Balloon catheter with perfusion lumen
First Claim
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1. A catheter comprising:
- an elongate member sized for insertion within a body vessel and having a perfusion lumen extending through the elongate member to at least one distal exit opening, wherein the elongate member includes a distal portion structured so that, during perfusion, the perfusion lumen has, adjacent the at least one distal exit opening, an expanded diameter portion that decreases pressure of perfusion fluid exiting the at least one distal exit opening; and
an expandable balloon disposed about a distal portion of the elongate member.
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Abstract
A catheter including an elongate member sized for insertion within a body vessel and having a perfusion lumen extending through the elongate member to at least one distal exit opening and an expandable balloon disposed about a distal portion of the elongate member is described. A method of performing a balloon catheter procedure is described. A system for performing a balloon catheter procedure is also described
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Citations
24 Claims
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1. A catheter comprising:
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an elongate member sized for insertion within a body vessel and having a perfusion lumen extending through the elongate member to at least one distal exit opening, wherein the elongate member includes a distal portion structured so that, during perfusion, the perfusion lumen has, adjacent the at least one distal exit opening, an expanded diameter portion that decreases pressure of perfusion fluid exiting the at least one distal exit opening; and
an expandable balloon disposed about a distal portion of the elongate member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of performing a balloon catheter procedure, the method comprising:
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providing a balloon catheter into a body vessel and to a target area within the vessel, the catheter comprising an elongate member and having a perfusion lumen extending through the elongate member to at least one distal exit opening, wherein the elongate member includes a distal portion structured so that, during perfusion, the perfusion lumen has, adjacent the at least one distal exit opening, an expanded diameter portion that decreases pressure of perfusion fluid exiting the at least one distal exit opening, the catheter further comprising an expandable balloon disposed about a distal portion of the elongate member; and
passing fluid through the perfusion lumen and out of the at least one distal exit opening. - View Dependent Claims (18, 19, 21)
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20. The method of 17, wherein the procedure is a percutaneous transluminal coronary angioplasty procedure.
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22. A system for performing a balloon catheter procedure, the system comprising:
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a catheter comprising a) an elongate member and having a perfusion lumen extending through the elongate member to at least one distal exit opening, wherein the elongate member includes a distal portion structured so that, during perfusion, the perfusion lumen has, adjacent the at least one distal exit opening, an expanded diameter portion that decreases pressure of perfusion fluid exiting the at least one distal exit opening, and b) an expandable balloon disposed about a distal portion of the elongate member; and
a control system that controls the delivery of fluid into the catheter perfusion lumen. - View Dependent Claims (23, 24)
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Specification