Patents Assigned to Viacor, Inc.
  • Patent number: 7427291
    Abstract: This invention relates to a system used to fashion, size, and implant a tissue annuloplasty band. This system comprises (1) a device to cut tissue; (2) a device to fashion (i.e., roll, fold, bunch, etc.) the tissue into a band (i.e., the tissue annuloplasty band); and (3) a sizer that comprises an mounting ring which allows for determining and maintaining the proper size and shape of the tissue annuloplasty band while it is attached to the annulus of a heart valve. These components can be used alone, together as a system, or in any combination to fashion, size, and/or implant the tissue annuloplasty band.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: September 23, 2008
    Assignee: Viacor, Inc.
    Inventors: John R. Liddicoat, Brian Colyer Coppom, Richard B. Streeter
  • Patent number: 7186264
    Abstract: A method and apparatus for reducing mitral regurgitation. The apparatus is inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the apparatus being adapted to straighten the natural curvature of at least a portion of the coronary sinus in the vicinity of the posterior leaflet of the mitral valve, whereby to move the posterior annulus anteriorly and thereby improve leaflet coaptation and reduce mitral regurgitation.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: March 6, 2007
    Assignee: Viacor, Inc.
    Inventors: John R. Liddicoat, Daniel C. Taylor, Richard B. Streeter, Steven B. Woolfson, William E. Cohn, Todd F. Davenport
  • Patent number: 7179291
    Abstract: A method and apparatus for reducing mitral regurgitation. The apparatus is inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the apparatus being adapted to straighten the natural curvature of at least a portion of the coronary sinus in the vicinity of the posterior leaflet of the mitral valve, whereby to move the posterior annulus anteriorly and thereby improve leaflet coaptation and reduce mitral regurgitation.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: February 20, 2007
    Assignee: Viacor, Inc.
    Inventors: Johnathan M. Rourke, Daniel C. Taylor, Steven J. Blacker, Terrence G. Barnes
  • Patent number: 7125420
    Abstract: A method and apparatus for reducing mitral regurgitation. The apparatus is inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the apparatus being adapted to straighten the natural curvature of at least a portion of the coronary sinus in the vicinity of the posterior leaflet of the mitral valve, whereby to move the posterior annulus anteriorly and thereby improve leaflet coaptation and reduce mitral regurgitation.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: October 24, 2006
    Assignee: Viacor, Inc.
    Inventors: Jonathan Rourke, John R. Liddicoat, Daniel C. Taylor, William E. Cohn
  • Patent number: 7070618
    Abstract: A valve shield comprising a shaped sheet of material adapted to be affixed to the annulus of a valve and adapted to extend over at least a portion of at least one leaflet of the valve so as to assist or replace the closing function of that valve leaflet.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: July 4, 2006
    Assignee: Viacor, Inc.
    Inventor: Richard B. Streeter
  • Patent number: 6942694
    Abstract: This invention relates to a system used to fashion, size, and implant a tissue annuloplasty band. This system comprises (1) a device to cut tissue; (2) a device to fashion (i.e., roll, fold, bunch, etc.) the tissue into a band (i.e., the tissue annuloplasty band); and (3) a sizer that comprises an mounting ring which allows for determining and maintaining the proper size and shape of the tissue annuloplasty band while it is attached to the annulus of a heart valve. These components can be used alone, together as a system, or in any combination to fashion, size, and/or implant the tissue annuloplasty band.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: September 13, 2005
    Assignee: Viacor, Inc.
    Inventors: John R. Liddicoat, Brian Colyer Coppom, Richard B. Streeter
  • Patent number: 6913608
    Abstract: A novel system for performing a heart valve annuloplasty. The system involves the use of a plication band. In one embodiment, the annulus of the valve is reduced by constriction of the plication band itself. More particularly, each plication band enters the tissue at two or more points which are spaced from one other by a distance which is dictated by the geometry of the plication band. Subsequent constriction of the plication band causes these points to move toward each other, thereby constricting the tissue trapped between these points and thus reducing the overall circumference of the valve annulus. In a second embodiment, the annulus of the valve is reduced by linking multiple plication bands to one other, using a linkage construct, and then using a shortening of the length of the linkage construct between each plication band so as to gather the tissue between each plication band, whereby to reduce the overall circumference of the valve annulus.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: July 5, 2005
    Assignee: Viacor, Inc.
    Inventors: John R. Liddicoat, Gregory H. Lambrecht, Richard B. Streeter, Steven B. Woolfson
  • Patent number: 6896690
    Abstract: The present invention discloses devices and methods for performing intravascular procedures with out cardiac bypass. The devices include various embodiments of temporary filter devices, temporary valves, and prosthetic valves. The temporary filter devices have one or more cannulae which provide access for surgical tools for effecting repair of the cardiac valves. A cannula may have filters of various configurations encircling the distal region of the cannula, which prevent embolitic material from entering the coronary arteries and aorta. The temporary valve devices may also have one or more cannulae which guide the insertion of the valve into the aorta. The valve devices expand in the aorta to occupy the entire flow path of the vessel. In one embodiment, the temporary valve is a disc of flexible, porous, material that acts to filter blood passing therethrough. A set of valve leaflets extend peripherally from the disc.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: May 24, 2005
    Assignee: VIACOR, Inc.
    Inventors: Gregory H. Lambrecht, John Liddicoat, Robert Kevin Moore
  • Patent number: 6890330
    Abstract: Apparatus is disclosed for providing access to a functioning vascular system of a patient, the apparatus comprising: a main body having sidewalls defining an interior region and an exterior region, a bottom end and a top end; a base being formed at the bottom end of the main body, securing means being configured on the base so as to allow attachment and formation of a seal between the base and the functioning vascular system of the patient, and the base being configurable to provide a passageway from the interior region of the main body to the functioning vascular system of the patient; and a cover being formed at the top end of the main body, wherein the cover provides a barrier between the interior region and the exterior region at the top end of the main body.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: May 10, 2005
    Assignee: Viacor, Inc.
    Inventors: Richard B. Streeter, John R. Liddicoat, Todd F. Davenport
  • Patent number: 6890353
    Abstract: Apparatus for reducing mitral regurgitation, by applying a force to the wall of the coronary sinus so as to force the posterior leaflet anteriorly and thereby reduce mitral regurgitation.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: May 10, 2005
    Assignee: Viacor, Inc.
    Inventors: William E. Cohn, John R. Liddicoat, Richard B. Streeter, Daniel C. Taylor, Steven B. Woolfson
  • Patent number: 6846325
    Abstract: A prosthetic heart value assembly comprising a prosthetic heart valve and a fixation band. The fixation band comprises a tubular frame and a tube. The tubular frame comprises longitudinally-extending members having hooks on their distal ends and fixation means on proximal ends, and a stabilizing laterally-extending member. The tube is positioned inside the longitudinally-extending members, a distal end of the tube being everted over the hooks. A sewing cuff is formed in the tube. The prosthetic valve is secured to the fixation band by suturing a prosthetic valve sewing cuff to a fixation band sewing cuff. The prosthetic valve and fixation band are advanced to the valve's seat. The fixation band's hooks are passed through the wall of the everted tube and into surrounding tissue and the fixation band's fixation means are deployed.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: January 25, 2005
    Assignee: Viacor, Inc.
    Inventor: John R. Liddicoat
  • Patent number: 6790231
    Abstract: Apparatus for reducing mitral regurgitation, including a bendable elongated body adapted to be inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the elongated body being adjustable between a first configuration adapted to be delivered into the coronary sinus and a second configuration adapted to exert a force onto the posterior annulus. The body includes a flexible spine having a proximal end and a distal end, and a flexible wire mounted on the spine and having a distal end fixed to the spine proximate to the distal end of the spine, and having a proximal portion extending from the proximal end of the spine. Axial movement of the wire causes a change in the spine from the first configuration to the second configuration to exert the force on the posterior annulus and thereby reduce mitral regurgitation.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: September 14, 2004
    Assignee: Viacor, Inc.
    Inventors: John R. Liddicoat, Steven B. Woolfson, Richard B. Streeter, William E. Cohn
  • Patent number: 6769434
    Abstract: A method for deploying an aortic valve prosthesis includes the steps of: making a first opening leading to the left atrium; passing the valve prosthesis through the opening and into a cardiac chamber of the left side of the heart using a first manipulation instrument; making a second opening in the arterial system and advancing one end of a second manipulation instrument through the arterial opening and into the cardiac chamber; securing the second manipulation instrument to the valve prosthesis; and using the second manipulation instrument to retract at least a portion of the valve prosthesis out of the cardiac chamber.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: August 3, 2004
    Assignee: Viacor, Inc.
    Inventors: John R. Liddicoat, Gregory H. Lambrecht, Todd F. Davenport, William E. Cohn, Steven B. Woolfson, Daniel C. Taylor
  • Patent number: 6702826
    Abstract: A novel system for performing a heart valve annuloplasty. The system involves the use of a plication band. In one embodiment, the annulus of the valve is reduced by constriction of the plication band itself. More particularly, each plication band enters the tissue at two or more points which are spaced from one other by a distance which is dictated by the geometry of the plication band. Subsequent constriction of the plication band causes these points to move toward each other, thereby constricting the tissue trapped between these points and thus reducing the overall circumference of the valve annulus. In a second embodiment, the annulus of the valve is reduced by linking multiple plication bands to one other, using a linkage construct, and then using a shortening of the length of the linkage construct between each plication band so as to gather the tissue between each plication band, whereby to reduce the overall circumference of the valve annulus.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: March 9, 2004
    Assignee: Viacor, Inc.
    Inventors: John R. Liddicoat, Gregory H. Lambrecht, Richard B. Streeter, Steven B. Woolfson
  • Patent number: 6692513
    Abstract: Apparatus for filtering and entrapping debris in the vascular system of a patient, the apparatus including a filter to allow blood to flow therethrough and to restrict passage of debris, wherein the filter captures debris carried in a first direction of blood flow. The apparatus further includes an entrapment mechanism which allows passage of debris and blood therethrough, in the first direction of blood flow and prevents debris passage in a second direction. The entrapment mechanism and filter allow blood and debris therethrough in the first direction of blood flow. The entrapment mechanism prevents debris flow in the second direction of blood flow A method for filtering and entrapping debris in the vascular system includes inserting the apparatus into the vascular system, allowing blood and debris carried therein to flow through the entrapment mechanism, and removing the apparatus and accumulated debris from the vascular system.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: February 17, 2004
    Assignee: Viacor, Inc.
    Inventors: Richard B. Streeter, Gregory H. Lambrecht, John R. Liddicoat, Robert Kevin Moore, Todd F. Davenport
  • Patent number: 6656221
    Abstract: A method and apparatus for reducing mitral regurgitation. The apparatus is inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the apparatus being adapted to straighten the natural curvature of at least a portion of the coronary sinus in the vicinity of the posterior leaflet of the mitral valve, whereby to move the posterior annulus anteriorly and thereby improve leaflet coaptation and reduce mitral regurgitation.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: December 2, 2003
    Assignee: Viacor, Inc.
    Inventors: Daniel C. Taylor, John R. Liddicoat, Richard B. Streeter, Steven B. Woolfson, William E. Cohn, Todd F. Davenport, Thomas F. Kordis