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).
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Publication number: 20140148641Abstract: 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: ApplicationFiled: February 3, 2014Publication date: May 29, 2014Applicant: MAQUET CARDIOVASCULAR LLCInventors: Harry Leonard Greee, II, Jon M. Tanaka, Edward A. Pineda, Dwight P. Morejohn, Liming Lau, John P. Lunsford, Robert Mosley, Joshua Wallin, Iris Leon Corbin
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Publication number: 20140135912Abstract: 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: ApplicationFiled: November 11, 2013Publication date: May 15, 2014Applicant: Sadra Medical, Inc.Inventors: Amr Salahieh, Dwight P. Morejohn, Daniel K. Hildebrand, Tom Saul
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Patent number: 8715302Abstract: Embodiments of the present invention encompass systems and methods to prevent complications from atrial fibrillation by preventing or reducing the likelihood of blood flow out of the left atrial appendage, to eliminate a possible source of aberrant electrical circuits, or both. Accordingly, techniques are provided for delivering ligature loops or closure means to the left atrial appendage, and to other anatomical structures of a patient which may be desirable in other surgical procedures.Type: GrantFiled: June 15, 2012Date of Patent: May 6, 2014Assignee: Estech, Inc. (Endoscopic Technologies, Inc.)Inventors: Tamer Ibrahim, Dwight P. Morejohn
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Publication number: 20140121766Abstract: 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: ApplicationFiled: January 6, 2014Publication date: May 1, 2014Applicant: SADRA MEDICAL INC.Inventors: Amr Salahieh, Brian D. Brandt, Dwight P. Morejohn, Ulrich R. Haug, Jean-Pierre Dueri, Hans F. Valencia, Robert A. Geshlider
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Publication number: 20140114406Abstract: Apparatus for endovascularly replacing a patient's heart valve, including: a delivery catheter having a diameter of 21 french or less; an expandable anchor disposed within the delivery catheter; and a replacement valve disposed within the delivery catheter. The invention also includes a method for endovascularly replacing a heart valve of a patient. In some embodiments the method includes the steps of: inserting a catheter having a diameter no more than 21 french into the patient; endovascularly delivering a replacement valve and an expandable anchor to a vicinity of the heart valve through the catheter; and deploying the anchor and the replacement valve.Type: ApplicationFiled: December 31, 2013Publication date: April 24, 2014Applicant: Sadra Medical, 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
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Publication number: 20140094904Abstract: A method for endovascularly replacing a heart valve of a patient. In some embodiments the method includes the steps of: endovascularly delivering a replacement valve and an expandable anchor in an unexpanded configuration within a catheter to a vicinity of the heart valve; deploying the anchor from the catheter; expanding the anchor to contact tissue at an anchor site; and retrieving the anchor into the catheter. The invention also includes an apparatus for endovascularly replacing a heart valve, including: a catheter; a replacement valve configured to be disposed within the catheter for delivery to a vicinity of the heart valve; and an expandable anchor configured to be disposed within the catheter for delivery to a vicinity of the heart valve, to be deployed from the catheter, to be expanded to contact tissue at an anchor site and to be retrieved back into the catheter after having been expanded.Type: ApplicationFiled: December 9, 2013Publication date: April 3, 2014Applicant: Sadra Medical, 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
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Patent number: 8668733Abstract: The present invention provides methods and apparatus for endovascularly replacing a patient's heart valve. The apparatus includes a replacement valve and an expandable anchor configured for endovascular delivery to a vicinity of the patient's heart valve. In some embodiments, the replacement valve is adapted to wrap about the anchor, for example, by everting during endovascular deployment. In some embodiments, the replacement valve is not connected to expandable portions of the anchor. In some embodiments, the anchor is configured for active foreshortening during endovascular deployment. In some embodiments, the anchor includes expandable lip and skirt regions for engaging the patient's heart valve during deployment. In some embodiments, the anchor comprises a braid fabricated from a single strand of wire. In some embodiments, the apparatus includes a lock configured to maintain anchor expansion. The invention also includes methods for endovascularly replacing a patient's heart valve.Type: GrantFiled: November 12, 2008Date of Patent: March 11, 2014Assignee: Sadra Medical, Inc.Inventors: Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Amr Salahieh, Dwight P. Morejohn, Kenneth J. Michlitsch
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Patent number: 8641598Abstract: 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: GrantFiled: December 18, 2008Date of Patent: February 4, 2014Assignee: Maquet Cardiovascular LLCInventors: Harry Leonard Green, II, Jon M. Tanaka, Edward A. Pineda, Dwight P. Morejohn, Liming Lau, John P Lunsford, Robert Mosley, Joshua Wallin, Iris Leon Corbin
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Patent number: 8628522Abstract: 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: GrantFiled: May 21, 2008Date of Patent: January 14, 2014Assignee: ESTECH, Inc. (Endoscopic Technologies, Inc.)Inventors: Tamer Ibrahim, Mike J. Banchieri, Dwight P. Morejohn
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Patent number: 8623076Abstract: Apparatus for endovascularly replacing a patient's heart valve, including: a delivery catheter having a diameter of 21 french or less; an expandable anchor disposed within the delivery catheter; and a replacement valve disposed within the delivery catheter. The invention also includes a method for endovascularly replacing a heart valve of a patient. In some embodiments the method includes the steps of: inserting a catheter having a diameter no more than 21 french into the patient; endovascularly delivering a replacement valve and an expandable anchor to a vicinity of the heart valve through the catheter; and deploying the anchor and the replacement valve.Type: GrantFiled: September 22, 2011Date of Patent: January 7, 2014Assignee: Sadra Medical, Inc.Inventors: Amr Salahieh, Brian D. Brandt, Dwight P. Morejohn, Ulrich R. Haug, Jean-Pierre Dueri, Hans F. Valencia, Robert A. Geshlider, Jeff Krolik
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Patent number: 8623078Abstract: 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: GrantFiled: June 8, 2011Date of Patent: January 7, 2014Assignee: Sadra Medical, Inc.Inventors: Amr Salahieh, Brian D. Brandt, Dwight P. Morejohn, Ulrich R. Haug, Jean-Pierre Dueri, Hans F. Valencia, Robert A. Geshlider
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Patent number: 8603160Abstract: A method for endovascularly replacing a heart valve of a patient. In some embodiments the method includes the steps of: endovascularly delivering a replacement valve and an expandable anchor in an unexpanded configuration within a catheter to a vicinity of the heart valve; deploying the anchor from the catheter; expanding the anchor to contact tissue at an anchor site; and retrieving the anchor into the catheter. The invention also includes an apparatus for endovascularly replacing a heart valve, including: a catheter; a replacement valve configured to be disposed within the catheter for delivery to a vicinity of the heart valve; and an expandable anchor configured to be disposed within the catheter for delivery to a vicinity of the heart valve, to be deployed from the catheter, to be expanded to contact tissue at an anchor site and to be retrieved back into the catheter after having been expanded.Type: GrantFiled: December 23, 2003Date of Patent: December 10, 2013Assignee: Sadra Medical, Inc.Inventors: Amr Salahieh, Brian D. Brandt, Dwight P. Morejohn, Ulrich R. Haug, Jean-Pierre Dueri, Hans F. Valencia, Robert A. Geshlider, Jeff Krolik
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Patent number: 8579962Abstract: 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: GrantFiled: December 20, 2005Date of Patent: November 12, 2013Assignee: Sadra Medical, Inc.Inventors: Amr Salahieh, Dwight P. Morejohn, Daniel Hildebrand, Tom Saul
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Publication number: 20130172864Abstract: 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: ApplicationFiled: May 16, 2012Publication date: July 4, 2013Applicant: ESTECH, Inc. (Endoscopic Technologies, Inc.)Inventors: Tamer Ibrahim, Dwight P. Morejohn, Michael J. Banchieri, Ara Stephanian, John D. Pavlidis, David K. Swanson
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Patent number: 8343213Abstract: The present invention relates to apparatus for methods for endovascularly replacing a patient's heart valve. The apparatus includes an expandable anchor with leaflet engagement elements on the proximal end of the anchor and a replacement valve. The leaflet engagement elements can be used to prevent distal migration and insure proper positioning of the apparatus.Type: GrantFiled: October 21, 2004Date of Patent: January 1, 2013Assignee: Sadra Medical, Inc.Inventors: Amr Salahieh, Brian D. Brandt, Robert A. Geshlider, Dwight P. Morejohn, Tom Saul
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Publication number: 20120330409Abstract: Methods for endovascularly replacing a patient's heart valve. In some embodiments, the method includes the steps of endovascularly delivering a replacement valve and an anchor to a vicinity of the heart valve, the anchor having a braid, and expanding the braid to a deployed configuration against the patient's tissue. The braid may be fabricated from a single strand of wire and/or may comprise at least one turn feature.Type: ApplicationFiled: August 22, 2012Publication date: December 27, 2012Applicant: SADRA MEDICAL, INC.Inventors: Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Amr Salahieh, Dwight P. Morejohn
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Publication number: 20120323262Abstract: Embodiments of the present invention encompass systems and methods to prevent complications from atrial fibrillation by preventing or reducing the likelihood of blood flow out of the left atrial appendage, to eliminate a possible source of aberrant electrical circuits, or both. Accordingly, techniques are provided for delivering ligature loops or closure means to the left atrial appendage, and to other anatomical structures of a patient which may be desirable in other surgical procedures.Type: ApplicationFiled: June 15, 2012Publication date: December 20, 2012Applicant: ESTECH, Inc. (Endoscopic Technologies, Inc.)Inventors: Tamer Ibrahim, Dwight P. Morejohn
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Patent number: 8277476Abstract: The invention is methods and devices which a surgeon may use to stabilize the beating heart during a surgical procedure on the heart. Pursuant to the invention, a stabilizing device is introduced through an opening in the chest and brought into contact with the beating heart. By contacting the heart with the device and by exerting a stabilizing force on the device, the motion of the heart caused by the contraction of the heart muscles is effectively eliminated such that the heart is stabilized and the site of the surgery moves only minimally if at all. Typically, in separate steps, the surgeon contacts the heart with the stabilizing means, assesses the degree of movement of the anastomosis site, and exerts a force on the stabilizing means such that the contraction of the beating heart causes orgy minimal excess motion at the surgery site.Type: GrantFiled: October 14, 2003Date of Patent: October 2, 2012Assignee: Maguet Cardiovascular LLCInventors: Charles S. Taylor, William N. Aldrich, Thomas L. Baughman, Federico J. Benetti, Brian J. Bennett, Michael J. Billig, Thomas J. Fogarty, John J. Frantzen, Richard S. Ginn, Robert C. Glines, Harry L. Green, Dwight P. Morejohn, Brent Regan, Eugene E. Reis, Amr Salahieh, Ivan Sepetka, Benjamin Sherman, Christian Skieller, Valavanur A. Subramanian, Gary B. Weller, William F. Witt
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Patent number: 8252052Abstract: Methods for endovascularly replacing a patient's heart valve. In some embodiments, the method includes the steps of endovascularly delivering a replacement valve and an anchor to a vicinity of the heart valve, the anchor having a braid, and expanding the braid to a deployed configuration against the patient's tissue. The braid may be fabricated from a single strand of wire and/or may comprise at least one turn feature.Type: GrantFiled: February 8, 2008Date of Patent: August 28, 2012Assignee: Sadra Medical, Inc.Inventors: Amr Salahieh, Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Dwight P. Morejohn
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Patent number: 8246678Abstract: 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: GrantFiled: March 9, 2007Date of Patent: August 21, 2012Assignee: Sadra Medicl, Inc.Inventors: Amr Salahieh, Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Dwight P. Morejohn