Valvuloplasty catheter with balloon which remains stable during inflation
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United States of America Patent
Stats
-
Jan 22, 1991
Grant Date -
N/A
app pub date -
Sep 22, 1989
filing date -
Sep 22, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valvuloplasty catheter is described which includes an elongated flexible plastic tube dimensioned so as to allow it to be passed through the vascular system. Affixed to the distal end portion of the tube is an inflatable expander member which is intended to be positioned in the annulus of the valve to be treated. Inflation ports expose the interior of the expander member to the lumen of the tube so that when an inflation fluid is injected, under pressure, at the distal end of the tube, the expander member expands radially outward to spread the valve and free-up its leaflets. The novelty resides in providing first and second inflation ports of differing size so that the expander member inflates so as to create a dog-bone effect, tending to stabilize the expander member relative to the valve being treated.
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Family
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Cited Art Landscape
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