Patents by Inventor Dipen Shah

Dipen Shah 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).

  • Patent number: 10111607
    Abstract: A method and apparatus that utilizes a force-time integral for real time estimation of lesion size in catheter-based ablation systems. The apparatus measures the force exerted by a contact ablation probe on a target tissue and integrates the force over an energization time of the ablation probe. The force-time integral can be calculated and utilized to provide an estimated lesion size (depth, volume and/or area) in real time. The force-time integral may also account for variations in the power delivered to the target tissue in real time to provide an improved estimation of the lesion size. In one embodiment, the force metric can be used as feedback to establish a desired power level delivered to the probe to prevent steam popping.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: October 30, 2018
    Assignee: ST JUDE MEDICAL INTERNATIONAL HOLDING S.À R.L.
    Inventors: Giovanni Leo, Dipen Shah, Hendrik Lambert
  • Publication number: 20170007323
    Abstract: A method and apparatus that utilizes a force-time integral for real time estimation of steam pop in catheter-based ablation systems. The apparatus measures the force exerted by a contact ablation probe on a target tissue and an energization parameter delivered to the ablation probe. The exerted force and energization parameter can be utilized to provide an estimation of the probability of steam pop. In one embodiment, the force and energization metrics can be used as feedback to establish a desired contact force and energization level combination to prevent steam popping.
    Type: Application
    Filed: July 14, 2016
    Publication date: January 12, 2017
    Inventors: Giovanni Leo, Dipen Shah, Hendrik Lambert
  • Publication number: 20160213282
    Abstract: A method and apparatus that utilizes a force-time integral for real time estimation of lesion size in catheter-based ablation systems. The apparatus measures the force exerted by a contact ablation probe on a target tissue and integrates the force over an energization time of the ablation probe. The force-time integral can be calculated and utilized to provide an estimated lesion size (depth, volume and/or area) in real time. The force-time integral may also account for variations in the power delivered to the target tissue in real time to provide an improved estimation of the lesion size. In one embodiment, the force metric can be used as feedback to establish a desired power level delivered to the probe to prevent steam popping.
    Type: Application
    Filed: December 22, 2015
    Publication date: July 28, 2016
    Inventors: Giovanni Leo, Dipen Shah, Hendrik Lambert
  • Patent number: 9237920
    Abstract: A method and apparatus that utilizes a force-time integral for real time estimation of lesion size in catheter-based ablation systems. The apparatus measures the force exerted by a contact ablation probe on a target tissue and integrates the force over an energization time of the ablation probe. The force-time integral can be calculated and utilized to provide an estimated lesion size (depth, volume and/or area) in real time. The force-time integral may also account for variations in the power delivered to the target tissue in real time to provide an improved estimation of the lesion size. In one embodiment, the force metric can be used as feedback to establish a desired power level delivered to the probe to prevent steam popping.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: January 19, 2016
    Assignee: St. Jude Medical Luxembourg Holding S.À.R.L.
    Inventors: Giovanni Leo, Dipen Shah, Hendrik Lambert
  • Publication number: 20140194869
    Abstract: A method and apparatus that utilizes a force-time integral for real time estimation of lesion size in catheter-based ablation systems. The apparatus measures the force exerted by a contact ablation probe on a target tissue and integrates the force over an energization time of the ablation probe. The force-time integral can be calculated and utilized to provide an estimated lesion size (depth, volume and/or area) in real time. The force-time integral may also account for variations in the power delivered to the target tissue in real time to provide an improved estimation of the lesion size. In one embodiment, the force metric can be used as feedback to establish a desired power level delivered to the probe to prevent steam popping.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 10, 2014
    Inventors: Giovanni Leo, Dipen Shah, Hendrik Lambert
  • Patent number: 8641705
    Abstract: A method and apparatus that utilizes a force-time integral for real time estimation of lesion size in catheter-based ablation systems. The apparatus measures the force exerted by a contact ablation probe on a target tissue and integrates the force over an energization time of the ablation probe. The force-time integral can be calculated and utilized to provide an estimated lesion size (depth, volume and/or area) in real time. The force-time integral may also account for variations in the power delivered to the target tissue in real time to provide an improved estimation of the lesion size. In one embodiment, the force metric can be used as feedback to establish a desired power level delivered to the probe to prevent steam popping.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: February 4, 2014
    Assignee: Endosense SA
    Inventors: Giovanni Leo, Dipen Shah, Hendrik Lambert
  • Patent number: 7272437
    Abstract: A system and a computed implemented methodology is disclosed for processing electrical signals recorded from the heart and, more particularly, for objectively deriving sub-components and comparing signals and their sub-components.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: September 18, 2007
    Assignee: C.R. Bard, Inc.
    Inventors: David P. Macadam, Paul J. Wang, Shawn X. Yang, Dipen Shah
  • Patent number: 7149563
    Abstract: An improved basket catheter is provided that is particularly useful for mapping the heart. The catheter comprises an elongated catheter body having proximal and distal ends and at least one lumen therethrough. A basket-shaped electrode assembly is mounted at the distal end of the catheter body. The basket assembly has proximal and distal ends and comprises a plurality of spines connected at their proximal and distal ends. Each spine comprises at least one electrode. The basket assembly has an expanded arrangement wherein the spines bow radially outwardly and a collapsed arrangement wherein the spines are arranged generally along the axis of the catheter body. The catheter further comprises a distal location sensor mounted at or near the distal end of the basket-shaped electrode assembly and a proximal location sensor mounted at or near the proximal end of the basket-shaped electrode assembly.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: December 12, 2006
    Assignee: Biosense Webster, Inc.
    Inventors: Kristine B. Fuimaono, Maria G. Rangel, Dipen Shah
  • Publication number: 20060009689
    Abstract: An improved basket catheter is provided that is particularly useful for mapping the heart. The catheter comprises an elongated catheter body having proximal and distal ends and at least one lumen therethrough. A basket-shaped electrode assembly is mounted at the distal end of the catheter body. The basket assembly has proximal and distal ends and comprises a plurality of spines connected at their proximal and distal ends. Each spine comprises at least one electrode. The basket assembly has an expanded arrangement wherein the spines bow radially outwardly and a collapsed arrangement wherein the spines are arranged generally along the axis of the catheter body. The catheter further comprises a distal location sensor mounted at or near the distal end of the basket-shaped electrode assembly and a proximal location sensor mounted at or near the proximal end of the basket-shaped electrode assembly.
    Type: Application
    Filed: September 13, 2005
    Publication date: January 12, 2006
    Inventors: Kristine Fuimaono, Maria Rangel, Dipen Shah
  • Patent number: 6970730
    Abstract: An improved basket catheter is provided that is particularly useful for mapping the heart. The catheter comprises an elongated catheter body having proximal and distal ends and at least one lumen therethrough. A basket-shaped electrode assembly is mounted at the distal end of the catheter body. The basket assembly has proximal and distal ends and comprises a plurality of spines connected at their proximal and distal ends. Each spine comprises at least one electrode. The basket assembly has an expanded arrangement wherein the spines bow radially outwardly and a collapsed arrangement wherein the spines are arranged generally along the axis of the catheter body. The catheter further comprises a distal location sensor mounted at or near the distal end of the basket-shaped electrode assembly and a proximal location sensor mounted at or near the proximal end of the basket-shaped electrode assembly.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: November 29, 2005
    Assignee: Biosense Webster, Inc.
    Inventors: Kristine B. Fuimaono, Maria G. Rangel, Dipen Shah
  • Patent number: 6968227
    Abstract: Computer implemented methods and associated systems are disclosed for processing electrical signals recorded from the heart and, more particularly, for objectively deriving sub-components and comparing signals and their sub-components.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: November 22, 2005
    Assignee: C.R. Bard, Inc.
    Inventors: David MacAdam, Paul J. Wang, Shawn Yang, Dipen Shah
  • Patent number: 6944495
    Abstract: Computer implemented methods and associated systems are disclosed for processing electrical signals recorded from the heart and, more particularly, for objectively deriving sub-components and comparing signals and their sub-components.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: September 13, 2005
    Assignee: C.R. Bard, Inc.
    Inventors: David P. MacAdam, Paul J. Wang, Shawn Yang, Dipen Shah
  • Publication number: 20040210121
    Abstract: An improved basket catheter is provided that is particularly useful for mapping the heart. The catheter comprises an elongated catheter body having proximal and distal ends and at least one lumen therethrough. A basket-shaped electrode assembly is mounted at the distal end of the catheter body. The basket assembly has proximal and distal ends and comprises a plurality of spines connected at their proximal and distal ends. Each spine comprises at least one electrode. The basket assembly has an expanded arrangement wherein the spines bow radially outwardly and a collapsed arrangement wherein the spines are arranged generally along the axis of the catheter body. The catheter further comprises a distal location sensor mounted at or near the distal end of the basket-shaped electrode assembly and a proximal location sensor mounted at or near the proximal end of the basket-shaped electrode assembly.
    Type: Application
    Filed: May 5, 2004
    Publication date: October 21, 2004
    Applicant: BIOSENSE WEBSTER, INC.
    Inventors: Kristine B. Fuimaono, Maria G. Rangel, Dipen Shah
  • Publication number: 20040127805
    Abstract: Computer implemented methods and associated systems are disclosed for processing electrical signals recorded from the heart and, more particularly, for objectively deriving sub-components and comparing signals and their sub-components.
    Type: Application
    Filed: July 11, 2003
    Publication date: July 1, 2004
    Inventors: David P. MacAdam, Paul J. Wang, Shawn Yang, Dipen Shah
  • Publication number: 20040122332
    Abstract: A system and a computed implemented methodology is disclosed for processing electrical signals recorded from the heart and, more particularly, for objectively deriving sub-components and comparing signals and their sub-components.
    Type: Application
    Filed: January 22, 2004
    Publication date: June 24, 2004
    Inventors: David P. Macadam, Paul J Wang, Shawn X Yang, Dipen Shah
  • Patent number: 6748255
    Abstract: An improved basket catheter is provided that is particularly useful for mapping the heart. The catheter comprises an elongated catheter body having proximal and distal ends and at least one lumen therethrough. A basket-shaped electrode assembly is mounted at the distal end of the catheter body. The basket assembly has proximal and distal ends and comprises a plurality of spines connected at their proximal and distal ends. Each spine comprises at least one electrode. The basket assembly has an expanded arrangement wherein the spines bow radially outwardly and a collapsed arrangement wherein the spines are arranged generally along the axis of the catheter body. The catheter further comprises a distal location sensor mounted at or near the distal end of the basket-shaped electrode assembly and a proximal location sensor mounted at or near the proximal end of the basket-shaped electrode assembly.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: June 8, 2004
    Assignee: Biosense Webster, Inc.
    Inventors: Kristine B. Fuimaono, Maria G. Rangel, Dipen Shah
  • Publication number: 20030114846
    Abstract: An improved basket catheter is provided that is particularly useful for mapping the heart. The catheter comprises an elongated catheter body having proximal and distal ends and at least one lumen therethrough. A basket-shaped electrode assembly is mounted at the distal end of the catheter body. The basket assembly has proximal and distal ends and comprises a plurality of spines connected at their proximal and distal ends. Each spine comprises at least one electrode. The basket assembly has an expanded arrangement wherein the spines bow radially outwardly and a collapsed arrangement wherein the spines are arranged generally along the axis of the catheter body. The catheter further comprises a distal location sensor mounted at or near the distal end of the basket-shaped electrode assembly and a proximal location sensor mounted at or near the proximal end of the basket-shaped electrode assembly.
    Type: Application
    Filed: December 14, 2001
    Publication date: June 19, 2003
    Inventors: Kristine B. Fuimaono, Maria G. Rangel, Dipen Shah
  • Publication number: 20020091330
    Abstract: Computer implemented methods and associated systems are disclosed for processing electrical signals recorded from the heart and, more particularly, for objectively deriving sub-components and comparing signals and their sub-components.
    Type: Application
    Filed: November 7, 2001
    Publication date: July 11, 2002
    Applicant: C.R. Bard, Inc.
    Inventors: David MacAdam, Paul Wang, Shawn Yang, Dipen Shah