Bifurcated stent with improved side branch aperture and method of making same
AssigneeMedinol Ltd.
InventorsJacob Richter, Gregory Pinchasik
Life of this patent
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Abstract
A bifurcated stent for insertion into a bifurcated vessel such as a blood vessel. In one embodiment, a first sheet is formed into a first leg, a second sheet is formed into a second leg, a third sheet is formed into a stem, and the two legs are attached to the stem. In a second embodiment, a first sheet is formed into a member having a first leg and half of a stem, a second sheet is formed into a second member having a second leg and half of a stem, and the two stem halves are combined to form the bifurcated stent. In a third embodiment, the stent comprises two sections that are serially inserted and assembled within the vessel at the site of the bifurcation to be treated.
Claims14
A method comprising:
- a. inserting a first balloon catheter through a first expandable tubular member having a proximal end forming a stem portion and a distal end forming a first leg portion and a longitudinal bore therethrough such that it extends through said stem portion and first leg portion, the first tubular member provided with a branch aperture disposed between the proximal end and the distal end;
- and
- b. inserting a second balloon catheter through said stem portion and extending out of said branch aperture.
A method comprising:
- a. delivering a first guide wire into the first lumen of a bifurcated vessel having a first lumen and a second lumen;
- b. delivering a second guide wire into the second lumen of the bifurcated vessel;
- c. mounting a first expandable tubular member having a proximal end forming a stem portion and a distal end forming a first leg portion and a longitudinal bore therethrough on a first balloon catheter, the first tubular member provided with a branch aperture disposed between the proximal end and the distal end, the branch aperture communicating with the longitudinal bore, on the first guide wire,
- d. mounting the first expandable tubular member on a second balloon catheter, with the balloon extending out of the branch aperture;
- e. mounting the first balloon catheter on the first guide wire and the second balloon catheter on the second guide wire;
- f. delivering the first expandable tubular member to the first lumen of the bifurcated vessel so that the first expandable member is disposed within the first lumen, the branch aperture communicates with the second lumen and the second balloon catheter extends into the second lumen;
- g. inflating the second balloon catheter to widen the branch aperture;
- and
- h. inflating the first balloon catheter to expand the first expandable member in an amount sufficient to secure the first expandable member in the first lumen.
Dependencies are inferred from the claim text.