Patents by Inventor Stephen W. Sagon
Stephen W. Sagon 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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Patent number: 9033961Abstract: Methods and instruments are disclosed for creating lesions in tissue, especially cardiac tissue, for treatment of arrhythmias and the like, by employing an elastic balloon and an energy emitter, which is independently positionable within the lumen of the instrument and adapted to project a series of spots of ablative energy through a transmissive region of the balloon to a target tissue site. The energy emitter preferably is configured such the spots of energy result in a series of lesions formed in the target tissue region when the emitter is activated, the lesions having an average area ranging from about 5 mm2 to about 100 mm2.Type: GrantFiled: April 14, 2009Date of Patent: May 19, 2015Assignee: CARDIOFOCUS, INC.Inventors: Gerald Melsky, Stephen W. Sagon, Alfred Stancampiano, Jeffrey M. Arnold, Lincoln S. Baxter
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Patent number: 9028486Abstract: Embodiments described herein relate to methods of using a catheter having a braided conductive member. One embodiment relates to a method for treating a condition of a patient that involves contacting an exterior wall of a blood vessel with the braided conductive member. Another embodiment relates to a method that involves contacting a wall of a blood vessel with the braided conductive member and controlling energy delivery to the braided conductive member based on at least one sensed temperature.Type: GrantFiled: March 7, 2012Date of Patent: May 12, 2015Assignee: Boston Scientific Scimed Inc.Inventors: Russell F. Collins, Gary S. Falwell, Eric A. Bene, Steven J. Burns, Denyse M. Collins, Charles A. Gibson, Ding Sheng He, Paul E. LeClair, Donald F. Patterson, Stephen W. Sagon, Pierre Jais
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Patent number: 8900219Abstract: Systems for visualizing cardiac tissue during an ablation procedure are provided. In general, the systems include an imaging module configured to measure absorbance data at first and second wavelengths wherein the ratio of these absorbance values identifies the nature of the tissue (e.g., lesion, de novo tissue, etc.). The imaging module can also include a video system having at least two chips with corresponding bandpass filters centered at the first and second target wavelengths. The system can also include a processor and/or video monitor for combining the images produced by the various chips, determining treated and non-treated tissue based on the ratio of absorbance values at the target wavelengths, and displaying images of the treatment area. Methods of visualizing cardiac treatment areas during ablation procedures are also provided herein.Type: GrantFiled: April 14, 2009Date of Patent: December 2, 2014Assignee: Cardiofocus, Inc.Inventors: Edward L. Sinofsky, Gerald Melsky, Stephen W. Sagon, Norman E. Farr
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Publication number: 20120165815Abstract: Embodiments described herein relate to methods of using a catheter having a braided conductive member. One embodiment relates to a method for treating a condition of a patient that involves contacting an exterior wall of a blood vessel with the braided conductive member. Another embodiment relates to a method that involves contacting a wall of a blood vessel with the braided conductive member and controlling energy delivery to the braided conductive member based on at least one sensed temperature.Type: ApplicationFiled: March 7, 2012Publication date: June 28, 2012Applicant: C.R. Bard, Inc.Inventors: Russell F. Collins, Gary S. Falwell, Eric A. Bene, Steven J. Burns, Denyse M. Collins, Charles A. Gibson, Ding Sheng He, Paul E. LeClair, Donald F. Patterson, Stephen W. Sagon, Pierre Jais
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Patent number: 8157796Abstract: An electrophysiology catheter and method of use for mapping and ablation procedures. The catheter includes a braided conductive member at its distal end that can be radially expanded. The catheter can be used in endocardial and epicardial mapping and ablation procedures.Type: GrantFiled: October 26, 2007Date of Patent: April 17, 2012Assignee: C.R. Bard, Inc.Inventors: Russell F. Collins, Gary S. Falwell, Eric A. Bene, Steven J. Burns, Denyse M. Collins, Charles A. Gibson, Ding Sheng He, Paul E. LeClair, Donald F. Patterson, Stephen W. Sagon, Pierre Jais
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Publication number: 20110082452Abstract: A cardiac tissue ablation system according to one embodiment includes an elongate catheter configured to deliver a distal end thereof to a patient's heart and an expandable member formed at the distal portion of the catheter. The expandable member has an elastic portion configured to conform to the shape of a target tissue region upon expansion. The system further includes an energy emitter movably disposed within a lumen of the catheter. The energy emitter is configured to deliver radiant ablative energy to the target tissue region. The system further includes a controller that includes a safety shut-off feature for automatically shutting off power to the energy emitter when a prescribed event occurs resulting in power to the energy emitter being stopped.Type: ApplicationFiled: October 1, 2010Publication date: April 7, 2011Applicant: CardioFocus, Inc.Inventors: Gerald Melsky, Stephen W. Sagon
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Publication number: 20090326320Abstract: Systems for visualizing cardiac tissue during an ablation procedure are provided. In general, the systems include an imaging module configured to measure absorbance data at first and second wavelengths wherein the ratio of these absorbance values identifies the nature of the tissue (e.g., lesion, de novo tissue, etc.). The imaging module can also include a video system having at least two chips with corresponding bandpass filters centered at the first and second target wavelengths. The system can also include a processor and/or video monitor for combining the images produced by the various chips, determining treated and non-treated tissue based on the ratio of absorbance values at the target wavelengths, and displaying images of the treatment area. Methods of visualizing cardiac treatment areas during ablation procedures are also provided herein.Type: ApplicationFiled: April 14, 2009Publication date: December 31, 2009Inventors: Edward L. Sinofsky, Gerald Melsky, Stephen W. Sagon, Norman E. Farr
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Publication number: 20090299354Abstract: Methods and instruments are disclosed for creating lesions in tissue, especially cardiac tissue, for treatment of arrhythmias and the like, by employing an elastic balloon and an energy emitter, which is independently positionable within the lumen of the instrument and adapted to project a series of spots of ablative energy through a transmissive region of the balloon to a target tissue site. The energy emitter preferably is configured such the spots of energy result in a series of lesions formed in the target tissue region when the emitter is activated, the lesions having an average area ranging from about 5 mm2 to about 100 mm2.Type: ApplicationFiled: April 14, 2009Publication date: December 3, 2009Inventors: Gerald Melsky, Stephen W. Sagon, Alfred Stancampiano, Jeffrey M. Arnold, Lincoln S. Baxter
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Patent number: 7306594Abstract: An electrophysiology catheter and method of use for mapping and ablation procedures. The catheter includes a braided conductive member at its distal end that can be radially expanded. The catheter can be used in endocardial and epicardial mapping and ablation procedures.Type: GrantFiled: September 13, 2004Date of Patent: December 11, 2007Assignee: C.R. Bard, Inc.Inventors: Russell F. Collins, Gary S. Falwell, Eric A. Bene, Steven J. Burns, Denyse M. Collins, Charles A. Gibson, Ding Sheng He, Paul E. LeClair, Donald F. Patterson, Stephen W. Sagon, Pierre Jais
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Patent number: 6941166Abstract: Methods for conducting an electrophysiology procedure using a programmed machine are described, including methods for managing discrete data capture requests received throughout the course of an electrophysiology procedure and for discretizing the display of independent data capture events that occur during the course of the electrophysiology procedure. These methods enable an operator to review location maps of sites visited during the course of a procedure and to review data from discrete moments in the procedure and to play back data over a sequence of times throughout the procedure, one moment at a time. The invention further includes software constructs that enable data management.Type: GrantFiled: August 30, 2001Date of Patent: September 6, 2005Assignee: C.R. Bard, Inc.Inventors: David P. MacAdam, Stephen W. Sagon
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Patent number: 6837886Abstract: An electrophysiology catheter and method of use for mapping and ablation procedures. The catheter includes a braided conductive member at its distal end that can be radially expanded. The catheter can be used in endocardial and epicardial mapping and ablation procedures.Type: GrantFiled: April 27, 2001Date of Patent: January 4, 2005Assignee: C.R. Bard, Inc.Inventors: Russell F. Collins, Gary S. Falwell, Eric A. Bene, Steven J. Burns, Denyse M. Collins, Charles A. Gibson, Ding Sheng He, Paul E. LeClair, Donald F. Patterson, Stephen W. Sagon, Pierre Jais
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Publication number: 20040092806Abstract: Catheter for mapping and/or ablation, and methods of using the same. According to one embodiment, catheter includes a metallic cap having a plurality of apertures and at least one electrode disposed in each aperture of the plurality of apertures. According to another embodiment, the catheter includes a non-conductive cap having a plurality of apertures and at least one electrode disposed in each aperture of the plurality of apertures. Electrodes may be paired, arranged along the length of the cap, or circumferentially arranged on the cap, according to various embodiments. According to a further embodiment, a method for treating a condition of a heart includes placing a catheter inside the heart, mapping a region of the heart using mapping electrodes on the catheter, and ablating using an ablation electrode disposed about the mapping electrodes of the catheter.Type: ApplicationFiled: December 12, 2003Publication date: May 13, 2004Inventors: Stephen W Sagon, Charles E Brown, Charles A Gibson, David MacAdam, Donald F Patterson, Amedeo J Chiavetta
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Publication number: 20020107511Abstract: An electrophysiology catheter and method of use for mapping and ablation procedures. The catheter includes a braided conductive member at its distal end that can be radially expanded. The catheter can be used in endocardial and epicardial mapping and ablation procedures.Type: ApplicationFiled: April 27, 2001Publication date: August 8, 2002Inventors: Russell F. Collins, Gary S. Falwell, Eric A. Bene, Steven J. Burns, Denyse M. Collins, Charles A. Gibson, Ding Sheng He, Paul E. LeClair, Donald F. Patterson, Stephen W. Sagon, Pierre Jais
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Publication number: 20020065459Abstract: Methods for conducting an electrophysiology procedure using a programmed machine are described, including methods for managing discrete data capture requests received throughout the course of an electrophysiology procedure and for discretizing the display of independent data capture events that occur during the course of the electrophysiology procedure. These methods enable an operator to review location maps of sites visited during the course of a procedure and to review data from discrete moments in the procedure and to play back data over a sequence of times throughout the procedure, one moment at a time. The invention further includes software constructs that enable data management.Type: ApplicationFiled: August 30, 2001Publication date: May 30, 2002Inventors: David P. MacAdam, Stephen W. Sagon