Prenatal balloon catheter
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United States of America Patent
Stats
-
Apr 28, 2009
Grant Date -
Jul 7, 2005
app pub date -
Dec 17, 2003
filing date -
Dec 17, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hollow metallic needle for guiding a balloon catheter into a fetal vessel or cavity. The needle initially contains a removable obturator which is removed after the needle is generally positioned within the fetus and is replaced by a balloon catheter. A plastic sleeve is mounted upon the distal end of the needle and sufficient air is entrapped within pockets formed in the sleeve to provide an enhanced ultrasonic image return so that a more accurate placement of the balloon is obtainable. The plastic sleeve extends beyond the distal end of the needle and serves to guide the balloon when deflated back into the needle and thus protects the balloon from snagging upon the edge of the needle.
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Family
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