Subintimal re-entry catheter and retrograde recanalization
First Claim
Patent Images
1. A catheter for recanalizing a blood vessel having an occlusion therein, the catheter comprising:
- a catheter shaft having a longitudinal axis, a proximal end, a distal end, and a distal end portion proximate the distal end;
an expandable member coupled to the distal end portion of the catheter shaft, wherein the expandable member includes an inflatable first wing portion and an inflatable second wing portion, each of the first and second wing portions extending laterally away from the longitudinal axis on opposing sides of the longitudinal axis; and
a flexible tubular member extending from the catheter shaft and along an exterior of the expandable member;
wherein expansion of the expandable member deflects the flexible tubular member into a deflected configuration away from a longitudinal axis of the catheter shaft.
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Abstract
A catheter for recanalizing a blood vessel having an occlusion therein via a subintimal pathway. The catheter includes a catheter shaft having an inflatable balloon mounted to the distal end portion of the catheter shaft. A flexible tubular member extends from the catheter shaft and along an exterior of the inflatable balloon. Inflation of the inflatable balloon deflects the flexible tubular member into a deflected configuration away from a longitudinal axis of the catheter shaft to effect re-entry into the true lumen distal of the occlusion.
107 Citations
16 Claims
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1. A catheter for recanalizing a blood vessel having an occlusion therein, the catheter comprising:
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a catheter shaft having a longitudinal axis, a proximal end, a distal end, and a distal end portion proximate the distal end; an expandable member coupled to the distal end portion of the catheter shaft, wherein the expandable member includes an inflatable first wing portion and an inflatable second wing portion, each of the first and second wing portions extending laterally away from the longitudinal axis on opposing sides of the longitudinal axis; and a flexible tubular member extending from the catheter shaft and along an exterior of the expandable member; wherein expansion of the expandable member deflects the flexible tubular member into a deflected configuration away from a longitudinal axis of the catheter shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A catheter assembly for navigating through a lumen of a blood vessel to an occlusion in an antegrade direction that is configured to redirect an atherectomy device toward the occlusion in a retrograde direction in the lumen of the blood vessel, the catheter assembly comprising:
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a catheter shaft having a longitudinal axis, a proximal end, a distal end and a distal end portion proximate the distal end; an inflatable balloon secured to the distal end portion of the catheter shaft, wherein the balloon includes an inflatable first wing portion and an inflatable second wing portion, each of the first and second inflatable wing portions extending laterally away from the longitudinal axis on opposing sides of the longitudinal axis; and a tubular member extending distally from a location on the catheter shaft proximal of the inflatable balloon, the tubular member configured to be deflectable away from the catheter shaft into a curved configuration upon inflation of the inflatable balloon. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification