Patents by Inventor Igor Kovalsky

Igor Kovalsky 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: 20140277419
    Abstract: A transcatheter valve prosthesis includes an expandable tubular stent, a prosthetic valve within the stent, and an anti-paravalvular leakage component coupled to and encircling the stent which includes a plurality of self-expanding struts and an annular sealing membrane. Each strut has a first end coupled to a distal end of the stent and a second end not coupled to the stent. Each anti-paravalvular leakage component is moveable between a compressed configuration and a deployed configuration. In the compressed configuration, each strut extends distally away from the distal end of the stent. In the deployed configuration, each strut extends proximally away from the distal end of the stent. In an embodiment hereof, the deployed strut has a C-shape and is twisted such that the C-shape lies in a plane substantially along or tangential with the outer surface of the stent. In another embodiment hereof, the deployed strut is rolled-up and extends radially away from the outer surface of the stent.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: MEDTRONIC, INC.
    Inventors: Kshitija Garde, Philip Haarstad, Igor Kovalsky, Stephen Nash, Michael Krivoruchko, Gianfranco Pellegrini, Finn Rinne, Matthew Rust, Jeffrey Sandstrom, Padraig Savage, Adam Shipley, William Steinberg
  • Publication number: 20140230515
    Abstract: A loading tool for withdrawing, crimping, and loading a stent-mounted valve into a delivery catheter, and for pushing the stent-mounted valve from the delivery catheter into a native heart valve orifice. The loading tool comprises at least one connector adapted for being removably connected to the stent of the stent-mounted valve. A crimping tool having a generally converging shape is adapted for use with the loading tool. Following connection of the loading tool to the stent-mounted valve, the loading tool operates to allow the stent-mounted valve to be drawn through the crimping tool, and loaded, in a crimped state, into a delivery catheter. Also disclosed is a kit of the of the various components for effecting the delivery of the stent-mounted valve and a method for withdrawing, crimping, and loading a stent-mounted valve from a storage container into a delivery catheter for the performance of a transcatheter valve implantation procedure.
    Type: Application
    Filed: February 27, 2014
    Publication date: August 21, 2014
    Applicant: Medtronic Ventor Technologies Ltd.
    Inventors: Yosi TUVAL, Yuri Sudin, Ido Kilemnik, Igor Kovalsky, Rafhael Benary, Guy Ezekiel
  • Publication number: 20140222142
    Abstract: Heart valve prosthesis are disclosed that include a frame or support structure having an inflow portion, a valve-retaining tubular or central portion and a pair of support arms. The inflow portion radially extends from a first end of the valve-retaining tubular portion and the pair of support arms are circumferentially spaced apart and radially extend from an opposing second end of the valve-retaining tubular portion.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 7, 2014
    Applicant: Medtronic, Inc.
    Inventors: Igor Kovalsky, Cathleen Bergin, Marian Creaven, Joshua Dwork, Kshitija Garde, Daniel Glozman, Ilia Hariton, Pham Lo, Jason Quill, Jeffrey Sandstrom, Padraig Savage, Michael Schendel, Elizabeth Schotzko, Yossi Tuval, Nadav Yellin
  • Publication number: 20140194982
    Abstract: In some embodiments, a valve prosthesis includes an inlet portion that is substantially s-shaped and configured to engage the floor of the outflow tract of the native heart atrium. In some embodiments, a valve prosthesis includes a chordae guiding element configured to reduce bending of the chordae to reduce stress on the chordae during the cardiac cycle. In some embodiments, a valve prosthesis includes a central portion having an hourglass shape configured to pinch a native annulus in order to provide axial fixation of the valve prosthesis within a valve site. In some embodiments, a valve prosthesis includes a frame having an outflow end that is flared to provide a gap between an outflow end of the frame and an outflow end of prosthetic leaflets when the prosthetic leaflets are fully opened.
    Type: Application
    Filed: January 8, 2013
    Publication date: July 10, 2014
    Applicant: MEDTRONIC, INC.
    Inventors: Igor Kovalsky, Jason Quill, Daniel Glozman, Ilia Hariton, Yossi Tuval, Nadav Yellin
  • Publication number: 20140194983
    Abstract: Heart valve prostheses are provided for replacing a cardiac valve. The heart valve prosthesis includes a self-expanding frame including a first portion and a second portion. In the collapsed configuration, the first portion is positioned adjacent to the second portion. In the expanded configuration, the first portion moves to be positioned within an interior area of the second portion.
    Type: Application
    Filed: January 8, 2013
    Publication date: July 10, 2014
    Applicant: MEDTRONIC, INC.
    Inventors: Igor Kovalsky, Ilia Hariton, Yossi Tuval, Nadav Yellin
  • Patent number: 8747458
    Abstract: A loading tool for withdrawing, crimping, and loading a stent-mounted valve into a delivery catheter, and for pushing the stent-mounted valve from the delivery catheter into a native heart valve orifice. The loading tool comprises at least one connector adapted for being removably connected to the stent of the stent-mounted valve. A crimping tool having a generally converging shape is adapted for use with the loading tool. Following connection of the loading tool to the stent-mounted valve, the loading tool operates to allow the stent-mounted valve to be drawn through the crimping tool, and loaded, in a crimped state, into a delivery catheter. Also disclosed is a kit of the of the various components for effecting the delivery of the stent-mounted valve and a method for withdrawing, crimping, and loading a stent-mounted valve from a storage container into a delivery catheter for the performance of a transcatheter valve implantation procedure.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: June 10, 2014
    Assignee: Medtronic Ventor Technologies Ltd.
    Inventors: Yosi Tuval, Yuri Sudin, Ido Kilemnik, Igor Kovalsky, Rafhael Benary, Guy Ezekiel
  • Publication number: 20140135908
    Abstract: A transcatheter valve prosthesis includes a self-expanding tubular stent component and a prosthetic valve disposed within and secured to the stent component. The tubular stent component has a proximal portion, a distal portion, and an intermediate portion between the proximal and distal portions. In a compressed delivery configuration, the tubular stent component has a generally circular cross-section along its length. In an expanded deployed configuration, the proximal and distal portions have a generally circular cross-section while the intermediate portion of the stent component has a generally triangular cross-section with three vertexes that are configured to project into three commissural points of a native valve when the valve prosthesis is implanted in situ.
    Type: Application
    Filed: November 14, 2012
    Publication date: May 15, 2014
    Applicant: MEDTRONIC, INC.
    Inventors: Daniel Glozman, Igor Kovalsky, Jason Quill
  • Publication number: 20140128726
    Abstract: Alignment of imaging modalities is disclosed. Orientation of an ultrasound imaging probe can be determined. A fluoroscopic imaging device can be aligned with respect to the orientation of the ultrasound imaging probe and a medical device can be implanted based on images obtained from the ultrasound imaging probe and the fluoroscopic imaging device.
    Type: Application
    Filed: November 5, 2012
    Publication date: May 8, 2014
    Applicant: MEDTRONIC, INC.
    Inventors: Jason Quill, Noah Barka, Jason Bourgoin, Igor Kovalsky, Paul Rothstein
  • Publication number: 20140046433
    Abstract: A heart valve prosthesis configured for deployment within a native heart valve. The heart valve prosthesis includes a tubular stent and a prosthetic valve component disposed within and secured to the stent. In addition, at least two positioning elements are coupled to a distal end of the stent to position and anchor the prosthesis within the native heart valve. Each positioning element transforms from a compressed configuration in which the positioning elements distally extend from the distal end of the stent to a deployed configuration in which the positioning elements proximally extend from the distal end of the stent. Each positioning element includes at least one U-shaped or V-shaped support arm that bends radially outward and then towards an outer surface of the stent such that it translates more than ninety degrees from the compressed configuration. Each positioning element may include an outer support arm and an inner support arm.
    Type: Application
    Filed: August 13, 2012
    Publication date: February 13, 2014
    Applicant: Medtronic, Inc.
    Inventor: Igor Kovalsky
  • Publication number: 20140046426
    Abstract: A heart valve prosthesis configured for deployment within a native heart valve. The heart valve prosthesis includes a tubular stent and a prosthetic valve component disposed within and secured to the stent. In addition, one or more elements are coupled to a distal end of the stent to position, anchor, and/or seal the prosthesis within the native heart valve. Each element transforms from a compressed configuration in which the elements distally extend from the distal end of the stent to a deployed configuration in which the elements proximally extend from the distal end of the stent. Each element includes at least one U-shaped or V-shaped support arm that bends radially outward and then towards an outer surface of the stent such that it translates more than ninety degrees from the compressed configuration. Each element may include an outer support arm and an inner support arm.
    Type: Application
    Filed: March 12, 2013
    Publication date: February 13, 2014
    Applicant: MEDTRONIC, INC.
    Inventor: Igor Kovalsky
  • Publication number: 20130073030
    Abstract: In some embodiments, an apparatus includes a valve prosthesis for attachment to a native valve complex of a subject. The prosthesis is configured to assume a compressed delivery state and an uncompressed implantation state. The prosthesis includes a support frame, which is shaped so as to define an upstream inlet having upstream-most portions that are tapered in an upstream direction toward a central longitudinal axis of the prosthesis when the prosthesis assumes the compressed delivery state, and a flexible prosthetic heart valve component, coupled to the support frame. Other embodiments are also described.
    Type: Application
    Filed: March 16, 2012
    Publication date: March 21, 2013
    Inventors: Yosi TUVAL, Igor Kovalsky
  • Patent number: 8382653
    Abstract: The present invention provides a system for improving diastolic function of the heart comprising elastic elements and attachment elements, wherein said elastic elements and said attachment elements are configured such that they are capable of being interconnected to form a chain formed of an alternating series of said elastic elements and said attachment elements, and wherein said attachment elements are adapted to be anchored in the wall of the heart and with option for drug delivery to the wall of the heart. The invention further provides devices, methods and kits, for mounting the ventricular function assisting device of the invention.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: February 26, 2013
    Assignee: Corassist Cardiovascular Ltd.
    Inventors: Shay Dubi, Igor Kovalsky, Yair Feld, Amir Loshakove, Boaz Nishri, Amit Tubishevitz
  • Patent number: 8313525
    Abstract: A prosthesis for implantation at a native semilunar valve includes a prosthetic distal valve, which includes a pliant material configured to collapse inwardly towards a longitudinal axis of the prosthesis during diastole, and to open outwardly during systole, and a distal fixation member configured to be positioned in a downstream artery of the subject. The apparatus also includes a proximal fixation member coupled to the distal fixation member, and configured to be positioned at least partially on a ventricular side of the native semilunar valve. The proximal fixation member is shaped so as to define a lattice that is shaped so as to define an intermediary portion that is coupled to the pliant material of the valve and diverges outwardly from the longitudinal axis, and a distal portion that is distal to the intermediary portion and diverges outwardly from the intermediary portion of the lattice. Other embodiments are also described.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: November 20, 2012
    Assignee: Medtronic Ventor Technologies, Ltd.
    Inventors: Yosi Tuval, Igor Kovalsky, Ido Kilemnik, Eliyahu Ben-Hamou
  • Publication number: 20120101572
    Abstract: A heart valve prosthesis configured for placement at a mitral valve in the heart is disclosed that includes a stent-like support structure for supporting a prosthetic mitral valve. The support structure is configured to have a low ventricular profile with only a short length thereof protruding into the left ventricle when deployed in vivo. The support structure includes an upstream section that is outwardly expandable to sit against the atrial wall so as to at least partially anchor the prosthesis therein and a downstream section to which the prosthetic mitral valve is coupled that extends between the left atria and ventricle through the native mitral valve. The low-ventricular profile of the prosthesis is achieved by shaping the support structure such that the downstream section extends within and overlaps with the upstream section at given regions around the circumference of the support structure in an expanded configuration.
    Type: Application
    Filed: October 20, 2011
    Publication date: April 26, 2012
    Applicant: Medtronic, Inc.
    Inventors: Igor Kovalsky, Cynthia Clague
  • Patent number: 8137398
    Abstract: Apparatus is provided that includes a valve prosthesis for attachment to a native valve complex of a subject. The prosthesis is configured to assume a compressed delivery state and an uncompressed implantation state. The prosthesis includes a support frame, which is shaped so as to define an upstream inlet having upstream-most portions that are tapered in an upstream direction toward a central longitudinal axis of the prosthesis when the prosthesis assumes the compressed delivery state. The prosthesis further includes a flexible prosthetic heart valve component, coupled to the support frame. Other embodiments are also described.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: March 20, 2012
    Assignee: Medtronic Ventor Technologies Ltd
    Inventors: Yosi Tuval, Igor Kovalsky
  • Publication number: 20120053682
    Abstract: The present invention is directed to prostheses including a support structure having a proximal end and a distal end, and a motion limiting member attached to the distal end of the support structure, wherein the motion limiting member is configured to restrict radial expansion of the distal end of the support structure. Methods for delivering the prosthesis are also provided.
    Type: Application
    Filed: August 24, 2011
    Publication date: March 1, 2012
    Applicant: Medtronic Vascular Galway Limited
    Inventors: Igor Kovalsky, Yossi Tuval
  • Publication number: 20110208297
    Abstract: Apparatus and methods are provided including a mitral valve prosthesis. The prosthesis includes an inner support structure having downstream and upstream sections, the upstream section having a cross-sectional area greater than the downstream section. The inner support structure is configured to be positioned on an atrial side of the native valve complex, and to prevent the prosthesis from being dislodged into the left ventricle. A prosthetic valve having prosthetic valve leaflets is coupled to the inner support structure. An outer support structure has engagement arms, downstream ends of the engagement arms being coupled to the inner support structure. The prosthesis is configured such that, upon implantation thereof: downstream ends of the native valve leaflets, downstream ends of the engagement arms, and downstream ends of the prosthetic leaflets, are disposed at a longitudinal distance from one another of less than 3 mm. Other embodiments are also described.
    Type: Application
    Filed: October 28, 2010
    Publication date: August 25, 2011
    Applicant: Medtronic Ventor Technologies Ltd.
    Inventors: Yosi Tuval, Ilia Hariton, Igor Kovalsky, Eli Ben-Hamou
  • Publication number: 20110208298
    Abstract: Apparatus and methods are provided, including a mitral valve prosthesis for implantation at a native mitral valve complex of a subject. The prosthesis includes an inner support structure having a downstream section, and an upstream section, the upstream section having a cross-sectional area greater than the downstream section, the inner support structure being configured to be positioned at least partially on an atrial side of the native valve complex, and to apply an axial force directed toward a left ventricle. The prosthesis further includes an outer support structure having two or more engagement arms, the engagement arms being coupled to the inner support structure. The prosthesis is configured, upon implantation thereof, to clamp portions of leaflets of the native valve between the inner support structure and the engagement arms. Other embodiments are also described.
    Type: Application
    Filed: October 28, 2010
    Publication date: August 25, 2011
    Applicant: Medtronic Ventor Technologies Ltd
    Inventors: Yosi Tuval, Ilia Hariton, Igor Kovalsky, Eli Ben-Hamou
  • Publication number: 20100268332
    Abstract: A prosthetic heart valve capable of being delivered via a transfemoral route as described.
    Type: Application
    Filed: September 9, 2009
    Publication date: October 21, 2010
    Inventors: Yossi Tuval, Igor Kovalsky, Eli Ben Hamou
  • Publication number: 20100094411
    Abstract: Apparatus is provided that includes a valve prosthesis for attachment to a native valve complex of a subject. The prosthesis is configured to assume a compressed delivery state and an uncompressed implantation state. The prosthesis includes a support frame, which is shaped so as to define an upstream inlet having upstream-most portions that are tapered in an upstream direction toward a central longitudinal axis of the prosthesis when the prosthesis assumes the compressed delivery state. The prosthesis further includes a flexible prosthetic heart valve component, coupled to the support frame. Other embodiments are also described.
    Type: Application
    Filed: October 13, 2008
    Publication date: April 15, 2010
    Applicant: Vector Technologies, Ltd.
    Inventors: Yosi Tuval, Igor Kovalsky