Delivery system for a bifurcated stent
OwnerOmer Faruk Eker, Kamil Jerzy Chodzynskiinventors
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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.
Claims20
A delivery system for a bifurcated stent having a stem and a pair of arms, the delivery system comprising:
- a delivery catheter comprising an elongated first tube having a proximal end and a distal end, and a tubular bifurcated part at the distal end configured to accommodate and radially constrain the arms,
- wherein the tubular bifurcated part includes tubular lumens,
- wherein a longitudinal slit disposed on the tubular bifurcated part, including the tubular lumens, is configured for releasable passage of the bifurcated stent therethrough,
- wherein the slit edges are apart or touch,
- wherein the slit spans no more than 30% of a circumference of each of the lumens while the slit is closed, and
- wherein the tubular bifurcated part is formed of a compliant material configured to resists expansion of the bifurcated stent, and allow repeatable opening and closing of the slit.
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 the tubular bifurcated part is formed of a complaint material;
- and
- a slit formed by slit edges in the tubular bifurcated part extends longitudinally along the tubular bifurcated part including the second tubular arms, the slit edges are biased towards each other by the complaint material as the slit edges move relative to each other to open and close the slit, and the slit spans no more than 30% of a circumference of each of the first and second tubular arms while the slit is closed;
- wherein the complaint material applies a bias to the bifurcated stent resisting expansion of the bifurcated stent.
Dependencies are inferred from the claim text.