Patents by Inventor Doo Sun Sim

Doo Sun Sim 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: 20240139003
    Abstract: Provided is a bioresorbable stent including a stent substrate including a bioresorbable polymer and a contrast medium containing an iodine component, coated on the stent substrate. Since the stent according to the present invention is absorbed in and removed from the human body after a predetermined time, it has excellent biodegradability since it has improved radiopacity by iodine contrast medium coating, it has a high radiography contrast and is very efficient even when a procedure is performed with real time radiography, and since it has low foreshortening and high flexibility, radial force, and re-coil, it may be useful for insertion into a blood vessel having a small diameter, an acute occlusive lesion, an imminent occlusive lesion, and the like.
    Type: Application
    Filed: May 13, 2022
    Publication date: May 2, 2024
    Inventors: Myung Ho JEONG, Dae Sung PARK, Jae Un KIM, Mun Ki KIM, Doo Sun SIM, Kyung Hoon CHO, Dae Young HYUN, Jun Kyu PARK
  • Patent number: 11628240
    Abstract: A tacrolimus drug-eluting stent manufacturing method according to the present invention enables a tacrolimus drug to be strongly and stably bound onto a stent, while also not necessarily involving a separate step of introducing a surface-binding functional group for the binding of a drug onto a stent and a step of introducing, into the drug, a functional group capable of binding to the surface-binding functional group, and a tacrolimus drug-eluting stent manufactured by the manufacturing method has a greater total drug elution amount and has a more excellent delayed drug-elution property.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: April 18, 2023
    Assignee: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY
    Inventors: Myung Ho Jeong, Dae Sung Park, In-Ho Bae, Kyung Seob Lim, Jae Won Shim, So Youn Lee, Eun Jae Jang, Doo Sun Sim, In Soo Kim, Jun Kyu Park
  • Publication number: 20210170076
    Abstract: A tacrolimus drug-eluting stent manufacturing method according to the present invention enables a tacrolimus drug to be strongly and stably bound onto a stent, while also not necessarily involving a separate step of introducing a surface-binding functional group for the binding of a drug onto a stent and a step of introducing, into the drug, a functional group capable of binding to the surface-binding functional group, and a tacrolimus drug-eluting stent manufactured by the manufacturing method has a greater total drug elution amount and has a more excellent delayed drug-elution property.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 10, 2021
    Applicants: Industry Foundation of Chonnam National University, Chonnam National University Hospital
    Inventors: Myung Ho JEONG, Dae Sung PARK, In-Ho BAE, Kyung Seob LIM, Jae Won SHIM, So Youn LEE, Eun Jae JANG, Doo Sun SIM, In Soo KIM, Jun Kyu PARK
  • Patent number: 10343184
    Abstract: Provided is a drug-eluting coronary stent. In the drug-eluting coronary stent according to the present invention, electrospinning is used, thereby making it possible to precisely control a total content of an everolimus-based drug bound thereto and form a uniform layer in spite of not using a polymer causing late thrombosis, or the like.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: July 9, 2019
    Assignee: CHONNAM NATIONAL UNIVERSITY HOSPITAL
    Inventors: Dae Sung Park, In-Ho Bae, Jae Won Shim, So Youn Lee, Eun Jae Jang, Kyung Seob Lim, Jun Kyu Park, In Soo Kim, Doo Sun Sim, Myung Ho Jeong
  • Publication number: 20180015500
    Abstract: Provided is a drug-eluting coronary stent. In the drug-eluting coronary stent according to the present invention, electrospinning is used, thereby making it possible to precisely control a total content of an everolimus-based drug bound thereto and form a uniform layer in spite of not using a polymer causing late thrombosis, or the like.
    Type: Application
    Filed: September 26, 2017
    Publication date: January 18, 2018
    Inventors: Dae Sung PARK, In-Ho BAE, Jae Won SHIM, So Youn LEE, Eun Jae JANG, Kyung Seob LIM, Jun Kyu PARK, In Soo KIM, Doo Sun SIM, Myung Ho JEONG
  • Patent number: 9795987
    Abstract: Provided is a drug-eluting coronary stent. In the drug-eluting coronary stent according to the present invention, electrospinning is used, thereby making it possible to precisely control a total content of an everolimus-based drug bound thereto and form a uniform layer in spite of not using a polymer causing late thrombosis, or the like.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: October 24, 2017
    Assignee: CHONNAM NATIONAL UNIVERSITY HOSPITAL
    Inventors: Dae Sung Park, In-Ho Bae, Jae Won Shim, So Youn Lee, Eun Jae Jang, Kyung Seob Lim, Jun Kyu Park, In Soo Kim, Doo Sun Sim, Myung Ho Jeong