Patents by Inventor Don Tran
Don Tran 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: 20240261097Abstract: Delivery devices for a stented prosthetic heart valve. The delivery device includes a spindle, at least one cord, and a covering feature associated with the spindle for selectively covering at least a portion of a stented prosthetic heart valve tethered to the spindle in a delivery state. In some embodiments, the covering feature includes a tip mounted to the spindle. The tip can include an overhang region for selectively covering a portion of the stented prosthetic heart valve. In other embodiments, the tip can include a tip body and a compressible foam bumper. In yet other embodiments, the covering feature includes an outer sheath arranged to selectively cover the stented prosthetic heart valve. The outer sheath can be elastic and stretchable for recapturing a partially expanded prosthesis, for example by including one or more windows covered by a stretchable covering layer.Type: ApplicationFiled: March 19, 2024Publication date: August 8, 2024Inventors: Brendan Vaughan, Maeve Britton, Martha Barajas-Torres, Susheel Deshmukh, Leonel Mendoza, Siyan Som, Michele Silver, Don Tran, Nathan Brown, Jill Mendelson
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Patent number: 11974919Abstract: Delivery devices for delivery of a stented prosthetic heart valve. Various delivery devices include an outer sheath assembly including an outer sheath connected to a capsule that is advanced proximally to retain the prosthetic valve, which is secured over an inner shaft assembly of the delivery device. The delivery device further includes a bumper to provide a smooth transition of the capsule over the prosthetic valve during loading and recapture procedures. The bumper is expandable from a first position to a second position in which a distal end of the bumper is expanded to increase its diameter. The bumper can be biased in the second, expanded position so that the bumper automatically transitions to the expanded position upon retraction of the outer sheath.Type: GrantFiled: July 22, 2022Date of Patent: May 7, 2024Assignee: MEDTRONIC VASCULAR, INC.Inventors: Don Tran, Martha Barajas-Torres, James Mitchell, Leonel Mendoza, Siyan Som, Jill Mendelson, David Grossman
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Patent number: 11963872Abstract: Delivery devices for a stented prosthetic heart valve. The delivery device includes a spindle, at least one cord, and a covering feature associated with the spindle for selectively covering at least a portion of a stented prosthetic heart valve tethered to the spindle in a delivery state. In some embodiments, the covering feature includes a tip mounted to the spindle. The tip can include an overhang region for selectively covering a portion of the stented prosthetic heart valve. In other embodiments, the tip can include a tip body and a compressible foam bumper. In yet other embodiments, the covering feature includes an outer sheath arranged to selectively cover the stented prosthetic heart valve. The outer sheath can be elastic and stretchable for recapturing a partially expanded prosthesis, for example by including one or more windows covered by a stretchable covering layer.Type: GrantFiled: July 27, 2020Date of Patent: April 23, 2024Assignee: MEDTRONIC VASCULAR, INC.Inventors: Brendan Vaughan, Maeve Britton, Martha Barajas-Torres, Susheel Deshmukh, Leonel Mendoza, Siyan Som, Michele Silver, Don Tran, Nathan Brown, Jill Mendelson
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Publication number: 20240016605Abstract: Numerous delivery devices for delivery of a stented prosthesis, such as a stented prosthetic heart valve. Various delivery devices include a capsule that is advanced proximally to retain the stented prosthesis, which is secured over an inner shaft assembly of the delivery device. The delivery device further includes a bumper or bumper assembly to provide a smooth transition of the capsule over the stented prosthesis. In some alternate disclosed embodiments, the bumper further serves to connect various elements of the inner shaft assembly. Additional embodiments include a bumper assembly arranged and configured to longitudinally expand and contract to substantially fill any open space as the capsule is retracted from the stented prosthesis, which prevents kinking in the capsule. Additional embodiments include proximal and/or distal bumpers for temporarily covering and smoothing the ends of the stented prosthesis as part of a delivery device that does not include a capsule.Type: ApplicationFiled: September 29, 2023Publication date: January 18, 2024Inventors: Don Tran, Martha Barajas-Torres, Marian Lally, Michael Gloss, Timothy Groen, Leonel Mendoza, Siyan Som, Michele Silver, Nathan Brown, Jill Mendelson
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Patent number: 11806236Abstract: Numerous delivery devices for delivery of a stented prosthesis, such as a stented prosthetic heart valve. Various delivery devices include a capsule that is advanced proximally to retain the stented prosthesis, which is secured over an inner shaft assembly of the delivery device. The delivery device further includes a bumper or bumper assembly to provide a smooth transition of the capsule over the stented prosthesis. In some alternate disclosed embodiments, the bumper further serves to connect various elements of the inner shaft assembly. Additional embodiments include a bumper assembly arranged and configured to longitudinally expand and contract to substantially fill any open space as the capsule is retracted from the stented prosthesis, which prevents kinking in the capsule. Additional embodiments include proximal and/or distal bumpers for temporarily covering and smoothing the ends of the stented prosthesis as part of a delivery device that does not include a capsule.Type: GrantFiled: December 15, 2020Date of Patent: November 7, 2023Assignee: MEDTRONIC VASCULAR, INC.Inventors: Don Tran, Martha Barajas-Torres, Marian Lally, Michael Gloss, Timothy Groen, Leonel Mendoza, Siyan Som, Michele Silver, Nathan Brown, Jill Mendelson
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Publication number: 20220354643Abstract: Delivery devices for delivery of a stented prosthetic heart valve. Various delivery devices include an outer sheath assembly including an outer sheath connected to a capsule that is advanced proximally to retain the prosthetic valve, which is secured over an inner shaft assembly of the delivery device. The delivery device further includes a bumper to provide a smooth transition of the capsule over the prosthetic valve during loading and recapture procedures. The bumper is expandable from a first position to a second position in which a distal end of the bumper is expanded to increase its diameter. The bumper can be biased in the second, expanded position so that the bumper automatically transitions to the expanded position upon retraction of the outer sheath.Type: ApplicationFiled: July 22, 2022Publication date: November 10, 2022Applicant: Medtronic Vascular, Inc.Inventors: Don Tran, Martha Barajas-Torres, James Mitchell, Leonel Mendoza, Siyan Som, Jill Mendelson, David Grossman
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Patent number: 11426276Abstract: Delivery devices for delivery of a stented prosthetic heart valve. Various delivery devices include an outer sheath assembly including an outer sheath connected to a capsule that is advanced proximally to retain the prosthetic valve, which is secured over an inner shaft assembly of the delivery device. The delivery device further includes a bumper to provide a smooth transition of the capsule over the prosthetic valve during loading and recapture procedures. The bumper is expandable from a first position to a second position in which a distal end of the bumper is expanded to increase its diameter. The bumper can be biased in the second, expanded position so that the bumper automatically transitions to the expanded position upon retraction of the outer sheath.Type: GrantFiled: October 12, 2016Date of Patent: August 30, 2022Assignee: Medtronic Vascular, Inc.Inventors: Don Tran, Martha Barajas-Torres, James Mitchell, Leonel Mendoza, Siyan Som, Jill Mendelson, David Grossman
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Patent number: 11395737Abstract: The present disclosure relates to numerous devices and methods for transcatheter stented prosthetic heart valve loading and delivery. Such devices and methods reduce suture tangling and also provide the ability to adjust the stented prosthetic heart valve expansion and contraction prior to the final release of the stented prosthetic heart valve from the delivery device.Type: GrantFiled: May 31, 2019Date of Patent: July 26, 2022Assignee: Medtronic Vascular, Inc.Inventors: Martha Barajas-Torres, Kevin Mauch, Jeffrey Sandstrom, Jill Mendelson, Don Tran
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Publication number: 20220008127Abstract: A neuromodulation catheter in accordance with a particular embodiment includes an elongate shaft and a neuromodulation element operably connected to the shaft. The shaft includes a proximal hypotube segment at its proximal end portion and a jacket disposed around at least a portion of an outer surface of the hypotube segment. The jacket may be made at least partially of a polymer blend including polyether block amide and polysiloxane. The neuromodulation element includes a distal hypotube segment and a tubular jacket disposed around at least a portion of an outer surface of the distal hypotube segment. The jacket has reduced-diameter segments spaced apart along its longitudinal axis. The neuromodulation element further includes band electrodes respectively seated in the reduced-diameter segments and respectively forming closed loops extending circumferentially around the jacket.Type: ApplicationFiled: September 24, 2021Publication date: January 13, 2022Inventors: Don Tran, Rudy Beasley, Jaime Rios, Sukyoung Shin, Sina Som
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Patent number: 11154353Abstract: A neuromodulation catheter in accordance with a particular embodiment includes an elongate shaft and a neuromodulation element operably connected to the shaft. The shaft includes a proximal hypotube segment at its proximal end portion and a jacket disposed around at least a portion of an outer surface of the hypotube segment. The jacket may be made at least partially of a polymer blend including polyether block amide and polysiloxane. The neuromodulation element includes a distal hypotube segment and a tubular jacket disposed around at least a portion of an outer surface of the distal hypotube segment. The jacket has reduced-diameter segments spaced apart along its longitudinal axis. The neuromodulation element further includes band electrodes respectively seated in the reduced-diameter segments and respectively forming closed loops extending circumferentially around the jacket.Type: GrantFiled: December 21, 2018Date of Patent: October 26, 2021Assignee: MEDTRONIC ARDIAN LUXEMBOURG S.A.R.L.Inventors: Don Tran, Rudy Beasley, Jaime Rios, Sukyoung Shin, Sina Som
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Publication number: 20210093451Abstract: Numerous delivery devices for delivery of a stented prosthesis, such as a stented prosthetic heart valve. Various delivery devices include a capsule that is advanced proximally to retain the stented prosthesis, which is secured over an inner shaft assembly of the delivery device. The delivery device further includes a bumper or bumper assembly to provide a smooth transition of the capsule over the stented prosthesis. In some alternate disclosed embodiments, the bumper further serves to connect various elements of the inner shaft assembly. Additional embodiments include a bumper assembly arranged and configured to longitudinally expand and contract to substantially fill any open space as the capsule is retracted from the stented prosthesis, which prevents kinking in the capsule. Additional embodiments include proximal and/or distal bumpers for temporarily covering and smoothing the ends of the stented prosthesis as part of a delivery device that does not include a capsule.Type: ApplicationFiled: December 15, 2020Publication date: April 1, 2021Applicant: Medtronic Vascular, Inc.Inventors: Don Tran, Martha Barajas-Torres, Marian Lally, Michael Gloss, Timothy Groen, Leonel Mendoza, Siyan Som, Michele Silver, Nathan Brown, Jill Mendelson
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Patent number: 10893938Abstract: Numerous delivery devices for delivery of a stented prosthesis, such as a stented prosthetic heart valve. Various delivery devices include a capsule that is advanced proximally to retain the stented prosthesis, which is secured over an inner shaft assembly of the delivery device. The delivery device further includes a bumper or bumper assembly to provide a smooth transition of the capsule over the stented prosthesis. In some alternate disclosed embodiments, the bumper further serves to connect various elements of the inner shaft assembly. Additional embodiments include a bumper assembly arranged and configured to longitudinally expand and contract to substantially fill any open space as the capsule is retracted from the stented prosthesis, which prevents kinking in the capsule. Additional embodiments include proximal and/or distal bumpers for temporarily covering and smoothing the ends of the stented prosthesis as part of a delivery device that does not include a capsule.Type: GrantFiled: March 3, 2017Date of Patent: January 19, 2021Assignee: Medtronic Vascular, Inc.Inventors: Don Tran, Martha Barajas-Torres, Marian Lally, Michael Gloss, Timothy Groen, Leonel Mendoza, Siyan Som, Michele Silver, Nathan Brown, Jill Mendelson
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Publication number: 20200352714Abstract: Delivery devices for a stented prosthetic heart valve. The delivery device includes a spindle, at least one cord, and a covering feature associated with the spindle for selectively covering at least a portion of a stented prosthetic heart valve tethered to the spindle in a delivery state. In some embodiments, the covering feature includes a tip mounted to the spindle. The tip can include an overhang region for selectively covering a portion of the stented prosthetic heart valve. In other embodiments, the tip can include a tip body and a compressible foam bumper. In yet other embodiments, the covering feature includes an outer sheath arranged to selectively cover the stented prosthetic heart valve. The outer sheath can be elastic and stretchable for recapturing a partially expanded prosthesis, for example by including one or more windows covered by a stretchable covering layer.Type: ApplicationFiled: July 27, 2020Publication date: November 12, 2020Applicant: Medtronic Vascular, Inc.Inventors: Brendan Vaughan, Maeve Britton, Martha Barajas-Torres, Susheel Deshmukh, Leonel Mendoza, Siyan Som, Michele Silver, Don Tran, Nathan Brown, Jill Mendelson
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Patent number: 10758350Abstract: Delivery devices for a stented prosthetic heart valve. The delivery device includes a spindle, at least one cord, and a covering feature associated with the spindle for selectively covering at least a portion of a stented prosthetic heart valve tethered to the spindle in a delivery state. In some embodiments, the covering feature includes a tip mounted to the spindle. The tip can include an overhang region for selectively covering a portion of the stented prosthetic heart valve. In other embodiments, the tip can include a tip body and a compressible foam bumper. In yet other embodiments, the covering feature includes an outer sheath arranged to selectively cover the stented prosthetic heart valve. The outer sheath can be elastic and stretchable for recapturing a partially expanded prosthesis, for example by including one or more windows covered by a stretchable covering layer.Type: GrantFiled: June 5, 2017Date of Patent: September 1, 2020Assignee: Medtronic Vascular, Inc.Inventors: Brendan Vaughan, Maeve Britton, Martha Barajas-Torres, Susheel Deshmukh, Leonel Mendoza, Siyan Som, Michele Silver, Don Tran, Nathan Brown, Jill Mendelson
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Patent number: 10441420Abstract: The present disclosure relates to numerous devices and methods for transcatheter stented prosthetic heart valve loading and delivery. Such devices and methods reduce suture tangling and also provide the ability to adjust the stented prosthetic heart valve expansion and contraction prior to the final release of the stented prosthetic heart valve from the delivery device.Type: GrantFiled: December 13, 2016Date of Patent: October 15, 2019Assignee: Medtronic Vascular, Inc.Inventors: Martha Barajas-Torres, Kevin Mauch, Jeffrey Sandstrom, Jill Mendelson, Don Tran
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Publication number: 20190282363Abstract: The present disclosure relates to numerous devices and methods for transcatheter stented prosthetic heart valve loading and delivery. Such devices and methods reduce suture tangling and also provide the ability to adjust the stented prosthetic heart valve expansion and contraction prior to the final release of the stented prosthetic heart valve from the delivery device.Type: ApplicationFiled: May 31, 2019Publication date: September 19, 2019Applicant: Medtronic Vascular, Inc.Inventors: Martha Barajas-Torres, Kevin Mauch, Jeffrey Sandstrom, Jill Mendelson, Don Tran
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Publication number: 20190262148Abstract: A tool for compressing a stented prosthesis. The tool includes first and second sets of rollers. The first set includes a plurality of rollers arranged to define a first working region having a first working diameter. The second set includes a plurality of rollers arranged to define a second working region having a second working diameter. The sets of rollers are arranged such that the working regions are axially aligned. The first working diameter is greater than the second working diameter. A stented prosthesis traversing the first working region and then the second working region is forced to a compressed state. In some embodiments, the tool includes one or more intermediate sets of rollers between the first and second sets of rollers, with each of the intermediate sets of rollers defining a working region having a working diameter. The respective working diameters progressively decrease in a downstream direction.Type: ApplicationFiled: May 8, 2019Publication date: August 29, 2019Applicant: Medtronic Vascular, Inc.Inventors: Geoffrey Orth, Kenny Bruner, Don Tran, Jill Mendelson, James R. Keogh
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Patent number: 10292844Abstract: A tool for compressing a stented prosthesis. The tool includes first and second sets of rollers. The first set includes a plurality of rollers arranged to define a first working region having a first working diameter. The second set includes a plurality of rollers arranged to define a second working region having a second working diameter. The sets of rollers are arranged such that the working regions are axially aligned. The first working diameter is greater than the second working diameter. A stented prosthesis traversing the first working region and then the second working region is forced to a compressed state. In some embodiments, the tool includes one or more intermediate sets of rollers between the first and second sets of rollers, with each of the intermediate sets of rollers defining a working region having a working diameter. The respective working diameters progressively decrease in a downstream direction.Type: GrantFiled: May 17, 2016Date of Patent: May 21, 2019Assignee: Medtronic Vascular, Inc.Inventors: Geoffrey Orth, Kenny Bruner, Don Tran, Jill Mendelson, James R. Keogh
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Publication number: 20190117302Abstract: A neuromodulation catheter in accordance with a particular embodiment includes an elongate shaft and a neuromodulation element operably connected to the shaft. The shaft includes a proximal hypotube segment at its proximal end portion and a jacket disposed around at least a portion of an outer surface of the hypotube segment. The jacket may be made at least partially of a polymer blend including polyether block amide and polysiloxane. The neuromodulation element includes a distal hypotube segment and a tubular jacket disposed around at least a portion of an outer surface of the distal hypotube segment. The jacket has reduced-diameter segments spaced apart along its longitudinal axis. The neuromodulation element further includes band electrodes respectively seated in the reduced-diameter segments and respectively forming closed loops extending circumferentially around the jacket.Type: ApplicationFiled: December 21, 2018Publication date: April 25, 2019Inventors: Don Tran, Rudolph Beasley, Jaime Rios, Sukyoung Shin, Sina Som
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Patent number: 10166069Abstract: A neuromodulation catheter in accordance with a particular embodiment includes an elongate shaft and a neuromodulation element operably connected to the shaft. The shaft includes a proximal hypotube segment at its proximal end portion and a jacket disposed around at least a portion of an outer surface of the hypotube segment. The jacket may be made at least partially of a polymer blend including polyether block amide and polysiloxane. The neuromodulation element includes a distal hypotube segment and a tubular jacket disposed around at least a portion of an outer surface of the distal hypotube segment. The jacket has reduced-diameter segments spaced apart along its longitudinal axis. The neuromodulation element further includes band electrodes respectively seated in the reduced-diameter segments and respectively forming closed loops extending circumferentially around the jacket.Type: GrantFiled: January 27, 2015Date of Patent: January 1, 2019Assignee: Medtronic Ardian Luxembourg S.a.r.l.Inventors: Don Tran, Rudy Beasley, Jaime Rios, Sukyoung Shin, Sina Som