Extra-vascular wrapping for treating aneurysmatic aorta in conjunction with endovascular stent-graft and methods thereof
First Claim
1. An implantable kit for treating an aneurysmatic abdominal aorta of a human subject, the kit comprising:
- an endovascular stent-graft (ESG) comprising;
a structural member (ESG-SM) adjustable between a radially-expanded state and a radially-compressed state; and
a fluid flow guide (FFG), substantially impervious to fluids and adjustable between an expanded state and a radially-compressed state;
said FFG including a proximal region along which the fluid flow guide is tubular to provide a primary conduit; and
said FFG being disposed adjacent to said ESG-SM and being securely attached thereto; and
an extra-vascular wrapping (EVW) comprising;
at least one structural member (EVW-SM), capable of reversibly interchanging between (i) a generally cylindrical expanded state characterized by an inner diameter and a length in the direction of said aorta suitable for surrounding at least an effective portion of said ESG; and
(ii) a deformed state suitable for laparoscopic delivery of said EVW from a location outside of said subject'"'"'s body to a location around said aorta, and vice versa; and
at least one medical textile member adapted to at least partially encircle a segment of said aneurysmatic aorta in proximity to the renal arteries, said medical textile member (a) being disposed adjacent to said EVW-SM and being securely attached thereto, and (b) comprising at least one internal macroporous layer, which comprises a polymer mesh characterized by pores ranging in dimension from 100 μ
m to 2 mm, the macroporous layer being adapted by means of size and shape to be positioned directly over said aneurysmatic abdominal aorta, and shaped so as to define voids dimensioned to allow free tissue ingrowth therethrough,wherein said EVW-SM and either said ESG-SM or said FFG are in reversible attachment therebetween by one or more physical members connecting directly between said ESG and said EVW, so that dislocation of the kit along the aorta is avoided.
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Accused Products
Abstract
A system for treating an aneurysmatic abdominal aorta, comprising (a) an extra-vascular wrapping (EVW) comprising (i) at least one medical textile member adapted to at least partially encircle a segment of aorta in proximity to the renal arteries, and (ii) a structural member, wherein EVW is adapted for laparoscopic delivery, and (b) an endovascular stent-graft (ESG) comprising (i) a compressible structural member, and (ii) a substantially fluid impervious fluid flow guide (FFG) attached thereto. Also described is an extra-vascular ring (EVR) adapted to encircle the neck of an aortic aneurysm. Further described are methods for treating an abdominal aortic aneurysm, comprising laparoscopically delivering the extra-vascular wrapping (EVW) and endovascularly placing an endovascular stent-graft (ESG). Also described are methods to treat a type I endoleak.
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Citations
14 Claims
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1. An implantable kit for treating an aneurysmatic abdominal aorta of a human subject, the kit comprising:
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an endovascular stent-graft (ESG) comprising; a structural member (ESG-SM) adjustable between a radially-expanded state and a radially-compressed state; and a fluid flow guide (FFG), substantially impervious to fluids and adjustable between an expanded state and a radially-compressed state;
said FFG including a proximal region along which the fluid flow guide is tubular to provide a primary conduit; and
said FFG being disposed adjacent to said ESG-SM and being securely attached thereto; andan extra-vascular wrapping (EVW) comprising; at least one structural member (EVW-SM), capable of reversibly interchanging between (i) a generally cylindrical expanded state characterized by an inner diameter and a length in the direction of said aorta suitable for surrounding at least an effective portion of said ESG; and
(ii) a deformed state suitable for laparoscopic delivery of said EVW from a location outside of said subject'"'"'s body to a location around said aorta, and vice versa; andat least one medical textile member adapted to at least partially encircle a segment of said aneurysmatic aorta in proximity to the renal arteries, said medical textile member (a) being disposed adjacent to said EVW-SM and being securely attached thereto, and (b) comprising at least one internal macroporous layer, which comprises a polymer mesh characterized by pores ranging in dimension from 100 μ
m to 2 mm, the macroporous layer being adapted by means of size and shape to be positioned directly over said aneurysmatic abdominal aorta, and shaped so as to define voids dimensioned to allow free tissue ingrowth therethrough,wherein said EVW-SM and either said ESG-SM or said FFG are in reversible attachment therebetween by one or more physical members connecting directly between said ESG and said EVW, so that dislocation of the kit along the aorta is avoided. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for treating an aneurysmatic aorta, comprising:
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identifying a subject suffering from an aneurysm of the abdominal aorta; providing a fastenable implantable kit for treating said aneurysmatic abdominal aorta, comprising at least (i) an endovascular stent-graft (ESG) comprising;
(a) a structural member (ESG-SM) adjustable between an expanded state and a radially-compressed state; and
(b) a fluid flow guide (FFG), substantially impervious to fluids and adjustable between an expanded state and a radially-compressed state;
said FFG including a proximal region along which the fluid flow guide is tubular to provide a primary conduit; and
(ii) an extra-vascular wrapping (EVW), said EVW having at least one structural member (EVW-SM), capable of reversibly interchanging between (x) a generally cylindrical expanded state characterized by an inner diameter and a length in the direction of said aorta suitable for surrounding at least an effective portion of said implanted ESG; and
(y) a deformed state suitable for laparoscopic delivery of said EVW from a location outside of said subject'"'"'s body to a location around said aorta, and vice versa; andintroducing said EVW in said deformed state through a laparoscopic working channel to an abdominal location adjacent to renal arteries of said abdominal aorta of said subject; laparoscopically positioning said EVW around said aorta, in a vicinity of said renal arteries; endovascularly placing the ESG into said aneurysmatic aorta; and connecting directly between said ESG in said aneurysmatic aorta and said EVW around said aorta, using one or more physical members. - View Dependent Claims (14)
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Specification