Catheter balloon systems and methods
First Claim
1. A system for treatment of a bifurcated body lumen, the bifurcated body lumen comprising a main vessel and a branch vessel, the system comprising:
- a catheter comprising a main catheter shaft and a first balloon associated with the main catheter shaft;
a side sheath and a second balloon associated with the side sheath; and
a stent comprising a generally cylindrical body having a proximal end and a distal end, a branch portion, and a branch access opening;
wherein the stent is positioned relative to the side sheath such that the first balloon is adapted to expand the main body portion of the stent, and the second balloon is adapted to extend the branch portion toward the branch vessel, and the second balloon is longitudinally located between the proximal end and the distal end of the stent; and
wherein at least a portion of the side sheath extends through the branch access opening.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for treatment of a bifurcation of a body lumen, the bifurcation having a main vessel and a branch vessel, the system includes a catheter having a main catheter shaft and a first balloon associated with the main catheter shaft, a side sheath and a second balloon associated with the side sheath, and a stent including a generally cylindrical body and a branch portion. A method is also described which includes advancing a catheter system through the main vessel, positioning a branch portion of a stent present in the system proximate to a branch vessel, and inflating first and second balloons thereby expanding a main body and branch portion of the stent.
239 Citations
43 Claims
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1. A system for treatment of a bifurcated body lumen, the bifurcated body lumen comprising a main vessel and a branch vessel, the system comprising:
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a catheter comprising a main catheter shaft and a first balloon associated with the main catheter shaft;
a side sheath and a second balloon associated with the side sheath; and
a stent comprising a generally cylindrical body having a proximal end and a distal end, a branch portion, and a branch access opening;
wherein the stent is positioned relative to the side sheath such that the first balloon is adapted to expand the main body portion of the stent, and the second balloon is adapted to extend the branch portion toward the branch vessel, and the second balloon is longitudinally located between the proximal end and the distal end of the stent; and
wherein at least a portion of the side sheath extends through the branch access opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A system for treatment of a bifurcated body lumen, the bifurcated body lumen comprising a main vessel and a branch vessel, the system comprising:
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a catheter comprising a main catheter shaft and a first balloon associated with the main catheter shaft;
a side sheath and a second balloon associated with the side sheath; and
a stent comprising a generally cylindrical body defining an outer perimeter having a proximal end and a distal end and a branch portion;
wherein the stent is positioned relative to the side sheath such that the first balloon is adapted to expand the main body portion of the stent, and the second balloon is adapted to extend the branch portion toward the branch vessel, and wherein the second balloon is located radially inward of the outer perimeter when the second balloon is not inflated. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. A method for treating a bifurcated body lumen, the bifurcated body lumen comprising a main vessel and a branch vessel, the method comprising:
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(i) advancing a catheter system through the main vessel, the catheter system comprising;
a main catheter shaft and a first balloon associated with the main catheter shaft;
a side sheath and a second balloon associated with the side sheath; and
a stent comprising a generally cylindrical body having a proximal end, a distal end, a branch portion, and a branch access opening;
wherein at least a portion of the side sheath extends through the branch access opening; and
wherein the second balloon is longitudinally located between the proximal end and the distal end of the stent;
(ii) positioning the branch portion of the stent proximate to the branch vessel;
(iii) inflating the first balloon thereby causing expansion of the generally cylindrical body of the stent; and
(iv) inflating the second balloon thereby causing the branch portion of the stent to be pushed outward with respect to the generally cylindrical body of the stent. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification