METHODS FOR RESTORING BLOOD FLOW WITHIN BLOCKED VASCULATURE
1 Assignment
0 Petitions
Accused Products
Abstract
The devices and methods described herein relate to clearing of blockages within body lumens, such as the vasculature, by addressing the frictional resistance on the obstruction prior to attempting to translate and/or mobilize the obstruction within the body lumen.
211 Citations
167 Claims
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1-78. -78. (canceled)
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79. A method for removing an obstruction from a blood vessel, the method comprising the steps of:
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advancing an obstruction removal device comprising at least a plurality of filaments from a near end of the obstruction to beyond a far end of the obstruction;
expanding at least one filament towards a wall of the blood vessel;
withdrawing the plurality of filaments, such that the filament is located towards an exterior of and span across at least a portion of the obstruction; and
surrounding the obstruction with at least a portion of the obstruction removal device. - View Dependent Claims (80, 81, 82, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108)
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109-134. -134. (canceled)
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135. A method for removing an obstruction from a blood vessel, the method comprising the steps of:
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advancing an obstruction removal device within the blood vessel, where the obstruction removal device comprises a near and far connector each having a reduced profile and each having an expanded shape when unconstrained, where the obstruction removal device includes a plurality of filaments extending between the connectors;
positioning the far connector distal to the far end of the obstruction, such that the far connector expands towards the expanded shape in the vessel;
positioning the near connector proximal to the near end of the obstruction such that the near connector expands towards the expanded shape in the vessel and such that the filaments span across the obstruction;
spacing at least one of the filaments from an adjacent filament such that the respective filament separate about the obstruction;
ensnaring the obstruction removal device about the obstruction; and
withdrawing the obstruction removal device and obstruction from the blood vessel. - View Dependent Claims (136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153)
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154. A method for removing an obstruction from a blood vessel, the method comprising the steps of:
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advancing an obstruction removal device within the blood vessel, where the obstruction removal device comprises a near connector being constrained in a reduced profile and having an expanded profile when unconstrained, where the obstruction removal device includes a plurality of filaments connected to the near connector;
positioning the near connector proximal to the near end of the obstruction such that the near connector portion expands towards the expanded shape in the vessel and such that the filaments span across the obstruction;
spacing at least one of the filaments from an adjacent filament such that the respective filament separate about the obstruction;
ensnaring the obstruction removal device about the obstruction; and
withdrawing the obstruction removal device and obstruction from the blood vessel. - View Dependent Claims (155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167)
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Specification