Patents by Inventor Georgios STEFOPOULOS

Georgios STEFOPOULOS 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: 20260108455
    Abstract: Device for sustained controlled release of therapeutically active substance after implantation of the device alone or in combination with further implantable elements. The device has one layer of material having at least one therapeutically active substance, wherein the layer has a biodegradable matrix consisting of a mixture of 60-95% by dry weight of a first component (A) in the form of a copolymer of DL-lactide and glycolide (PLGA) with a molar ratio of DL-lactide to glycolide in the range of 40:60-60:40 and with a weight average molecular weight (MWw) in the range of 100,000-150,000 g/mol and 5-40% by dry weight of a second component (B) in the form of polyethylene glycol (PEG), the dry weights of component (A) and (B) complementing to 100% of the matrix. In this matrix the at least one therapeutically active substance is dissolved and/or suspended.
    Type: Application
    Filed: June 29, 2023
    Publication date: April 23, 2026
    Applicant: Hylomorph AG
    Inventors: Aldo FERRARI, Simone BOTTAN, Francesco ROBOTTI, Georgios STEFOPOULOS
  • Publication number: 20240350814
    Abstract: Method for the preparation of an implantable device, wherein in a first step a non-degradable implantable device is at least partially covered or surrounded by at least one separate layer of material comprising a therapeutically active substance providing for sustained controlled release of said substance under physiological conditions, and wherein in a second step this is inserted into a wet or humid pouch through an opening thereof.
    Type: Application
    Filed: June 7, 2022
    Publication date: October 24, 2024
    Applicant: Hylomorph AG
    Inventors: Aldo FERRARI, Simone BOTTAN, Francesco ROBOTTI, Georgios STEFOPOULOS
  • Publication number: 20240307056
    Abstract: A suture fastener is provided that is shaped so as to define a spiral portion and a radially-inward portion that is disposed radially inward from the spiral portion. The suture fastener, when in a resting state, has an unlocked conical helical configuration, in which the spiral portion is conically helical. The suture fastener is configured, upon being axially plastically deformed, when one or more portions of one or more sutures pass through respective portions of the suture fastener, to transition from the unlocked conical helical configuration to a locked planar spiral configuration, in which the spiral portion is planar spiral and the one or more sutures are fixedly coupled to the suture fastener. The radially-inward portion is neither helical nor spiral, both when the suture fastener is in the unlocked conical helical configuration and when the suture fastener is in the locked planar spiral configuration. Other embodiments are also described.
    Type: Application
    Filed: May 22, 2024
    Publication date: September 19, 2024
    Applicant: SV SWISSVORTEX LTD.
    Inventors: Andrea GUIDOTTI, Idan TOBIS, Georgios STEFOPOULOS
  • Publication number: 20240237987
    Abstract: An occlusion device is provided for occluding a left atrial appendage (LAA), including a compliant balloon defining a fluid-tight balloon chamber, and an actuating shaft, which is disposed at least partially within the balloon chamber for setting a distance between distal and proximal end portions of the balloon. A proximal LAA-orifice cover includes a frame and a covering fixed to the frame. An orifice-support stent is fixed to and extends distally from the proximal LAA-orifice cover, and is generally cylindrical when in a radially-expanded state. Other embodiments are also described.
    Type: Application
    Filed: March 28, 2024
    Publication date: July 18, 2024
    Applicant: UNIVERSITÄT ZÜRICH Zurich
    Inventors: Andrea GUIDOTTI, Francesco MAISANO, Monica TOCCHI, Boaz HARARI, Georgios STEFOPOULOS, Pietro GOZZOLI, Luca VICENTINI
  • Patent number: 12004737
    Abstract: A surgical fastener instrument (30) includes an outer delivery tube (36); an inner delivery shaft (42), disposed at least partially in the outer delivery tube (36); and a handle (44) coupled to a proximal portion (46) of the outer delivery tube (36), and including a user control element (48) arranged to rotate the inner delivery shaft (42) with respect to the outer delivery tube (36). A suture fastener (32) is removably disposed in the outer delivery tube (36) in an unlocked conical helical configuration. Distal advancement of the inner delivery shaft (42), when one or more portions of one or more sutures (22) pass through respective portions of the suture fastener (32), transitions the suture fastener (32) from the unlocked configuration to a locked planar spiral configuration, in which the one or more sutures (22) are fixedly coupled to the suture fastener (32). Other embodiments are also described.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: June 11, 2024
    Assignee: SV SWISSVORTEX LTD.
    Inventors: Andrea Guidotti, Idan Tobis, Georgios Stefopoulos
  • Patent number: 11944315
    Abstract: An occlusion device (210) is provided for occluding a left atrial appendage (LAA), including a compliant balloon (230) defining a fluid-tight balloon chamber (232), and an actuating shaft (234), which is disposed at least partially within the balloon chamber (232) for setting a distance between distal and proximal end portions (236, 238) of the balloon (230). A proximal LAA-orifice cover (70) includes a frame (72) and a covering (74) fixed to the frame (72). An orifice-support stent (290) is fixed to and extends distally from the proximal LAA-orifice cover (70), and is generally cylindrical when in a radially-expanded state. Other embodiments are also described.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: April 2, 2024
    Assignee: UNIVERSITÄT ZÜRICH
    Inventors: Andrea Guidotti, Luca Vicentini, Boaz Harari, Pietro Gozzoli, Georgios Stefopoulos, Monica Tocchi, Francesco Maisano
  • Publication number: 20230390057
    Abstract: A split-frame cardiac valve (20) is configured to assume a radially compressed configuration for transcatheter delivery and a radially expanded configuration for anchoring to a native cardiac valve annulus. The split-frame cardiac valve (20) includes circumferential frame segments (22) including respective stents (24) and prosthetic leaflets (30). When the split-frame cardiac valve (20) is in the radially expanded configuration: (a) each of the stents (24) surrounds less than 360 degrees of a central longitudinal axis (26) of the split-frame cardiac valve (20), (b) the circumferential frame segments (22) are slidingly coupled to one another so as to be axially slidable with respect to one another in and out of axial alignment with one another, and (c) when the circumferential frame segments (22) are axially aligned with one another, the stents (24) collectively define a tubular stent (32) that entirely surrounds the central longitudinal axis (26).
    Type: Application
    Filed: June 9, 2023
    Publication date: December 7, 2023
    Applicant: Open Stent Solution SAS
    Inventors: Andrea Guidotti, David Zarbatany, Ricardo Roman, Georgios Stefopoulos, Pietro Gozzoli
  • Publication number: 20220370079
    Abstract: An occlusion device (210) is provided for occluding a left atrial appendage (LAA), including a compliant balloon (230) defining a fluid-tight balloon chamber (232), and an actuating shaft (234), which is disposed at least partially within the balloon chamber (232) for setting a distance between distal and proximal end portions (236, 238) of the balloon (230). A proximal LAA-orifice cover (70) includes a frame (72) and a covering (74) fixed to the frame (72). An orifice-support stent (290) is fixed to and extends distally from the proximal LAA-orifice cover (70), and is generally cylindrical when in a radially-expanded state. Other embodiments are also described.
    Type: Application
    Filed: September 24, 2020
    Publication date: November 24, 2022
    Applicant: UNIVERSITÄT ZÜRICH
    Inventors: Boaz HARARI, Andrea GUIDOTTI, Francesco MAISANO, Monica TOCCHI, Georgios STEFOPOULOS, Pietro GOZZOLI, Luca VICENTINI
  • Publication number: 20220183841
    Abstract: An instrument for repairing an atrioventricular heart valve, mitral heart valve or tricuspid heart valve includes a first tube having a tube axis defining an axial direction. A leaflet grabbing structure is arranged at a distal part of the first tube and contiguous to the first tube. The leaflet grabbing structure has a main body and a jaw, the jaw being movable relative to the main body. The jaw has a first proximally facing abutment surface and the main body has a second, distally facing abutment surface. The instrument has a needle that is cannulated and forms an inner tube. The needle is releasable from the first tube and movable relative to the main body in axial directions. The leaflet grabbing structure clamps a leaflet of the heart valve between the first and second abutment surfaces, while the jaw allows the needle to extend therethrough.
    Type: Application
    Filed: March 17, 2020
    Publication date: June 16, 2022
    Inventors: Thomas Bauer, Tommaso Sironi, Michael Roth, Silvio Schaffner, Andrea Guidotti, David Zarbatany, Jesus Flores, Georgios Stefopoulos, Luca Vicentini, Mattia Arduini
  • Publication number: 20210393258
    Abstract: A surgical fastener instrument (30) includes an outer delivery tube (36); an inner delivery shaft (42), disposed at least partially in the outer delivery tube (36); and a handle (44) coupled to a proximal portion (46) of the outer delivery tube (36), and including a user control element (48) arranged to rotate the inner delivery shaft (42) with respect to the outer delivery tube (36). A suture fastener (32) is removably disposed in the outer delivery tube (36) in an unlocked conical helical configuration. Distal advancement of the inner delivery shaft (42), when one or more portions of one or more sutures (22) pass through respective portions of the suture fastener (32), transitions the suture fastener (32) from the unlocked configuration to a locked planar spiral configuration, in which the one or more sutures (22) are fixedly coupled to the suture fastener (32). Other embodiments are also described.
    Type: Application
    Filed: February 26, 2019
    Publication date: December 23, 2021
    Applicant: SV SWISSVORTEX LTD.
    Inventors: Andrea GUIDOTTI, Idan TOBIS, Georgios STEFOPOULOS