Patents by Inventor Stan Komatsu

Stan Komatsu 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: 10524901
    Abstract: A replacement heart valve can have an expandable frame configured to engage a native valve annulus. A valve body can be mounted onto the expandable frame to provide functionality similar to a natural valve. The valve body has an upstream end and a downstream end, and a diameter at the downstream end is greater than a diameter at the upstream end.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: January 7, 2020
    Assignee: Edwards Lifesciences CardiAQ LLC
    Inventors: Arshad Quadri, J. Brent Ratz, Yen Liao, Stan Komatsu, Kalathi Thygarajan, Robrecht Michiels, Hung Nguyen, MyKim Nguyen
  • Publication number: 20170231762
    Abstract: A replacement heart valve can have an expandable frame configured to engage a native valve annulus. A valve body can be mounted onto the expandable frame to provide functionality similar to a natural valve. The valve body has an upstream end and a downstream end, and a diameter at the downstream end is greater than a diameter at the upstream end.
    Type: Application
    Filed: April 28, 2017
    Publication date: August 17, 2017
    Applicant: Edwards Lifesciences CardiAQ LLC
    Inventors: Arshad Quadri, J. Brent Ratz, Yen Liao, Stan Komatsu, Kalathi Thygarajan, Robrecht Michiels, Hung Nguyen, MyKim Nguyen
  • Patent number: 9295550
    Abstract: Methods for delivering a prosthetic heart valve include advancing a delivery catheter containing the prosthetic heart valve to a deployment native heart valve, advancing an inner core movably coupled to a restraining sheath of the delivery catheter to expose a first end of the prosthetic heart valve, and advancing the inner core and the restraining to expose a second end of the prosthetic heart valve. The delivery catheter can include a distal flange located at a distal end of an outer core of the catheter body, configured to restrict distal longitudinal displacement of the prosthetic heart valve, and a retaining structure located proximally from the distal flange along the outer core of the catheter body, configured to restrict proximal longitudinal displacement of the prosthetic heart valve.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: March 29, 2016
    Assignee: Medtronic CV Luxembourg S.a.r.l.
    Inventors: Than Nguyen, Jacques Seguin, Stan Komatsu, Hung Nguyen, Georg Boertlein
  • Publication number: 20140214154
    Abstract: Methods for delivering a prosthetic heart valve include advancing a delivery catheter containing the prosthetic heart valve to a deployment location at a native heart valve, advancing an inner core movably coupled to a restraining sheath of the delivery catheter to expose a first end of the prosthetic heart valve, and advancing the inner core and the restraining sheath to expose a second end of the prosthetic heart valve. The delivery catheter can include a distal flange located at a distal end of an outer core of the catheter body, configured to restrict distal longitudinal displacement of the prosthetic heart valve, and a retaining structure located proximally from the distal flange along the outer core of the catheter body, configured to restrict proximal longitudinal displacement of the prosthetic heart valve.
    Type: Application
    Filed: March 28, 2014
    Publication date: July 31, 2014
    Applicant: Medtronic CoreValve LLC
    Inventors: Than Nguyen, Jacques Seguin, Stan Komatsu, Hung Nguyen, Georg Boertlein
  • Patent number: 8747459
    Abstract: A prosthetic valve assembly for use in replacing a deficient native valve comprises a replacement valve supported on an expandable prosthesis frame. The valve may be delivered transluminally or transmyocardially using a thorascopic or other limited access approach using a delivery catheter. Preferably, the initial partial expansion of the valve is performed against the native valve annulus to provide adequate anchoring and positioning of the valve as the remaining portions of the valve expand. The valve may be delivered using a retrograde or antegrade approach. When delivered using a retrograde approach, a delivery catheter with a pull-back sheath may be used, while antegrade delivery is preferably performed with a delivery catheter with a push-forward sheath that releases the proximal end of the valve first.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: June 10, 2014
    Assignee: Medtronic CoreValve LLC
    Inventors: Than Nguyen, Jacques Seguin, Stan Komatsu, Hung Nguyen, Georg Boertlein
  • Publication number: 20110313515
    Abstract: A replacement heart valve can have an expandable frame configured to engage a native valve annulus. A valve body can be mounted onto the expandable frame to provide functionality similar to a natural valve. The valve body has an upstream end and a downstream end, and a diameter at the downstream end is greater than a diameter at the upstream end.
    Type: Application
    Filed: June 21, 2011
    Publication date: December 22, 2011
    Inventors: Arshad Quadri, J. Brent Ratz, Yen Liao, Stan Komatsu, Kalathi Thygarajan, Robrecht Michiels, Hung Nguyen, MyKim Nguyen
  • Publication number: 20080140189
    Abstract: A prosthetic valve assembly for use in replacing a deficient native valve comprises a replacement valve supported on an expandable prosthesis frame. The valve may be delivered transluminally or transmyocardially using a thorascopic or other limited access approach using a delivery catheter. Preferably, the initial partial expansion of the valve is performed against the native valve annulus to provide adequate anchoring and positioning of the valve as the remaining portions of the valve expand. The valve may be delivered using a retrograde or antegrade approach. When delivered using a retrograde approach, a delivery catheter with a pull-back sheath may be used, while antegrade delivery is preferably performed with a delivery catheter with a push-forward sheath that releases the proximal end of the valve first.
    Type: Application
    Filed: December 6, 2007
    Publication date: June 12, 2008
    Applicant: CoreValve, Inc.
    Inventors: Than Nguyen, Jacques Seguin, Stan Komatsu, Hung Nguyen, Georg Boertlein