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US 8,986,364 B2Granted
Stent delivery system
AssigneeGadelius Medical K.K.
InventorNobuaki Okuma
Life of this patent
Estimating the term…
Abstract
A stent delivery system has a pusher catheter having an opening to which a filament is tied to the distal end thereof, and a stent having a catching hole. Because a knot is loosely fit in the catching hole from inside, with an inner catheter supporting the loose-fitting, inadvertent uncoupling of the stent and the pusher catheter can be prevented until the inner catheter is pulled out, and the two can be easily uncoupled by pulling out the inner catheter.
Claims10
A tube stent delivery system comprising:
- a tube stent;
- a pusher catheter;
- an inner catheter;
- and
- a filament having a knot that is tied to a distal end of said pusher catheter through an opening formed in a radial direction thereof,
- said tube stent having a catching hole provided through said tube stent in a radial direction and in which said knot is fit loosely,
- said filament and said knot being inserted into said tube stent, the filament inserted into the tube stent being wholly inside of the tube stent, and said inner catheter being inserted into said pusher catheter and said tube stent, with said knot being loosely fit in said catching hole a distal end of said filament extends beyond said catching hole toward a distal end of said tube stent to prevent the knot from being completely pushed out of the pusher catheter through the catching hole;
- and
- said inner catheter supporting loose-fitting of said knot in said catching hole.
6 more elements
A tube stent delivery system comprising:
- a tube stent;
- a pusher catheter;
- an inner catheter;
- and
- a filament having a knot that is tied to a proximal end of said tube stent through an opening formed in a radial direction thereof,
- said pusher catheter having a catching hole provided through said pusher catheter in a radial direction and in which said knot is fit loosely,
- said filament and said knot being inserted into said pusher catheter, the filament inserted into the pusher catheter being wholly inside of the pusher catheter, and said inner catheter being inserted into said pusher catheter and said tube stent, with said knot being loosely fit in said catching hole a distal end of said filament extends beyond said catching hole toward a proximal end of said pusher catheter to prevent the knot from being completely pushed out of the pusher catheter through the catching hole;
- and
- said inner catheter supporting loose-fitting of said knot in said catching hole.
6 more elements
Dependencies are inferred from the claim text.