Valve prosthesis for implantation in the body and a catheter for implanting such valve prosthesis
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United States of America Patent
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Nov 17, 2009
Grant Date -
Feb 20, 2003
app pub date -
Oct 10, 2002
filing date -
May 18, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A valve prosthesis for implantation in the body by use of a catheter includes a stent made from an expandable cylinder-shaped thread structure including several spaced apices. The elastically collapsible valve is mounted on the stent as the commissural points of the valve are secured to the projecting apices. The valve prosthesis can be compressed around balloons of the balloon catheter and inserted in a channel, for instance, in the aorta. When the valve prosthesis is placed correctly, the balloons are inflated to expand the stent and wedge it against the wall of the aorta. The balloons are provided with beads to ensure a steady fastening of the valve prosthesis on the balloons during insertion and expansion. The valve prosthesis and the balloon catheter make it possible to insert a cardiac valve prosthesis without a surgical operation involving opening the thoracic cavity.
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