Patents by Inventor Kent D. Dell
Kent D. Dell 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).
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Publication number: 20080167714Abstract: The methods, devices, and systems are provided for performing endovascular repair of atrioventricular and other cardiac valves in the heart. Regurgitation of an atrioventricular valve, particularly a mitral valve, can be repaired by modifying a tissue structure selected from the valve leaflets, the valve annulus, the valve chordae, and the papillary muscles. These structures may be modified by suturing, stapling, snaring, or shortening, using interventional tools which are introduced to a heart chamber. Preferably, the tissue structures will be temporarily modified prior to permanent modification. For example, opposed valve leaflets may be temporarily grasped and held into position prior to permanent attachment.Type: ApplicationFiled: March 24, 2008Publication date: July 10, 2008Applicant: Evalve, Inc.Inventors: Frederick G. St. Goar, James I-Lin Fann, Mark E. Deem, Hanson S. Gifford, Martin S. Dieck, Brian B. Martin, Sylvia Wen-Chin Fan, Eric A. Goldfarb, Kent D. Dell, Ferolyn T. Powell
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Patent number: 7226467Abstract: Devices, systems, methods and kits are provided for delivering interventional devices to a target location with a body. Such interventional devices particularly include fixation devices or any devices which approximate tissue, such as valve leaflets. The delivery devices and systems direct the interventional device to the target location through a minimally invasive approach, such as through the patient's vasculature, and provide for manipulation of the interventional device at the target location, such as to approximate tissue. Optionally, the delivery devices and systems may provide for decoupling of the interventional device, allowing the interventional device to be left behind as an implant.Type: GrantFiled: May 19, 2003Date of Patent: June 5, 2007Assignee: Evalve, Inc.Inventors: Sylvester Lucatero, Sylvia Wen Chin Fan, Eric A. Goldfarb, Kent D. Dell, Sandra Saenz, Larry B. Rogers
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Publication number: 20040225300Abstract: The present invention provides methods and devices for grasping, and optional repositioning and fixation of the valve leaflets to treat cardiac valve regurgitation, particularly mitral valve regurgitation. Such grasping will typically be atraumatic providing a number of benefits. For example, atraumatic grasping may allow repositioning of the devices relative to the leaflets and repositioning of the leaflets themselves without damage to the leaflets. However, in some cases it may be necessary or desired to include grasping which pierces or otherwise permanently affects the leaflets. In some of these cases, the grasping step includes fixation.Type: ApplicationFiled: March 17, 2004Publication date: November 11, 2004Applicant: Evalve, Inc.Inventors: Eric A. Goldfarb, Kent D. Dell, Sylvia Wen-Chin Fan, Brian B. Martin, Ferolyn T. Powell, Alfred H. Raschdorf, Troy L. Thornton
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Patent number: 6800085Abstract: An intravascular catheter system for the treatment of occluded blood vessels that includes tissue displacement or hinged expansion members that are movable from a closed to an open position. An actuating assembly may be provided for moving the tissue expansion members between an open and closed position to exert a substantially lateral distal end force upon the region surrounding an occluded blood vessel. The tissue expansion members may stretch apart, tear or otherwise disrupt a vascular occlusion sufficiently to create a pathway that may support the passage or placement of a guidewire or an interventional vascular device across the occlusion or obstruction. Methods of crossing or displacing a vascular occlusion are further provided that include the positioning of a vascular catheter having at least one hinged spreading member positioned at the distal region of the catheter that is responsive to directed force along the longitudinal axis of the catheter.Type: GrantFiled: April 13, 2001Date of Patent: October 5, 2004Assignee: LuMend, Inc.Inventors: Matthew R. Selmon, Charles F. Milo, Robert L. Wynne, Suresh S. Pai, Kent D. Dell, Charles Gresl, Gerald Hansen, E. Richard Hill, III
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Patent number: 6752813Abstract: The present invention provides methods and devices for grasping, and optional repositioning and fixation of the valve leaflets to treat cardiac valve regurgitation, particularly mitral valve regurgitation. Such grasping will typically be atraumatic providing a number of benefits. For example, atraumatic grasping may allow repositioning of the devices relative to the leaflets and repositioning of the leaflets themselves without damage to the leaflets. However, in some cases it may be necessary or desired to include grasping which pierces or otherwise permanently affects the leaflets. In some of these cases, the grasping step includes fixation.Type: GrantFiled: June 27, 2001Date of Patent: June 22, 2004Assignee: Evalve, Inc.Inventors: Eric A. Goldfarb, Kent D. Dell, Sylvia Wen-Chin Fan, Brian B. Martin, Ferolyn T. Powell, Alfred H. Raschdorf, Troy L. Thornton
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Patent number: 6746462Abstract: An intravascular catheter system for the treatment of occluded blood vessels that includes tissue displacement or hinged expansion members that are movable from a closed to an open position. An actuating assembly may be provided for moving the tissue expansion members between an open and closed position to exert a substantially lateral distal end force upon the region surrounding an occluded blood vessel. The tissue expansion members may stretch apart, tear or otherwise disrupt a vascular occlusion sufficiently to create a pathway that may support the passage or placement of a guidewire or an interventional vascular device across the occlusion or obstruction. Methods of crossing or displacing a vascular occlusion are further provided that include the positioning of a vascular catheter having at least one hinged spreading member positioned at the distal region of the catheter that is responsive to directed force along the longitudinal axis of the catheter.Type: GrantFiled: March 28, 2000Date of Patent: June 8, 2004Assignee: LuMend, Inc.Inventors: Matthew R. Selmon, Charles F. Milo, Robert L. Wynne, Suresh S. Pai, Kent D. Dell, Charles Gresl
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Publication number: 20040087975Abstract: Devices, systems, methods and kits are provided for delivering interventional devices to a target location with a body. Such interventional devices particularly include fixation devices or any devices which approximate tissue, such as valve leaflets. The delivery devices and systems direct the interventional device to the target location through a minimally invasive approach, such as through the patient's vasculature, and provide for manipulation of the interventional device at the target location, such as to approximate tissue. Optionally, the delivery devices and systems may provide for decoupling of the interventional device, allowing the interventional device to be left behind as an implant.Type: ApplicationFiled: May 19, 2003Publication date: May 6, 2004Applicant: EVALVE, INC.Inventors: Sylvester Lucatero, Sylvia Wen Chin Fan, Eric A. Goldfarb, Kent D. Dell, Sandra Saenz, Larry B. Rogers
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Publication number: 20040077999Abstract: An intravascular catheter system for the treatment of occluded blood vessels that includes tissue displacement or hinged expansion members that are movable from a closed to an open position. An actuating assembly may be provided for moving the tissue expansion members between an open and closed position to exert a substantially lateral distal end force upon the region surrounding an occluded blood vessel. The tissue expansion members may stretch apart, tear or otherwise disrupt a vascular occlusion sufficiently to create a pathway that may support the passage or placement of a guidewire or an interventional vascular device across the occlusion or obstruction. Methods of crossing or displacing a vascular occlusion are further provided that include the positioning of a vascular catheter having at least one hinged spreading member positioned at the distal region of the catheter that is responsive to directed force along the longitudinal axis of the catheter.Type: ApplicationFiled: August 25, 2003Publication date: April 22, 2004Inventors: Matthew R. Selmon, Charles F. Milo, Robert L. Wynne, Suresh S. Pai, Kent D. Dell, Charles Gresl, Gerald Hansen, E. Richard Hill
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Publication number: 20040049207Abstract: The invention provides devices, systems and methods for tissue approximation and repair at treatment sites. The devices, systems and methods of the invention will find use in a variety of therapeutic procedures, including endovascular, minimally-invasive, and open surgical procedures, and can be used in various anatomical regions, including the abdomen, thorax, cardiovascular system, heart, intestinal tract, stomach, urinary tract, bladder, lung, and other organs, vessels, and tissues. The invention is particularly useful in those procedures requiring minimally-invasive or endovascular access to remote tissue locations, where the instruments utilized must negotiate long, narrow, and tortuous pathways to the treatment site. In addition, many of the devices and systems of the invention are adapted to be reversible and removable from the patient at any point without interference with or trauma to internal tissues.Type: ApplicationFiled: May 19, 2003Publication date: March 11, 2004Applicant: EVALVE, INC., a Delaware CorporationInventors: Eric A. Goldfarb, Alfred H. Raschdorf, Jaime E. Sarabia, Sylvia Wen Chin Fan, Kent D. Dell, Jan Komtebedde, Ferolyn T. Powell
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Publication number: 20040039442Abstract: The methods, devices, and systems are provided for performing endovascular repair of atrioventricular and other cardiac valves in the heart. Regurgitation of an atrioventricular valve, particularly a mitral valve, can be repaired by modifying a tissue structure selected from the valve leaflets, the valve annulus, the valve chordae, and the papillary muscles. These structures may be modified by suturing, stapling, snaring, or shortening, using interventional tools which are introduced to a heart chamber. Preferably, the tissue structures will be temporarily modified prior to permanent modification. For example, opposed valve leaflets may be temporarily grasped and held into position prior to permanent attachment.Type: ApplicationFiled: August 7, 2003Publication date: February 26, 2004Applicant: EVALVE, INC.Inventors: Frederick G. St. Goar, James I-Lin Fann, Mark E. Deem, Hanson S. Gifford, Martin S. Dieck, Brain B. Martin, Sylvia Wen-Chin Fan, Eric A. Goldfarb, Kent D. Dell, Ferolyn T. Powell
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Publication number: 20040030382Abstract: The methods, devices, and systems are provided for performing endovascular repair of atrioventricular and other cardiac valves in the heart. Regurgitation of an atrioventricular valve, particularly a mitral valve, can be repaired by modifying a tissue structure selected from the valve leaflets, the valve annulus, the valve chordae, and the papillary muscles. These structures may be modified by suturing, stapling, snaring, or shortening, using interventional tools which are introduced to a heart chamber. Preferably, the tissue structures will be temporarily modified prior to permanent modification. For example, opposed valve leaflets may be temporarily grasped and held into position prior to permanent attachment.Type: ApplicationFiled: August 5, 2003Publication date: February 12, 2004Applicant: EVALVE, INC.Inventors: Frederick G. St. Goar, James I-Lin Fann, Mark E. Deem, Hanson s. Gifford, Martin S Dieck, Brian B. Martin, Sylvia Wen-Chin Fan, Erik A. Goldfarb, Kent D. Dell, Ferolyn T. Powell
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Publication number: 20040003819Abstract: The methods, devices, and systems are provided for performing endovascular repair of atrioventricular and other cardiac valves in the heart. Regurgitation of an atrioventricular valve, particularly a mitral valve, can be repaired by modifying a tissue structure selected from the valve leaflets, the valve annulus, the valve chordae, and the papillary muscles. These structures may be modified by suturing, stapling, snaring, or shortening, using interventional tools which are introduced to a heart chamber. Preferably, the tissue structures will be temporarily modified prior to permanent modification. For example, opposed valve leaflets may be temporarily grasped and held into position prior to permanent attachment.Type: ApplicationFiled: July 3, 2003Publication date: January 8, 2004Applicant: EVALVE, INC.Inventors: Frederick G. St. Goar, Mark E. Deem, Hanson S. Gifford, Martin S. Dieck, Brian B. Martin, Sylvia Wen-Chin Fan, Eric A. Goldfarb, Kent D. Dell, Ferolyn T. Powell
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Patent number: 6638247Abstract: An intravascular catheter system for the treatment of occluded blood vessels that includes tissue displacement or hinged expansion members that are movable from a closed to an open position. An actuating assembly may be provided for moving the tissue expansion members between an open and closed position to exert a substantially lateral distal end force upon the region surrounding an occluded blood vessel. The tissue expansion members may stretch apart, tear or otherwise disrupt a vascular occlusion sufficiently to create a pathway that may support the passage or placement of a guidewire or an interventional vascular device across the occlusion or obstruction. Methods of crossing or displacing a vascular occlusion are further provided that include the positioning of a vascular catheter having at least one hinged spreading member positioned at the distal region of the catheter that is responsive to directed force along the longitudinal axis of the catheter.Type: GrantFiled: March 29, 2000Date of Patent: October 28, 2003Assignee: LuMend, Inc.Inventors: Matthew R. Selmon, Charles F. Milo, Robert L. Wynne, Suresh S. Pai, Kent D. Dell, Charles Gresl, Gerald Hansen, E. Richard Hill, III
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Patent number: 6629534Abstract: The methods, devices, and systems are provided for performing endovascular repair of atrioventricular and other cardiac valves in the heart. Regurgitation of an atrioventricular valve, particularly a mitral valve, can be repaired by modifying a tissue structure selected from the valve leaflets, the valve annulus, the valve chordae, and the papillary muscles. These structures may be modified by suturing, stapling, snaring, or shortening, using interventional tools which are introduced to a heart chamber. Preferably, the tissue structures will be temporarily modified prior to permanent modification. For example, opposed valve leaflets may be temporarily grasped and held into position prior to permanent attachment.Type: GrantFiled: April 7, 2000Date of Patent: October 7, 2003Assignee: Evalve, Inc.Inventors: Frederick G. St. Goar, James I-Lin Fann, Mark E. Deem, Hanson S. Gifford, III, Martin S. Dieck, Brian B. Martin, Sylvia Wen-Chin Fan, Eric A. Goldfarb, Kent D. Dell, Ferolyn T. Powell
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Patent number: 6599304Abstract: An intravascular catheter system for the treatment of occluded blood vessels that includes tissue displacement or hinged expansion members that are movable from a closed to an open position. An actuating assembly may be provided for moving the tissue expansion members between an open and closed position to exert a substantially lateral distal end force upon the region surrounding an occluded blood vessel. The tissue expansion members may stretch apart, tear or otherwise disrupt a vascular occlusion sufficiently to create a pathway that may support the passage or placement of a guidewire or an interventional vascular device across the occlusion or obstruction. Methods of crossing or displacing a vascular occlusion are further provided that include the positioning of a vascular catheter having at least one hinged spreading member positioned at the distal region of the catheter that is responsive to directed force along the longitudinal axis of the catheter.Type: GrantFiled: November 19, 1999Date of Patent: July 29, 2003Assignee: LuMend, Inc.Inventors: Matthew R. Selmon, Charles F. Milo, Robert L. Wynne, Suresh S. Pai, Kent D. Dell, Charles Gresl
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Patent number: 6508825Abstract: An intravascular catheter system for the treatment of occluded blood vessels that includes tissue displacement or hinged expansion members that are movable from a closed to an open position. An actuating assembly may be, provided for moving the tissue expansion members between an open and closed position to exert a substantially lateral distal end force upon the region surrounding an occluded blood vessel. The tissue expansion members may stretch apart, tear or otherwise disrupt a vascular occlusion sufficiently to create a pathway that may support the passage or placement of a guidewire or an interventional vascular device across the occlusion or obstruction. Methods of crossing or displacing a vascular occlusion are further provided that include the positioning of a vascular catheter having at least one hinged spreading member positioned at the distal region of the catheter that is responsive to directed force along the longitudinal axis of the catheter.Type: GrantFiled: September 8, 1998Date of Patent: January 21, 2003Assignee: LuMend, Inc.Inventors: Matthew R. Selmon, Charles F. Milo, Robert L. Wynne, Suresh S. Pai, Kent D. Dell, Charles Gresl, Gerald Hansen, E. Richard Hill, III
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Publication number: 20020133141Abstract: An instrument shaft for use in small openings where enhanced longitudinal dimensional stability and compressive loading characteristics are desirable. Various embodiments may be shafts of catheters used to treat peripheral vasculatures or coronary vasculatures. Embodiments of the catheter shaft provide enhanced longitudinal dimensional stability and compressive loading characteristics, while maintaining flexibility under loading conditions. In one embodiment, a catheter shaft includes an outer catheter shaft with a lumen therethrough, and an annular compression spring inside the outer catheter shaft. Also included is an actuation member inside the annular compression spring, wherein the actuation member actuates a working element at a distal end of the catheter.Type: ApplicationFiled: March 19, 2001Publication date: September 19, 2002Inventors: Kurt D. Sparks, David J. Kupiecki, Kent D. Dell
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Publication number: 20020013571Abstract: The present invention provides methods and devices for grasping, and optional repositioning and fixation of the valve leaflets to treat cardiac valve regurgitation, particularly mitral valve regurgitation. Such grasping will typically be atraumatic providing a number of benefits. For example, atraumatic grasping may allow repositioning of the devices relative to the leaflets and repositioning of the leaflets themselves without damage to the leaflets. However, in some cases it may be necessary or desired to include grasping which pierces or otherwise permanently affects the leaflets. In some of these cases, the grasping step includes fixation.Type: ApplicationFiled: June 27, 2001Publication date: January 31, 2002Applicant: EVALVE, INC.Inventors: Eric A. Goldfarb, Kent D. Dell, Sylvia Wen-Chin Fan, Brian B. Martin, Ferolyn T. Powell, Alfred H. Raschdorf, Troy L. Thornton
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Publication number: 20010018596Abstract: An intravascular catheter system for the treatment of occluded blood vessels that includes tissue displacement or hinged expansion members that are movable from a closed to an open position. An actuating assembly may be provided for moving the tissue expansion members between an open and closed position to exert a substantially lateral distal end force upon the region surrounding an occluded blood vessel. The tissue expansion members may stretch apart, tear or otherwise disrupt a vascular occlusion sufficiently to create a pathway that may support the passage or placement of a guidewire or an interventional vascular device across the occlusion or obstruction. Methods of crossing or displacing a vascular occlusion are further provided that include the positioning of a vascular catheter having at least one hinged spreading member positioned at the distal region of the catheter that is responsive to directed force along the longitudinal axis of the catheter.Type: ApplicationFiled: April 13, 2001Publication date: August 30, 2001Inventors: Matthew R. Selmon, Charles F. Milo, Robert L. Wynne, Suresh S. Pai, Kent D. Dell, Charles Gresl, Gerald Hansen, E. Richard Hill
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Patent number: 6217549Abstract: An intravascular catheter system for the treatment of occluded blood vessels that includes tissue displacement or hinged expansion members that are movable from a closed to an open position. An actuating assembly may be provided for moving the tissue expansion members between an open and closed position to exert a substantially lateral distal end force upon the region surrounding an occluded blood vessel. The tissue expansion members may stretch apart, tear or otherwise disrupt a vascular occlusion sufficiently to create a pathway that may support the passage or placement of a guidewire or an interventional vascular device across the occlusion or obstruction. Methods of crossing or displacing a vascular occlusion are further provided that include the positioning of a vascular catheter having at least one hinged spreading member positioned at the distal region of the catheter that is responsive to directed force along the longitudinal axis of the catheter.Type: GrantFiled: September 8, 1998Date of Patent: April 17, 2001Assignee: LuMend, Inc.Inventors: Matthew R. Selmon, Charles F. Milo, Robert L. Wynne, Suresh S. Pai, Kent D. Dell, Charles Gresl