Method of delivering advanced endovascular graft and system
First Claim
1. An endovascular graft delivery system configured to deliver an endovascular graft to a target location within a patient'"'"'s vasculature and deploy the endovascular graft at the target location, comprising:
- an endovascular graft comprising;
a proximal end, a distal end, a tubular graft body section disposed between the proximal end and the distal end; and
a first distal self-expanding member that is disposed distally of;
(i) a second self-expanding member and (ii) the distal end of the graft body section;
wherein the first distal self-expanding member comprises;
a proximal end, a distal end, a plurality of struts and a plurality of apices at each of the proximal and distal ends;
a barb integrally formed as a part of at least one strut without a joint and without other mechanical connection thereat and extending outwardly from a position on said at least one strut, wherein said at least one strut comprises an outer surface and an opposed inner surface, thereby defining a strut wall therein between; and
at least one slot formed as an opening directly through only one longitudinal portion of said one of at least one of the struts from said outer surface of said at least one strut to said opposed inner surface of said at least one strut, said opening being bounded only by the one longitudinal portion of said strut wall of said at least one strut, said at least one strut containing said portion being disposed between one of said plurality of apices at said proximal end and one of said plurality of apices at said distal end, wherein at least one of the proximal and distal apices are curved apices; and
a delivery system comprising;
an elongate shaft having a proximal section and a distal section;
an outer tubular member with the graft body section being disposed within the outer tubular member in a radially constrained state;
a constraint disposed at the first distal self-expanding member; and
a release member for releasing the constraint;
wherein the outer tubular member is configured to be retracted proximally to expose the graft body section; and
wherein the release member is operable to release the constraint from the first distal self-expanding member after the outer tubular member is retracted proximally to at least partially expose the graft body section.
9 Assignments
0 Petitions
Accused Products
Abstract
A flexible low profile delivery system for delivery of an expandable intracorporeal device, specifically, an endovascular graft, which has at least one belt circumferentially disposed about the device in a constraining configuration. The belt is released by a release member, such as a release wire, by retracting the wire from looped ends of the belt. Multiple belts can be used and can be released sequentially so as to control the order of release and placement of the endovascular graft. An outer protective sheath may be disposed about the endovascular graft while in a constrained state which must first be refracted or otherwise removed prior to release of the graft from a constrained state. The delivery system can be configured for delivery over a guiding device such as a guidewire. The delivery system can also be configured for delivery of bifurcated intracorporeal devices.
403 Citations
30 Claims
-
1. An endovascular graft delivery system configured to deliver an endovascular graft to a target location within a patient'"'"'s vasculature and deploy the endovascular graft at the target location, comprising:
-
an endovascular graft comprising; a proximal end, a distal end, a tubular graft body section disposed between the proximal end and the distal end; and a first distal self-expanding member that is disposed distally of;
(i) a second self-expanding member and (ii) the distal end of the graft body section;wherein the first distal self-expanding member comprises; a proximal end, a distal end, a plurality of struts and a plurality of apices at each of the proximal and distal ends; a barb integrally formed as a part of at least one strut without a joint and without other mechanical connection thereat and extending outwardly from a position on said at least one strut, wherein said at least one strut comprises an outer surface and an opposed inner surface, thereby defining a strut wall therein between; and at least one slot formed as an opening directly through only one longitudinal portion of said one of at least one of the struts from said outer surface of said at least one strut to said opposed inner surface of said at least one strut, said opening being bounded only by the one longitudinal portion of said strut wall of said at least one strut, said at least one strut containing said portion being disposed between one of said plurality of apices at said proximal end and one of said plurality of apices at said distal end, wherein at least one of the proximal and distal apices are curved apices; and a delivery system comprising; an elongate shaft having a proximal section and a distal section; an outer tubular member with the graft body section being disposed within the outer tubular member in a radially constrained state; a constraint disposed at the first distal self-expanding member; and a release member for releasing the constraint; wherein the outer tubular member is configured to be retracted proximally to expose the graft body section; and wherein the release member is operable to release the constraint from the first distal self-expanding member after the outer tubular member is retracted proximally to at least partially expose the graft body section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. An endovascular graft delivery system configured to deliver an endovascular graft to a target location within a patient'"'"'s vasculature and deploy the endovascular graft at the target location, comprising:
-
an endovascular graft comprising; a proximal end, a distal end, a tubular graft body section disposed between the proximal end and the distal end; and a first distal self-expanding member that is disposed distally of;
(i) a second self-expanding member and (ii) the distal end of the graft body section;wherein the first distal self-expanding member comprises; a proximal end, a distal end and a plurality of struts and joined by curved apices at the proximal and distal ends of said stent; at least one barb on at least one strut, the barb being an extension of the strut in which no joint and no other connection to the strut exists, wherein said at least one strut comprises an outer surface and an opposed inner surface, thereby defining a strut wall therein between; and at least one slot formed as an opening directly through only one longitudinal portion of said one of at least one of the struts from said outer surface of said at least one strut to said opposed inner surface of said at least one strut, said opening being bounded only by the one longitudinal portion of said strut wall of said at least one strut, said at least one strut containing said portion being disposed between one of said plurality of apices at said proximal end and one of said plurality of apices at said distal end, the slot being configured to the shape of the at least one barb, wherein the first distal self-expanding member is a two-stage stent having interconnected intermediate stent portions, and wherein said curved apices have an outer lateral surface with a radius of curvature; and a delivery system comprising; an elongate shaft having a proximal section and a distal section; an outer tubular member with the graft body section being disposed within the outer tubular member in a radially constrained state; a constraint disposed at the first distal self-expanding member; and a release member for releasing the constraint; wherein the outer tubular member is configured to be retracted proximally to expose the graft body section; and wherein the release member is operable to release the constraint from the first distal self-expanding member after the outer tubular member is retracted proximally to at least partially expose the graft body section. - View Dependent Claims (22, 23, 24)
-
-
25. An endovascular graft delivery system configured to deliver an endovascular graft to a target location within a patient'"'"'s vasculature and deploy the endovascular graft at the target location, comprising:
-
an endovascular graft comprising; a proximal end, a distal end, a tubular graft body section disposed between the proximal end and the distal end; and a first distal self-expanding member that is disposed distally of;
(i) a second self-expanding member and (ii) the distal end of the graft body section;wherein the first distal self-expanding member comprises; a proximal end, a distal end and a plurality of struts and apices at the proximal and distal ends of said stent; at least one barb on a strut, the barb and strut comprising a barb/strut interface in which there is no mechanical connection to join the barb to the strut, wherein said at least one strut comprises an outer surface and an opposed inner surface, thereby defining a strut wall therein between; and at least one slot formed as an opening directly through only one longitudinal portion of said one of at least one of said struts from said outer surface of said at least one strut to said opposed inner surface of said at least one strut, said opening being bounded only by the one longitudinal portion of said strut wall of said at least one strut, said at least one strut containing said portion being disposed between one of said plurality of apices at said proximal end and one of said plurality of apices at said distal end, the at least one slot being configured to the shape of the at least one barb, wherein said apices have an outer lateral surface with a radius of curvature; and a delivery system comprising; an elongate shaft having a proximal section and a distal section; an outer tubular member with the graft body section being disposed within the outer tubular member in a radially constrained state; a constraint disposed at the first distal self-expanding member; and a release member for releasing the constraint; wherein the outer tubular member is configured to be retracted proximally to expose the graft body section; and wherein the release member is operable to release the constraint from the first distal self-expanding member after the outer tubular member is retracted proximally to at least partially expose the graft body section. - View Dependent Claims (26, 27, 28)
-
-
29. An endovascular graft delivery system configured to deliver an endovascular graft to a target location within a patient'"'"'s vasculature and deploy the endovascular graft at the target location, comprising:
-
an endovascular graft comprising; a proximal end, a distal end, a tubular graft body section disposed between the proximal end and the distal end; and a first distal self-expanding member that is disposed distally of;
(i) a second self-expanding member and (ii) the distal end of the graft body section;wherein the first distal self-expanding member comprises; a proximal end, a distal end and a plurality of struts joined by curved apices at the proximal and distal ends of said stent; at least one barb on at least one strut, the barb being located on the strut between two apices, the barb being an extension of the strut in which no joint and no other connection to the strut exists, wherein said at least one strut comprises an outer surface and an opposed inner surface, thereby defining a strut wall therein between; and at least one slot formed as an opening directly through only one longitudinal portion of said one of at least one of the struts from said outer surface of said at least one strut to said opposed inner surface of said at least one strut, said opening being bounded only by the one longitudinal portion of said strut wall of said at least one strut, said at least one strut containing said portion being disposed between one of said plurality of apices at said proximal end and one of said plurality of apices at said distal end, the slot being configured to the shape of the at least one barb, wherein the first distal self-expanding member is a two-stage stent having interconnected intermediate stent portions, and wherein said curved apices have an outer lateral surface with a radius of curvature; and a delivery system comprising; an elongate shaft having a proximal section and a distal section; an outer tubular member with the graft body section being disposed within the outer tubular member in a radially constrained state; a constraint disposed at the first distal self-expanding member; and a release member for releasing the constraint; wherein the outer tubular member is configured to be retracted proximally to expose the graft body section; and wherein the release member is operable to release the constraint from the first distal self-expanding member after the outer tubular member is retracted proximally to at least partially expose the graft body section. - View Dependent Claims (30)
-
Specification