Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1992-05-19
1993-11-16
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
606194, A61M 2900
Patent
active
052618781
ABSTRACT:
A cardiac catheter for use in maintaining the patency of the ductus arteriosus in infants is provided with two inflatable balloons, a distal end balloon and a stent balloon. Each balloon is independently inflatable. The stent is carried temporarily on the stent balloon and is delivered by the catheter to the site of the ductus arteriosus. Expansion of the stent balloon expands the stent and places it at the target site. The stent balloon is confidently and reliably placed in the ductus arteriosus by first inflating the distal end balloon and withdrawing the catheter until abuts the opening of the ductus arteriosus through which it has been previously disposed. When this abutment is realized, the stent balloon is necessarily positioned appropriately within the ductus arteriosus. While maintaining the inflation of the distal end balloon, the stent balloon is inflated and the stent placed. After placement, both the distal end balloon and stent balloon are deflated and the catheter withdrawn.
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Dawes Daniel L.
The Regents of the University of California
Yasko John D.
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