Occlusion device
AssigneeSciMed Life Systems, Inc.
InventorsRobert M. Rauker, Peter J. Gafner
Life of this patent
Estimating the term…
Abstract
An occlusion device for occluding a body conduit including an elongate tubular shaft having an inflatable balloon disposed near the elongate shaft distal end and a proximal seal having a sufficiently small profile to allow a second catheter to pass over the distal occlusion device while the inflatable balloon remains uninflated. One occlusion device includes an elongate fluid displacement rod within the occlusion device elongate shaft, providing both a fluid pressure source and a seal. The elongate rod can be rapidly advanced and retracted, providing rapid and controlled inflation and deflation of the distal balloon.
Claims9
A device for treating a body vessel region while occluding a more distal body vessel region comprising:
- a first catheter including a first elongate tubular shaft having a proximal region, a distal region, a proximal end, and a first lumen therethrough, an inflatable balloon disposed near said first shaft distal region and having an interior in fluid communication with said first lumen, and a fluid displacement rod having a portion thereof slideably disposed in said tubular member such that said balloon may be expanded upon longitudinal actuation of said rod;
- and
- a second catheter including a second elongate tubular shaft having a second lumen therethrough, wherein said second catheter second lumen is dimensioned to slide over said first catheter shaft while said first catheter balloon remains inflated with inflation fluid.
A method for treating a body vessel target region comprising the steps of:
- providing a first catheter including a first elongate tubular shaft having a proximal region, a distal region, and a first lumen therethrough, an inflatable balloon disposed near said first shaft distal region and having an interior in fluid communication with said first lumen, and a fluid displacement rod having a portion thereof slidably disposed in said tubular shaft such that said balloon may be expanded upon longitudinal actuation of said rod;
- providing a second catheter having a second elongate tubular shaft having a distal region and a second lumen therethrough and having means for treating said vessel region disposed near said second shaft distal region;
- advancing said first catheter to a position distally past said target region;
- inflating said first catheter balloon by inserting said fluid displacement rod into said first catheter lumen and forcing fluid into said first catheter balloon;
- maintaining said first catheter balloon inflation by maintaining fluid pressure in said first catheter shaft lumen;
- advancing said second catheter over said first catheter shaft by inserting said first catheter shaft proximal end into said second catheter shaft lumen distal end;
- and
- treating said vessel site with said second catheter treating means.
Dependencies are inferred from the claim text.