Guidewire for crossing occlusions or stenoses
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods for crossing stenosis, partial occlusions, or complete occlusions within a body lumen. The systems generally include an elongate member such as a hollow guidewire that houses a rotatable and translatable drive shaft. The drive shaft typically has a distal portion that is advanced to create a path in the occlusive material that is large enough to allow the hollow guidewire to cross the occlusive material.
153 Citations
108 Claims
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1. -79. (canceled)
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80. A method of crossing an occlusion or stenosis within a body lumen comprising:
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positioning a hollow guidewire into the body lumen adjacent the occlusion or stenosis;
rotating a drive shaft within an inner lumen of the hollow guidewire so that a distal tip of the drive shaft extends distally beyond the hollow guidewire; and
advancing the distal tip of the drive shaft into the occlusion or stenosis in the body lumen to create a path in the occlusion or stenosis. - View Dependent Claims (81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95)
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96. A method comprising:
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advancing a guidewire through a body lumen;
advancing a catheter over the guidewire and through the body lumen;
exchanging the guidewire with a hollow guidewire that comprises a tissue removal element at or near a distal end of the hollow guidewire. - View Dependent Claims (97, 98, 99, 101, 102, 103, 104)
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100. The method of 98 comprising aspirating the body lumen through the inner lumen of the hollow guidewire.
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105. A steerable, hollow guidewire comprising:
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an elongate hollow guidewire body comprising an inner lumen;
means for creating a path through an occlusion in a body lumen, the means positioned at or near a distal end of the elongated hollow guidewire body and extending through the inner lumen; and
one or more pull wires coupled to a distal end of the elongate hollow guidewire body, wherein actuation of the one or more pull wires deflects the distal end of the elongate hollow guidewire body. - View Dependent Claims (106, 107, 108)
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Specification