Stent delivery and aspiration catheter
OwnerMike Krivoruchko, William Berthiaumeinventors
Life of this patent
Estimating the term…
Abstract
A stent delivery and aspiration system includes a pushrod having a tip flushing lumen in fluid communication with a porous tip, a stent over the pushrod, and a sheath which restrains the stent from expanding prior to deployment. The sheath including an aspiration tip in fluid communication with an aspiration lumen of the sheath, wherein after deployment of the stent, the sheath has an outer diameter less than an inner diameter of the stent. This allows the sheath to be moved forward into and through the stent enhancing the aspiration and removal of particulates within the vicinity of the deployed stent.
Claims27
A stent delivery and aspiration system comprising:
- a catheter comprising a sheath and a stent, wherein said sheath restrains said stent during delivery of said stent;
- wherein said sheath comprising an aspiration tip in fluid communication with an aspiration lumen port;
- and
- wherein after deployment of said stent, said sheath is sized to pass through said stent.
A stent delivery and aspiration system comprising:
- a pushrod;
- a porous tip mounted to a distal end of said pushrod, said pushrod comprising a tip flushing lumen in fluid communication with said porous tip;
- a stent over said pushrod;
- and
- a sheath which restrains said stent from expanding prior to deployment, said sheath comprising an aspiration tip in fluid communication with an aspiration lumen of said sheath, wherein after deployment of said stent by retraction of said sheath, said sheath has an outer diameter less than an inner diameter of said stent.
A method comprising:
- restraining a stent within a sheath;
- delivering said stent to an occlusion within a vessel;
- deploying said stent by retracting said sheath, wherein said stent expands upon said deploying;
- moving said sheath forward and into said stent;
- and
- providing suction to an aspiration tip of said sheath.
A method comprising:
- restraining a stent over a pushrod;
- delivering said stent to an occlusion within a vessel;
- deploying said stent, wherein said stent expands upon said deploying;
- moving a porous tip mounted to said pushrod into said stent;
- and
- providing suction to said porous tip.
A method comprising:
- restraining a stent within a sheath;
- delivering said stent to an occlusion within a vessel;
- deploying said stent by retracting said sheath, wherein said stent expands upon said deploying;
- moving said sheath forward and into said stent;
- and
- providing a flushing fluid to a tip of said sheath.
A method comprising:
- restraining a stent over a pushrod;
- delivering said stent to an occlusion within a vessel;
- deploying said stent, wherein said stent expands upon said deploying;
- moving a porous tip mounted to said pushrod into said stent;
- and
- providing a flushing fluid to said porous tip.
Dependencies are inferred from the claim text.