Patents by Inventor Michael C. Murad

Michael C. Murad 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).

  • Publication number: 20140121764
    Abstract: A sizing tool for use in implanting a composite valved conduit having a prosthetic heart valve on a distal end attached to a conduit graft that extends to a proximal end. The tool includes a proximal handle and a distal shaft, a prosthetic heart valve sizer having an axis affixed to a distal end of the shaft, and a conduit graft replica having an axis mounted on the shaft proximal to the heart valve sizer. A method of securing a composite valved conduit includes introducing to an excised ascending aorta the sizing tool, measuring the aortic annulus with the prosthetic heart valve sizer, and determining whether the coronary arteries have sufficient length or whether an additional tubular coronary extension segment is required to add to one or both of the ends of the coronary arteries by extending the coronary arteries toward the conduit graft replica.
    Type: Application
    Filed: October 24, 2013
    Publication date: May 1, 2014
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Ruggero De Paulis, Michael C. Murad
  • Publication number: 20120290079
    Abstract: An improved holder and storage system for a tissue-type prosthetic mitral heart valve that constricts the commissure posts of the valve and prevents suture looping. A rod axially movable relative to the holder tensions lengths of attachment sutures that extend between the commissure post tips to create a tent and flex the tips inward, thus helping to prevent looping of any of an array of pre-implanted sutures around the leading tips during delivery of the valve. The holder has a safety mechanism that prevents valve delivery before the rod is deployed. One embodiment automatically deploys the rod upon opening a storage jar. One embodiment permits a delivery handle to directly deploy the rod, while another uses a separate worm screw and coupling. A holder clip that attaches to a packaging sleeve may be formed of flexible members meshed together from which the heart valve and holder are easily pulled free to eliminate a step of decoupling the clip from the sleeve.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 15, 2012
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Michael C. Murad, Emil Karapetian, W. Vaso Adzich
  • Publication number: 20120136434
    Abstract: A holder for a prosthetic mitral heart valve that attaches to an inflow end of the valve and includes a simple tensioning mechanism that flexes the heart valve commissure posts inward to help prevent suture looping. The tensioning mechanism may include relatively movable rings of the holder or a generally unitary holder with a tensor, or rotatable knob. Connecting sutures thread through internal passages in the holder and travel in the outflow direction along valve commissure posts, emerging at the post tips and mutually crossing over the outflow side of the valve. A handle attaches off-center on the holder to increase visualization of and access to the heart valve through a central window. The holder is constructed of non-metallic materials so as to avoid interfering with imaging devices, and the handle is ergonomically curved and shaped to facilitate manipulation. The holder may be shaped as a ring with an open inner diameter for enhanced access to the commissure posts and leaflets.
    Type: Application
    Filed: November 29, 2011
    Publication date: May 31, 2012
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Alain F. Carpentier, Michael C. Murad
  • Publication number: 20110198244
    Abstract: Packaging for prosthetic heart valves including an assembly for securely retaining a heart valve within a sterile jar and facilitating retrieval therefrom. The assembly includes a packaging sleeve that fits closely within the jar and has a clip structure for securing a valve holder. A delivery handle on the end of a shaft couples with the valve holder while the packaging sleeve engages the jar to prevent rotation. The assembly of the packaging sleeve, valve, and holder can then easily be removed from the jar.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 18, 2011
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Michael C. Murad, Mark Van Nest, Jackie Lau