Patents Assigned to Symetis SA
  • Patent number: 12569337
    Abstract: A delivery catheter for a prosthetic heart valve, the valve expandable from a collapsed condition for delivery to an expanded condition for implantation, the delivery catheter comprising: a holder for engaging the valve in the collapsed state of the valve, the holder configured such that (i) in response to a radial compression force exerted thereon, the holder has a first shape defining an exposed engagement region for engaging at least a portion of the collapsed prosthetic heart valve for restraining axial displacement of the prosthetic valve in at least one axial direction of the catheter, and (ii) in response to removal of the radial compression force upon expansion of the valve, at least a portion of the holder transitions to a second shape.
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: March 10, 2026
    Assignee: Symetis SA
    Inventors: Fabien Lombardi, Youssef Biadillah, Jean-Luc Hefti, Luc Mantanus, Stephane Delaloye
  • Patent number: 12544220
    Abstract: Embodiments of the present disclosure are directed to stents, valved-stents, and associated methods and systems for their delivery via minimally-invasive surgery.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: February 10, 2026
    Assignee: Symetis SA
    Inventors: Jacques Essinger, Youssef Biadillah, Stephane Delaloye, Jean-Luc Hefti, Luc Mantanus, Reynald Passerini
  • Patent number: 12533229
    Abstract: Embodiments herein relate to cardiac stent-valves for transcatheter delivery. A cardiac stent-valve for transcatheter delivery is compressible to a compressed state for delivery and expandable to an expanded state for implantation. The stent-valve can include a stent with an axial inflow end and an axial outflow end, a plurality of leaflets arranged within the stent, and a structured sealing skirt for reduction or prevention of paravalvular leakage. The structured sealing skirt comprises one or more sealing formations arranged on a radially outer surface of the structured sealing skirt. At least in the expanded state, at least one of the one or more sealing formations is shaped and arranged such that, at each axial level of the structured sealing skirt covered by the one or more sealing formations. Other embodiments are also included herein.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: January 27, 2026
    Assignee: Symetis SA
    Inventors: Arnaud Humair, Jean-Luc Hefti, Stephane Delaloye
  • Patent number: 12478468
    Abstract: Embodiments herein include a cardiac stent-valve for transcatheter delivery being compressible to a compressed state for delivery, and expandable to an expanded state for implantation. The stent-valve including a stent with an axial inflow end and an axial outflow end, a plurality of leaflets arranged within the stent, and a sealing skirt for reduction or prevention of paravalvular leakage. In the expanded state, the sealing skirt includes a tubular inner wall and at least one pocket which is positioned on the tubular inner wall and comprises an outer wall which extends radially outward from the tubular inner wall. The pocket is configured to be distended radially outward in response to inflow of blood in the expanded state. In the expanded state, the outer wall of the pocket includes one or more pre-shaped bulges which extend radially outward from the outer wall of the pocket. Other embodiments are also included herein.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: November 25, 2025
    Assignee: Symetis SA
    Inventors: Arnaud Humair, Jean-Luc Hefti, Stephane Delaloye
  • Publication number: 20250255720
    Abstract: A delivery catheter for a stent. The delivery catheter may comprise a distal end and a proximal end. The distal end includes a stent attachment region adapted to receive a stent. The stent may be of the self-expanding type. The catheter further comprises a handle at its proximal end and at least one sheath which may at least partially circumferentially cover said stent such as to retain it in a collapsed configuration. The sheath is coupled at its proximal end to an actuator located on said handle portion.
    Type: Application
    Filed: April 7, 2025
    Publication date: August 14, 2025
    Applicant: Symetis SA
    Inventors: JACQUES ESSINGER, STEPHANE DELALOYE, JEAN-LUC HEFTI, LUC MANTANUS
  • Publication number: 20250161041
    Abstract: Embodiments of the present disclosure are directed to stents, valved-stents, (e.g., single-stent-valves and double stent/valved-stent systems) and associated methods and systems for their delivery via minimally-invasive surgery. The stent component comprises a first stent section (102) a second stent section (104) a third stent section (106) and a fourth stent section (108).
    Type: Application
    Filed: January 17, 2025
    Publication date: May 22, 2025
    Applicant: Symetis SA
    Inventors: Jacques Essinger, Serge Delaloye, Jean-Luc Hefti, Stephane Delaloye
  • Publication number: 20250152345
    Abstract: Embodiments of the present disclosure are directed to stents, valved-stents, (e.g., single-stent-valves and double stent/valved-stent systems) and associated methods and systems for their delivery via minimally-invasive surgery. The stent component comprises a first stent section (102) a second stent section (104) a third stent section (106) and a fourth stent section (108).
    Type: Application
    Filed: January 16, 2025
    Publication date: May 15, 2025
    Applicant: Symetis SA
    Inventors: Jacques Essinger, Serge Delaloye, Jean-Luc Hefti, Stephane Delaloye
  • Publication number: 20250152346
    Abstract: A device for heart valve replacement comprises a valve component having at least two valve leaflets preferably made of pericardium tissue. Each valve leaflet includes at least two tabs. The device further includes a stent component configured to be radially compressible into a compressed state and expandable into a functional state. The stent component comprises a first end, a second end and at least one intermediate section arranged between said first and said second end. The intermediate section has at least two commissural posts generally aligned parallel to an axis spanning from the first end to the second end. The commissural posts are formed in the shape of a wishbone.
    Type: Application
    Filed: January 16, 2025
    Publication date: May 15, 2025
    Applicant: Symetis SA
    Inventors: Youssef Biadillah, Stephane Delaloye, Fabien Lombardi, Jean-Luc Hefti
  • Patent number: 12268603
    Abstract: A delivery catheter for a stent. The delivery catheter may comprise a distal end and a proximal end. The distal end includes a stent attachment region adapted to receive a stent. The stent may be of the self-expanding type. The catheter further comprises a handle at its proximal end and at least one sheath which may at least partially circumferentially cover said stent such as to retain it in a collapsed configuration. The sheath is coupled at its proximal end to an actuator located on said handle portion.
    Type: Grant
    Filed: September 14, 2023
    Date of Patent: April 8, 2025
    Assignee: Symetis SA
    Inventors: Jacques Essinger, Stephane Delaloye, Jean-Luc Hefti, Luc Mantanus
  • Publication number: 20250090319
    Abstract: Embodiments of the present disclosure are directed to stents, valved-stents, (e.g., single-stent-valves and double stent/valved-stent systems) and associated methods and systems for their delivery via minimally-invasive surgery. The stent component comprises a first stent section (102) a second stent section (104) a third stent section (106) and a fourth stent section (108).
    Type: Application
    Filed: December 5, 2024
    Publication date: March 20, 2025
    Applicant: Symetis SA
    Inventors: Jacques Essinger, Serge Delaloye, Jean-Luc Hefti, Stephane Delaloye
  • Publication number: 20250032253
    Abstract: Apparatus (40) for compressing a transcatheter cardiac stent-valve (10) comprises: a first compressor stage (100) including a hollow channel (42) with a tapered interior surface configured for compressing a stent-valve in response to longitudinal advancement of the stent-valve within the channel; and a second compressor stage (102) comprising a crimper for compressing a portion of the stent-valve without longitudinal advancement.
    Type: Application
    Filed: October 14, 2024
    Publication date: January 30, 2025
    Applicant: Symetis SA
    Inventors: Luc Mantanus, Fabien Lombardi, Pierre Simonin, Youssef Biadillah, Jean-Luc Hefti, Stephane Delaloye
  • Patent number: 12171657
    Abstract: Embodiments of the present disclosure are directed to stents, valved-stents, (e.g., single-stent-valves and double stent/valved-stent systems) and associated methods and systems for their delivery via minimally-invasive surgery. The stent component comprises a first stent section (102) a second stent section (104) a third stent section (106) and a fourth stent section (108).
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: December 24, 2024
    Assignee: Symetis SA
    Inventors: Jacques Essinger, Serge Delaloye, Jean-Luc Hefti, Stephane Delaloye
  • Patent number: 12138162
    Abstract: Apparatus (40) for compressing a transcatheter cardiac stent-valve (10) comprises: a first compressor stage (100) including a hollow channel (42) with a tapered interior surface configured for compressing a stent-valve in response to longitudinal advancement of the stent-valve within the channel; and a second compressor stage (102) comprising a crimper for compressing a portion of the stent-valve without longitudinal advancement.
    Type: Grant
    Filed: September 7, 2023
    Date of Patent: November 12, 2024
    Assignee: Symetis SA
    Inventors: Luc Mantanus, Fabien Lombardi, Pierre Simonin, Youssef Biadillah, Jean-Luc Hefti, Stephane Delaloye
  • Patent number: 12115070
    Abstract: Embodiments include implantable valves with attached polymeric components. In an embodiment, an implantable valve is included having a frame comprising a plurality of frame struts. The frame defines a central lumen and at least one of the frame struts defines a connection aperture. The implantable valve can include at least one valve leaflet including a coaptation edge and two connection portions, with one connection portion disposed on either end of the coaptation edge. The connection portion can be disposed within the connection aperture thereby coupling the valve leaflet to the frame. Other embodiments are also included herein.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: October 15, 2024
    Assignee: Symetis SA
    Inventor: Stephane Delaloye
  • Publication number: 20240000568
    Abstract: A delivery catheter for a stent. The delivery catheter may comprise a distal end and a proximal end. The distal end includes a stent attachment region adapted to receive a stent. The stent may be of the self-expanding type. The catheter further comprises a handle at its proximal end and at least one sheath which may at least partially circumferentially cover said stent such as to retain it in a collapsed configuration. The sheath is coupled at its proximal end to an actuator located on said handle portion.
    Type: Application
    Filed: September 14, 2023
    Publication date: January 4, 2024
    Applicant: Symetis SA
    Inventors: JACQUES ESSINGER, STEPHANE DELALOYE, JEAN-LUC HEFTI, LUC MANTANUS
  • Publication number: 20230414352
    Abstract: Apparatus (40) for compressing a transcatheter cardiac stent-valve (10) comprises: a first compressor stage (100) including a hollow channel (42) with a tapered interior surface configured for compressing a stent-valve in response to longitudinal advancement of the stent-valve within the channel; and a second compressor stage (102) comprising a crimper for compressing a portion of the stent-valve without longitudinal advancement.
    Type: Application
    Filed: September 7, 2023
    Publication date: December 28, 2023
    Applicant: Symetis SA
    Inventors: Luc Mantanus, Fabien Lombardi, Pierre Simonin, Youssef Biadillah, Jean-Luc Hefti, Stephane Delaloye
  • Publication number: 20230404735
    Abstract: Apparatus (40) for compressing a transcatheter cardiac stent-valve (10) comprises: a hollow channel (42) having an interior surface (50) shaped for progressively compressing the stent-valve in response to longitudinal advancement of the stent-valve within the channel; a driver (46) threadedly engaged on the exterior of the channel for generating a longitudinal driving force in response to rotation; a mover (44) having limbs (56) that project through slots (58) in the channel wall to transmit the driving force to the stent-valve within the channel; and a channel extension (48) removably attachable at the exit (54) to provide a generally cylindrical containment bore (66).
    Type: Application
    Filed: September 1, 2023
    Publication date: December 21, 2023
    Applicant: Symetis SA
    Inventors: Jacques Essinger, Stephane Delaloye, Jean-Luc Hefti, Luc Mantanus, Michael Paris
  • Publication number: 20230338141
    Abstract: A delivery catheter for a prosthetic heart valve, the valve expandable from a collapsed condition for delivery to an expanded condition for implantation, the delivery catheter comprising: a holder for engaging the valve in the collapsed state of the valve, the holder configured such that (i) in response to a radial compression force exerted thereon, the holder has a first shape defining an exposed engagement region for engaging at least a portion of the collapsed prosthetic heart valve for restraining axial displacement of the prosthetic valve in at least one axial direction of the catheter, and (ii) in response to removal of the radial compression force upon expansion of the valve, at least a portion of the holder transitions to a second shape.
    Type: Application
    Filed: June 30, 2023
    Publication date: October 26, 2023
    Applicant: Symetis SA
    Inventors: Fabien Lombardi, Youssef Biadillah, Jean-Luc Hefti, Luc Mantanus, Stephane Delaloye
  • Patent number: 11793636
    Abstract: A delivery catheter for a prosthetic heart valve, the valve expandable from a collapsed condition for delivery to an expanded condition for implantation, the delivery catheter comprising: a holder for engaging the valve in the collapsed state of the valve, the holder configured such that (i) in response to a radial compression force exerted thereon, the holder has a first shape defining an exposed engagement region for engaging at least a portion of the collapsed prosthetic heart valve for restraining axial displacement of the prosthetic valve in at least one axial direction of the catheter, and (ii) in response to removal of the radial compression force upon expansion of the valve, at least a portion of the holder transitions to a second shape.
    Type: Grant
    Filed: April 13, 2019
    Date of Patent: October 24, 2023
    Assignee: Symetis SA
    Inventors: Fabien Lombardi, Youssef Biadillah, Jean-Luc Hefti, Luc Mantanus, Stephane Delaloye
  • Patent number: 11786372
    Abstract: Apparatus (40) for compressing a transcatheter cardiac stent-valve (10) comprises: a first compressor stage (100) including a hollow channel (42) with a tapered interior surface configured for compressing a stent-valve in response to longitudinal advancement of the stent-valve within the channel; and a second compressor stage (102) comprising a crimper for compressing a portion of the stent-valve without longitudinal advancement.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: October 17, 2023
    Assignee: Symetis SA
    Inventors: Luc Mantanus, Fabien Lombardi, Pierre Simonin, Youssef Biadillah, Jean-Luc Hefti, Stephane Delaloye