
    Type: Application
    Filed: November 12, 2021
    Publication date: May 18, 2023
    Applicant: BUDDHIST TZU CHI MEDICAL FOUNDATION
    Inventors: Yu-Shuan Chen, Hsieh-Chih Tsai, Chang-Yi Lee, Haile Fentahun Darge, Shinn-Zong Lin, Tzyy-Wen Chiou, Chia-Yu Chang
  • Publication number: 20220135748
    Abstract: The present disclosure provides a method for preparing a hydrogel composition with thermos-sensitive and ionic reversible properties and the hydrogel composition prepared by the method. Related application products of the hydrogel composition of the present disclosure include wound dressings, drug carriers, three-dimensional cellular scaffolds, soluble microspheres, and cell capture and release systems, wherein the hydrogel composition with thermos-sensitive and ionic reversible properties has good in vitro and in vivo stability and high biocompatibility, and is non-toxic. The hydrogel composition can be removed and replaced by washing with metal chelating aqueous solution at low temperature.
    Type: Application
    Filed: April 1, 2021
    Publication date: May 5, 2022
    Inventors: Hsieh-Chih TSAI, Shuian-Yin LIN, Hsiao-Ying CHOU
  • Publication number: 20210332193
    Abstract: Synthetic amino acid-modified polymers and methods of making the same and using the same are disclosed. The synthetic amino acid-modified polymers possess distinct thermosensitive, improved water-erosion resistant, and enhanced mechanical properties, and are suitable of reducing or preventing formation of postoperative tissue adhesions. Additionally, the amino acid-modified polymers can also be used as a vector to deliver pharmaceutically active agents.
    Type: Application
    Filed: April 23, 2021
    Publication date: October 28, 2021
    Applicant: PRO-VIEW BIOTECH CO., LTD.
    Inventors: Yu-Chia CHANG, Yunn-Kuen CHANG, Wen-Yen HUANG, Ging-Ho HSIUE, Hsieh-Chih TSAI, Shuian-Yin LIN, Nai-Sheng HSU, Tzu-Yu LIN
  • Publication number: 20210330867
    Abstract: The present invention relates to a composition comprising an amino acid-modified polymer, a carboxypolysaccharide, and may further include a metal ion for anti-adhesion and vector application. More specifically, the invention relates to a thermosensitive composition having enhanced mechanical and improved water-erosion resistant properties for efficiently preventing tissue adhesions and can serve as a vector with bio-compatible, bio-degradable/absorbable, and in-vivo sustainable properties.
    Type: Application
    Filed: April 23, 2021
    Publication date: October 28, 2021
    Applicant: PRO-VIEW BIOTECH CO., LTD.
    Inventors: Yu-Chia CHANG, Yunn-Kuen CHANG, Wen-Yen HUANG, Ging-Ho HSIUE, Hsieh-Chih TSAI, Shuian-Yin LIN, Nai-Sheng HSU, Tzu-Yu LIN
  • Patent number: 8299178
    Abstract: A novel class of mixed micelles formed with critical micelle concentration (Cmc) character's diblock copolymer, and temperature-sensitive character's diblock copolymer were disclosed. The mixed micelles possess complementary effects in adjusting external temperature shift (storage vs. body temperature) and concentration change (dilution after intravenous injection). The mixed micelles of the present invention can serve as a potential injectable drug delivery system for anticancer drugs, such as doxorubicin and many others.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: October 30, 2012
    Assignee: National Tsing Hua University
    Inventors: Ging-Ho Hsiue, Chun-Liang Lo, Sheng-Jie Lin, Hsieh-Chih Tsai
  • Publication number: 20100247654
    Abstract: A novel class of mixed micelles formed with critical micelle concentration (Cmc) character's diblock copolymer, and temperature-sensitive character's diblock copolymer were disclosed. The mixed micelles possess complementary effects in adjusting external temperature shift (storage vs. body temperature) and concentration change (dilution after intravenous injection). The mixed micelles of the present invention can serve as a potential injectable drug delivery system for anticancer drugs, such as doxorubicin and many others.
    Type: Application
    Filed: March 25, 2009
    Publication date: September 30, 2010
    Applicant: National Tsing Hua University
    Inventors: Ging-Ho Hsiue, Chun-Liang Lo, Sheng-Jie Lin, Hsieh-Chih Tsai