Patents by Assignee Symetis SA
  • Publication number: 20170290661
    Abstract: Stent-valves (e.g., single-stent-valves and double-stent-valves), associated methods and systems for their delivery via minimally-invasive surgery, and guide-wire compatible closure devices for sealing access orifices are provided.
    Type: Application
    Filed: June 23, 2017
    Publication date: October 12, 2017
    Applicant: Symetis SA
    Inventors: Ludwig K. VON SEGESSER, Stephane DELALOYE
  • Patent number: 9675485
    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 9, 2011
    Date of Patent: June 13, 2017
    Assignee: Symetis SA
    Inventors: Jacques Essinger, Stephane Delaloye, Jean-Luc Hefti, Luc Mantanus
  • Publication number: 20160262884
    Abstract: A delivery apparatus for delivering a stent-valve for implantation within the body, the delivery apparatus configured for introduction into the body through an arterial introducer of a type having a stem insertable into the body and a mouth section that remains outside the body, the mouth section including a haemostasis valve, and wherein the delivery apparatus comprises: a first constraining sheath at a stent-valve accommodation region of the apparatus at a distal end of the apparatus, and configured for constraining at least a portion of a stent-valve at the accommodation region in a radially collapsed configuration; a delivery introducer captive on the delivery apparatus, and slidable between a first position surrounding at least a portion of the stent-valve accommodation region, and a second position in which the delivery introducer slides proximally of the stent-valve accommodation region; wherein the delivery introducer is insertable at least partly into the mouth of a said arterial introducer, the deli
    Type: Application
    Filed: October 28, 2014
    Publication date: September 15, 2016
    Applicant: SYMETIS SA
    Inventors: Fabien LOMBARDI, Jacques ESSINGER, Stéphane DELALOYE, Jean-Luc HEFTI, Luc MANTANUS, Youssef BIADILLAH, Pierre SIMONIN
  • Patent number: 9414915
    Abstract: A delivery catheter (12) for a stent valve (10), the delivery catheter having a distal portion (14) insertable into an anatomy, the distal portion comprising an accommodation region (18) for accommodating a stent-valve for delivery into the anatomy, the delivery catheter further comprising at least one sheath (20; 22) that is translatable between a closed position for at least partly closing the accommodation region and an open position for at least partly opening the accommodation region.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: August 16, 2016
    Assignee: Symetis SA
    Inventors: Fabien Lombardi, Jacques Essinger, Stephane Delaloye, Jean-Luc Hefti, Luc Mantanus, Youssef Biadillah
  • Publication number: 20160193047
    Abstract: A guide catheter is described for introduction into a patient's vasculature, to provide a substantially continuous guide lumen within the vasculature to the ascending aorta, through which one or more other functional catheters may be introduced and removed during the procedure. The guide catheter includes an aligner at its distal region for aligning the position and/or inclination of the distal region of the guide catheter with respect to the ascending aorta. The aligner includes an embolic protection filter. The guide catheter is made of material collapsible/distensible in cross section to adopt a small shape when no catheter is present inside, and to distend to a large shape to accommodate passage of functional catheter therethrough. The cross-section shape collapses/distends by folding/unfolding of material without elastic stretching of the material.
    Type: Application
    Filed: March 17, 2016
    Publication date: July 7, 2016
    Applicant: Symetis SA
    Inventors: Stephane Delaloye, Jean-Luc Hefti, Youssef Biadillah
  • Patent number: 9333075
    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: Grant
    Filed: September 12, 2011
    Date of Patent: May 10, 2016
    Assignee: Symetis SA
    Inventors: Youssef Biadillah, Stephane Delaloye, Fabien Lombardi, Jean-Luc Hefti
  • Publication number: 20160022444
    Abstract: Embodiments of the present disclosure are related to devices and techniques for para-valve sealing of an expandable stent-valve implanted using a catheter. In some embodiments, a stent-valve is provided which comprises a seal sleeve/cuff containing material that swells when contacted by blood. A piercing tool may be included and used to permit a user to puncture the sleeve/cuff prior to introduction into a patient's body. In some embodiments, the sleeve/cuff has an integral tubular structure configured to withstand balloon expansion of the stent-valve during or after implantation. In some embodiments, the seal is provided as a separate component from the stent-valve.
    Type: Application
    Filed: March 13, 2014
    Publication date: January 28, 2016
    Applicant: SYMETIS SA
    Inventors: Stéphane Delaloye, Jacques Essinger, Jean-Luc Hefti, Youssef Biadillah, Luc Mantanus, Fabien Lombardi, Lionel Flaction, Yutit Wanakoht
  • Publication number: 20150366665
    Abstract: A delivery catheter for a prosthetic heart valve, the valve expandable from a collapsed condition for delivery to an ex paneled 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: February 6, 2014
    Publication date: December 24, 2015
    Applicant: Symetis SA
    Inventors: Fabien LOMBARDI, Youssef BIADILLAH, Jean-Luc HEFTI, Luc MANTANUS, Stéphane DELALOYE
  • Patent number: 9216082
    Abstract: Stent-valves (e.g., single-stent-valves and double-stent-valves), associated methods and systems for their delivery via minimally-invasive surgery, and guide-wire compatible closure devices for sealing access orifices are provided.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: December 22, 2015
    Assignee: Symetis SA
    Inventors: Ludwig K. Von Segesser, Stéphane Delaloye
  • Publication number: 20150245934
    Abstract: A delivery device for delivering a stent-valve to an anatomical site for implantation, the delivery device comprising a stent-holder (24) having at least one element for engaging the stent-valve for retaining an axial position of the stent-valve when carried on the delivery device, the element selected from a projection (84b) and/or a generally step-shaped surface, and wherein the element further comprises a ramp portion (84a, 84c) facing, or provided on a side of the element that faces, (i) a proximal direction of the device, and/or (ii) away from a distal end of the device.
    Type: Application
    Filed: September 27, 2013
    Publication date: September 3, 2015
    Applicant: SYMETIS SA
    Inventors: Fabien Lombardi, Stephane Delaloye, Jean-Luc Hefti, Luc Mantanus
  • Publication number: 20150094801
    Abstract: Stent-valves (e.g., single-stent-valves and double-stent-valves), associated methods and systems for their delivery via minimally-invasive surgery, and guide-wire compatible closure devices for sealing access orifices are provided.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 2, 2015
    Applicant: SYMETIS SA
    Inventors: LUDWIG K. VON SEGESSER, STÉPHANE DELALOYE
  • Publication number: 20150018938
    Abstract: Stent-valves (e.g., single-stent-valves and double-stent-valves), associated methods and systems for their delivery via minimally-invasive surgery, and guide-wire compatible closure devices for sealing access orifices are provided.
    Type: Application
    Filed: August 28, 2014
    Publication date: January 15, 2015
    Applicant: SYMETIS SA
    Inventors: Ludwig K. VON SEGESSER, Stéphane DELALOYE
  • Publication number: 20140350668
    Abstract: Embodiments of the present disclosure are related to devices and techniques for para-valve sealing of an expandable stent-valve implanted using a catheter. In some embodiments, a stent-valve is provided which comprises a seal sleeve/cuff containing material that swells when contacted by blood. A piercing tool may be included and used to permit a user to puncture the sleeve/cuff prior to introduction into a patient's body. In some embodiments, the sleeve/cuff has an integral tubular structure configured to withstand balloon expansion of the stent-valve during or after implantation.
    Type: Application
    Filed: March 7, 2014
    Publication date: November 27, 2014
    Applicant: SYMETIS SA
    Inventors: Stephane Delaloye, Jacques Essinger, Jean-Luc Hefti, Youssef Biadillah, Luc Mantanus, Fabien Lombardi
  • Publication number: 20140309685
    Abstract: Embodiments of the present disclosure are directed to apical closure systems, devices, and methods and systems for use thereof, for closing surgical openings or defects in the wall of the heart.
    Type: Application
    Filed: June 25, 2014
    Publication date: October 16, 2014
    Applicant: SYMETIS SA
    Inventors: Stephane DELALOYE, Jean-Luc HEFTI, Reynald PASSERINI
  • Publication number: 20140277402
    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, 2014
    Publication date: September 18, 2014
    Applicant: Symetis SA
    Inventors: Jacques Essinger, Serge Delaloye, Jean-Luc Hefti, Stephane Delaloye
  • Publication number: 20140200649
    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: Application
    Filed: January 11, 2012
    Publication date: July 17, 2014
    Applicant: Symetis SA
    Inventors: Jacques Essinger, Stephane Delaloye, Jean-Luc Hefti, Youssef Biadillah, Luc Mantanus, Iker Mallabiabarrena, Michael Paris, Fabien Lombardi
  • Patent number: 8647381
    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: October 27, 2008
    Date of Patent: February 11, 2014
    Assignee: Symetis SA
    Inventors: Jacques Essinger, Serge Delaloye, Jean-Luc Hefti, Stephane Delaloye
  • Publication number: 20140018915
    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: September 12, 2011
    Publication date: January 16, 2014
    Applicant: SYMETIS SA
    Inventors: Youssef Biadillah, Stephane Delaloye, Fabien Lombardi, Jean-Luc Hefti
  • Publication number: 20140018912
    Abstract: A guide catheter (30) is described for introduction into a patient's vasculature, to provide a substantially continuous guide lumen (28) within the vasculature to the ascending aorta (34), through which one or more other functional catheters (44) may be introduced and removed during the procedure. The guide catheter includes an aligner (70) at its distal region for aligning the position and/or inclination of the distal region of the guide catheter with respect to the ascending aorta. The aligner includes an embolic protection filter (88). The guide catheter is made of material collapsible/distensible in cross section to adopt a small shape when no catheter is present inside, and to distend to a large shape to accommodate passage of functional catheter therethrough. The cross-section shape collapses/distends by folding/unfolding of material without elastic stretching of the material.
    Type: Application
    Filed: January 10, 2012
    Publication date: January 16, 2014
    Applicant: Symetis SA
    Inventors: Stephane Delaloye, Jean-Luc Hefti, Youssef Biadillah
  • Publication number: 20130274870
    Abstract: A delivery catheter (12) for a stent valve (10), the delivery catheter having a distal portion (14) insertable into an anatomy, the distal portion comprising an accommodation region (18) for accommodating a stent-valve for delivery into the anatomy, the delivery catheter further comprising at least one sheath (20; 22) that is translatable between a closed position for at least partly closing the accommodation region and an open position for at least partly opening the accommodation region.
    Type: Application
    Filed: September 26, 2011
    Publication date: October 17, 2013
    Applicant: SYMETIS SA
    Inventors: Fabien Lombardi, Jacques Essinger, Stephane Delaloye, Jean-Luc Hefti, Luc Mantanus, Youssef Biadillah