Delivery system for a bifurcated stent
AssigneeTristent Development SAS
InventorsOmer Faruk EKER, Kamil Jerzy CHODZYNSKI
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Abstract
A delivery system (100) for a bifurcated stent (200) is described having a stem (226) and a pair of arms (220, 222), comprising a delivery catheter (110) comprising an elongated first tube (102) having a proximal end (20) and a distal end (30) and a bifurcated part (114) at the distal end (30) configured to accommodate the arms (220, 222), wherein a longitudinal slit (140) disposed on the bifurcated part (114) is configured for releasable passage of the bifurcated stent (200) therethrough. A method for delivery of the bifurcated stent to a site of treatment using the delivery system (100) is also described.
Claims29
1-20. (canceled)
A delivery system for a bifurcated stent having a stem and a pair of arms, the delivery system including a delivery catheter comprising:
- an elongated first tube having a proximal end region and a distal end region, and a tubular bifurcated part at the distal end region configured to accommodate the arms, wherein the tubular bifurcated part includes tubular lumens, and
- a longitudinal slit disposed on the tubular bifurcated part and on the tubular lumens,
- wherein the tubular bifurcated part is formed of a material having a native state that resists expansion of the bifurcated stent and allows forward and reverse passage of the bifurcated stent through the longitudinal slit.
A method for delivery of a bifurcated stent to a site of treatment using the delivery system comprising:
- advancing a delivery catheter through a vascular passage to a treatment site, wherein the delivery catheter includes an elongated first tube having a tubular bifurcated part at a distal end region of the elongated tube, and the tubular bifurcated part includes tubular lumens each with a slit extending substantially the length of the tubular lumens, and the tubular lumens are formed of a compliant material configured to allow the slit to expand;
- and
- deploying the bifurcated stent at the treatment site by withdrawing the delivery catheter to cause the slit to expand and allow the bifurcated stent to separate from the tubular lumens.
A delivery assembly comprising:
- a bifurcated stent including a stem and first arms;
- a delivery catheter comprising an elongated first tube having a proximal end, and a distal end, and a tubular bifurcated part proximate the distal end of the first tube, wherein the tubular bifurcated part includes second tubular arms configured to receive within the second tubular arms the first arms of the bifurcated stent;
- and
- a slit formed by slit edges in the tubular bifurcated part that extends longitudinally along the tubular bifurcated part including the second tubular arms, wherein the tubular bifurcated part is formed of a material having a native state that both applies a bias to the bifurcated stent resisting expansion of the bifurcated stent and allows forward and reverse passage of the bifurcated stent through the longitudinal slit.
Dependencies are inferred from the claim text.