Patents by Inventor Robert Fishman
Robert Fishman 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: 11944770Abstract: An expandable introducer sheath with an interlock dilator. The present technology provides an expandable sheath with a step feature inside its distal opening, and a dilator with an interlock that includes a catch surface configured to engage with the step feature and resist further relative movement so that the body of the dilator is prevented from exiting the distal end of the expandable sheath. This interlocking engagement may allow the dilator to be used to extend and maintain tension on the expandable sheath during insertion into a patient, and then to be retracted from the expandable sheath by pulling the dilator in the opposite direction. The present technology also provides a dilator hub with a spring mechanism configured to achieve and maintain a desired tension on the expandable sheath and to prevent overextension of the expandable sheath when the dilator is being inserted into the expandable sheath.Type: GrantFiled: April 6, 2023Date of Patent: April 2, 2024Assignee: Abiomed, Inc.Inventors: Christopher N. Korkuch, Robert Fishman, Michael Thomas Finnegan, Charles DeLorenzo, Andrew Gentile, Anne Gabrielle McLoughlin, Robert Swierczek, Matthew D'Agostino, Jonathan Barry
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Patent number: 11911072Abstract: Systems and methods are provided for insertion of a medical device into a blood vessel. The system may include a sheath assembly with an introducer sheath and a variable size repositioning sheath. The variable size repositioning sheath may be configured to be adjustable in size in a radial direction and to be inserted into the blood vessel or an expandable introducer sheath. In some aspects, the system may include an intracardiac device such as a blood pump with an elongate catheter.Type: GrantFiled: April 21, 2020Date of Patent: February 27, 2024Assignee: ABIOMED, INC.Inventors: Glen Fantuzzi, Christopher Korkuch, Caitlyn Hastie, Robert Fishman, Akshay Ashok, John Modlish
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Publication number: 20240024628Abstract: A positioning device for maintaining positioning of an introducer hub relative to a repositioning sheath or catheter may be provided. The positioning devices may include a first coupler, a second coupler configured to be removably coupled to a portion of a repositioning sheath or catheter that is proximal to the first coupler, and a portion extending between the first coupler and the second coupler, the extension bridge configured to maintain a fixed axial distance between the introducer hub and a proximal end of the repositioning sheath or catheter. A flexible hinge may be incorporated, where a medical device would be configured to pass through the second coupler, the flexible hinge, and the first coupler.Type: ApplicationFiled: July 19, 2023Publication date: January 25, 2024Applicant: ABIOMED, Inc.Inventors: Jonathan Barry, Robert Swierczek, Anne McLoughlin, David Johnston, David Filipiak, Christopher Korkuch, Glen Fantuzzi, Robert Fishman, Brian Miley, William Lewis
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Publication number: 20230381455Abstract: The systems, methods, and devices that provide an expandable sheath assembly for insertion of an interventional medical device (e.g., an intracardiac heart pump) into a blood vessel through a vessel aperture. The assembly may have an elongate sheath body having a proximal end, a distal end, and a lumen extending from the proximal end to the distal end. The sheath body may have a first layer, wherein the first layer is a liner defining the lumen. The sheath body may have a second layer disposed over the first layer, wherein the second layer is a patterned structure. The sheath body may have a third layer disposed over the second layer. The elongate sheath body may include a slit through the second layer and the third layer, wherein the slit extends along at least a portion of the elongate sheath body. A first portion of the elongate sheath body may overlap a second portion of the elongate sheath body along the slit to form a fold.Type: ApplicationFiled: May 24, 2023Publication date: November 30, 2023Applicant: ABIOMED, Inc.Inventors: Glen R. Fantuzzi, Robert Fishman, Jonathan Barry, Anne Gabrielle McLoughlin
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Publication number: 20230364393Abstract: An expandable sheath body for a sheath assembly. The sheath body has a tubular frame having a lumen therein. The frame has interstices therein. The frame is expandable to a larger diameter and contractable to a smaller diameter, and also flexible. The sheath body has an inner liner formed over a surface of the lumen defined by the tubular frame and an outer liner formed over an exterior surface of the frame. The inner liner and an inner layer of a multilayer outer liner may be made of expanded polytetrafluoroethylene. The expanded polytetrafluoroethylene may be infused with silicone oil for increased lubricity.Type: ApplicationFiled: May 10, 2023Publication date: November 16, 2023Applicant: ABIOMED, Inc.Inventors: Mithun Rajaram, Robert Fishman, Christopher N. Korkuch, Charles Perkins
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Publication number: 20230347121Abstract: An expandable introducer sheath with an interlock dilator. The present technology provides an expandable sheath with a step feature inside its distal opening, and a dilator with an interlock that includes a catch surface configured to engage with the step feature and resist further relative movement so that the body of the dilator is prevented from exiting the distal end of the expandable sheath. This interlocking engagement may allow the dilator to be used to extend and maintain tension on the expandable sheath during insertion into a patient, and then to be retracted from the expandable sheath by pulling the dilator in the opposite direction. The present technology also provides a dilator hub with a spring mechanism configured to achieve and maintain a desired tension on the expandable sheath and to prevent overextension of the expandable sheath when the dilator is being inserted into the expandable sheath.Type: ApplicationFiled: April 6, 2023Publication date: November 2, 2023Applicant: ABIOMED, Inc.Inventors: Christopher N. Korkuch, Robert Fishman, Michael Thomas Finnegan, Charles DeLorenzo, Andrew Gentile, Anne Gabrielle McLoughlin, Robert Swierczek, Matthew D'Agostino, Jonathan Barry
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Patent number: 11660434Abstract: An expandable introducer sheath with an interlock dilator. The present technology provides an expandable sheath with a step feature inside its distal opening, and a dilator with an interlock that includes a catch surface configured to engage with the step feature and resist further relative movement so that the body of the dilator is prevented from exiting the distal end of the expandable sheath. This interlocking engagement may allow the dilator to be used to extend and maintain tension on the expandable sheath during insertion into a patient, and then to be retracted from the expandable sheath by pulling the dilator in the opposite direction. The present technology also provides a dilator hub with a spring mechanism configured to achieve and maintain a desired tension on the expandable sheath and to prevent overextension of the expandable sheath when the dilator is being inserted into the expandable sheath.Type: GrantFiled: February 2, 2021Date of Patent: May 30, 2023Assignee: ABIOMED, INC.Inventors: Christopher N. Korkuch, Robert Fishman, Michael Finnegan, Charles DeLorenzo, Andrew Gentile, Anne Gabrielle McLoughlin, Robert Swierczek, Matthew D'Agostino, Jonathan Barry
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Publication number: 20230158277Abstract: A persistent perfusion sheath assembly can be used for the passage of an intravascular medical device while maintain a flow passage in the vessel. The sheath assembly passes through an arteriotomy and can include a first lumen configured for the passage of a medical device, a second lumen configured to allow a flow of fluid from a location in the blood vessel upstream of the arteriotomy to a location downstream of the arteriotomy. The sheath assembly can further include a stylet, a sleeve or an additional sheath configured to selectively open and close the flow of blood between upstream and downstream of the arteriotomy. The sheath assembly can further include a closure device distal of the arteriotomy, the closure device configured to control blood flow through the arteriotomy.Type: ApplicationFiled: October 12, 2022Publication date: May 25, 2023Applicant: ABIOMED, INC.Inventors: Christopher Nason Korkuch, Caitlyn Hastie, Glen Robert Fantuzzi, Robert Fishman
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Publication number: 20230137633Abstract: Expandable introducer sheaths and associated laser cut frames for the insertion of a medical device into a blood vessel. In some examples, an expandable sheath may have a frame including a plurality of radial expansion bands and a plurality of connecting bridges for connecting adjacent radial expansion bands. The radial expansion bands are configured to accommodate radial expansion and the plurality of connecting bridges are configured to be longitudinally expandable and to impart column strength as a medical device (e.g., an intracardiac heart pump) is passed through the sheath, such as during insertion or removal of the medical device.Type: ApplicationFiled: October 26, 2022Publication date: May 4, 2023Applicant: ABIOMED, Inc.Inventors: Christopher Nason Korkuch, Jonathan Barry, Anne Gabrielle McLoughlin, Robert Kirkpatrick, Ying Xu, Glen R. Fantuzzi, Robert Fishman, Mithun Rajaram, Matthew D'Agostino
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Publication number: 20230085812Abstract: An introducer sheath for the insertion of a medical device into a blood vessel having an expandable sheath. The sheath has a length, a thickness, and proximal and distal ends. The expandable sheath has a frame extending longitudinally between the proximal and the distal ends, and having an exterior surface and an interior surface that forms an interior lumen along the length of the frame. The frame is configured to achieve an expanded state and a contracted state, the expanded state forming an expanded cross-section in the lumen for passing a medical device therethrough. The frame has a smooth coating about the exterior surface and protrusions extending into the lumen along the interior surface. The introducer sheath can be introduced into a patient in the contracted state, with the distal end of the introducer sheath prevented from moving in the proximal direction by an abutment against a dilator end surface.Type: ApplicationFiled: September 28, 2022Publication date: March 23, 2023Applicant: ABIOMED, Inc.Inventors: Christopher Nason Korkuch, Glen R. Fantuzzi, Alexander Ship, Robert Swierczek, Robert Fishman
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Patent number: 11517720Abstract: An introducer sheath for the insertion of a medical device into a blood vessel having an expandable sheath. The sheath has a length, a thickness, and proximal and distal ends. The expandable sheath has a frame extending longitudinally between the proximal and the distal ends, and having an exterior surface and an interior surface that forms an interior lumen along the length of the frame. The frame is configured to achieve an expanded state and a contracted state, the expanded state forming an expanded cross-section in the lumen for passing a medical device therethrough. The frame has a smooth coating about the exterior surface and protrusions extending into the lumen along the interior surface. The introducer sheath can be introduced into a patient in the contracted state, with the distal end of the introducer sheath prevented from moving in the proximal direction by an abutment against a dilator end surface.Type: GrantFiled: August 14, 2019Date of Patent: December 6, 2022Assignee: ABIOMED, INC.Inventors: Christopher Nason Korkuch, Glen R. Fantuzzi, Alexander Ship, Robert Swierczek, Robert Fishman
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Patent number: 11497894Abstract: A persistent perfusion sheath assembly can be used for the passage of an intravascular medical device while maintain a flow passage in the vessel. The sheath assembly passes through an arteriotomy and can include a first lumen configured for the passage of a medical device, a second lumen configured to allow a flow of fluid from a location in the blood vessel upstream of the arteriotomy to a location downstream of the arteriotomy. The sheath assembly can further include a stylet, a sleeve or an additional sheath configured to selectively open and close the flow of blood between upstream and downstream of the arteriotomy. The sheath assembly can further include a closure device distal of the arteriotomy, the closure device configured to control blood flow through the arteriotomy.Type: GrantFiled: December 20, 2019Date of Patent: November 15, 2022Assignee: ABIOMED, INC.Inventors: Christopher Nason Korkuch, Caitlyn Hastie, Glen Robert Fantuzzi, Robert Fishman
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Patent number: 11464963Abstract: Systems and methods for packaging an optical sensor assembly. An optical sensor assembly for use in a blood pump assembly comprises a visor affixed to a pump housing of the blood pump assembly. A support jacket is in contact with an inner surface of the visor, and defines a cavity in which an optical sensor is disposed. Silicone gel is introduced into the cavity, where it cures. Silicone gel within the cavity protects the optical sensor, and the support jacket prevents the overflowing of the gel and contamination of the visor.Type: GrantFiled: August 27, 2019Date of Patent: October 11, 2022Assignee: Abiomed, Inc.Inventors: Robert Fishman, Mithun Rajaram, Emmanuel Ilongo, Vladimir Gilman
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Publication number: 20210236783Abstract: An expandable introducer sheath with an interlock dilator. The present technology provides an expandable sheath with a step feature inside its distal opening, and a dilator with an interlock that includes a catch surface that is configured to engage with the step feature of the expandable sheath. When the step feature engages the catch surface, it resists further relative movement so that the body of the dilator is prevented from exiting the distal end of the expandable sheath. The nature of the interlocking engagement between the step feature and the catch surface allows the dilator to be used to extend and maintain tension on the expandable sheath during insertion into a patient, and then to be retracted from the expandable sheath by simply pulling the dilator in the opposite direction.Type: ApplicationFiled: February 2, 2021Publication date: August 5, 2021Applicant: ABIOMED, Inc.Inventors: Christopher N. Korkuch, Robert Fishman, Michael Finnegan, Charles DeLorenzo, Andrew Gentile, Anne Gabrielle McLoughlin, Robert Swierczek
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Publication number: 20200352155Abstract: Methods and systems of maintaining, evaluating, and providing therapy to a lung ex vivo. The methods and systems involve positioning the lung in an ex vivo perfusion circuit; circulating a perfusion fluid through the lung, the fluid entering the lung through a pulmonary artery interface and leaving the lung through a left atrial interface; and ventilating the lung by flowing a ventilation gas through a tracheal interface. Maintaining the lung for extended periods involves causing the lung to rebreath a captive volume of air, and reaching an equilibrium state between the perfusion fluid and the ventilation gas. Evaluating the gas exchange capability of the lung involves deoxygenating the perfusion fluid and measuring a time taken to reoxygenate the perfusion fluid by ventilating the lung with an oxygenation gas.Type: ApplicationFiled: July 30, 2020Publication date: November 12, 2020Inventors: Robert FISHMAN, Robert HAVENER, Ihab Abdel FATTAH, Anas ABDELAZIM, Scott NEWELL, Thomas H. BISHOP, Tamer I. KHAYAL, Stanley KYI, Ronald TAYLOR, JR., Doug HARRIOTT, Matthew DE REMER, Paul MURRAY, John SULLIVAN, Mark ANDERSON, Richard BRINGHAM, Michael VAN DRIEL, Waleed H. HASSANEIN
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Publication number: 20200330667Abstract: Systems and methods are provided for insertion of a medical device into a blood vessel. The system may include a sheath assembly with an introducer sheath and a variable size repositioning sheath. The variable size repositioning sheath may be configured to be adjustable in size in a radial direction and to be inserted into the blood vessel or an expandable introducer sheath. In some aspects, the system may include an intracardiac device such as a blood pump with an elongate catheter.Type: ApplicationFiled: April 21, 2020Publication date: October 22, 2020Inventors: Glen Fantuzzi, Christopher Korkuch, Caitlyn Hastie, Robert Fishman, Akshay Ashok, John Modlish
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Patent number: 10750738Abstract: Methods and systems of maintaining, evaluating, and providing therapy to a lung ex vivo. The methods and systems involve positioning the lung in an ex vivo perfusion circuit; circulating a perfusion fluid through the lung, the fluid entering the lung through a pulmonary artery interface and leaving the lung through a left atrial interface; and ventilating the lung by flowing a ventilation gas through a tracheal interface. Maintaining the lung for extended periods involves causing the lung to rebreath a captive volume of air, and reaching an equilibrium state between the perfusion fluid and the ventilation gas. Evaluating the gas exchange capability of the lung involves deoxygenating the perfusion fluid and measuring a time taken to reoxygenate the perfusion fluid by ventilating the lung with an oxygenation gas.Type: GrantFiled: April 8, 2008Date of Patent: August 25, 2020Assignee: TRANSMEDICS, INC.Inventors: Robert Fishman, Robert Havener, Ihab Abdel Fattah, Anas Abdelazim, Scott Newell, Thomas H. Bishop, Tamer Khayal, Stanley Kyi, Ron Taylor, Doug Harriott, Matthew De Remer, Paul Murray, John Sullivan, Mark Anderson, Richard Bringham, Michael Van Driel, Waleed Hassanein
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Publication number: 20200197668Abstract: A persistent perfusion sheath assembly can be used for the passage of an intravascular medical device while maintain a flow passage in the vessel. The sheath assembly passes through an arteriotomy and can include a first lumen configured for the passage of a medical device, a second lumen configured to allow a flow of fluid from a location in the blood vessel upstream of the arteriotomy to a location downstream of the arteriotomy. The sheath assembly can further include a stylet, a sleeve or an additional sheath configured to selectively open and close the flow of blood between upstream and downstream of the arteriotomy. The sheath assembly can further include a closure device distal of the arteriotomy, the closure device configured to control blood flow through the arteriotomy.Type: ApplicationFiled: December 20, 2019Publication date: June 25, 2020Inventors: Christopher Nason Korkuch, Caitlyn Hastie, Glen Robert Fantuzzi, Robert Fishman
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Publication number: 20200054861Abstract: An introducer sheath for the insertion of a medical device into a blood vessel having an expandable sheath. The sheath has a length, a thickness, and proximal and distal ends. The expandable sheath has a frame extending longitudinally between the proximal and the distal ends, and having an exterior surface and an interior surface that forms an interior lumen along the length of the frame. The frame is configured to achieve an expanded state and a contracted state, the expanded state forming an expanded cross-section in the lumen for passing a medical device therethrough. The frame has a smooth coating about the exterior surface and protrusions extending into the lumen along the interior surface. The introducer sheath can be introduced into a patient in the contracted state, with the distal end of the introducer sheath prevented from moving in the proximal direction by an abutment against a dilator end surface.Type: ApplicationFiled: August 14, 2019Publication date: February 20, 2020Inventors: Christopher Nason Korkuch, Glen R. Fantuzzi, Alexander Ship, Robert Swierczek, Robert Fishman
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Patent number: 9814230Abstract: Methods and systems of maintaining, evaluating, and providing therapy to a lung ex vivo. The methods and systems involve positioning the lung in an ex vivo perfusion circuit; circulating a perfusion fluid through the lung, the fluid entering the lung through a pulmonary artery interface and leaving the lung through a left atrial interface; and ventilating the lung by flowing a ventilation gas through a tracheal interface. Maintaining the lung for extended periods involves causing the lung to rebreath a captive volume of air, and reaching an equilibrium state between the perfusion fluid and the ventilation gas. Evaluating the gas exchange capability of the lung involves deoxygenating the perfusion fluid and measuring a time taken to reoxygenate the perfusion fluid by ventilating the lung with an oxygenation gas.Type: GrantFiled: April 8, 2008Date of Patent: November 14, 2017Assignee: TRANSMEDICS, INC.Inventors: Robert Fishman, Robert Havener, Ihab Abdel Fattah, Anas Abdelazim, Scott Newell, Tom Bishop, Tamer Khayal, Stanley Kyi, Ron Taylor, Doug Harriott, Matthew De Remer, Paul Murray, John Sullivan, Mark Anderson, Richard Bringham, Michael Van Driel, Waleed Hassanein