Patents by Inventor Ellen Harfield
Ellen Harfield 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: 20240090939Abstract: A method and apparatus are disclosed for providing forward fluid delivery through an electrosurgical device, while avoiding coring when energy is delivered to the electrosurgical device. The device has a distal face defining an opening, with the distal face including at least one cutting portion and at least one non-cutting portion. An embodiment of the electrosurgical device for puncturing tissue includes an elongate member defining a lumen for fluid; a distal portion including an electrode and the distal face which defines at least one aperture. The portion of the at least one cutting portion defines a leading portion partially surrounding a circumference of the at least one aperture wherein the outer diameter of the at least one of the distal portion of the electrosurgical device or the electrode decreases towards a distal tip of the electrosurgical device.Type: ApplicationFiled: December 1, 2023Publication date: March 21, 2024Inventors: Gareth Davies, John Paul Urbanski, Ellen Harfield, Mahmood Mirza, Yun Uhm, Linus Leung, Ferryl Alley
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Publication number: 20220000537Abstract: A method and apparatus or system are disclosed for a procedure with minimal or no fluoroscopy, for example an electrosurgical procedure, and which uses a three dimensional mapping system. The procedure typically involves electrical measurement of the electrode of a needle to determine its position. Some embodiments further include intracardiac echocardiography (ICE) for tracking devices. The apparatus includes a needle with a tip electrode, an electroanatomical mapping (EAM) system, and an electrical generator, wherein a switching device is used to restrictively electrically connect the needle to only one of the mapping system or generator at a given time.Type: ApplicationFiled: September 21, 2021Publication date: January 6, 2022Inventors: Gareth Davies, Ellen Harfield, Rodney Horton, David Wells, Jason Woo
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Patent number: 11147614Abstract: A method and apparatus are disclosed for providing forward fluid delivery through an energy delivery device that avoids coring when it delivers energy to a tissue. The device has a distal face defining an opening, with the distal face including at least one electrically exposed portion and at least one electrically insulated portion. An embodiment of the energy delivery device includes an elongate member defining a lumen structured to receive a fluid, and a distal face defining an aperture in communication with the lumen. The distal face includes an electrically exposed conductive portion and an electrically insulated portion. The electrically exposed conductive portion is configured such that the energy it delivers while the energy delivery device is advanced into a tissue punctures the tissue without the tissue substantially occluding the lumen and without creating embolic particles.Type: GrantFiled: July 15, 2020Date of Patent: October 19, 2021Assignee: Baylis Medical Company Inc.Inventors: Gareth Davies, John Paul Urbanski, Mahmood Mirza, Ellen Harfield
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Patent number: 11020173Abstract: A method and apparatus are disclosed for providing forward fluid delivery through an electrosurgical device, while avoiding coring when energy is delivered to the electrosurgical device. The device has a distal face defining an opening, with the distal face including at least one cutting portion and at least one non-cutting portion. An embodiment of the electrosurgical device for puncturing tissue includes an elongate member defining a lumen for receiving a fluid; a distal face defining at least one aperture; and the distal face including at least one cutting portion and at least one non-cutting portion cooperating to produce an elongated cut in a tissue when electrical energy is delivered to the distal face while avoiding coring of the tissue.Type: GrantFiled: September 12, 2016Date of Patent: June 1, 2021Assignee: Baylis Medical Company Inc.Inventors: Gareth Davies, John Paul Urbanski, Ellen Harfield, Mahmood Mirza, Yun Uhm, Linus Leung, Ferryl Alley
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Publication number: 20200345410Abstract: A method and apparatus are disclosed for providing forward fluid delivery through an energy delivery device that avoids coring when it delivers energy to a tissue. The device has a distal face defining an opening, with the distal face including at least one electrically exposed portion and at least one electrically insulated portion. An embodiment of the energy delivery device includes an elongate member defining a lumen structured to receive a fluid, and a distal face defining an aperture in communication with the lumen. The distal face includes an electrically exposed conductive portion and an electrically insulated portion. The electrically exposed conductive portion is configured such that the energy it delivers while the energy delivery device is advanced into a tissue punctures the tissue without the tissue substantially occluding the lumen and without creating embolic particles.Type: ApplicationFiled: July 15, 2020Publication date: November 5, 2020Inventors: Gareth Davies, John Paul Urbanski, Mahmood Mirza, Ellen Harfield
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Patent number: 10751115Abstract: A method and apparatus are disclosed for providing forward fluid delivery through an energy delivery device that avoids coring when it delivers energy to a tissue. The device has a distal face defining an opening, with the distal face including at least one electrically exposed portion and at least one electrically insulated portion. An embodiment of the energy delivery device includes an elongate member defining a lumen structured to receive a fluid, and a distal face defining an aperture in communication with the lumen. The distal face includes an electrically exposed conductive portion and an electrically insulated portion. The electrically exposed conductive portion is configured such that the energy it delivers while the energy delivery device is advanced into a tissue punctures the tissue without the tissue substantially occluding the lumen and without creating embolic particles.Type: GrantFiled: September 10, 2015Date of Patent: August 25, 2020Assignee: Baylis Medical Company Inc.Inventors: Gareth Davies, John Paul Urbanski, Mahmood Mirza, Ellen Harfield
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Publication number: 20190274754Abstract: A method and apparatus are disclosed for providing forward fluid delivery through an electrosurgical device, while avoiding coring when energy is delivered to the electrosurgical device. The device has a distal face defining an opening, with the distal face including at least one cutting portion and at least one non-cutting portion. An embodiment of the electrosurgical device for puncturing tissue includes an elongate member defining a lumen for fluid; a distal portion including an electrode and the distal face which defines at least one aperture. The portion of the at least one cutting portion defines a leading portion partially surrounding a circumference of the at least one aperture wherein the outer diameter of the at least one of the distal portion of the electrosurgical device or the electrode decreases towards a distal tip of the electrosurgical device.Type: ApplicationFiled: May 27, 2019Publication date: September 12, 2019Inventors: Gareth Davies, John Paul Urbanski, Ellen Harfield, Mahmood Mirza, Yun Uhm, Linus Leung, Ferryl Alley
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Publication number: 20170360498Abstract: A method and apparatus or system are disclosed for a procedure with minimal or no fluoroscopy, for example an electrosurgical procedure, and which uses a three dimensional mapping system. The procedure typically involves electrical measurement of the electrode of a needle to determine its position. Some embodiments further include intracardiac echocardiography (ICE) for tracking devices. The apparatus includes a needle with a tip electrode, an electroanatomical mapping (EAM) system, and an electrical generator, wherein a switching device is used to restrictively electrically connect the needle to only one of the mapping system or generator at a given time.Type: ApplicationFiled: December 3, 2015Publication date: December 21, 2017Inventors: Gareth Davies, Ellen Harfield, Rodney Horton, David Wells, Jason Woo
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Publication number: 20160374751Abstract: A method and apparatus are disclosed for providing forward fluid delivery through an electrosurgical device, while avoiding coring when energy is delivered to the electrosurgical device. The device has a distal face defining an opening, with the distal face including at least one cutting portion and at least one non-cutting portion. An embodiment of the electrosurgical device for puncturing tissue includes an elongate member defining a lumen for receiving a fluid; a distal face defining at least one aperture; and the distal face including at least one cutting portion and at least one non-cutting portion cooperating to produce an elongated cut in a tissue when electrical energy is delivered to the distal face while avoiding coring of the tissue.Type: ApplicationFiled: September 12, 2016Publication date: December 29, 2016Inventors: Gareth Davies, John Paul Urbanski, Ellen Harfield, Mahmood Mirza, Yun Uhm, Linus Leung, Ferryl Alley
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Patent number: D662588Type: GrantFiled: June 22, 2011Date of Patent: June 26, 2012Assignee: Baylis Medical Company Inc.Inventors: Gareth Davies, Ellen Harfield, Mahmood Mirza
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Patent number: D683016Type: GrantFiled: December 1, 2011Date of Patent: May 21, 2013Assignee: Baylis Medical Company IncInventors: Mahmood Mirza, Ellen Harfield, John Paul Urbanski, Gareth Davies
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Patent number: D683452Type: GrantFiled: June 13, 2012Date of Patent: May 28, 2013Assignee: Baylis Medical Company Inc.Inventors: Gareth Davies, Ellen Harfield, Mahmood Mirza