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).

  • Patent number: 9592120
    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: August 12, 2014
    Date of Patent: March 14, 2017
    Assignee: Medtronic Ventor Technologies, Ltd.
    Inventors: Yossi Tuval, Igor Kovalsky, Ido Kilemnik, Eli Benhamou
  • Publication number: 20170000605
    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: September 15, 2016
    Publication date: January 5, 2017
    Inventor: Igor Kovalsky
  • Publication number: 20160361167
    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 steal-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 steel-mounted valve from a storage container into a delivery catheter for the performance of a transcatheter valve implantation procedure.
    Type: Application
    Filed: June 15, 2016
    Publication date: December 15, 2016
    Inventors: Yosi Tuval, Yuri Sudin, Ido Kilemnik, Igor Kovalsky, Raphael Benary, Guy Ezekiel
  • Publication number: 20160324635
    Abstract: Apparatus and methods are described herein for use in the transfemoral delivery and deployment of a prosthetic mitral valve. In some embodiments, a method includes inverting an outer frame of a prosthetic mitral valve when in a biased expanded configuration. After inverting the outer frame, the prosthetic mitral valve is inserted into a lumen of a delivery sheath such that the mitral valve is moved to a collapsed configuration. The delivery sheath is inserted into a femoral vein and moved through the femoral vein and a septum of a heart until a distal end of the delivery sheath is disposed in the left atrium of the heart. The prosthetic mitral valve is moved distally out of the delivery sheath such that the inverted outer frame reverts and the prosthetic mitral valve assumes its biased expanded configuration. The prosthetic mitral valve is then positioned within a mitral annulus of the heart.
    Type: Application
    Filed: July 22, 2016
    Publication date: November 10, 2016
    Applicant: Tendyne Holdings, Inc.
    Inventors: Robert M. VIDLUND, Mark CHRISTIANSON, Igor KOVALSKY
  • Patent number: 9468525
    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: Grant
    Filed: August 13, 2012
    Date of Patent: October 18, 2016
    Assignee: Medtronic, Inc.
    Inventor: Igor Kovalsky
  • Patent number: 9393112
    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 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: February 27, 2014
    Date of Patent: July 19, 2016
    Assignee: Medtronic Ventor Technologies Ltd.
    Inventors: Yosi Tuval, Yuri Sudin, Ido Kilemnik, Igor Kovalsky, Rafhael Benary, Guy Ezekiel
  • Publication number: 20160089236
    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: December 8, 2015
    Publication date: March 31, 2016
    Inventors: Igor Kovalsky, Jason Quill, Daniel Glozman, Illia Hariton, Yossi Tuval, Nadav Yellin
  • Patent number: 9232995
    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: Grant
    Filed: January 8, 2013
    Date of Patent: January 12, 2016
    Assignee: Medtronic, Inc.
    Inventors: Igor Kovalsky, Jason Quill, Daniel Glozman, Ilia Hariton, Yossi Tuval, Nadav Yellin
  • Patent number: 9192466
    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: Grant
    Filed: October 20, 2011
    Date of Patent: November 24, 2015
    Assignee: Medtronic, Inc.
    Inventors: Igor Kovalsky, Cynthia Clague
  • Publication number: 20150289977
    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: June 24, 2015
    Publication date: October 15, 2015
    Inventors: Igor Kovalsky, Ilia Hariton, Yossi Tuval, Nadav Yellin
  • Patent number: 9072602
    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: Grant
    Filed: November 14, 2012
    Date of Patent: July 7, 2015
    Assignee: Medtronic, Inc.
    Inventors: Daniel Glozman, Igor Kovalsky, Jason Quill
  • Patent number: 9072603
    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: Grant
    Filed: October 28, 2010
    Date of Patent: July 7, 2015
    Assignee: Medtronic Ventor Technologies, Ltd.
    Inventors: Yosi Tuval, Ilia Hariton, Igor Kovalsky, Eli Ben-Hamou
  • Patent number: 9066801
    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: Grant
    Filed: January 8, 2013
    Date of Patent: June 30, 2015
    Assignee: Medtronic, Inc.
    Inventors: Igor Kovalsky, Ilia Hariton, Yossi Tuval, Nadav Yellin
  • Patent number: 9060855
    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: Grant
    Filed: March 16, 2012
    Date of Patent: June 23, 2015
    Assignee: Ventor Technologies Ltd.
    Inventors: Yosi Tuval, Igor Kovalsky
  • Publication number: 20150119982
    Abstract: Mitral valve prosthesis are disclosed that include a frame or support structure having an inflow portion, a valve-retaining tubular 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. The inflow portion is formed from a plurality of struts that outwardly extend from the first end of the valve-retaining tubular portion with adjacent struts of the plurality of struts being joined, wherein each strut of the plurality of struts has a substantially s-shaped profile and at least one twisted area.
    Type: Application
    Filed: October 21, 2014
    Publication date: April 30, 2015
    Inventors: Jason Quill, Igor Kovalsky
  • Patent number: 8986375
    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: Grant
    Filed: March 12, 2013
    Date of Patent: March 24, 2015
    Assignee: Medtronic, Inc.
    Inventors: Kshitija Garde, Philip Haarstad, Igor Kovalsky, Stephen Nash, Gianfranco Pellegrini, Finn Rinne, Matthew Rust, Jeffrey Sandstrom, Padraig Savage, William Steinberg
  • Patent number: 8926690
    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: Grant
    Filed: March 12, 2013
    Date of Patent: January 6, 2015
    Assignee: Medtronic, Inc.
    Inventor: Igor Kovalsky
  • Publication number: 20140371845
    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: Application
    Filed: August 12, 2014
    Publication date: December 18, 2014
    Inventors: Yossi Tuval, Igor Kovalsky, Ido Kilemnik, Eli Benhamou
  • Publication number: 20140331475
    Abstract: Devices, systems, and methods for crimping a medical device are disclosed. More specifically, the present disclosure relates to devices, systems, and methods for reducing the diameter of a collapsible heart valve prosthesis to be loaded onto a delivery device. The devices, systems, and methods using at least one funnel to crimp the heart valve prosthesis and load it onto the delivery system.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 13, 2014
    Applicant: Medtronic Vascular Galway
    Inventors: Niall Duffy, Marian Creaven, Philip Haarstad, Frank Harewood, Igor Kovalsky, Jason Quill, Daniel Gelfman, Ana Menk, Darren Janzig, Shyam Gokaldas, Kenneth Warnock
  • Patent number: 8845718
    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: November 16, 2012
    Date of Patent: September 30, 2014
    Assignee: Medtronic Ventor Technologies, Ltd.
    Inventors: Yossi Tuval, Igor Kovalsky, Ido Kilemnik, Eli Benhamou