Patents by Inventor David Alon

David Alon 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: 20150173900
    Abstract: A method of using a device to improve the function of a heart valve is disclosed. In one preferred embodiment, the method includes positioning a prosthetic insert member between leaflets of mitral valve. The insert member has an elongated cross-sectional profile for conforming to gap between leaflets of a mitral valve. The device also includes an anchoring member for attachment to heart tissue for maintaining the insert member in the mitral valve. The insert member is used to plug the gap between the leaflets of the mitral valve and thereby reduce undesirable regurgitation while allowing the leaflets to function in a substantially normal manner. An anchoring member secures the prosthetic insert member to a heart wall. The anchoring member preferably includes a plurality of tissue penetrating hooks or prongs.
    Type: Application
    Filed: March 2, 2015
    Publication date: June 25, 2015
    Inventors: David L. Hauser, Jan O. Solem, David Alon
  • Publication number: 20150134050
    Abstract: The invention is a method for reducing regurgitation through a mitral valve. The device and method is directed to an anchor portion for engagement with the heart wall and an expandable valve portion configured for deployment between the mitral valve leaflets. The valve portion is expandable for preventing regurgitation through the mitral valve while allowing blood to circulate through the heart. The expandable valve portion may include apertures for reducing the stagnation of blood. In a preferred configuration, the device is preferably configured to be delivered in two-stages wherein an anchor portion is first delivered and the valve structure is then coupled to the anchor portion. In yet another embodiment, the present invention provides a method of forming an anchor portion wherein a disposable jig is used to mold the anchor portion into a three-dimensional shape for conforming to a heart chamber.
    Type: Application
    Filed: January 13, 2015
    Publication date: May 14, 2015
    Applicant: Edwards Lifesciences AG
    Inventors: Jan O. Solem, David Alon
  • Patent number: 8992605
    Abstract: In one embodiment, the present invention provides a prosthesis that can be implanted within a heart to at least partially block gaps that may be present between the two mitral valve leaflets. In one preferred embodiment, the prosthesis includes an anchoring ring that expands within the left atrium to anchor the prosthesis and a pocket member fixed to the anchoring ring. When the mitral valve is open, blood flows past the pocket member, maintaining the pocket member in a collapsed state. When the mitral valve closes, the backpressure of the blood pushes into the pocket member, expanding the pocket member to an inflated shape. The mitral valve leaflets contact the expanded pocket member, allowing the prosthesis to block at least a portion of the openings between the leaflets, thereby minimizing regurgitated blood flow into the left atrium.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: March 31, 2015
    Assignee: Edwards Lifesciences AG
    Inventors: Avraham Zakai, David Mishaly, Dan Rottenberg, David Alon
  • Patent number: 8968395
    Abstract: A prosthetic insert member for improving the function of a mitral valve is disclosed. The insert member is configured for insertion between leaflets of mitral valve. The insert member has an elongated cross-sectional profile for conforming to the opening in the mitral valve. The device also includes an anchoring member for attachment to heart tissue for maintaining the insert member in the mitral valve. In operation, the insert member fills the opening between the leaflets of the mitral valve and reduces regurgitation while preferably allowing the leaflets to function in a substantially normal manner. In one embodiment, the insert member is formed with a valve member disposed in a passageway for allowing blood to pass through the insert member in one direction.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: March 3, 2015
    Assignee: Edwards Lifesciences Corporation
    Inventors: David L. Hauser, Jan Otto Solem, David Alon
  • Patent number: 8932348
    Abstract: The invention is device and method for reducing regurgitation through a mitral valve. The device and method is directed to an anchor portion for engagement with the heart wall and an expandable valve portion configured for deployment between the mitral valve leaflets. The valve portion is expandable for preventing regurgitation through the mitral valve while allowing blood to circulate through the heart. The expandable valve portion may include apertures for reducing the stagnation of blood. In a preferred configuration, the device is configured to be delivered in two-stages wherein an anchor portion is first delivered and the valve structure is then coupled to the anchor portion. In yet another embodiment, the present invention provides a method of forming an anchor portion wherein a disposable jig is used to mold the anchor portion into a three-dimensional shape for conforming to a heart chamber.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: January 13, 2015
    Assignee: Edwards Lifesciences Corporation
    Inventors: Jan Otto Solem, David Alon
  • Publication number: 20140309730
    Abstract: A heart valve annulus repair device having a tissue engaging member and a plurality of anchors. The tissue engaging member includes a loop of wire. Each of the anchors has a pointy front end and a back end and a slot that runs in a front-to-back direction. The anchors are distributed about the loop of wire with the front ends of the plurality of anchors facing the heart valve annulus and with the loop of wire passing through the slots. The device further includes means for implanting the anchors into the heart valve annulus tissue so that the tissue engaging member becomes affixed to the heart valve annulus.
    Type: Application
    Filed: December 10, 2012
    Publication date: October 16, 2014
    Inventors: David ALON, Karl-Heinz KUCK
  • Publication number: 20140163670
    Abstract: A method for delivering a self-expanding prosthetic heart valve comprises positioning the prosthetic heart valve in an annulus of a native heart valve while mounted in a radially compressed state in a delivery cylinder, the delivery cylinder coupled to a distal end portion of the torque shaft, and rotating a torque shaft coupled to the delivery cylinder. Rotating the torque shaft retracts the delivery cylinder, thereby exposing the prosthetic heart valve, allowing the prosthetic heart valve to self-expand in the native valve annulus. In some embodiments, the torque shaft is rotated by a motor disposed in a handle at a proximal end of the delivery device.
    Type: Application
    Filed: February 17, 2014
    Publication date: June 12, 2014
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: David Alon, Netanel Benichou, Oded Meiri
  • Patent number: 8652202
    Abstract: Embodiments of the present disclosure provide a prosthetic heart valve and a heart valve delivery apparatus for delivery of the prosthetic heart valve to a native valve site via the human vasculature. The delivery apparatus is particularly suited for advancing a prosthetic valve through the aorta (i.e., in a retrograde approach) for replacing a diseased native aortic valve. In one embodiment, a self-expanding valve comprises an expandable stent that is shaped to maintain the valve in the aortic annulus against axial without anchors or retaining devices that engage the surrounding tissue. A delivery apparatus for delivering s self-expanding prosthetic valve can be configured to allow controlled and precise deployment of the valve from a valve sheath so as to minimize or prevent jumping of the valve from the valve sheath.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: February 18, 2014
    Assignee: Edwards Lifesciences Corporation
    Inventors: David Alon, Netanel Benichou, Oded Meiri
  • Publication number: 20130268069
    Abstract: In one embodiment, the present invention provides a prosthesis that can be implanted within a heart to at least partially block gaps that may be present between the two mitral valve leaflets. In one preferred embodiment, the prosthesis includes an anchoring ring that expands within the left atrium to anchor the prosthesis and a pocket member fixed to the anchoring ring. When the mitral valve is open, blood flows past the pocket member, maintaining the pocket member in a collapsed state. When the mitral valve closes, the backpressure of the blood pushes into the pocket member, expanding the pocket member to an inflated shape. The mitral valve leaflets contact the expanded pocket member, allowing the prosthesis to block at least a portion of the openings between the leaflets, thereby minimizing regurgitated blood flow into the left atrium.
    Type: Application
    Filed: June 5, 2013
    Publication date: October 10, 2013
    Inventors: Avraham Zakai, David Mishaly, Dan Rottenberg, David Alon
  • Patent number: 8460370
    Abstract: In one embodiment, the present invention provides a prosthesis that can be implanted within a heart to at least partially block gaps that may be present between the two mitral valve leaflets. In one preferred embodiment, the prosthesis includes an anchoring ring that expands within the left atrium to anchor the prosthesis and a pocket member fixed to the anchoring ring. The pocket member is positioned within the mitral valve, between the leaflets so that an open end of the pocket member is positioned within the left ventricle. When the mitral valve is open, blood flows past the pocket member, maintaining the pocket member in a collapsed state. When the mitral valve closes, the backpressure of the blood pushes into the pocket member, expanding the pocket member to an inflated shape. The mitral valve leaflets contact the expanded pocket member, allowing the prosthesis to block at least a portion of the openings between the leaflets, thereby minimizing regurgitated blood flow into the left atrium.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: June 11, 2013
    Assignee: Edwards Lifesciences AG
    Inventors: Avraham Zakay, Dan Rottenberg, David Michaly, David Alon
  • Publication number: 20120239142
    Abstract: Certain embodiments of the present disclosure provide a prosthetic valve (e.g., prosthetic heart valve) and a valve delivery apparatus for delivery of the prosthetic valve to a native valve site via the human vasculature. The delivery apparatus is particularly suited for advancing a prosthetic heart valve through the aorta (i.e., in a retrograde approach) for replacing a diseased native aortic valve. The delivery apparatus in particular embodiments is configured to deploy a prosthetic valve from a delivery sheath in a precise and controlled manner at the target location within the body.
    Type: Application
    Filed: February 24, 2012
    Publication date: September 20, 2012
    Inventors: Jun Liu, Luca Pesce, Michael Popp, David Alon, Mohammad Jafari, Sergio Delgado
  • Publication number: 20120191182
    Abstract: A prosthetic insert member for improving the function of a mitral valve is disclosed. The insert member is configured for insertion between leaflets of mitral valve. The insert member has an elongated cross-sectional profile for conforming to the opening in the mitral valve. The device also includes an anchoring member for attachment to heart tissue for maintaining the insert member in the mitral valve. In operation, the insert member fills the opening between the leaflets of the mitral valve and reduces regurgitation while preferably allowing the leaflets to function in a substantially normal manner. In one embodiment, the insert member is formed with a valve member disposed in a passageway for allowing blood to pass through the insert member in one direction.
    Type: Application
    Filed: April 4, 2012
    Publication date: July 26, 2012
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: David L. Hauser, Jan Otto Solem, David Alon
  • Publication number: 20100198347
    Abstract: In one embodiment, the present invention provides a prosthesis that can be implanted within a heart to at least partially block gaps that may be present between the two mitral valve leaflets. In one preferred embodiment, the prosthesis includes an anchoring ring that expands within the left atrium to anchor the prosthesis and a pocket member fixed to the anchoring ring. The pocket member is positioned within the mitral valve, between the leaflets so that an open end of the pocket member is positioned within the left ventricle. When the mitral valve is open, blood flows past the pocket member, maintaining the pocket member in a collapsed state. When the mitral valve closes, the backpressure of the blood pushes into the pocket member, expanding the pocket member to an inflated shape. The mitral valve leaflets contact the expanded pocket member, allowing the prosthesis to block at least a portion of the openings between the leaflets, thereby minimizing regurgitated blood flow into the left atrium.
    Type: Application
    Filed: April 15, 2010
    Publication date: August 5, 2010
    Applicant: EDWARDS LIFESCIENCES AG
    Inventors: Avraham Zakay, Dan Rottenberg, David Mishaly, David Alon
  • Patent number: 7704277
    Abstract: In one embodiment, the present invention provides a prosthesis that can be implanted within a heart to at least partially block gaps that may be present between the two mitral valve leaflets. In one preferred embodiment, the prosthesis includes an anchoring ring that expands within the left atrium to anchor the prosthesis and a pocket member fixed to the anchoring ring. The pocket member is positioned within the mitral valve, between the leaflets so that an open end of the pocket member is positioned within the left ventricle. When the mitral valve is open, blood flows past the pocket member, maintaining the pocket member in a collapsed state. When the mitral valve closes, the backpressure of the blood pushes into the pocket member, expanding the pocket member to an inflated shape. The mitral valve leaflets contact the expanded pocket member, allowing the prosthesis to block at least a portion of the openings between the leaflets, thereby minimizing regurgitated blood flow into the left atrium.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: April 27, 2010
    Assignee: Edwards Lifesciences AG
    Inventors: Avraham Zakay, Dan Rottenberg, David Mishaly, David Alon
  • Publication number: 20100049313
    Abstract: Embodiments of the present disclosure provide a prosthetic heart valve and a heart valve delivery apparatus for delivery of the prosthetic heart valve to a native valve site via the human vasculature. The delivery apparatus is particularly suited for advancing a prosthetic valve through the aorta (i. e., in a retrograde approach) for replacing a diseased native aortic valve. In one embodiment, a self-expanding valve comprises an expandable stent that is shaped to maintain the valve in the aortic annulus against axial without anchors or retaining devices that engage the surrounding tissue. A delivery apparatus for delivering s self-expanding prosthetic valve can be configured to allow controlled and precise deployment of the valve from a valve sheath so as to minimize or prevent jumping of the valve from the valve sheath.
    Type: Application
    Filed: April 23, 2009
    Publication date: February 25, 2010
    Inventors: David Alon, Netanel Benichou, Oded Meiri
  • Publication number: 20070282429
    Abstract: A device and methods for improving the function of a heart valve, such as an aortic valve, is disclosed. In one embodiment, the device includes an insert member configured for insertion between leaflets of an aortic valve. The insert member preferably includes three radial arms extending outwardly from a central portion. The device also includes an anchoring member which is coupled to the insert member and configured for maintaining the insert member within the heart valve. In operation, each of the arms fills gaps between heart valve leaflets, thereby minimizing or preventing regurgitation through the heart valve.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 6, 2007
    Inventors: David L. Hauser, Jan Otto Solem, David Alon
  • Publication number: 20070270943
    Abstract: The invention is device and method for reducing regurgitation through a mitral valve. The device and method is directed to an anchor portion for engagement with the heart wall and an expandable valve portion configured for deployment between the mitral valve leaflets. The valve portion is expandable for preventing regurgitation through the mitral valve while allowing blood to circulate through the heart. The expandable valve portion may include apertures for reducing the stagnation of blood. In a preferred configuration, the device is configured to be delivered in two-stages wherein an anchor portion is first delivered and the valve structure is then coupled to the anchor portion. In yet another embodiment, the present invention provides a method of forming an anchor portion wherein a disposable jig is used to mold the anchor portion into a three-dimensional shape for conforming to a heart chamber.
    Type: Application
    Filed: May 17, 2007
    Publication date: November 22, 2007
    Inventors: Jan Otto Solem, David Alon
  • Publication number: 20060058871
    Abstract: In one embodiment, the present invention provides a prosthesis that can be implanted within a heart to at least partially block gaps that may be present between the two mitral valve leaflets. In one preferred embodiment, the prosthesis includes an anchoring ring that expands within the left atrium to anchor the prosthesis and a pocket member fixed to the anchoring ring. The pocket member is positioned within the mitral valve, between the leaflets so that an open end of the pocket member is positioned within the left ventricle. When the mitral valve is open, blood flows past the pocket member, maintaining the pocket member in a collapsed state. When the mitral valve closes, the backpressure of the blood pushes into the pocket member, expanding the pocket member to an inflated shape. The mitral valve leaflets contact the expanded pocket member, allowing the prosthesis to block at least a portion of the openings between the leaflets, thereby minimizing regurgitated blood flow into the left atrium.
    Type: Application
    Filed: September 14, 2005
    Publication date: March 16, 2006
    Inventors: Avraham Zakay, Dan Rottenberg, David Mishaly, David Alon