Patents by Inventor Guixin Shi

Guixin Shi 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: 11596708
    Abstract: A medical polymer device comprising a biodegradable polymer is provided, wherein the biodegradable polymer has a crystallinity of about 10% to about 80%, and preferably from about 20% to about 60%, wherein the medical polymer device comprises a small molecule organic compound which diffuses into the biodegradable polymer, the small molecule organic compound has a molecular weight of from about 100 to about 1000 Daltons, preferably from about 150 to about 500 Daltons, and more preferably from about 150 to about 250 Daltons, and the small molecule organic compound is non-evaporating or low-evaporating. The present invention also provides a method for preparing a medical polymer device according to the present invention as well as a method for modifying a medical polymer device made from a biodegradable polymer.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: March 7, 2023
    Assignee: Beijing Advanced Medical Technologies, Ltd. Inc.
    Inventors: Hugh Qinghong Zhao, Qing Liu, Hanqing Feng, Guixin Shi, Dengqiang Jia
  • Publication number: 20220154150
    Abstract: A method for ex vivo transduction of biomolecules from viruses, viral vectors or virus-like particles into target cells and microbubbles for use in this method. A quantity of viruses, viral vectors or virus-like particles and target cells are bound to flexible lipid shell microbubbles, bringing these into close proximity to each other that allows viral transduction, transferring biomolecules from the viruses, viral vectors or virus-like particles into the target cells while the viruses, viral vectors or virus-like particles and the target cells are bound to the microbubbles.
    Type: Application
    Filed: December 14, 2021
    Publication date: May 19, 2022
    Inventors: Yu-Tsueng LIU, Guixin SHI, Chuntang FU
  • Publication number: 20210170067
    Abstract: A medical polymer device comprising a biodegradable polymer is provided, wherein the biodegradable polymer has a crystallinity of about 10% to about 80%, and preferably from about 20% to about 60%, wherein the medical polymer device comprises a small molecule organic compound which diffuses into the biodegradable polymer, the small molecule organic compound has a molecular weight of from about 100 to about 1000 Daltons, preferably from about 150 to about 500 Daltons, and more preferably from about 150 to about 250 Daltons, and the small molecule organic compound is non-evaporating or low-evaporating. The present invention also provides a method for preparing a medical polymer device according to the present invention as well as a method for modifying a medical polymer device made from a biodegradable polymer.
    Type: Application
    Filed: February 3, 2021
    Publication date: June 10, 2021
    Inventors: Hugh Qinghong Zhao, Qing Liu, Hanqing Feng, Guixin Shi, Dengqiang Jia
  • Patent number: 11007298
    Abstract: A medical polymer device comprising a biodegradable polymer is provided, wherein the biodegradable polymer has a crystallinity of about 10% to about 80%, and preferably from about 20% to about 60%, wherein the medical polymer device comprises a small molecule organic compound which diffuses into the biodegradable polymer, the small molecule organic compound has a molecular weight of from about 100 to about 1000 Daltons, preferably from about 150 to about 500 Daltons, and more preferably from about 150 to about 250 Daltons, and the small molecule organic compound is non-evaporating or low-evaporating. The present invention also provides a method for preparing a medical polymer device according to the present invention as well as a method for modifying a medical polymer device made from a biodegradable polymer.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: May 18, 2021
    Assignee: Beijing Advanced Medical Technologies, Ltd. Inc.
    Inventors: Hugh Qinghong Zhao, Qing Liu, Hanqing Feng, Guixin Shi, Dengqiang Jia
  • Publication number: 20200306409
    Abstract: A medical polymer device comprising a biodegradable polymer is provided, wherein the biodegradable polymer has a crystallinity of about 10% to about 80%, and preferably from about 20% to about 60%, wherein the medical polymer device comprises a small molecule organic compound which diffuses into the biodegradable polymer, the small molecule organic compound has a molecular weight of from about 100 to about 1000 Daltons, preferably from about 150 to about 500 Daltons, and more preferably from about 150 to about 250 Daltons, and the small molecule organic compound is non-evaporating or low-evaporating. The present invention also provides a method for preparing a medical polymer device according to the present invention as well as a method for modifying a medical polymer device made from a biodegradable polymer.
    Type: Application
    Filed: May 4, 2016
    Publication date: October 1, 2020
    Inventors: Hugh Qinghong Zhao, Qing Liu, Hanqing Feng, Guixin Shi, Dengqiang Jia
  • Publication number: 20200138613
    Abstract: Disclosed herein is a close-cell structured stent which is composed of curved struts that intersect at a crossing angle of 90 to 170 degrees in the longitudinal direction. Methods for making the stent, use of the stent as a vascular stent, an esophagus stent, an intestine stent, a bile conduct stent, or a urinary tract stent, and use of the stent in the manufacture of stent graft for the treatment of abdominal aortic aneurysms are also provided. The stent has both excellent longitudinal flexibility and radial strength.
    Type: Application
    Filed: December 20, 2019
    Publication date: May 7, 2020
    Inventors: Hugh Qinghong Zhao, Guixin Shi, Yongquan Gu, Qing Li
  • Patent number: 10603194
    Abstract: Disclosed herein is a close-cell structured stent which is composed of curved struts that intersect at a crossing angle of 90 to 170 degrees in the longitudinal direction. Methods for making the stent, use of the stent as a vascular stent, an esophagus stent, an intestine stent, a bile conduct stent, or a urinary tract stent, and use of the stent in the manufacture of stent graft for the treatment of abdominal aortic aneurysms are also provided. The stent has both excellent longitudinal flexibility and radial strength.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: March 31, 2020
    Assignee: Beijing Advanced Medical Technologies, Ltd. Inc.
    Inventors: Hugh Qinghong Zhao, Guixin Shi, Yongquan Gu, Qing Liu
  • Publication number: 20200017830
    Abstract: A method for activating and expanding isolated T cells, the method including adding to isolated T cells ligands presenting microbubbles having a flexible lipid shell with an inner bubble wall enclosing a gas and an outer bubble wall conjugated to ligands capable of achieving cell contact dependent juxtacrine signaling on the isolated T cells; and adding to isolated T cells ligands presenting microbubbles having a flexible lipid shell with an inner bubble wall enclosing a gas and an outer bubble wall conjugated to an antigen capable of forming an immunological synapse (IS) with the T cells.
    Type: Application
    Filed: September 26, 2019
    Publication date: January 16, 2020
    Inventors: Guixin Shi, Kimberly Liu, Ying-Ting Wang
  • Patent number: 10479976
    Abstract: A buoyancy enabled separation method for isolation from a sample including a variety of different cells a sparse subset of cells that is differentiated by a plurality of different cell surface markers. Microbubbles conjugated to antibodies are applied sequentially in a container with the previously used microbubbles disrupted prior to applying the next microbubbles conjugated to a different antibody. A system that includes a syringe-like container with a plunger and closeable opening. Further, a method for activating and expanding isolated T cells by applying antigen presenting microbubbbles having a flexible lipid shell mimicking an antigen presenting cell for generating immunological synapses.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: November 19, 2019
    Assignee: Diagnologix, LLC
    Inventors: Guixin Shi, Kimberly Liu, Ying-Ting Wang
  • Patent number: 10302536
    Abstract: Systems and devices for the isolation of biological agents that are infused in a solution causing those agents to float. These systems and devices have numerous research, diagnostic, clinical, consumer, and other applications. An aspect of the disclosure provides for an apparatus for isolation or enrichment of biological agents from a sample comprising: a sample container comprising an inner volume to hold a sample and a plurality of micro bubbles, a tapered end and an open end, a plunger inserted into the open end and a tip of the tapered end forming an acute angle relative to the horizontal axis of the sample container, wherein the plurality of micro bubbles float one or more biological agents of the sample and wherein the plunger moves towards the tip to isolate or enrich the one or more biological agents from the sample.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: May 28, 2019
    Assignee: DIAGNOLOGIX, LLC
    Inventors: Guixin Shi, Michael Benchimol, Tyler Watson
  • Publication number: 20180171295
    Abstract: A buoyancy enabled separation method for isolation from a sample including a variety of different cells a sparse subset of cells that is differentiated by a plurality of different cell surface markers. Microbubbles conjugated to antibodies are applied sequentially in a container with the previously used microbubbles disrupted prior to applying the next microbubbles conjugated to a different antibody. A system that includes a syringe-like container with a plunger and closeable opening. Further, a method for activating and expanding isolated T cells by applying antigen presenting microbubbbles having a flexible lipid shell mimicking an antigen presenting cell for generating immunological synapses.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 21, 2018
    Inventors: Guixin Shi, Kimberly Liu, Ying-Ting Wang
  • Publication number: 20180104044
    Abstract: Disclosed herein is a close-cell structured stent which is composed of curved struts that intersect at a crossing angle of 90 to 170 degrees in the longitudinal direction. Methods for making the stent, use of the stent as a vascular stent, an esophagus stent, an intestine stent, a bile conduct stent, or a urinary tract stent, and use of the stent in the manufacture of stent graft for the treatment of abdominal aortic aneurysms are also provided. The stent has both excellent longitudinal flexibility and radial strength.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 19, 2018
    Inventors: Hugh Qinghong Zhao, Guixin Shi, Yongquan Gu, Qing Liu
  • Publication number: 20170176305
    Abstract: Systems and devices for the isolation of biological agents that are infused in a solution causing those agents to float. These systems and devices have numerous research, diagnostic, clinical, consumer, and other applications. An aspect of the disclosure provides for an apparatus for isolation or enrichment of biological agents from a sample comprising: a sample container comprising an inner volume to hold a sample and a plurality of micro bubbles, a tapered end and an open end, a plunger inserted into the open end and a tip of the tapered end forming an acute angle relative to the horizontal axis of the sample container, wherein the plurality of micro bubbles float one or more biological agents of the sample and wherein the plunger moves towards the tip to isolate or enrich the one or more biological agents from the sample.
    Type: Application
    Filed: May 8, 2015
    Publication date: June 22, 2017
    Inventors: Guixin SHI, Michael BENCHIMOL, Tyler WATSON
  • Publication number: 20130202625
    Abstract: The technology relates in part to methods of preventing and treating diseases and conditions associated with cancer, including methods, compositions, and kits used for preventing and treating cancer dissemination and growth.
    Type: Application
    Filed: January 20, 2011
    Publication date: August 8, 2013
    Applicant: The Regents Of The University of Californa
    Inventors: Dmitri Simberg, Guixin Shi