Patents by Inventor Billie J. Millwee
Billie J. Millwee 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: 20200405478Abstract: A surgical sutureless valve that is attached to a stent frame for delivery to a location in a patient using percutaneous implantation devices and methods.Type: ApplicationFiled: September 11, 2020Publication date: December 31, 2020Applicant: Medtronic, Inc.Inventors: Billie J. Millwee, Mark J. Capps, Janice L. Shay, Debra A. Taitague, Mark J. Dolan, Carol E. Eberhardt
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Patent number: 10806569Abstract: A surgical sutureless valve that is attached to a stent frame for delivery to a location in a patient using percutaneous implantation devices and methods.Type: GrantFiled: May 15, 2018Date of Patent: October 20, 2020Assignee: Medtronic, Inc.Inventors: Billie J. Millwee, Mark J. Capps, Janice L. Shay, Debra A. Taitague, Mark J. Dolan, Carol E. Eberhardt
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Publication number: 20180256320Abstract: A surgical sutureless valve that is attached to a stent frame for delivery to a location in a patient using percutaneous implantation devices and methods.Type: ApplicationFiled: May 15, 2018Publication date: September 13, 2018Inventors: Billie J. Millwee, Mark J. Capps, Janice L. Shay, Debra A. Taitague, Mark J. Dolan, Carol E. Eberhardt
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Patent number: 9968444Abstract: A surgical sutureless valve that is attached to a stent frame for delivery to a location in a patient using percutaneous implantation devices and methods.Type: GrantFiled: November 9, 2011Date of Patent: May 15, 2018Assignee: Medtronic, Inc.Inventors: Billie J. Millwee, Mark J. Capps, Janice L. Shay, Debra A. Taitague, Mark J. Dolan, Carol E. Eberhardt
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Patent number: 8696743Abstract: A multi-leaflet valve, which includes at least two leaflets, an outer tube, and a seam protector for each seam. Each seam protector is positioned to be in contact with a portion of the outer tube, with tube portions and leaflet ends being positioned between adjacent seam protection pieces. The seam protectors provide a lower stress surface about which the leaflets can bend or flex during their opening and closing. The seam protectors may include an enlarged end portion with an extending straight surface, an inverted U-shaped structure, or a sinusoidal-shaped structure, for example. The valve can further be provided with a seam cover or protector that is stitched onto the seam allowance of the layers of one or more of the seams. The seams can be provided with one or more inserts to fill spaces between adjacent tissue layers and create tension in certain material sheets.Type: GrantFiled: April 16, 2009Date of Patent: April 15, 2014Assignee: Medtronic, Inc.Inventors: Arin N. Holecek, Carolyn Majkrzak, Carol E. Eberhardt, Billie J. Millwee, Thao M. Nguyen, Janice L. Shay, Cynthia H. Chiu, Tara S. Kupumbati
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Patent number: 8677601Abstract: A method of forming a leaflet of a prosthetic valve includes placing a first piece of material on a working surface. A leaflet mold is placed on the first piece of material, and provides a outer peripheral shape comprising a curved portion. A second piece of material is placed over the first piece and the leaflet mold. The first and second pieces of material are stitched to one another along at least a portion of the curved portion of the leaflet mold. The leaflet mold is removed from first and second pieces of material.Type: GrantFiled: February 10, 2012Date of Patent: March 25, 2014Assignee: Medtronic, Inc.Inventors: Billie J. Millwee, Janice L. Shay, Carolyn Majkrzak, Melissa Young, Tara S. Kupumbati
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Patent number: 8323336Abstract: A stented valve of two or more leaflets made of pericardium or other material having a relatively thin profile at the annulus. The leaflet surfaces are attached via chords to a stent frame, where the chords are positioned to mimic the native valve anatomy and functionality. In particular, the valves of one exemplary embodiment of the invention are sized to replace a mitral valve and therefore the chords are arranged to prevent prolapse of the leaflets into the atrium. The stented valve has a relatively short height at its annulus due to the positioning of the chords. In addition, the stented valve is capable of being crimped to a small enough size that it can be delivered to the implantation site via transcatheter delivery systems and methods.Type: GrantFiled: April 23, 2009Date of Patent: December 4, 2012Assignee: Medtronic, Inc.Inventors: Alexander J. Hill, Cynthia T. Clague, Carol Elsa Eberhardt, Ana R. Menk, Mark J. Capps, Billie J. Millwee, Janice Lynn Shay, Debra Ann Taitague, Joseph C. Morrow, Jerald Redmond
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Publication number: 20120137521Abstract: A method of forming a leaflet of a prosthetic valve includes placing a first piece of material on a working surface. A leaflet mold is placed on the first piece of material, and provides a outer peripheral shape comprising a curved portion. A second piece of material is placed over the first piece and the leaflet mold. The first and second pieces of material are stitched to one another along at least a portion of the curved portion of the leaflet mold. The leaflet mold is removed from first and second pieces of material.Type: ApplicationFiled: February 10, 2012Publication date: June 7, 2012Applicant: MEDTRONIC, INC.Inventors: Billie J. Millwee, Janice L. Shay, Carolyn Majkrzak, Melissa Young, Tara S. Kupumbati
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Patent number: 8136218Abstract: A mold assembly for forming a prosthetic valve having at least one leaflet, which includes a first plate having a first side from which at least one leaflet mold extends and a planar portion adjacent the at least one leaflet mold, wherein the planar portion has multiple access holes through its thickness, and a second plate having at least one mold opening and a planar portion adjacent the at least one mold opening, wherein each mold opening is sized and shaped to correspond with one of the leaflet molds of the first plate, and wherein the planar portion has multiple access holes through its thickness. The second plate is positionable relative to the first plate so that each of the leaflet molds of the first plate extend at least partially through one of the mold openings of the second plate.Type: GrantFiled: April 16, 2009Date of Patent: March 20, 2012Assignee: Medtronic, Inc.Inventors: Billie J. Millwee, Janice L. Shay, Carolyn Majkrzak, Melissa Young, Tara S. Kupumbati
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Publication number: 20120059454Abstract: A surgical sutureless valve that is attached to a stent frame for delivery to a location in a patient using percutaneous implantation devices and methods.Type: ApplicationFiled: November 9, 2011Publication date: March 8, 2012Applicant: Medtronic, Inc.Inventors: Billie J. Millwee, Mark J. Capps, Janice L. Shay, Debra A. Taitague, Mark J. Dolan, Carol E. Eberhardt
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Patent number: 8075611Abstract: A surgical sutureless valve that is attached to a stent frame for delivery to a location in a patient using percutaneous implantation devices and methods.Type: GrantFiled: June 2, 2009Date of Patent: December 13, 2011Assignee: Medtronic, Inc.Inventors: Billie J. Millwee, Mark J. Capps, Janice L. Shay, Debra A. Taitague, Mark J. Dolan, Carol E. Eberhardt
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Publication number: 20100305685Abstract: A surgical sutureless valve that is attached to a stent frame for delivery to a location in a patient using percutaneous implantation devices and methods.Type: ApplicationFiled: June 2, 2009Publication date: December 2, 2010Inventors: Billie J. Millwee, Mark J. Capps, Janice L. Shay, Debra A. Taitague, Mark J. Dolan, Carol E. Eberhardt
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Publication number: 20100023120Abstract: A multi-leaflet valve, which includes at least two leaflets, an outer tube, and a seam protector for each seam. Each seam protector is positioned to be in contact with a portion of the outer tube, with tube portions and leaflet ends being positioned between adjacent seam protection pieces. The seam protectors provide a lower stress surface about which the leaflets can bend or flex during their opening and closing. The seam protectors may include an enlarged end portion with an extending straight surface, an inverted U-shaped structure, or a sinusoidal-shaped structure, for example. The valve can further be provided with a seam cover or protector that is stitched onto the seam allowance of the layers of one or more of the seams. The seams can be provided with one or more inserts to fill spaces between adjacent tissue layers and create tension in certain material sheets.Type: ApplicationFiled: April 16, 2009Publication date: January 28, 2010Inventors: Arin N. Holecek, Carolyn Majkrzak, Carol E. Eberhardt, Billie J. Millwee, Thao M. Nguyen, Janice L. Shay, Cynthia H. Chiu, Tara S. Kupumbati
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Publication number: 20100011564Abstract: A mold assembly for forming a prosthetic valve having at least one leaflet, which includes a first plate having a first side from which at least one leaflet mold extends and a planar portion adjacent the at least one leaflet mold, wherein the planar portion has multiple access holes through its thickness, and a second plate having at least one mold opening and a planar portion adjacent the at least one mold opening, wherein each mold opening is sized and shaped to correspond with one of the leaflet molds of the first plate, and wherein the planar portion has multiple access holes through its thickness. The second plate is positionable relative to the first plate so that each of the leaflet molds of the first plate extend at least partially through one of the mold openings of the second plate.Type: ApplicationFiled: April 16, 2009Publication date: January 21, 2010Inventors: Billie J. Millwee, Janice L. Shay, Carolyn Majkrzak, Melissa Young, Tara S. Kupumbati
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Publication number: 20090281618Abstract: A stented valve of two or more leaflets made of pericardium or other material having a relatively thin profile at the annulus. The leaflet surfaces are attached via chords to a stent frame, where the chords are positioned to mimic the native valve anatomy and functionality. In particular, the valves of one exemplary embodiment of the invention are sized to replace a mitral valve and therefore the chords are arranged to prevent prolapse of the leaflets into the atrium. The stented valve has a relatively short height at its annulus due to the positioning of the chords. In addition, the stented valve is capable of being crimped to a small enough size that it can be delivered to the implantation site via transcatheter delivery systems and methods.Type: ApplicationFiled: April 23, 2009Publication date: November 12, 2009Applicant: Medtronic, Inc.Inventors: Alexander J. Hill, Cynthia Clague, Carol Elsa Eberhardt, Ana R. Menk, Mark J. Capps, Billie J. Millwee, Janice Lynn Shay, Debra Ann Taitague, Joseph C. Morrow, Jerald Redmond
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Patent number: D345910Type: GrantFiled: July 7, 1992Date of Patent: April 12, 1994Assignee: Medtronic, Inc.Inventors: Billie J. Millwee, Luis Salazar, Carol E. Eberhardt