Stent delivery devices
First Claim
Patent Images
1. A stent delivery device, the device comprising:
- a catheter having a distal end and a proximal end, said proximal end comprising a rigid member;
a fixed wire balloon positioned on said catheter, said balloon having a proximal end, a distal end, and an inflation lumen therethrough;
a core wire positioned in said inflation lumen, said core wire extending from a distal end of said rigid member to said distal end of said balloon, said core wire at least partially attached to said catheter; and
a guidewire lumen positioned alongside said balloon.
1 Assignment
0 Petitions
Accused Products
Abstract
A stent delivery system for treating lesions is provided. The system is suitable for treatment of bifurcation lesions, has a low profile and provides substantially predictable translational and rotational positioning. In one embodiment, the system includes a fixed wire balloon catheter and a partially attached guidewire lumen, wherein the guidewire lumen is attached to the catheter at a crotch point. The location of the crotch point is predetermined so as to provide substantially predictable positioning. Several embodiments of the system are described for various types of lesions and vessel configurations.
-
Citations
66 Claims
-
1. A stent delivery device, the device comprising:
-
a catheter having a distal end and a proximal end, said proximal end comprising a rigid member;
a fixed wire balloon positioned on said catheter, said balloon having a proximal end, a distal end, and an inflation lumen therethrough;
a core wire positioned in said inflation lumen, said core wire extending from a distal end of said rigid member to said distal end of said balloon, said core wire at least partially attached to said catheter; and
a guidewire lumen positioned alongside said balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A stent delivery system, the system comprising:
-
a main elongated element for advancement within a main vessel, said main elongated element comprising;
a proximal end;
a distal end; and
a body connecting said proximal and distal ends;
an auxiliary elongated element for advancement within an auxiliary vessel, said auxiliary elongated element comprising;
a proximal end; and
a distal end, said auxiliary elongated element partially attached to said main elongated element; and
a crotch point, wherein at said crotch point, said body of said main elongated element is attached to said auxiliary elongated element, and wherein a location of said crotch point is configured to stop advancement of said system upon reaching a bifurcation. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
-
33. A stent delivery system, the system comprising:
-
a catheter having a distal end and a proximal end;
a stent positioned on said catheter, the stent having a distal end and a proximal end;
an auxiliary elongated element having a distal end and a proximal end, said auxiliary elongated element positioned outside of said stent; and
a crotch point located at said proximal end of said stent wherein said auxiliary elongated element is attached to said catheter at said crotch point. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40)
-
-
41. A stent delivery system, the system comprising:
-
a catheter having a distal end and a proximal end;
a stent positioned on said catheter, the stent having a distal end and a proximal end;
an auxiliary elongated element having a distal end and a proximal end, said auxiliary elongated element positioned between said stent and said catheter; and
a crotch point located at said distal end of said stent wherein said auxiliary elongated element is attached to said catheter at said crotch point. - View Dependent Claims (42, 43, 44)
-
-
45. A stent delivery system, the system comprising:
-
a catheter having a distal end and a proximal end;
a distal balloon positioned on said distal end of said catheter, the distal balloon having a distal end and a proximal end;
a proximal balloon positioned on said catheter proximal to said distal balloon;
a stent positioned on said proximal balloon, the stent having a distal end and a proximal end;
an auxiliary elongated element having a distal end and a proximal end, said auxiliary elongated element positioned inside of said stent and exiting at said distal end of said stent; and
a crotch point located at said distal end of said stent wherein said auxiliary elongated element is attached to said balloon at said crotch point. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52)
-
-
53. A catheter system comprising:
-
a catheter having a distal end, a proximal end and a body connecting said distal and proximal ends;
a guidewire lumen having a distal end, a proximal end and a body connecting said distal and proximal ends, wherein a first portion of said guidewire lumen is positioned inside said body of said catheter, and a second portion of said guidewire lumen is positioned outside said body of said catheter; and
an exit point located on said body of said catheter wherein said first portion is proximal to said exit point and said second portion is distal to said exit point. - View Dependent Claims (54, 55, 60, 61, 62, 63)
-
-
64. A method for treating a bifurcation, the method comprising:
-
introducing a side branch guidewire into a branch vessel;
providing a stent delivery system, wherein the system comprises;
a main elongated element for advancement within a main vessel, said main elongated element having a proximal end, a distal end, and a body connecting said proximal and distal ends;
a side branch element for advancement within said side branch vessel, said side branch element having a body which is partially attached to said main elongated element;
a crotch point, wherein at said crotch point, said bodies of said main and side branch elements are attached, and wherein a location of said crotch point is configured to stop advancement of said system at a bifurcation; and
a stent positioned on said main elongated element;
inserting a proximal end of said side branch guidewire into said distal end of said side branch lumen;
advancing said stent delivery system over said side branch guidewire until a location at which said advancing automatically stops due to said crotch point reaching said bifurcation; and
deploying said stent.
-
-
65. A method for treating a lesion in a vessel by direct stenting, the method comprising:
-
providing a stent delivery system, the system comprising a catheter having a fixed wire balloon, a core wire positioned through said balloon, a guidewire lumen positioned at least partially alongside said balloon, and a stent positioned on said balloon;
inserting a guidewire into the vessel and through said lesion;
placing a proximal end of said guidewire into said guidewire lumen;
advancing said stent delivery system of the guidewire until said stent is positioned at said lesion; and
deploying said stent.
-
-
66. A method for treating a lesion in a vessel, the method comprising:
-
providing a stent delivery system, the system comprising a catheter having a fixed wire balloon, a core wire positioned through said balloon, a guidewire lumen positioned at least partially alongside said balloon, and a stent positioned on said balloon;
providing a guidewire in said guidewire lumen;
advancing said stent delivery system through said vessel;
introducing said fixed wire through the lesion until said stent is positioned at said lesion; and
deploying said stent.
-
Specification