Method of delivering a bifurcated stent
First Claim
1. A method comprising:
- a) inserting a first balloon catheter having a tip 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;
b) inserting a second balloon catheter having a tip through said stem portion and extending out of said branch aperture such that its tip is longer than that of the first balloon catheter.
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Accused Products
Abstract
A first balloon catheter having a tip extends through the stem portion and first leg portion of a first expandable tubular member and a second balloon catheter having a tip through said stem portion and extends out of a branch aperture such that its tip is longer than that of the first balloon catheter. The first, expandable tubular member, first balloon catheter and second balloon catheter are delivered to a bifurcated vessel having a first lumen and a second lumen with the tip of the second balloon catheter leading the rest of the elements so that the tip of said second balloon catheter can be aligned with and enter into the second lumen before the first expandable tubular member and the tip of said first balloon catheter reach the area of said second lumen and interfere with the second balloon catheter.
92 Citations
17 Claims
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1. A method comprising:
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a) inserting a first balloon catheter having a tip 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;
b) inserting a second balloon catheter having a tip through said stem portion and extending out of said branch aperture such that its tip is longer than that of the first balloon catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
c) delivering the first expandable tubular member, first balloon catheter and second balloon catheter to a bifurcated vessel having a first lumen and a second lumen with the tip of said second balloon catheter leading the rest of the elements.
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3. The method according to claim 2 and further including:
d) leading said tip of said second balloon catheter into the second lumen before said first expandable tubular member and said tip of said first balloon catheter reach the area of said second lumen.
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4. The method according to claim 3 and further including:
e) disposing the first expandable member within the first lumen.
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5. The method according to claim 4 and further including:
f) inflating said second balloon.
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6. The method according to claim 5 wherein said inflating widens the branch aperture in an amount sufficient to further align the branch aperture with the second lumen.
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7. The method according to claim 5 and further including:
g) expanding the first expandable member in an amount sufficient to secure the first expandable member in the first lumen.
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8. The method according to claim 7 and further including:
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h) preparing a second expandable tubular member having a proximal end and a distal end having longitudinal bore therethrough;
i) delivering the second expandable tubular member into the branch aperture so that the distal end of the second expandable tubular member is disposed within the second lumen and the proximal end of the second expandable tubular member is disposed within the branch aperture of the first tubular member, the longitudinal bore of the second expandable tubular member in fluid communication with the longitudinal bore of the first longitudinal member; and
j) expanding the second expandable tubular member in an amount sufficient to secure the second expandable tubular member within the second lumen and within the branch aperture.
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9. The method of claim 5, wherein during step f) the branch aperture is widened in an amount sufficient to form a branch securing lip.
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10. A method comprising:
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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 having a tip, 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;
d) mounting the first expandable tubular member on a second balloon catheter having a tip, with the balloon catheter extending out of the branch aperture such that its tip is longer than the tip of the first balloon catheter;
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 with the tip of the second balloon catheter leading the rest of the elements and entering into the second lumen first followed by the first expandable member entering into the first lumen;
g) inflating the second balloon catheter; 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. - View Dependent Claims (11, 12, 13, 14, 15)
a) removing the second balloon catheter;
b) mounting a second expandable tubular member having a proximal end and a distal end having longitudinal bore therethrough on the second balloon catheter;
c) delivering the second expandable tubular member into the branch aperture so that the distal end of the second expandable tubular member is disposed within the second lumen and the proximal end of the second expandable tubular member is disposed within the branch aperture of the first tubular member, the longitudinal bore of the second expandable tubular member in fluid communication with the longitudinal bore of the first longitudinal member; and
d) inflating the second balloon catheter to expand the second expandable tubular member in an amount sufficient to secure the second expandable tubular member within the second lumen and within the branch aperture.
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12. The method according to claim 11 and further including:
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a) deflating the first and the second balloon catheters;
b) removing the second balloon catheter;
c) mounting a second expandable tubular member having a proximal end and a distal end having longitudinal bore therethrough on the second balloon catheter;
d) delivering the second expandable tubular member into the branch aperture so that the distal end of the second expandable tubular member is disposed within the second lumen and the proximal end of the second expandable tubular member is disposed within the branch aperture of the first tubular member, the longitudinal bore of the second expandable tubular member in fluid communication with the longitudinal bore of the first longitudinal member;
e) inflating the first balloon catheter; and
f) inflating the second balloon catheter to expand the second expandable tubular member in an amount sufficient to secure the second expandable tubular member within the second lumen and within the branch aperture.
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13. The method of claim 11, wherein the branch aperture is widened in an amount sufficient to form a branch securing lip.
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14. The method of claim 12, wherein, the second expandable tubular member is widened in an amount sufficient to form a branch securing lip.
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15. The method of claim 10, wherein the first balloon catheter is inflated before the second balloon catheter is inflated and the first balloon catheter is left inflated until the second expandable tubular member is secured within the branch aperture by the second balloon catheter.
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16. Apparatus comprising:
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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, the first tubular member provided with a branch aperture disposed between the proximal end and the distal end;
b) a first balloon catheter having a tip extending through said stem portion and first leg portion; and
c) a second balloon catheter having a tip extending through said stem portion and extending out of said branch aperture such that its tip is longer than that of the first balloon catheter. - View Dependent Claims (17)
d) a second expandable tubular member having a proximal end and a distal end having longitudinal bore therethrough and having a diameter permitting the proximal end of the second expandable tubular member, when expanded to be securely disposed within the branch aperture of the first tubular member, the longitudinal bore of the second expandable tubular member in fluid communication with the longitudinal bore of the first longitudinal member.
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Specification