Patents by Inventor Hyun-Seung Ryu

Hyun-Seung Ryu 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: 20210163361
    Abstract: The present invention relates to a paste-type composition for a fused deposition modeling (FDM) 3D printer comprising: a ceramic powder including CaO and SiO2; and a binder solution, wherein the composition may be injected into the FDM 3D printer in the form of a paste to rapidly manufacture a molded article without a melting process and may precisely implement a variety of geometries to be utilized as a biological replacement for medical use.
    Type: Application
    Filed: May 24, 2019
    Publication date: June 3, 2021
    Applicant: BIOALPHA CORPORATION
    Inventors: Jun Young LIM, Yong Bok KIM, Jun Hyuk SEO, Hyun Seung RYU
  • Patent number: 10994054
    Abstract: Disclosed is a scaffold for living donor transplantation, which includes sintered bioglass and a biocompatible polymer and has improved properties using a 3D printer through a fused deposition modeling process.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: May 4, 2021
    Assignees: CG BIO CO., LTD., BIOALPHA INC.
    Inventors: Jun Young Lim, Yong Bok Kim, Hyun Seung Ryu
  • Publication number: 20210023275
    Abstract: Disclosed is a scaffold for living donor transplantation, which includes sintered bioglass and a biocompatible polymer and has improved properties using a 3D printer through a fused deposition modeling process.
    Type: Application
    Filed: December 11, 2019
    Publication date: January 28, 2021
    Inventors: Jun Young LIM, Yong Bok KIM, Hyun Seung RYU
  • Publication number: 20210024420
    Abstract: A composition for a FDM 3D printer is disclosed. The composition contains bioglass and a biocompatible polymer resin. In addition, a FDM 3D printer molded article having a laminated strut structure, in which the composition for the FDM 3D printer is injected into four layers, is disclosed.
    Type: Application
    Filed: December 11, 2019
    Publication date: January 28, 2021
    Applicants: CG Bio Co., Ltd., BIOALPHA CORPORATION
    Inventors: Jun Young LIM, Yong Bok KIM, Hyun Seung RYU
  • Patent number: 10881324
    Abstract: The present invention relates to a wound volume measuring method and device, wherein the method comprises the steps of: disposing a foam dressing on a wound site; hermetically sealing the wound site by attaching a film dressing on skin adjacent to the wound site; supplying a negative pressure to the hermetically sealed space formed between the film dressing and the wound site, and thereby discharging fluid into the hermetically sealed space; measuring the flow of the fluid discharged from the hermetically sealed space; and calculating the volume of the wound site on the basis of the measured fluid flow.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: January 5, 2021
    Assignee: CG Bio Co., Ltd.
    Inventors: Hyun Seung Ryu, Joon Pio Hong, Jun Hyuk Seo, Hee Jun Park, Soon Gee Hong, Kang Jin Jeon, Hoon Kim
  • Patent number: 10668182
    Abstract: The present invention relates to a method for preparing a medical material for replacing a hard tissue defect and a medical material produced therefrom. More specifically, in the present invention, powders of bioactive glass are press-molded, and are then subjected to a first heat treatment at a relatively low temperature below the glass transition temperature of bioactive glass. Then, the resultant is processed into a desired shape and then subjected to a second heat treatment at a temperature higher than the glass transition temperature of bioactive glass. Accordingly, the present invention provides a medical material which can be customized to a desired shape of a hard tissue defect in a living body and minimize thermal shock, and which is capable of exhibiting a bone fusion property, while overcoming the low compressive strength drawback of hydroxyapatite, which is an existing hard tissue replacement material currently in use.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: June 2, 2020
    Assignee: Bioalpha Corporation
    Inventors: Mi Young Ryu, Sung Nam Park, Jun Hyuk Seo, Hyun Seung Ryu
  • Patent number: 10624769
    Abstract: A hybrid stent includes multiple main cells aligned in a spiral shape and including multiple first link units which are aligned diagonally and spaced at a predetermined distance from each other and multiple second link units which connect adjacent first link units among the multiple first link units and are spaced at a predetermined distance from each other, and one or more open cells adjacent to the multiple main cells in a longitudinal direction and aligned in a spiral shape.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: April 21, 2020
    Assignees: CG BIO CO., LTD., THE ASAN FOUNDATION
    Inventors: Han Ki Kim, Hyun Seung Ryu, Jun Hyuk Seo, Jun Kyu Park, Seok Beom Song, Chang Hun Kum, Jae Hwa Cho, Gyu Hyun Jin, Deok Hee Lee, Seon Moon Hwang, Tae Il Kim, Ok Kyun Lim, Ga Young Lee
  • Publication number: 20190299173
    Abstract: The present invention provides a vessel used for a centrifuge, a centrifugation method using same, and a method for stromal vascular fraction (SVF) isolation using same. In particular, the centrifuge vessel according to the present invention has a rotatable body unit (300) provided with a side accommodation part (310) which is on the side thereof and formed by extending at least a part thereof radially outwards and on which is positioned a plate (150) having a radial end positioned therein. As a result, the present invention substantially eliminates a stirring effect, has high isolation efficiency, and obtains a superior SVF yield.
    Type: Application
    Filed: October 18, 2016
    Publication date: October 3, 2019
    Inventors: Jong Ha Park, Soon Gee Hong, Bo Yung Yoo, Jun Hyuk Seo, Hyun Seung Ryu, Yong Su Kim, In Ho Kim
  • Patent number: 10293081
    Abstract: The present invention relates to a crystallized glass ceramic comprising 30 wt % to 40 wt % of each of CaSiO3, Ca10(PO4)6(OH)2, and Ca2Mg(Si2O7); a crystallized glass ceramic composition comprising CaSiO3, Ca10(PO4)6(OH)2, and Ca2Mg(Si2O7) in a predetermined weight ratio; a bone graft material comprising the glass ceramic; and an intervertebral spacer or medical device for replacement of bone tissue, which is manufactured using the bone graft material.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: May 21, 2019
    Assignee: BIOALPHA CORPORATION
    Inventors: Mi Young Ryu, Sung Nam Park, Jun Hyuk Seo, Hyun Seung Ryu
  • Publication number: 20180344896
    Abstract: Provided are a hyaluronic acid composition having excellent viscoelasticity and being easily injectable, and a preparation method thereof.
    Type: Application
    Filed: September 2, 2015
    Publication date: December 6, 2018
    Inventors: Su Hyun JUNG, Jun Hyuk SEO, Hyun Seung RYU, Hak Su JANG
  • Publication number: 20180339082
    Abstract: The present invention relates to a polyether ether ketone (PEEK)-based material comprising hydroxyapatite (HA) particles which are embedded discontinuously on the surface thereof, a method of preparing the PEEK-based material, and a bone graft comprising the PEEK-based material.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 29, 2018
    Inventors: Mi Young Ryu, Jun Hyuk Seo, Hyun Seung Ryu, Nam Yul Cho, Hak Su Jang
  • Publication number: 20180311399
    Abstract: The present invention relates to a wound dressing material comprising a fibrillated acellular dermis matrix and a biodegradable polymer aqueous solution and, more specifically, to: a wound dressing material comprising 5-20 wt % of a fibrillated acellular dermis matrix, 0.5-5 wt % of a biodegradable polymer, and 75-94.5 wt % of water; and a preparation method therefor.
    Type: Application
    Filed: October 28, 2016
    Publication date: November 1, 2018
    Inventors: Hee Jun PARK, Hyun Seung RYU, Joon Pio HONG, Jun Hyuk SEO, Jong Ha PARK, Soon Gee HONG, Hak Su JANG, So Myoung LEE, Bo Young YOO
  • Publication number: 20180296348
    Abstract: The disclosure relates to a cervical spine fixation apparatus comprising: a body; a spacer; and a frame which is positioned on the lateral side of the spacer and couples with the spacer, wherein the frame has a coupling part for coupling with the body, and the body comprises a hole in which the coupling part of the frame is inserted. Or, the disclosure relates to a cervical spine fixation apparatus comprising: a body; and a spacer having a coupling part, wherein the body comprises a hole in which the coupling part is inserted, and the spacer moves with respect to the body.
    Type: Application
    Filed: August 5, 2016
    Publication date: October 18, 2018
    Applicant: CG BIO CO., LTD.
    Inventors: Hyun Seung RYU, Jun Hyuk SEO, Byeong Woo KWON, Hae Jun JEONG
  • Publication number: 20180256779
    Abstract: The present invention relates to a method for preparing a medical material for replacing a hard tissue defect and a medical material produced therefrom. More specifically, in the present invention, powders of bioactive glass are press-molded, and are then subjected to a first heat treatment at a relatively low temperature below the glass transition temperature of bioactive glass. Then, the resultant is processed into a desired shape and then subjected to a second heat treatment at a temperature higher than the glass transition temperature of bioactive glass. Accordingly, the present invention provides a medical material which can be customized to a desired shape of a hard tissue defect in a living body and minimize thermal shock, and which is capable of exhibiting a bone fusion property, while overcoming the low compressive strength drawback of hydroxyapatite, which is an existing hard tissue replacement material currently in use.
    Type: Application
    Filed: August 19, 2016
    Publication date: September 13, 2018
    Inventors: Mi Young Ryu, Sung Nam Park, Jun Hyuk Seo, Hyun Seung Ryu
  • Publication number: 20180140443
    Abstract: A hybrid stent includes multiple main cells aligned in a spiral shape and including multiple first link units which are aligned diagonally and spaced at a predetermined distance from each other and multiple second link units which connect adjacent first link units among the multiple first link units and are spaced at a predetermined distance from each other, and one or more open cells adjacent to the multiple main cells in a longitudinal direction and aligned in a spiral shape.
    Type: Application
    Filed: September 21, 2015
    Publication date: May 24, 2018
    Inventors: Han Ki KIM, Hyun Seung RYU, Jun Hyuk SEO, Jun Kyu PARK, Seok Beom SONG, Chang Hun KUM, Jae Hwa CHO, Gyu Hyun JIN, Deok Hee LEE, Seon Moon HWANG, Tae Il KIM, Ok Kyun LIM, Ga Young LEE
  • Patent number: 9925306
    Abstract: The present invention relates to a carrier for growth factor related to regeneration of bone tissues that is capable of arbitrarily controlling the delivery rate of growth factors related to bone regeneration and thus especially applicable to a bone void filler in the fields of the dental or orthopedic applications. The carrier for controlling the delivery rate of the growth factor in the present invention is composed of a hyaluronic acid hydrogel having a distribution of interconnected pores and a calcium phosphate microsphere being distributed in the pores of the hyaluronic acid hydrogel. The calcium phosphate microsphere having a porosity suitable for delivery of the growth factor is positioned into the pores of the cross-linked hyaluronic acid hydrogel to complete the carrier.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: March 27, 2018
    Assignee: Bioalpha Inc.
    Inventors: Jung Ju Kim, Su Hyun Jung, Hyun Seung Ryu, Jun Hyuk Seo
  • Publication number: 20180050137
    Abstract: A wound treatment method capable of promoting the treatment of a wound is provided. The wound treatment method comprising: placing a foam dressing at a wound site; sealing the wound site by attaching a film dressing to the skin adjacent to the wound site; lowering pressure in a sealed space, which is formed between the film dressing and the wound site, to a target negative pressure level by supplying negative pressure generated by a negative pressure generation unit to the sealed space; maintaining the pressure in the sealed space at the target negative pressure level for a first setting period; stopping the supply of the negative pressure for a second setting period, which follows the first setting period; and injecting a medication into the wound site within the second setting period.
    Type: Application
    Filed: January 19, 2016
    Publication date: February 22, 2018
    Inventors: Hyun Seung RYU, Joon Pio Hong, Jun Hyuk Seo, Hee Jun Park, Soon Gee Hong, Kang Jin Jeon, Hoon Kim
  • Publication number: 20180042521
    Abstract: The present invention relates to a wound volume measuring method and device, wherein the method comprises the steps of: disposing a foam dressing on a wound site; hermetically sealing the wound site by attaching a film dressing on skin adjacent to the wound site; supplying a negative pressure to the hermetically sealed space formed between the film dressing and the wound site, and thereby discharging fluid into the hermetically sealed space; measuring the flow of the fluid discharged from the hermetically sealed space; and calculating the volume of the wound site on the basis of the measured fluid flow.
    Type: Application
    Filed: January 19, 2016
    Publication date: February 15, 2018
    Inventors: Hyun Seung Ryu, Joon Pio Hong, Jun Hyuk Seo, Hee Jun Park, Soon Gee Hong, Kang Jin Jeon, Hoon Kim
  • Publication number: 20180028716
    Abstract: The present invention relates to a crystallized glass ceramic comprising 30 wt % to 40 wt % of each of CaSiO3, Ca10(PO4)6(OH)2, and Ca2Mg(Si2O7); a crystallized glass ceramic composition comprising CaSiO3, Ca10(PO4)6(OH)2, and Ca2Mg(Si2O7) in a predetermined weight ratio; a bone graft material comprising the glass ceramic; and an intervertebral spacer or medical device for replacement of bone tissue, which is manufactured using the bone graft material.
    Type: Application
    Filed: May 27, 2015
    Publication date: February 1, 2018
    Inventors: Mi Young RYU, Sung Nam PARK, Jun Hyuk SEO, Hyun Seung RYU
  • Publication number: 20170354502
    Abstract: The present invention relates to a system for producing artificial osseous tissue comprising: a client computer acquiring an image information of a subject bone tissue from an imaging unit that picks up an image of a subject bone tissue of a patient to generate a 3D image information; a server computer identifying the subject bone tissue based on the image information of the subject bone tissue received from the client computer, generating a 3D image information of at least one therapeutic bone tissue model corresponding to the subject bone tissue, and transmitting the 3D image information of the at least one therapeutic bone tissue model to the client computer; and a machining unit for fabricating an artificial bone tissue based on the 3D image information of the therapeutic bone tissue model determined from the server computer.
    Type: Application
    Filed: December 24, 2015
    Publication date: December 14, 2017
    Inventor: Hyun Seung Ryu