Overlapped stents for scaffolding, flexibility and MRI compatibility
First Claim
1. A tubular insert for a bodily vessel comprising an inner stent, and an outer stent, at least a portion of the inner stent disposed within the outer stent, the outer stent having a longitudinal axis and constructed so as to be free of any closed loops which are electrically conductive;
- and 2) disposed about the longitudinal axis such that the longitudinal axis passes through the closed loop;
the inner stent having a longitudinal axis and constructed so as to be free of any closed loops which are 1) electrically conductive; and
2) disposed about the longitudinal axis such that the longitudinal axis passes through the closed loop;
wherein there is a substantially electrically non-conductive connection between the inner stent and the outer stent.
2 Assignments
0 Petitions
Accused Products
Abstract
A tubular insert for a vessel comprises an inner stent and an outer stent. At least a portion of the inner stent is disposed within the outer stent. The outer stent has a longitudinal axis and is constructed to be free of any closed loops which are electrically conductive and which are disposed about the longitudinal axis such that the longitudinal axis passes through the closed loop. The inner stent has a longitudinal axis and is constructed so as to be free of any closed loops which are electrically conductive and which are disposed about the longitudinal axis such that the longitudinal axis passes through the closed loop. There is a substantially electrically non-conductive connection between the inner and outer stents. Desirably, a wall surface is defined by the outer and inner stents, and there are no closed, electrically conductive loops in the wall surface of the tubular insert.
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Citations
41 Claims
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1. A tubular insert for a bodily vessel comprising an inner stent, and an outer stent, at least a portion of the inner stent disposed within the outer stent, the outer stent having a longitudinal axis and constructed so as to be free of any closed loops which are electrically conductive;
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2) disposed about the longitudinal axis such that the longitudinal axis passes through the closed loop;
the inner stent having a longitudinal axis and constructed so as to be free of any closed loops which are 1) electrically conductive; and
2) disposed about the longitudinal axis such that the longitudinal axis passes through the closed loop;
wherein there is a substantially electrically non-conductive connection between the inner stent and the outer stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of imaging a tubular medical device, the tubular medical device being in the form of an outer stent and an inner stent, at least a portion of the inner stent disposed within the outer stent, the outer stent having a longitudinal axis and constructed so as to be free of any closed loops which are electrically conductive;
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2) disposed about the longitudinal axis such that the longitudinal axis passes through the closed loop;
the inner stent having a longitudinal axis and constructed so as to be free of any closed loops which are 1) electrically conductive; and
2) disposed about the longitudinal axis such that the longitudinal axis passes through the closed loop;
wherein there is a substantially electrically non-conductive connection between the inner stent and the outer stent, the method comprising the steps of;
a) disposing the tubular medical device within a magnetic resonance imager;
b) using the magnetic resonance imager to obtain a magnetic resonance image of the tubular medical device; and
c) removing the tubular medical device from the magnetic resonance imager. - View Dependent Claims (22, 23, 28, 29, 30, 31, 32)
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- 24. The method of clam 22 wherein the inner stent is a helical stent and the outer stent is a helical stent.
- 25. The method of clam 23 wherein the inner stent is a helical stent and the outer stent is a helical stent.
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33. A method of manufacturing a tubular medical device, comprising the steps of:
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a) providing a first stent, the first stent having a longitudinal axis and constructed so as to be free of any closed loops which are 1) electrically conductive; and
2) disposed about the longitudinal axis such that the longitudinal axis passes through the closed loop;
b) providing a second stent, the second stent having a longitudinal axis and constructed so as to be free of any closed loops which are 1) electrically conductive; and
2) disposed about the longitudinal axis such that the longitudinal axis passes through the closed loop;
wherein there is a substantially electrically non-conductive connection between the first stent and the second stent;
c) disposing at least a portion of the second stent within the first stent;
d) connecting the first stent and the second stent together via a connection which is substantially electrically non-conductive. - View Dependent Claims (34, 35, 36, 37, 38, 39)
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40. An expandable member for implantation in a bodily vessel, the expandable member comprising a multilayer tubular wall surface formed of a plurality of interconnected struts disposed at different distances from a centerline which runs along a longitudinal axis of the stent, the struts defining a plurality of interconnected cells, each cell including an electrically conducting portion and an electrically non-conductive portion, the tubular member including pathways which form closed paths about the circumference of the stent, each closed path including at least one substantially electrically non-conducting portion and one electrically conducting portion.
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41. An expandable member comprising a first stent and a second stent, the first stent formed of a member which winds from a proximal end of the first stent to a distal end of the first stent and back again to the proximal end, the second end formed of a member which winds from a distal end of the second stent to a proximal end of the second stent and back again to the distal end, whereon one of the first and second stents is disposed within the other of the first and second stents.
Specification