Patents by Inventor Robert A. Dixon

Robert A. Dixon 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: 11723772
    Abstract: An implantable prosthetic device such as might be used to treat poor function of a diseased heart valve in a medical patient includes a body portion and an anchor portion including a plurality of paddles. Clasps attached to the paddles include fixed arms and moveable arms operable to secure the device to the patient's native valve leaflets.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: August 15, 2023
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Eric Robert Dixon, Jensen Chen, Guillermo W. Moratorio, Sergio Delgado
  • Publication number: 20230240850
    Abstract: A valve repair device includes a first paddle, a second paddle, a spacer, a first gripping member, and a second gripping member. The first paddle and the second paddle are configured to move between a closed position and an open position. The spacer is disposed between the first paddle and the second paddle. The first gripping member is disposed between the first paddle and the spacer. The second gripping member is disposed between the second paddle and the spacer. The first paddle and the first gripping member are configured to capture a first native valve leaflet. The second paddle and the second gripping member are configured to capture a second native valve leaflet.
    Type: Application
    Filed: March 8, 2023
    Publication date: August 3, 2023
    Inventors: Asher L. Metchik, Gregory Scott Tyler, II, Matthew T. Winston, Sergio Delgado, Lauren R. Freschauf, Eric Robert Dixon, Alexander J. Siegel
  • Patent number: 11612485
    Abstract: A system for implanting a repair device onto a native valve of a natural heart to repair the native valve of a patient during a non-open-heart procedure. The system includes a delivery catheter and a valve repair device. The valve repair device is disposed inside the delivery catheter. The valve repair device includes a pair of paddles and a pair of gripping members. The pair of paddles are movable between an open position and a closed position. The pair of paddles and the pair of gripping members are configured to secure the valve repair device to leaflets of the native valve. The pair of paddles are compressed inside the delivery catheter. Each paddle of the pair of paddles is configured to expand upon exiting the delivery catheter to increase the surface area of each paddle.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: March 28, 2023
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Asher L. Metchik, Gregory Scott Tyler, II, Matthew T. Winston, Sergio Delgado, Lauren R. Freschauf, Eric Robert Dixon, Alexander J. Siegel
  • Patent number: 11602431
    Abstract: An exemplary valve repair device for repairing a native valve of a patient includes a coaption element, a pair of paddles, and barb portions. The barb portions extend directly from at least one of the coaption element and the pair of paddles.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: March 14, 2023
    Assignee: Edwards Lifesciences Corporation
    Inventors: Sergio Delgado, Eric Robert Dixon, David M. Taylor, Asher L. Metchik, Matthew T. Winston, Gregory Scott Tyler, II, Lauren R. Freschauf, Alexander J. Siegel
  • Publication number: 20230014540
    Abstract: An implant catheter has a highly flexible portion. The highly flexible portion includes a liner positioned adjacent to a catheter coil. Some implementations of the implant catheter include sections where a portion of the coil layer is free from all material of the outer jacket. In some implementations, a portion of a layer internal to the catheter is omitted. Some implementations include a coil formed form wire with a self-aligning cross-section.
    Type: Application
    Filed: September 28, 2022
    Publication date: January 19, 2023
    Inventors: Asher L. Metchik, Eric Robert Dixon
  • Patent number: 11547564
    Abstract: A valve repair device for repairing a native valve of a patient includes a pair of paddles and a pair of gripping members. The pair of paddles are movable between an open position and a closed position. Each paddle comprises a metal loop that is moveable from a compressed condition where each metal loop has a first width to an expanded condition where each loop has a second width that is greater than the first width. The pair of gripping members are configured to attach to the native valve of the patient.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: January 10, 2023
    Assignee: Edwards Lifesciences Corporation
    Inventors: Asher L. Metchik, Sergio Delgado, Alexander J. Siegel, Eric Robert Dixon, Lauren R. Freschauf, Matthew T. Winston, Gregory Scott Tyler, II
  • Publication number: 20220349869
    Abstract: A scalable, real-time, label-free, electrode- or optical-based cell monitoring system for integration into a cell culture incubator is described herein. An example system includes (1) cell culture consumables with integrated electrodes and/or optics for growing and monitoring cells, (2) incubator trays for consumable organization and recording, and (3) a system console, external to the incubator, for connecting multiple incubator trays. Without perturbing the cell culture, the system is capable of monitoring multiple culture attributes for each cell culture consumable simultaneously. These attributes can include, but are not limited to, cell growth, proliferation, morphology, media pH, or media oxygen. The system can support multiple trays, which permits monitoring dozens to hundreds of consumables simultaneously, including a mixture of consumables of various sizes. In addition to monitoring adherent cells, the disclosed technology can be readily adapted for monitoring of cell suspensions.
    Type: Application
    Filed: January 27, 2020
    Publication date: November 3, 2022
    Inventors: Michael Antony CLEMENTS, Isaac Perry CLEMENTS, Thomas J. O'BRIEN, James David ROSS, Daniel Christopher MILLARD, Andrew WILLSIE, Edgar A. BROWN, Robert Dixon GRIER, Jr., Amanda Jervis PREYER, Denise Danielle SULLIVAN
  • Publication number: 20220346946
    Abstract: An implantable device includes an adjustable spacer and at least one anchor. The adjustable spacer is configured to be positioned between native heart valve leaflets to reduce regurgitation therebetween. The adjustable spacer can comprise a first side and a second side opposite the first side. Each side can be adjustable between a first width and a second width. Each side can be independently moved between the first width and the second width. The adjustable spacer can be made from a sponge material.
    Type: Application
    Filed: July 15, 2022
    Publication date: November 3, 2022
    Inventors: Michael D. Franklin, Matthew T. Winston, Lauren R. Freschauf, Eric Robert Dixon, Yoon Hee Kwon
  • Patent number: 11389297
    Abstract: An implantable prosthetic spacer device can include an inflatable spacer having a plurality of inflatable members and a frame, the frame comprising one or more anchors and one or more clasps. The inflatable spacer can be configured to be disposed between native leaflets of a heart. The implantable prosthetic spacer can be disposed in a symmetrical or an asymmetrical configuration. The inflatable spacers can be inflatable between an uninflated and an inflated configuration.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: July 19, 2022
    Assignee: Edwards Lifesciences Corporation
    Inventors: Michael D. Franklin, Matthew T. Winston, Lauren R. Freschauf, Eric Robert Dixon, Yoon Hee Kwon
  • Patent number: 11344415
    Abstract: An exemplary valve repair device for repairing a native valve of a patient includes: a coaption element formed from a strip of material; a pair of extension members; a pair of paddles formed from the strip of material and connected to the coaption element; and a cap attached to the paddles. The paddles are movable between an open position and a closed position, are disposed over the extension member, and are configured to attach to the native valve of the patient. Movement of the cap toward the coaption element causes the pair of paddles to move to the closed position, and movement of the cap away from the coaption element causes the pair of paddles to move to the open position. The cap has a retention body for receiving attachment portions of the extension members, a retaining nut, and a retaining bolt for securing the retaining nut.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: May 31, 2022
    Assignee: Edwards Lifesciences Corporation
    Inventors: Alex Philip McCann, Grant Matthew Stearns, Eric Robert Dixon, Yoon Hee Kwon
  • Publication number: 20220151773
    Abstract: An implantable prosthetic device includes a coaption portion, paddles, and clasps. The paddles are moveable from a closed position to an open position. The clasps are also moveable from an open position to a closed position. The implantable prosthetic device can be used to repair a native valve, such as a native mitral valve. Other embodiments are also described.
    Type: Application
    Filed: January 31, 2022
    Publication date: May 19, 2022
    Inventors: Eric Robert Dixon, Sergio Delgado
  • Publication number: 20220133470
    Abstract: An implantable prosthetic device such as might be used to treat poor function of a diseased heart valve in a medical patient includes a body portion and an anchor portion including a plurality of paddles. Clasps attached to the paddles include fixed arms and moveable arms operable to secure the device to the patient's native valve leaflets.
    Type: Application
    Filed: January 14, 2022
    Publication date: May 5, 2022
    Inventors: Eric Robert Dixon, Jensen Chen, Guillermo W. Moratorio, Sergio Delgado
  • Publication number: 20220117728
    Abstract: An device for treating a native valve includes a sealing element and an anchoring element. The sealing element is made from a braided mesh material. The sealing element is dimensioned to be deployed in an annulus of a native valve of a heart at a position between native valve leaflets to contact the native valve leaflets during ventricular systole to create a seal to prevent regurgitation of blood from the left ventricle to the left atrium. The sealing element is configured to both be radially expanded and radially reduced while at the position between the native valve leaflets. The anchoring element is adapted for deployment in the heart, the anchoring element coupled to the sealing element and configured to support the sealing element at the desired position between native valve leaflets.
    Type: Application
    Filed: October 29, 2021
    Publication date: April 21, 2022
    Inventors: Sergio Delgado, Lauren R. Freschauf, Eric Robert Dixon, Grant Matthew Stearns, Rachel Ann Gohres, Rachel Liat David Foreman, Alex Philip McCann, David M. Taylor
  • Patent number: 11298228
    Abstract: A system for implanting a repair device onto a native valve of a natural heart to repair the native valve of a patient during a non-open-heart procedure. The system includes a surgical a valve repair device for repairing a native valve of a patient including a pair of paddles, and a pair of gripping members. The paddles are movable between an open position and a closed position, in which the paddles are moved to the open position by moving a pivot point of each paddle in an outward direction and pivoting each of the paddles about the pivot point of the paddle. The paddles and the gripping members are configured to attach to the native valve of the patient when the paddles are in the closed position.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: April 12, 2022
    Assignee: Edwards Lifesciences Corporation
    Inventors: Asher L. Metchik, Gregory Scott Tyler, II, Matthew T. Winston, Sergio Delgado, Lauren R. Freschauf, Eric Robert Dixon, Alexander J. Siegel
  • Publication number: 20220096799
    Abstract: Disclosed herein are steerable catheter assemblies that utilize various mechanisms to accomplish independent control of catheter flex magnitude and catheter flex direction to provide improved steerability of an attached catheter. Some embodiments include a catheter with two or more pull wires that flex the catheter and a control handle coupled to the catheter. The control handle can include a direction control coupled to the two or more pull wires such that adjustment of the direction control adjusts a direction of catheter flex by the two or more pull wires, and the control handle can include a magnitude control coupled to the two or more pull wires such that adjustment of the magnitude control adjusts the magnitude of catheter flex.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 31, 2022
    Inventors: Bao Khuu, Matthew T. Winston, Asher L. Metchik, Eric Robert Dixon
  • Patent number: 11278409
    Abstract: A method of manufacturing a valve repair device for repairing a native valve of a patient includes: folding a strip of material formed from shape-memory alloy around a jig to form a coaption element and a pair of paddles connected to the coaption element, wherein the paddles are movable between an open position and a closed position and are configured to attach to the native valve of the patient; and heat treating the strip of material to shape-set the strip of material in the shape of the coaption element and paddles.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: March 22, 2022
    Assignee: Edwards Lifesciences Corporation
    Inventors: Alex Philip McCann, Grant Matthew Stearns, Eric Robert Dixon, Yoon Hee Kwon
  • Publication number: 20220071767
    Abstract: A method and system for implanting and repositioning an implantable device for a native valve of a patient's heart includes a delivery catheter, a collar, a coupler, and an actuation element. The actuation element extends through the delivery catheter and attaches to the device to open the device. The collar is connected to the device and the coupler is connected to the delivery catheter. The collar and coupler are tied together via one or more coupling tethers which can be used to reengage the device after an initial deployment.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Inventors: Eric Robert Dixon, Asher L. Metchik, Rachel Ann Gohres, Tam Van Nguyen, Grant Matthew Stearns, Gregory Scott Tyler, II, Daniel James Montoya, Rhayoung Kwon, Lauren R. Freschauf
  • Patent number: 11259927
    Abstract: A system for implanting a repair device onto a native valve of a natural heart to repair the native valve of a patient during a non-open-heart procedure. The system includes a surgical delivery instrument and a valve repair device. The surgical delivery instrument has at least one lumen. The valve repair device is configured to be delivered through the lumen of the surgical delivery instrument and to be attached to a native valve of a patient. The valve repair device includes a pair of paddles and a pair of gripping members. The paddles are movable between an open position and a closed position, and the paddles are configured to flex upon being attached to the native valve of a patient. The paddles and the gripping members are configured to attach to the native valve of the patient.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: March 1, 2022
    Assignee: Edwards Lifesciences Corporation
    Inventors: Asher L. Metchik, Gregory Scott Tyler, II, Matthew T. Winston, Sergio Delgado, Lauren R. Freschauf, Eric Robert Dixon, Alexander J. Siegel
  • Patent number: 11234823
    Abstract: An exemplary valve repair device for repairing a native valve of a patient includes: a coaption element; a pair of paddles connected to the coaption element; a first cover extending from a distal end of the device and covering at least a portion of the paddles; and a second cover extending from a proximal end of the device and covering at least a portion of the coaption element. The paddles are movable between an open position and a closed position and are configured to attach to the native valve of the patient.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: February 1, 2022
    Assignee: Edwards Lifesciences Corporation
    Inventors: Alex Philip McCann, Grant Matthew Stearns, Eric Robert Dixon, Yoon Hee Kwon
  • Patent number: 11234822
    Abstract: An implantable prosthetic device includes a coaption portion, paddles, and clasps. The paddles are moveable from a closed position to an open position. The clasps are also moveable from an open position to a closed position. The implantable prosthetic device can be used to repair a native valve, such as a native mitral valve. Other embodiments are also described.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: February 1, 2022
    Assignee: Edwards Lifesciences Corporation
    Inventors: Eric Robert Dixon, Sergio Delgado, Jensen Chen, Guillermo W. Moratorio, Hengchu Cao, Douglas Thomas Dominick