MULTI-PIVOT THROMBECTOMY DEVICE
First Claim
1. A device for retrieving vascular debris in a vasculature comprising:
- at least two segments radially expandable from a collapsed state to an expanded state, each of the at least two segments having (a) a waist comprising a radially largest region of the segment and (b) two longitudinal ends;
at least one intermediate portion, each of the at least one intermediate portion comprising a pivot that connects adjacent segments, each pivot having a diameter less than a diameter of the waist;
a tether attached to a proximalmost of the at least two segments and configured to position the at least two segments;
wherein each of the at least two segments comprises at least two struts that extend longitudinally from a proximal end to a distal end of the segment, the at least two struts tapering from the waist radially inward toward a longitudinal axis of the device as the at least two struts approach an adjacent intermediate portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A device may be used for capturing and retrieving vascular debris. The device may comprise: at least two segments radially expandable from a collapsed state to an expanded state, each of the at least two segments having (a) a waist comprising a radially largest region of the segment and (b) two longitudinal ends; at least one intermediate portion, each of the at least one intermediate portion comprising a pivot that connects adjacent segments, each pivot having a diameter less than a diameter of the waist; a tether attached to a proximalmost of the at least two segments and configured to position the at least two segments; wherein each of the at least two segments comprises at least two struts that extend longitudinally from a proximal end to a distal end of the segment, the at least two struts tapering from the waist radially inward toward a longitudinal axis of the device as the at least two struts approach an adjacent intermediate portion.
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Citations
26 Claims
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1. A device for retrieving vascular debris in a vasculature comprising:
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at least two segments radially expandable from a collapsed state to an expanded state, each of the at least two segments having (a) a waist comprising a radially largest region of the segment and (b) two longitudinal ends; at least one intermediate portion, each of the at least one intermediate portion comprising a pivot that connects adjacent segments, each pivot having a diameter less than a diameter of the waist; a tether attached to a proximalmost of the at least two segments and configured to position the at least two segments; wherein each of the at least two segments comprises at least two struts that extend longitudinally from a proximal end to a distal end of the segment, the at least two struts tapering from the waist radially inward toward a longitudinal axis of the device as the at least two struts approach an adjacent intermediate portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for retrieving vascular debris in a vasculature comprising:
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at least three segments expandable from a collapsed state to an expanded state, each of the at least three segments having (a) a waist comprising a radially largest region of the segment and (b) two longitudinal ends; at least two intermediate portions, each of the at least two intermediate portions comprising a pivot that connects adjacent segments, each pivot having a diameter less than a diameter of the waist; a sheath configured to encase the at least three segments in the collapsed state; and a tether attached to a proximalmost of the at least three segments and configured to position the at least three segments relative to the sheath. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of retrieving vascular debris from a vasculature comprising:
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inserting into the vasculature of a patient at least a portion of a sheath comprising a distal opening and encasing at least two segments expandable from a collapsed state to an expanded state, each of the at least two segments having a waist comprising a radially largest region of the segment, two longitudinal ends, and at least one intermediate portion comprising a pivot connecting the segment to an axially adjacent segment; expanding at least a portion of the at least two segments into vascular debris; and retrieving the at least two segments and the vascular debris to within the sheath. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification