Endovascular graft
First Claim
Patent Images
1. A graft arrangement, comprising:
- a main graft having a proximal end and a distal end, the main graft further having a proximal orifice at the proximal end to be located in and when expanded to be supported by a vascular vessel;
at least one expandable peripheral artery graft;
the main graft also having at least one distal orifice at the distal end which when expanded serves to receive a proximal end of at least one expandable peripheral artery graft, wherein the main graft and the at least one expandable peripheral artery graft each comprises an expandable stent and at least one cover over and/or in the expandable stent; and
wherein a cross-sectional area of the distal orifice when expanded is sufficiently less than that of the proximal end of the at least one expandable peripheral artery graft when expanded within the distal orifice so as to form a seal between the grafts.
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Abstract
Disclosed is a medical device graft arrangement comprising a main graft and at least one peripheral graft wherein the grafts are expandable. Upon insertion of the peripheral graft(s) into the main graft, the peripheral grafts expand and seal the junction of the graft arrangement to provide fluid communication between the lumens of the main and peripheral grafts. The graft arrangement optionally has a cover folded in such a manner to provide further sealing.
249 Citations
20 Claims
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1. A graft arrangement, comprising:
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a main graft having a proximal end and a distal end, the main graft further having a proximal orifice at the proximal end to be located in and when expanded to be supported by a vascular vessel;
at least one expandable peripheral artery graft;
the main graft also having at least one distal orifice at the distal end which when expanded serves to receive a proximal end of at least one expandable peripheral artery graft, wherein the main graft and the at least one expandable peripheral artery graft each comprises an expandable stent and at least one cover over and/or in the expandable stent; and
wherein a cross-sectional area of the distal orifice when expanded is sufficiently less than that of the proximal end of the at least one expandable peripheral artery graft when expanded within the distal orifice so as to form a seal between the grafts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A graft arrangement, comprising:
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a) a main graft, the main graft being expandable and having a proximal orifice;
b) first and second expandable peripheral artery grafts;
c) the main graft also having a distal orifice end that when expanded receives at least one proximal end of the first and second expandable peripheral grafts;
d) wherein each graft comprises an expandable stent and at least one cover over and/or in the stent; and
e) wherein a cross-sectional area of the distal orifice when expanded is sufficiently less than the sum of a cross-sectional areas of the proximal ends of the peripheral grafts when expanded within the distal orifice, so as to form a seal with the distal orifice when the at least one peripheral graft is expanded therein. - View Dependent Claims (18, 19)
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20. A graft arrangement, comprising:
a main graft, the main graft being expandable and having a proximal orifice, the main graft having a distal orifice end which when expanded serves to receive proximal ends of a pair of expandable peripheral grafts, wherein each graft comprises an expandable stent and at least one cover over and/or in the stent, and wherein the cross-sectional area of the distal orifice when expanded is sufficiently less than the sum of the cross-sectional areas of the proximal ends of the peripheral grafts when expanded within the distal orifice so as to form a seal with the distal orifice when the pair of grafts are expanded therein.
Specification