Patents by Inventor Hendrik Lambert

Hendrik Lambert 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: 11504183
    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: Grant
    Filed: November 13, 2018
    Date of Patent: November 22, 2022
    Assignee: St. Jude Medical International Holdings S.A R. L.
    Inventors: Giovanni Leo, Hendrik Lambert
  • Patent number: 10492846
    Abstract: A method and device for determining the transmurality and/or continuity of an isolation line formed by a plurality of point contact ablations. In one embodiment, a method for determining the size of a lesion (width, depth and/or volume) is disclosed, based on contact force of the ablation head with the target tissue, and an energization parameter that quantifies the energy delivered to the target tissue during the duration time of the lesion formation. In another embodiment, the sequential nature (sequence in time and space) of the ablation line formation is tracked and quantified in a quantity herein referred to as the “jump index,” and used in conjunction with the lesion size information to determine the probability of a gap later forming in the isolation line.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: December 3, 2019
    Assignee: St. Jude Medical International Holding S.á r.l.
    Inventors: Hendrik Lambert, Stuart J. Olstad, Olivier B. Fremont
  • Publication number: 20190110835
    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: November 13, 2018
    Publication date: April 18, 2019
    Inventors: Giovanni Leo, Hendrik Lambert
  • Patent number: 10159528
    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: Grant
    Filed: July 14, 2016
    Date of Patent: December 25, 2018
    Assignee: ST JUDE MEDICAL INTERNATIONAL HOLDING S.À R.L.
    Inventors: Giovanni Leo, Hendrik Lambert
  • 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: 20170128119
    Abstract: A method and device for determining the transmurality and/or continuity of an isolation line formed by a plurality of point contact ablations. In one embodiment, a method for determining the size of a lesion (width, depth and/or volume) is disclosed, based on contact force of the ablation head with the target tissue, and an energization parameter that quantifies the energy delivered to the target tissue during the duration time of the lesion formation. In another embodiment, the sequential nature (sequence in time and space) of the ablation line formation is tracked and quantified in a quantity herein referred to as the “jump index,” and used in conjunction with the lesion size information to determine the probability of a gap later forming in the isolation line.
    Type: Application
    Filed: November 15, 2016
    Publication date: May 11, 2017
    Inventors: Hendrik Lambert, Stuart J. Olstad, Olivier B. Fremont
  • 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: 9393068
    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: Grant
    Filed: December 27, 2011
    Date of Patent: July 19, 2016
    Assignee: ST. JUDE MEDICAL INTERNATIONAL HOLDING S.À R.L.
    Inventors: Giovanni Leo, Hendrik Lambert
  • Publication number: 20160095653
    Abstract: A method and device for determining the transmurality and/or continuity of an isolation line formed by a plurality of point contact ablations. In one embodiment, a method for determining the size of a lesion (width, depth and/or volume) is disclosed, based on contact force of the ablation head with the target tissue, and an energization parameter that quantifies the energy delivered to the target tissue during the duration time of the lesion formation. In another embodiment, the sequential nature (sequence in time and space) of the ablation line formation is tracked and quantified in a quantity herein referred to as the “jump index,” and used in conjunction with the lesion size information to determine the probability of a gap later forming in the isolation line.
    Type: Application
    Filed: October 6, 2015
    Publication date: April 7, 2016
    Inventors: Hendrik Lambert, Stuart J. Olstad, Olivier B. Fremont
  • 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
  • Patent number: 9149327
    Abstract: A method and device for determining the transmuriality and/or continuity of an isolation line formed by a plurality of point contact ablations. In one embodiment, a method for determining the size of a lesion (width, depth and/or volume) is disclosed, based on contact force of the ablation head with the target tissue, and an energization parameter that quantifies the energy delivered to the target tissue during the duration time of the lesion formation. In another embodiment, the sequential nature (sequence in time and space) of the ablation line formation is tracked and quantified in a quantity herein referred to as the “jump index,” and used in conjunction with the lesion size information to determine the probability of a gap later forming in the isolation line.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: October 6, 2015
    Assignee: St. Jude Medical Luxembourg Holding S.À.R.L.
    Inventors: Hendrik Lambert, Stuart J. Olstad, Olivier B. Fremont
  • 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
  • Publication number: 20120209260
    Abstract: A method and device for determining the transmuriality and/or continuity of an isolation line formed by a plurality of point contact ablations. In one embodiment, a method for determining the size of a lesion (width, depth and/or volume) is disclosed, based on contact force of the ablation head with the target tissue, and an energization parameter that quantifies the energy delivered to the target tissue during the duration time of the lesion formation. In another embodiment, the sequential nature (sequence in time and space) of the ablation line formation is tracked and quantified in a quantity herein referred to as the “jump index,” and used in conjunction with the lesion size information to determine the probability of a gap later forming in the isolation line.
    Type: Application
    Filed: December 27, 2011
    Publication date: August 16, 2012
    Applicant: ENDOSENSE SA
    Inventors: Hendrik Lambert, Stuart J. Olstad, Olivier B. Fremont
  • Publication number: 20060073455
    Abstract: A system comprising a computer and a software module residing in computer memory, where the software module is operable to provide a virtual model of a medical device and to simulate a medical procedure involving the virtual model of the medical device. The virtual model of the medical device includes medical device design parameters. The system also includes a computer interface operable to change design parameters of the virtual model of the medical device in response to simulation of the virtual model in the medical procedure.
    Type: Application
    Filed: September 30, 2004
    Publication date: April 6, 2006
    Inventors: Hans Buyl, Hendrik Lambert, Douglas Lang