Implantable prosthesis with displaceable skirt
First Claim
1. An implantable prosthesis having a lumen, said implantable prosthesis comprising:
- at least one radially-expandable tubular body having a first open end, a second open end, and a sidewall extending therebetween; and
at least one skirt extending from, and at least partially overlapping, said tubular body, said skirt terminating in a peripheral edge that is spaced from a juncture between said skirt and said tubular body, at least portions of said peripheral edge being free and displaceable to a greater diameter than said tubular body, said skirt extending from said juncture towards said first end, wherein at least one hole is defined through said sidewall which is overlapped by said skirt, said at least one hole communicating with said lumen of said implantable prosthesis, said sidewall having an uninterrupted outer surface between said first end and said at least one hole so as to allow blood flow trapped by said skirt to be introduced into said lumen of said implantable prosthesis via said at least one hole.
4 Assignments
0 Petitions
Accused Products
Abstract
An implantable prosthesis is provided having a radially-expandable tubular body and at least one skirt extending therefrom. The skirt terminates in a peripheral edge, wherein at least portions of the peripheral edge are free and displaceable to a greater diameter of the tubular body. Thus, with the implantable prosthesis being a stent-graft used to treat an aortic aneurysm (e.g., abdominal aortic aneurysm (“AAA”)), the skirt may be used to inhibit Type I endoleaks upon its selective displacement in response to irregular aortic shaping and/or aneurysm neck expansion. The skirt may actively inhibit Type I endoleaks by forming a physical barrier against flow between the tubular body and the aortic wall. In addition, the skirt may passively inhibit endoleak formation by sufficiently restricting blood flow to allow coagulation and clot formation, which would act as a barrier against endoleakage.
132 Citations
19 Claims
-
1. An implantable prosthesis having a lumen, said implantable prosthesis comprising:
-
at least one radially-expandable tubular body having a first open end, a second open end, and a sidewall extending therebetween; and at least one skirt extending from, and at least partially overlapping, said tubular body, said skirt terminating in a peripheral edge that is spaced from a juncture between said skirt and said tubular body, at least portions of said peripheral edge being free and displaceable to a greater diameter than said tubular body, said skirt extending from said juncture towards said first end, wherein at least one hole is defined through said sidewall which is overlapped by said skirt, said at least one hole communicating with said lumen of said implantable prosthesis, said sidewall having an uninterrupted outer surface between said first end and said at least one hole so as to allow blood flow trapped by said skirt to be introduced into said lumen of said implantable prosthesis via said at least one hole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. An implantable prosthesis comprising:
-
at least one radially-expandable tubular body; and at least one skirt extending from, and at least partially overlapping, said tubular body, said skirt terminating in a peripheral edge that is spaced from a juncture between said skirt and said tubular body, at least portions of said peripheral edge being free and displaceable to a greater diameter than said tubular body, wherein said skirt includes a first portion that is extendable circumferentially outwardly from said tubular body to have at least portions thereof spaced from said tubular body, and a second portion extendable from said first portion to be spaced from, and at least partially coextend with, said tubular body, said second portion being oriented in a different direction from said first portion when extended. - View Dependent Claims (18, 19)
-
Specification