Patents by Inventor David Myung

David Myung 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: 20240115390
    Abstract: Provided herein are biomimetic osteochondral implants that are generally useful for the at least partial resurfacing of damaged cartilage within a joint. The implants are constructed to have a modular, layered structure in which the physical properties (e.g., stiffness and lubricity) or dimensions of each layer can be adjusted (e.g., by using the appropriate material and controlling the thickness thereof) based on the anatomy to be replaced. For example, the material and or thicknesses of the layers can be selected to approximate the physical properties and/or dimensions of cartilage (and, optionally, chondral and subchondral bone). Also provided herein are methods of treatment involving the use of said biomimetic osteochondral implants to repair an osteochondral defect in a joint.
    Type: Application
    Filed: September 15, 2023
    Publication date: April 11, 2024
    Inventors: Mira Sahney, David Myung, James Craig Fryman, Michael E. Hawkins
  • Publication number: 20240076438
    Abstract: Methods, compositions, and kits for adhering polymers and other materials to another material, and in particular to bone or bone-like structures or surfaces. A composition of matter includes a urethane dimethacrylate-methyl methacrylate copolymer with a plurality of first polymer regions based on urethane dimethacrylate and a plurality of second polymer regions based on methyl methacrylate. The method includes placing an orthopedic joint implant having an attachment surface in a joint space, applying a first non-urethane-containing precursor, a second urethane-containing precursor, and a initiator to the attachment surface; contacting the first and second precursors and the initiator with the joint surface; and copolymerizing the first and second precursors and forming an adhesive copolymer and attaching the implant to the joint.
    Type: Application
    Filed: August 2, 2023
    Publication date: March 7, 2024
    Inventors: Lampros Kourtis, David Myung, Daniel Chang, Bing Yu, Timothy Sun, Michael J. Jaasma, Vernon Hartdegen
  • Patent number: 11801143
    Abstract: Provided herein are biomimetic osteochondral implants that are generally useful for the at least partial resurfacing of damaged cartilage within a joint. The implants are constructed to have a modular, layered structure in which the physical properties (e.g., stiffness and lubricity) or dimensions of each layer can be adjusted (e.g., by using the appropriate material and controlling the thickness thereof) based on the anatomy to be replaced. For example, the material and or thicknesses of the layers can be selected to approximate the physical properties and/or dimensions of cartilage (and, optionally, chondral and subchondral bone). Also provided herein are methods of treatment involving the use of said biomimetic osteochondral implants to repair an osteochondral defect in a joint.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: October 31, 2023
    Assignee: HYALEX ORTHOPAEDICS, INC.
    Inventors: Mira Sahney, David Myung, James Craig Fryman, Michael E. Hawkins
  • Patent number: 11760830
    Abstract: Methods, compositions, and kits for adhering polymers and other materials to another material, and in particular to bone or bone-like structures or surfaces. A composition of matter includes a urethane dimethacrylate-methyl methacrylate copolymer with a plurality of first polymer regions based on urethane dimethacrylate and a plurality of second polymer regions based on methyl methacrylate. The method includes placing an orthopedic joint implant having an attachment surface in a joint space, applying a first non-urethane-containing precursor, a second urethane-containing precursor, and a initiator to the attachment surface; contacting the first and second precursors and the initiator with the joint surface; and copolymerizing the first and second precursors and forming an adhesive copolymer and attaching the implant to the joint.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: September 19, 2023
    Assignee: Hyalex Orthopaedics, Inc.
    Inventors: Lampros Kourtis, David Myung, Daniel Chang, Bing Yu, Timothy Sun, Michael J. Jaasma, Vernon Hartdegen
  • Publication number: 20230263943
    Abstract: Compositions and methods are provided for lamellar and defect reconstruction of corneal stromal tissue using biomaterials that form a defined hydrogel structure in situ, including interpenetrating (IPN) and semi-IPN hydrogels.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 24, 2023
    Inventors: David Myung, Fang Chen, Gabriella Fernandes-Cunha, Sarah Hull, Sarah Heilshorn, Christopher Lindsay, Christopher Madl, Hyun Jong Lee
  • Publication number: 20230135092
    Abstract: This invention relates to a device and method for the vacuum-assisted delivery of drugs through an intact surface membrane of an organ.
    Type: Application
    Filed: June 6, 2022
    Publication date: May 4, 2023
    Applicant: Vacu-Site Medical, Inc.
    Inventors: Donald J. Eaton, Edward E. Manche, David Myung, Anthony J. Abbate
  • Publication number: 20230040418
    Abstract: Compositions and methods are provided for lamellar and defect reconstruction of corneal stromal tissue using supramolecular complexes that form a defined gel structure in situ. Such gels can serve as cellular or acellular matrices with or without certain encapsulated therapeutic factors to facilitate tissue regeneration such as multilayered re-epithelialization of wounded corneal stromal tissue.
    Type: Application
    Filed: February 24, 2021
    Publication date: February 9, 2023
    Inventors: David Myung, Sei Kwang Hahn, Amy C. Madl
  • Publication number: 20230000628
    Abstract: Provided herein are biomimetic osteochondral implants that are generally useful for the at least partial resurfacing of damaged cartilage within a joint. The implants are constructed to have a modular, layered structure in which the physical properties (e.g., stiffness and lubricity) or dimensions of each layer can be adjusted (e.g., by using the appropriate material and controlling the thickness thereof) based on the anatomy to be replaced. For example, the material and or thicknesses of the layers can be selected to approximate the physical properties and/or dimensions of cartilage (and, optionally, chondral and subchondral bone). Also provided herein are methods of treatment involving the use of said biomimetic osteochondral implants to repair an osteochondral defect in a joint.
    Type: Application
    Filed: July 1, 2021
    Publication date: January 5, 2023
    Inventors: Mira Sahney, David Myung, James Craig Fryman, Michael E. Hawkins
  • Patent number: 11484201
    Abstract: Modular lens adapter system are provided for use with a hand held computer device having a camera for mobile ophthalmoscopy. The modular lens adapter systems include an anterior adapter and a posterior adapter configured to removably engage with a hand held computer device. The anterior adapter can include a variable intensity light source, a clamp, and a movable macro lens. The posterior adapter can include a hand held computer device mount, a lens mount, and a telescoping arm with a first end and a second end with the first end configured to removably engage with the mount and the second end configured to contact the lens mount. Methods are also provided for using the systems to obtain an image of an anterior portion of the patient's eye and a posterior portion of the patient's eye.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: November 1, 2022
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: David Myung, Robert Tienhan Chang, Alexandre Jais
  • Publication number: 20220287883
    Abstract: Precise concentric, symmetric, and repeatable circular scoring (cutting) of Descemet's membrane is made possible by a handheld surgical ophthalmic device. The precision of the cut is provided by a stabilizing point on a stabilizing arm as well the anchoring insertion point at the limbus. Stabilization through the insertion point and the stabilizing arm provides a two-point fixation thereby establishing a cutting plane. The cutting plane allows for precise depth of cut whereas the rotating blade's consistent radius allows for circularity of the cut. The stabilization arm fixates on tissue, and is then removed when the procedure is completed. Consistent torque and contact pressure of the cutting blade is provided through rotational control via the depression of a button on a handle thereby removing the need to “free-hand” the desemetorhexis.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 15, 2022
    Inventors: Michael Mbagwu, David Buickians, David Myung
  • Patent number: 11351347
    Abstract: This invention relates to a device and method for the vacuum-assisted delivery of drugs through an intact surface membrane of an organ.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: June 7, 2022
    Assignee: Vacu-Site Medical, Inc.
    Inventors: David Myung, Edward E. Manche, Donald J. Eaton, Anthony J. Abbate
  • Publication number: 20220088274
    Abstract: Compositions and methods for repairing or regenerating damaged tissue are disclosed. In particular, the invention relates to methods of delivering secreted factors from stem cells to tissues in order to immobilize and concentrate such secreted factors at or under the surface of damaged tissue to promote tissue regeneration.
    Type: Application
    Filed: May 18, 2018
    Publication date: March 24, 2022
    Inventors: David Myung, Gabriella Fernandes-Cunha, Hyun Jong Lee, Ali Djalilian
  • Publication number: 20220023385
    Abstract: The present invention provides polypeptide variants for use in treatment, in particular variants of fibroblast growth factor (FGF) and variants of hepatocyte growth factor (HGF) for use in combination to treat corneal epithelial defects (PCEDs) and/or corneal neovascularization.
    Type: Application
    Filed: October 9, 2019
    Publication date: January 27, 2022
    Inventors: Jennifer R. COCHRAN, David Myung
  • Publication number: 20210332179
    Abstract: Methods, compositions, and kits for adhering polymers and other materials to another material, and in particular to bone or bone-like structures or surfaces. A composition of matter includes a urethane dimethacrylate-methyl methacrylate copolymer with a plurality of first polymer regions based on urethane dimethacrylate and a plurality of second polymer regions based on methyl methacrylate. The method includes placing an orthopedic joint implant having an attachment surface in a joint space, applying a first non-urethane-containing precursor, a second urethane-containing precursor, and a initiator to the attachment surface; contacting the first and second precursors and the initiator with the joint surface; and copolymerizing the first and second precursors and forming an adhesive copolymer and attaching the implant to the joint.
    Type: Application
    Filed: May 3, 2021
    Publication date: October 28, 2021
    Inventors: Lampros KOURTIS, David MYUNG, Daniel CHANG, Bing YU, Timothy SUN, Michael J. JAASMA, Vernon HARTDEGEN
  • Publication number: 20210315687
    Abstract: An implantable artificial capsule and a method of implantation are provided. The implantable artificial capsule has a ring with a central opening to accommodate an intraocular lens and at least three haptic arms extending substantially orthogonal from the outer surface of the ring. Each arm has transcleral anchors for sutureless scleral fixation. Upon implantation of the implantable artificial capsule the arms are externalized trans-sclerally and atraumatically. The arms sit subconjunctivally. The implantable artificial capsule does not have any sutures for fixation and is suturelessly implanted in an eye, which is a major advantage as it significantly reduces complications during surgery and recovery.
    Type: Application
    Filed: October 13, 2019
    Publication date: October 14, 2021
    Inventors: Frank L. Brodie, David Myung, David Buickians
  • Publication number: 20210244659
    Abstract: Compositions and methods are provided for lamellar and defect reconstruction of corneal stromal tissue using biomaterials that form a defined gel structure in situ. Such gels can serve as cellular or acellular lamellar substitutes to reconstruct corneal stroma, facilitate matrix remodeling, and support multilayered re-epithelialization of wounded corneal stromal tissue, as well delivery vehicles for cells, biomolecules, and/or pharmaceutical agents to wound sites throughout the body.
    Type: Application
    Filed: June 27, 2019
    Publication date: August 12, 2021
    Inventors: David Myung, Sarah Hull, Sarah Heilshorn, Christopher Lindsay, Christopher Madl, Hyun Jong Lee
  • Patent number: 11015016
    Abstract: Methods, compositions, and kits for adhering polymers and other materials to another material, and in particular to bone or bone-like structures or surfaces. A composition of matter includes a urethane dimethacrylate-methyl methacrylate copolymer with a plurality of first polymer regions based on urethane dimethacrylate and a plurality of second polymer regions based on methyl methacrylate. The method includes placing an orthopedic joint implant having an attachment surface in a joint space, applying a first non-urethane-containing precursor, a second urethane-containing precursor, and a initiator to the attachment surface; contacting the first and second precursors and the initiator with the joint surface; and copolymerizing the first and second precursors and forming an adhesive copolymer and attaching the implant to the joint.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: May 25, 2021
    Assignee: Hyalex Orthopaedics, Inc.
    Inventors: Lampros Kourtis, David Myung, Daniel Chang, Bing Yu, Timothy Sun, Michael J. Jaasma, Vernon Hartdegen
  • Publication number: 20200281465
    Abstract: Modular lens adapter system are provided for use with a hand held computer device having a camera for mobile ophthalmoscopy. The modular lens adapter systems include an anterior adapter and a posterior adapter configured to removably engage with a hand held computer device. The anterior adapter can include a variable intensity light source, a clamp, and a movable macro lens. The posterior adapter can include a hand held computer device mount, a lens mount, and a telescoping arm with a first end and a second end with the first end configured to removably engage with the mount and the second end configured to contact the lens mount. Methods are also provided for using the systems to obtain an image of an anterior portion of the patient's eye and a posterior portion of the patient's eye.
    Type: Application
    Filed: February 14, 2020
    Publication date: September 10, 2020
    Inventors: David MYUNG, Robert Tienhan CHANG, Alexandre JAIS
  • Patent number: 10752768
    Abstract: Orthopedic implants having a bone interface member and a water swellable IPN or semi-IPN with a stiffness, hydration, and/or composition gradient from one side to the other and physically attached to the bone interface member. The invention also includes an orthopedic implant system including an implant that may conform to a bone surface and a joint capsule. The invention also includes orthopedic implants with water swellable IPN or semi-IPNs including a hydrophobic thermoset or thermoplastic polymer first network and an ionic polymer second network, joint capsules, labral components, and bone interface members. The invention also includes a method of inserting an orthopedic implant having a metal portion and a flexible polymer portion into a joint, including inserting the implant in a joint in a first shape and changing the implant from a first shape to a second shape to conform to a shape of a bone.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: August 25, 2020
    Assignee: Hyalex Orthopaedics, Inc.
    Inventors: David Myung, Michael J. Jaasma, Lampros Kourtis, Curtis W. Frank
  • Patent number: 10743761
    Abstract: A modular lens adapter system or kit is provided for mobile anterior and posterior segment ophthalmoscopy. Equipped with various lens adapter modules, respective lenses and a mobile imaging device, a user is provided with tools for various mobile ophthalmoscopy imaging applications. Eye care practitioners can use their existing lenses to customize the modular lens adapter system in a cost-effective way, which allows for mobile and remote capture, viewing, and utilization of clinical images. The various modules are also adaptable to nearly any type of phone or tablet regardless of its dimensions or presence of a protective case. The invention also addresses the need for fewer, smaller, less expensive, and easier to use ophthalmic imaging equipment, which is further important in enabling a broad base of users.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: August 18, 2020
    Assignee: The Board of Trustees of the Leland Stanford Junior Univeristy
    Inventors: David Myung, Robert Tienhan Chang, Lingmin He, Alex Nugent, Huynh P. Van, Ira G. Wong, Alexandre Jais, Mark Blumenkranz