Method and apparatus for increasing blood flow through an obstructed blood vessel
First Claim
1. A method of removing an obstruction from a blood vessel with an expandable member that is attached to a delivery system, the expandable member having a proximal end, a distal end and a tubular body between the proximal end and the distal end, the tubular body being made of a mesh having a plurality of interstices, the method comprising the steps of:
- positioning the tubular body of the expandable member radially adjacent to an obstruction within a blood vessel;
expanding the expandable member such that a portion of the tubular body comes into contact with a portion of the obstruction;
dislodging a portion of the obstruction to enhance blood flow through the blood vessel past the obstruction; and
removing the expandable member from the blood vessel while the expandable member retains at least a portion of the obstruction from the blood vessel;
wherein the step of removing the expandable member is performed with the expandable member in a fully expanded position.
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Accused Products
Abstract
A method of increasing blood flow through an obstructed blood vessel includes providing an expandable member substantially made of a mesh having a plurality of interstices. The expandable member is inserted into the blood vessel, positioned within the blood vessel with the proximal member end upstream of the distal member end and the member body located radially adjacent at least a portion of an obstruction, and expanded to bring at least a portion of the member body into contact with the obstruction. An outward radial force is exerted on the obstruction to dislodge at least one fragment from the obstruction and to enhance blood flow through the blood vessel past the obstruction. The at least one fragment is passed through at least one interstice of the member body in the radial direction, and is selectively retained within the expandable member.
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Citations
21 Claims
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1. A method of removing an obstruction from a blood vessel with an expandable member that is attached to a delivery system, the expandable member having a proximal end, a distal end and a tubular body between the proximal end and the distal end, the tubular body being made of a mesh having a plurality of interstices, the method comprising the steps of:
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positioning the tubular body of the expandable member radially adjacent to an obstruction within a blood vessel; expanding the expandable member such that a portion of the tubular body comes into contact with a portion of the obstruction; dislodging a portion of the obstruction to enhance blood flow through the blood vessel past the obstruction; and removing the expandable member from the blood vessel while the expandable member retains at least a portion of the obstruction from the blood vessel; wherein the step of removing the expandable member is performed with the expandable member in a fully expanded position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification