Patents Assigned to World Medical Manufacturing Corp.
  • Patent number: 5957949
    Abstract: An artificial valve stent for maintaining patent one way flow within a biological passage is disclosed. The artificial valve includes a tubular graft having radially compressible annular spring portions for biasing proximal and distal ends of the graft into conforming fixed engagement with the interior surface of a generally tubular passage. Also disclosed is a deployment catheter including an inner catheter having a nitinol core wire, a controllable tip balloon at its the distal end for dilation and occlusion of the passage, and a controllable graft balloon in the vicinity of and proximal to the tip balloon for fixedly seating the spring portions in conformance with the interior surface of the passage. A spool apparatus for adjusting or removing an improperly placed or functioning artificial valve, and a microembolic filter tube are usable with the deployment catheter.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: September 28, 1999
    Assignee: World Medical Manufacturing Corp.
    Inventors: Howard J. Leonhardt, Trevor Greenan