Patents by Inventor Cary K. Hata
Cary K. Hata 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: 20230310075Abstract: A catheter configured to deliver therapeutic energy to a tissue is disclosed. The catheter comprises an elongate shaft extending along a shaft longitudinal axis. The catheter further comprises a flexible tip assembly coupled to a distal end of the elongate shaft, the flexible tip assembly comprising at least three mapping electrodes equally spaced about a circumference of the flexible tip, a flexible ablation electrode, and a plurality of irrigation ports. The catheter further comprises an irrigation lumen extending through the elongate shaft and into an interior of the flexible tip assembly, wherein the irrigation lumen is configured to direct irrigation fluid to the plurality of irrigation ports.Type: ApplicationFiled: June 8, 2023Publication date: October 5, 2023Inventors: Alan de la Rama, Peter Chen, Cary K. Hata
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Patent number: 11707319Abstract: A catheter configured to deliver therapeutic energy to a tissue can include can include an elongate shaft extending along a shaft longitudinal axis and comprising a shaft proximal end and a shaft distal end. The catheter can include a flexible tip assembly comprising a tip assembly outer surface, wherein the flexible tip assembly is connected to the shaft distal end and is configured to deliver therapeutic energy to the tissue, and wherein the flexible tip assembly further includes. The flexible tip assembly can include an insulative layer comprising an insulative layer outer surface, wherein the insulative layer is disposed on the tip assembly outer surface and a mapping electrode disposed on the insulative layer outer surface.Type: GrantFiled: April 17, 2019Date of Patent: July 25, 2023Assignee: St. Jude Medical, Cardiology Division, Inc.Inventors: Alan de la Rama, Peter Chen, Cary K. Hata
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Patent number: 11383078Abstract: Flexible high-density mapping catheter tips and flexible ablation catheter tips with onboard high-density mapping electrodes are disclosed. These tips can be used for diagnosing and treating cardiac arrhythmias. The flexible, distal tips are adapted to conform to tissue and comprise a plurality of microelectrodes mounted to permit relative movement among at least some of the microelectrodes. The flexible tip portions may comprise a flexible framework forming a flexible array of microelectrodes (for example, a planar or cylindrical array) adapted to conform to tissue and constructed at least in part from nonconductive material in some embodiments. The flexible array of microelectrodes may be formed from a plurality of rows of longitudinally-aligned microelectrodes. The flexible array may further comprise, for example, a plurality of electrode-carrying arms or electrode-carrier bands. Multiple flexible frameworks may be present on a single device.Type: GrantFiled: October 31, 2019Date of Patent: July 12, 2022Assignee: St. Jude Medical, Cardiology Division, Inc.Inventors: Alan de la Rama, Cary K. Hata, Don Curtis Deno, Carlo Pappone
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Patent number: 10857349Abstract: Flexible high-density mapping catheter tips and flexible ablation catheter tips with onboard high-density mapping electrodes are disclosed. These tips can be used for diagnosing and treating cardiac arrhythmias. The flexible, distal tips are adapted to conform to tissue and comprise a plurality of microelectrodes mounted to permit relative movement among at least some of the microelectrodes. The flexible tip portions may comprise a flexible framework forming a flexible array of microelectrodes (for example, a planar or cylindrical array) adapted to conform to tissue and constructed at least in part from nonconductive material in some embodiments. The flexible array of microelectrodes may be formed from a plurality of rows of longitudinally-aligned microelectrodes. The flexible array may further comprise, for example, a plurality of electrode-carrying arms or electrode-carrier bands. Multiple flexible frameworks may be present on a single device.Type: GrantFiled: June 10, 2020Date of Patent: December 8, 2020Assignee: St. Jude Medical, Cardiology Division, Inc.Inventors: Alan de la Rama, Cary K. Hata, Don Curtis Deno, Carlo Pappone
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Patent number: 10842990Abstract: Flexible high-density mapping catheter tips and flexible ablation catheter tips with onboard high-density mapping electrodes are disclosed. These tips can be used for diagnosing and treating cardiac arrhythmias. The flexible, distal tips are adapted to conform to tissue and comprise a plurality of microelectrodes mounted to permit relative movement among at least some of the microelectrodes. The flexible tip portions may comprise a flexible framework forming a flexible array of microelectrodes (for example, a planar or cylindrical array) adapted to conform to tissue and constructed at least in part from nonconductive material in some embodiments. The flexible array of microelectrodes may be formed from a plurality of rows of longitudinally-aligned microelectrodes. The flexible array may further comprise, for example, a plurality of electrode-carrying arms or electrode-carrier bands. Multiple flexible frameworks may be present on a single device.Type: GrantFiled: July 1, 2020Date of Patent: November 24, 2020Assignee: St. Jude Medical, Cardiology Division, Inc.Inventors: Alan de la Rama, Cary K. Hata, Don Curtis Deno, Carlo Pappone
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Publication number: 20200330752Abstract: Flexible high-density mapping catheter tips and flexible ablation catheter tips with onboard high-density mapping electrodes are disclosed. These tips can be used for diagnosing and treating cardiac arrhythmias. The flexible, distal tips are adapted to conform to tissue and comprise a plurality of microelectrodes mounted to permit relative movement among at least some of the microelectrodes. The flexible tip portions may comprise a flexible framework forming a flexible array of microelectrodes (for example, a planar or cylindrical array) adapted to conform to tissue and constructed at least in part from nonconductive material in some embodiments. The flexible array of microelectrodes may be formed from a plurality of rows of longitudinally-aligned microelectrodes. The flexible array may further comprise, for example, a plurality of electrode-carrying arms or electrode-carrier bands. Multiple flexible frameworks may be present on a single device.Type: ApplicationFiled: July 1, 2020Publication date: October 22, 2020Inventors: Alan de la Rama, Cary K. Hata, Don Curtis Deno, Carlo Pappone
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Publication number: 20200297996Abstract: Flexible high-density mapping catheter tips and flexible ablation catheter tips with onboard high-density mapping electrodes are disclosed. These tips can be used for diagnosing and treating cardiac arrhythmias. The flexible, distal tips are adapted to conform to tissue and comprise a plurality of microelectrodes mounted to permit relative movement among at least some of the microelectrodes. The flexible tip portions may comprise a flexible framework forming a flexible array of microelectrodes (for example, a planar or cylindrical array) adapted to conform to tissue and constructed at least in part from nonconductive material in some embodiments. The flexible array of microelectrodes may be formed from a plurality of rows of longitudinally-aligned microelectrodes. The flexible array may further comprise, for example, a plurality of electrode-carrying arms or electrode-carrier bands. Multiple flexible frameworks may be present on a single device.Type: ApplicationFiled: June 10, 2020Publication date: September 24, 2020Inventors: Alan de la Rama, Cary K. Hata, Don Curtis Deno, Carlo Pappone
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Publication number: 20200138378Abstract: Flexible high-density mapping catheter tips and flexible ablation catheter tips with onboard high-density mapping electrodes are disclosed. These tips can be used for diagnosing and treating cardiac arrhythmias. The flexible, distal tips are adapted to conform to tissue and comprise a plurality of microelectrodes mounted to permit relative movement among at least some of the microelectrodes. The flexible tip portions may comprise a flexible framework forming a flexible array of microelectrodes (for example, a planar or cylindrical array) adapted to conform to tissue and constructed at least in part from nonconductive material in some embodiments. The flexible array of microelectrodes may be formed from a plurality of rows of longitudinally-aligned microelectrodes. The flexible array may further comprise, for example, a plurality of electrode-carrying arms or electrode-carrier bands. Multiple flexible frameworks may be present on a single device.Type: ApplicationFiled: October 31, 2019Publication date: May 7, 2020Inventors: Alan de la Rama, Cary K. Hata, Don Curtis Deno, Carlo Pappone
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Publication number: 20190239950Abstract: A catheter configured to deliver therapeutic energy to a tissue can include can include an elongate shaft extending along a shaft longitudinal axis and comprising a shaft proximal end and a shaft distal end. The catheter can include a flexible tip assembly comprising a tip assembly outer surface, wherein the flexible tip assembly is connected to the shaft distal end and is configured to deliver therapeutic energy to the tissue, and wherein the flexible tip assembly further includes. The flexible tip assembly can include an insulative layer comprising an insulative layer outer surface, wherein the insulative layer is disposed on the tip assembly outer surface and a mapping electrode disposed on the insulative layer outer surface.Type: ApplicationFiled: April 17, 2019Publication date: August 8, 2019Inventors: Alan de la Rama, Peter Chen, Cary K. Hata
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Patent number: 8639310Abstract: The disclosure relates to a variety of systems and methods for sensing electrical events about a selected annulus region of the heart and for treating tissue in the selected annulus region. Wherein the system includes a first catheter that has an expandable member, an ablation element, and a lumen configured to allow a second catheter therethrough. The second catheter includes a distal section in a ring shape and a plurality of electrodes coupled around the ring. Optionally a second lumen can be included through the first catheter that allows for contrast media to be delivered to the distal end of the system.Type: GrantFiled: February 27, 2013Date of Patent: January 28, 2014Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Peter C. Chen, Alan de la Rama, Cary K. Hata, Vivian Tran
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Patent number: 8588886Abstract: Embodiments of the present invention provide a catheter that comprises an elongated catheter body (16) and an electrode assembly (10) at the distal end of the catheter body. The electrode assembly comprises a plurality of spines (11), each of the spines having a proximal end connected to the distal end of the catheter and a distal end, the distal ends of the spines being connected at a spine tip junction (13). Each spine includes an elbow (20) having at least one discontinuity in stiffness at an intermediate position between the distal end and the proximal end thereof. The spines include a plurality of electrodes (12). The electrode assembly is collapsible to a collapsed arrangement to fit within a lumen of the elongated catheter body and expandable to an expanded arrangement with the elbows of the spines bending outwardly relative to the proximal and distal ends of the spines.Type: GrantFiled: July 17, 2012Date of Patent: November 19, 2013Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Alan de la Rama, Cary K. Hata
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Publication number: 20130237791Abstract: The disclosure relates to a variety of systems and methods for sensing electrical events about a selected annulus region of the heart and for treating tissue in the selected annulus region. Wherein the system includes a first catheter that has an expandable member, an ablation element, and a lumen configured to allow a second catheter therethrough. The second catheter includes a distal section in a ring shape and a plurality of electrodes coupled around the ring. Optionally a second lumen can be included through the first catheter that allows for contrast media to be delivered to the distal end of the system.Type: ApplicationFiled: February 27, 2013Publication date: September 12, 2013Applicant: ST. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Peter C. Chen, Alan de la Rama, Cary K. Hata, Vivian Tran
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Publication number: 20130018246Abstract: Embodiments of the present invention provide a catheter that comprises an elongated catheter body (16) and an electrode assembly (10) at the distal end of the catheter body. The electrode assembly comprises a plurality of spines (11), each of the spines having a proximal end connected to the distal end of the catheter and a distal end, the distal ends of the spines being connected at a spine tip junction (13). Each spine includes an elbow (20) having at least one discontinuity in stiffness at an intermediate position between the distal end and the proximal end thereof. The spines include a plurality of electrodes (12). The electrode assembly is collapsible to a collapsed arrangement to fit within a lumen of the elongated catheter body and expandable to an expanded arrangement with the elbows of the spines bending outwardly relative to the proximal and distal ends of the spines.Type: ApplicationFiled: July 17, 2012Publication date: January 17, 2013Inventors: Alan de la Rama, Cary K. Hata
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Patent number: 8224416Abstract: Embodiments of the present invention provide a catheter that comprises an elongated catheter body (16) and an electrode assembly (10) at the distal end of the catheter body. The electrode assembly comprises a plurality of spines (11), each of the spines having a proximal end connected to the distal end of the catheter and a distal end, the distal ends of the spines being connected at a spine tip junction (13). Each spine includes an elbow (20) having at least one discontinuity in stiffness at an intermediate position between the distal end and the proximal end thereof. The spines include a plurality of electrodes (12). The electrode assembly is collapsible to a collapsed arrangement to fit within a lumen of the elongated catheter body and expandable to an expanded arrangement with the elbows of the spines bending outwardly relative to the proximal and distal ends of the spines.Type: GrantFiled: May 9, 2008Date of Patent: July 17, 2012Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Alan de la Rama, Cary K. Hata
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Publication number: 20110230797Abstract: The disclosure relates to a variety of systems and methods for sensing electrical events about a selected annulus region of the heart and for treating tissue in the selected annulus region. Wherein the system includes a first catheter that has an expandable member, an ablation element, and a lumen configured to allow a second catheter therethrough. The second catheter includes a distal section in a ring shape and a plurality of electrodes coupled around the ring. Optionally a second lumen can be included through the first catheter that allows for contrast media to be delivered to the distal end of the system.Type: ApplicationFiled: April 20, 2011Publication date: September 22, 2011Inventors: Peter C. Chen, Alan de la Rama, Cary K. Hata, Vivian Tran
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Publication number: 20100076426Abstract: Embodiments of the present invention provide a catheter that comprises an elongated catheter body (16) and an electrode assembly (10) at the distal end of the catheter body. The electrode assembly comprises a plurality of spines (11), each of the spines having a proximal end connected to the distal end of the catheter and a distal end, the distal ends of the spines being connected at a spine tip junction (13). Each spine includes an elbow (20) having at least one discontinuity in stiffness at an intermediate position between the distal end and the proximal end thereof. The spines include a plurality of electrodes (12). The electrode assembly is collapsible to a collapsed arrangement to fit within a lumen of the elongated catheter body and expandable to an expanded arrangement with the elbows of the spines bending outwardly relative to the proximal and distal ends of the spines.Type: ApplicationFiled: May 9, 2008Publication date: March 25, 2010Inventors: Alan de la Rama, Cary K. Hata
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Publication number: 20080177205Abstract: A catheter for ablating body tissue of the interior regions of the heart includes a handle assembly, a shaft, and a distal tip section coupled to the distal end of the shaft. The distal tip section has a non-compliant and non-porous cap that has a tubular wall that defines a bore, and an ablation element that is housed inside the bore and spaced apart from the wall of the cap.Type: ApplicationFiled: October 22, 2007Publication date: July 24, 2008Inventors: Alan de la Rama, Tho Hoang Nguyen, Vivian Tran, Cary K. Hata, Peter C. Chen
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Patent number: 7285116Abstract: A catheter for ablating body tissue of the interior regions of the heart includes a handle assembly, a shaft, and a distal tip section coupled to the distal end of the shaft. The distal tip section has a non-compliant and non-porous cap that has a tubular wall that defines a bore, and an ablation element that is housed inside the bore and spaced apart from the wall of the cap.Type: GrantFiled: May 15, 2004Date of Patent: October 23, 2007Assignee: Irvine Biomedical Inc.Inventors: Alan de la Rama, Tho Hoang Nguyen, Vivian Tran, Cary K. Hata, Peter C Chen
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Publication number: 20030212390Abstract: A catheter system has an RF catheter, an ultrasound catheter, and an ablation generator coupled to the RF generator and the ultrasound generator. The ablation generator is capable of generating RF energy and ultrasound energy.Type: ApplicationFiled: May 7, 2002Publication date: November 13, 2003Inventors: Peter C. Chen, Tho Hoang Nguyen, Cary K. Hata, Alan de la Rama