Patents by Inventor Christopher Michael Sprague

Christopher Michael Sprague 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: 20140316519
    Abstract: A tissue retraction system for a bioprosthetic cardiac valve base configured for attachment to a separate leaflet set includes a plurality of retraction shields releasably attached to the valve base. The retraction shields are configured to restrain tissue within a surgical site. The retraction shields may be flexible and transparent. Shield extenders can be attached to the retraction shields and used to further secure the retraction shields to a device for providing tissue retraction during a surgical procedure.
    Type: Application
    Filed: November 5, 2012
    Publication date: October 23, 2014
    Applicant: VALVEXCHANGE, INC.
    Inventors: Ivan Veseley, Todd D. Campbell, Christopher Michael Sprague, Dean Carpenter
  • Publication number: 20120203335
    Abstract: A collapsible docking station for a valve assembly that includes the collapsible docking station and an exchangeable valve member detachably coupled thereto. The collapsible docking station includes a band that is moveable between a collapsed position where the band forms a wound coil, and a fully expanded position where the band forms a circular ring.
    Type: Application
    Filed: October 13, 2010
    Publication date: August 9, 2012
    Inventors: Ivan Vesely, Christopher Michael Sprague, Dean Carpenter
  • Publication number: 20120192423
    Abstract: A multi-function valve exchange apparatus including an alignment tool for locating tools of the multi-function valve exchange apparatus proximate to an installed cardiovascular valve assembly comprised of a base member and an exchangeable valve member detachably coupled thereto; a stabilizer tool for grabbing the base member and preventing the base member from moving during a procedure for exchanging the existing valve member with a new valve member; removal and collapsing tools for uncoupling and removing the existing valve member; and an installation tool for installing a new exchangeable valve member having a new leaflet set. A method for exchanging a valve member uses the multi-function valve exchange apparatus to facilitate removal of the existing exchangeable valve member and installation of the new exchangeable valve member.
    Type: Application
    Filed: October 14, 2010
    Publication date: August 2, 2012
    Inventors: Ivan Vesely, Christopher Michael Sprague