Patents by Inventor Dwight P. Morejohn

Dwight P. Morejohn 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: 11229479
    Abstract: Tissue treatment systems include an actuator handle assembly coupled with a clamp assembly having a first jaw mechanism and a second jaw mechanism. A first jaw mechanism includes a first flexible boot, a first flexible ablation member coupled with the first flexible boot, and a first rotatable jawbone disposed within the first flexible boot. A second jaw mechanism comprises a second flexible boot, a second flexible ablation member coupled with the second flexible boot, and a second rotatable jawbone disposed within the second flexible boot.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: January 25, 2022
    Assignee: AtriCure, Inc.
    Inventors: Dwight P. Morejohn, Tamer Ibrahim, Michael J. Banchieri, Ara Stephanian
  • Patent number: 11224481
    Abstract: Surgical systems and methods for administering an ablation treatment and other therapeutic or diagnostic protocols to a patient tissue involve a flexible stabilizer mechanism having an inner recess and an ablation mechanism coupled with the stabilizer mechanism.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: January 18, 2022
    Assignee: AtriCure, Inc.
    Inventors: Tamer Ibrahim, Dwight P. Morejohn, Michael J. Banchieri, Ara Stephanian, John D. Pavlidis, David K. Swanson
  • Publication number: 20210346030
    Abstract: An end effector positioning mechanism for a surgical device may include an articulation mechanism including a plurality of tiltable segments disposed generally in a longitudinal row between an elongated shaft of a surgical device and an end effector of the surgical device. Each of the plurality of segments may be generally in the form of a flattened disk. At least one of the segments may include a proximal surface and/or a distal surface that is substantially planar and is oriented substantially orthogonally with respect to a central axis of the articulation mechanism. At least one of the segments may include a proximal surface and/or a distal surface including two transversely oriented, generally planar surfaces that meet along a substantially diametric peak.
    Type: Application
    Filed: May 5, 2021
    Publication date: November 11, 2021
    Applicant: AtriCure, Inc.
    Inventors: Michael J. Banchieri, Matthew Monti, Tamer Ibrahim, Kenneth L. Miller, Ara M. Stephanian, Dwight P. Morejohn
  • Patent number: 10925724
    Abstract: Apparatus for endovascularly replacing a patient's heart valve, including: a replacement valve adapted to be delivered endovascularly to a vicinity of the heart valve; an expandable anchor adapted to be delivered endovascularly to the vicinity of the heart valve; and a lock mechanism configured to maintain a minimum amount of anchor expansion. The invention also includes a method for endovascularly replacing a patient's heart valve. In some embodiments the method includes the steps of: endovascularly delivering a replacement valve and an expandable anchor to a vicinity of the heart valve; expanding the anchor to a deployed configuration; and locking the anchor in the deployed configuration.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: February 23, 2021
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Amr Salahieh, Brian D. Brandt, Dwight P. Morejohn, Ulrich R. Haug, Jean-Pierre Dueri, Hans F. Valencia, Robert A. Geshlider
  • Patent number: 10828092
    Abstract: Cardiac ablation systems and methods of their use and manufacture involve an ablation mechanism, a stabilizer mechanism, and a cinching mechanism that urges the ablation mechanism toward a patient tissue. Embodiments encompass methods for administering epicardial and endocardial lesions, including box lesions and connecting lesions, to patient tissue.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: November 10, 2020
    Assignee: AtriCure, Inc.
    Inventors: Tamer Ibrahim, Michael J. Banchieri, Dwight P. Morejohn
  • Publication number: 20200229837
    Abstract: A method of positioning an occlusion clip proximate a left atrial appendage may include creating an access port that exposes the left atrial appendage; delivering a suction grasper via the access port, the suction grasper including opposing jaws each having a suction port; delivering an occlusion clip via the access port; grasping the left atrial appendage via the suction grasper by applying suction to an exterior of the left atrial appendage so that a portion of the left atrial appendage interposes the opposing jaws while suction is applied via the suction ports; repositioning the suction grasper to tension the left atrial appendage; delivering an occlusion clip via the access port; clamping a base of the left atrial appendage using the occlusion clip while the suction grasper applies tension to the left atrial appendage; and/or egressing the suction grasper via the access port.
    Type: Application
    Filed: January 23, 2020
    Publication date: July 23, 2020
    Applicant: AtriCure, Inc.
    Inventors: Tamer Ibrahim, Dwight P. Morejohn, Matthew Monti, Michael J. Banchieri, Ara M. Stephanian, Kenneth L. Miller
  • Patent number: 10716663
    Abstract: The present invention relates to apparatus and methods for performing valvuloplasty. In some embodiments, the apparatus includes an expandable braid valvuloplasty device. In some embodiments, the methods and apparatus may be used as an adjunct to percutaneous heart valve replacement. In some embodiments, the apparatus and methods may provide a medical practitioner with feedback, monitoring or measurement information, e.g., information relevant to percutaneous transcatheter heart valve replacement.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: July 21, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Amr Salahieh, Dwight P. Morejohn, Daniel K. Hildebrand, Tom Saul
  • Publication number: 20200222055
    Abstract: An example system for applying an occlusion clip to an anatomical structure may include a visualization tool configured to allow visualization of an anatomical structure using a scope; a clip applier configured to apply an occlusion clip on the anatomical structure; an introducer connectable to the clip applier and configured to aid in positioning the clip applier; and a positioner configured to apply at least one of a linear force and a torsional force to at least one of the clip applier and the clip.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 16, 2020
    Applicant: AtriCure, Inc.
    Inventors: Tamer Ibrahim, Dwight P. Morejohn, Matthew Monti, Kenneth L. Miller, Michael J. Banchieri, Brian Flores, Ara Stephanian, Kimberly Gray, Robert M. Trusty, Stefan Stefanov, Anthony Sticca
  • Publication number: 20200178764
    Abstract: Medical devices are disclosed. An example surgical spacemaking device may include an elongate element configured for insertion into a patient's body and including a distal end portion and an internal lumen, an inner element disposed generally coaxially within the internal lumen of the elongate element, an expandable element disposed generally circumferentially about a distal end portion of the inner element, and an actuator operable to reposition the expandable element between a contracted configuration and an expanded configuration. In the contracted configuration, the expandable element may have a relatively small diameter and, in the expanded configuration, the expandable element may have a relatively large diameter.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 11, 2020
    Applicant: AtriCure, Inc.
    Inventors: Tamer Ibrahim, Dwight P. Morejohn, Matthew Monti, Kenneth L. Miller, Michael J. Banchieri, Brian Flores, Ara Stephanian
  • Publication number: 20200000511
    Abstract: Tissue treatment systems include an actuator handle assembly coupled with a clamp assembly having a first jaw mechanism and a second jaw mechanism. A first jaw mechanism includes a first flexible boot, a first flexible ablation member coupled with the first flexible boot, and a first rotatable jawbone disposed within the first flexible boot. A second jaw mechanism comprises a second flexible boot, a second flexible ablation member coupled with the second flexible boot, and a second rotatable jawbone disposed within the second flexible boot.
    Type: Application
    Filed: July 17, 2019
    Publication date: January 2, 2020
    Applicant: AtriCure, Inc.
    Inventors: Dwight P. MOREJOHN, Tamer IBRAHIM, Michael J. BANCHIERI, Ara STEPHANIAN
  • Publication number: 20200000590
    Abstract: The invention includes methods of and apparatus for endovascularly replacing a heart valve of a patient. One aspect of the invention provides a method including the steps of endovascularly delivering a replacement valve and an expandable anchor to a vicinity of the heart valve in an unexpanded configuration; and applying an external non-hydraulically expanding or non-pneumatically expanding actuation force on the anchor to change the shape of the anchor, such as by applying proximally and/or distally directed force on the anchor using a releasable deployment tool to expand and contract the anchor or parts of the anchor. Another aspect of the invention provides an apparatus including a replacement valve; an anchor; and a deployment tool comprising a plurality of anchor actuation elements adapted to apply a non-hydraulically expanding or non-pneumatically expanding actuation force on the anchor to reshape the anchor.
    Type: Application
    Filed: August 13, 2019
    Publication date: January 2, 2020
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Amr Salahieh, Jean-Pierre Dueri, Hans F. Valencia, Brian D. Brandt, Dwight P. Morejohn, Claudio Argento, Tom Saul, Ulrich R. Haug
  • Patent number: 10478289
    Abstract: Apparatus for endovascularly replacing a patient's heart valve, including: a replacement valve adapted to be delivered endovascularly to a vicinity of the heart valve; an expandable anchor adapted to be delivered endovascularly to the vicinity of the heart valve; and a lock mechanism configured to maintain a minimum amount of anchor expansion. The invention also includes a method for endovascularly replacing a patient's heart valve. In some embodiments the method includes the steps of: endovascularly delivering a replacement valve and an expandable anchor to a vicinity of the heart valve; expanding the anchor to a deployed configuration; and locking the anchor in the deployed configuration.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: November 19, 2019
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Amr Salahieh, Brian D. Brandt, Dwight P. Morejohn, Ulrich R. Haug, Jean-Pierre Dueri, Hans F. Valencia, Robert A. Geshlider
  • Publication number: 20190343503
    Abstract: Organ manipulation devices for atraumatically grasping the surface of an organ and repositioning the organ to allow access to a location on the organ that would otherwise be substantially inaccessible. Methods of accessing a beating heart, retracting the heart using an organ manipulation apparatus, and stabilizing a surgical target area with a stabilizer. Both the organ manipulator and stabilizer are fixed to a stationary object which may be a sternal retractor. A system for performing beating heart coronary artery bypass grafting includes a sternal retractor, organ manipulator and stabilizer.
    Type: Application
    Filed: July 24, 2019
    Publication date: November 14, 2019
    Applicant: MAQUET CARDIOVASCULAR LLC
    Inventors: Harry Leonard GREEN, II, Jon M. TANAKA, Edward A. PINEDA, Dwight P. MOREJOHN, Robert MOSLEY, Joshua WALLIN, Iris Leon CORBIN
  • Patent number: 10426608
    Abstract: A replacement heart valve assembly including an expandable anchor having a skirt region, a lip region, and a groove region therebetween and a replacement valve disposed within the expandable anchor and engaged with the groove region of the expandable anchor.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: October 1, 2019
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Amr Salahieh, Brian D. Brandt, Dwight P. Morejohn, Ulrich R. Haug, Jean-Pierre Dueri, Hans F. Valencia, Robert A. Geshlider, Jeff A. Krolik
  • Patent number: 10413412
    Abstract: The invention includes methods of and apparatus for endovascularly replacing a heart valve of a patient. One aspect of the invention provides a method including the steps of endovascularly delivering a replacement valve and an expandable anchor to a vicinity of the heart valve in an unexpanded configuration; and applying an external non-hydraulically expanding or non-pneumatically expanding actuation force on the anchor to change the shape of the anchor, such as by applying proximally and/or distally directed force on the anchor using a releasable deployment tool to expand and contract the anchor or parts of the anchor. Another aspect of the invention provides an apparatus including a replacement valve; an anchor; and a deployment tool comprising a plurality of anchor actuation elements adapted to apply a non-hydraulically expanding or non-pneumatically expanding actuation force on the anchor to reshape the anchor.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: September 17, 2019
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Amr Salahieh, Jean-Pierre Dueri, Hans F. Valencia, Brian D. Brandt, Dwight P. Morejohn, Claudio Argento, Tom Saul, Ulrich R. Haug
  • Patent number: 10413409
    Abstract: The present invention relates to apparatus and methods for endovascularly delivering and releasing a prosthesis, e.g., an aortic prosthesis, within and/or across a patient's native heart valve, referred to hereinafter as replacing the patient's heart valve. In some embodiments the delivery system comprises a plurality of first actuatable element adapted to engage a plurality of second elements in a first configuration to capture the implant within the delivery system, and wherein the plurality of first actuatable element are adapted to engage the plurality of second elements in a second configuration and to release the implant from the delivery system.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: September 17, 2019
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Amr Salahieh, Hans F. Valencia, Brian D. Brandt, Claudio Argento, Ulrich R. Haug, Jean-Pierre Dueri, Daniel K. Hildebrand, Dwight P. Morejohn, Tom Saul
  • Patent number: 10398495
    Abstract: Tissue treatment systems include an actuator handle assembly coupled with a clamp assembly having a first jaw mechanism and a second jaw mechanism. A first jaw mechanism includes a first flexible boot, a first flexible ablation member coupled with the first flexible boot, and a first rotatable jawbone disposed within the first flexible boot. A second jaw mechanism comprises a second flexible boot, a second flexible ablation member coupled with the second flexible boot, and a second rotatable jawbone disposed within the second flexible boot.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: September 3, 2019
    Assignee: AtriCure, Inc.
    Inventors: Dwight P. Morejohn, Tamer Ibrahim, Michael J. Banchieri, Ara Stephanian
  • Patent number: 10383612
    Abstract: Organ manipulation devices for atraumatically grasping the surface of an organ and repositioning the organ to allow access to a location on the organ that would otherwise be substantially inaccessible. Methods of accessing a beating heart, retracting the heart using an organ manipulation apparatus, and stabilizing a surgical target area with a stabilizer. Both the organ manipulator and stabilizer are fixed to a stationary object which may be a sternal retractor. A system for performing beating heart coronary artery bypass grafting includes a sternal retractor, organ manipulator and stabilizer.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: August 20, 2019
    Assignee: MAQUET CARDIOVASCULAR LLC
    Inventors: Harry Leonard Green, II, Jon M. Tanaka, Edward A. Pineda, Dwight P. Morejohn, Robert Mosley, Joshua Wallin, Iris Leon Corbin
  • Publication number: 20190247113
    Abstract: Surgical systems and methods for administering an ablation treatment and other therapeutic or diagnostic protocols to a patient tissue involve a flexible stabilizer mechanism having an inner recess and an ablation mechanism coupled with the stabilizer mechanism.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 15, 2019
    Applicant: AtriCure, Inc.
    Inventors: Tamer IBRAHIM, Dwight P. MOREJOHN, Michael J. BANCHIERI, Ara STEPHANIAN, John D. PAVLIDIS, David K. SWANSON
  • Patent number: 10357359
    Abstract: The present invention provides methods and apparatus for endovascularly replacing a patient's heart valve. The apparatus includes a replacement valve and an anchor having an expandable braid. In some embodiments, the expandable braid is fabricated from a single strand of wire. In some embodiments, the expandable braid comprises at least one turn feature. The anchor and the valve preferably are configured for endovascular delivery and deployment.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: July 23, 2019
    Assignee: BOSTON SCIENTIFIC SCIMED INC
    Inventors: Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Amr Salahieh, Dwight P. Morejohn