Detachable segment stent
First Claim
1. A stent comprising an expandable framework and an electrical lead, the expandable framework comprising:
- a plurality of serpentine bands including a first serpentine band and a second serpentine band, adjacent serpentine bands connected by connector struts, each serpentine band comprising alternating peaks and valleys connected by band struts, the connector struts including permanent connector struts and disengageble connector struts;
the first serpentine band connected to the second serpentine band by at least one permanent connector strut extending from a valley of the first serpentine band to a peak of the second serpentine band;
each remaining valley of the first serpentine band connected to a peak of the second serpentine band by a disengagable connector strut;
wherein said electrical lead extends from said expandable framework and is electrically coupled directly to each of the disengagable connector struts such that the disengagable connector struts disengage by electrolytic detachment.
2 Assignments
0 Petitions
Accused Products
Abstract
An inventive repositionable stent may comprise a plurality of adjacent serpentine bands connected to one another by at least one permanent connector strut and by at least one disengagable connector strut. The stent may self-expand within a bodily lumen to an intermediate deployment diameter, wherein the stent is constrained from further expansion by the at least one disengagable connector strut. The stent may be repositioned within the bodily lumen while in the intermediate deployment configuration. The disengagable connector strut may be disengaged via electrolytic detachment, whereupon the stent may expand to a full deployment diameter.
-
Citations
18 Claims
-
1. A stent comprising an expandable framework and an electrical lead, the expandable framework comprising:
-
a plurality of serpentine bands including a first serpentine band and a second serpentine band, adjacent serpentine bands connected by connector struts, each serpentine band comprising alternating peaks and valleys connected by band struts, the connector struts including permanent connector struts and disengageble connector struts; the first serpentine band connected to the second serpentine band by at least one permanent connector strut extending from a valley of the first serpentine band to a peak of the second serpentine band; each remaining valley of the first serpentine band connected to a peak of the second serpentine band by a disengagable connector strut; wherein said electrical lead extends from said expandable framework and is electrically coupled directly to each of the disengagable connector struts such that the disengagable connector struts disengage by electrolytic detachment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A stent comprising:
a cylindrical metal framework having a plurality of cells and an electrical lead, said framework comprising a first serpentine band, a second serpentine band, at least one permanent connector strut and a plurality of disengageble connector struts, each serpentine band comprising alternating peaks and valleys connected by band struts, at least one of said permanent connector struts connecting a valley of the first serpentine band to a peak of the second serpentine band, the plurality of disengagable connector struts connecting the remaining valleys of the first serpentine band to the remaining peaks of the second serpentine band, the electrical lead attached to each of said disengagable connector struts;
wherein the number of cells decreases upon disengagement of said disengagable connector strut; and
wherein the mass of the metal in the metal framework decreases upon disengagement of said disengagable connector strut.- View Dependent Claims (13, 14, 15, 16, 17, 18)
Specification