Infusion catheter having an atraumatic tip
First Claim
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1. Apparatus suitable for disrupting a vascular occlusion adhered to a vessel wall, the apparatus comprising:
- an infusion catheter having proximal and distal ends and a lumen extending therebetween, an atraumatic tip disposed at the distal end, and at least one delivery port disposed proximal of the atraumatic tip in fluid communication with the lumen, wherein the infusion catheter is configured to infuse fluid into the occlusion so that the fluid reduces adhesion of the occlusion to an intima of the vessel wall.
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Accused Products
Abstract
The present invention is directed to apparatus and methods for treating a vascular occlusion by providing an infusion catheter having an atraumatic tip and at least one delivery port configured to infuse fluid into the occlusion. The fluid that is infused dilutes the occlusion and reduces adhesion of the occlusion to an intima of the vessel wall, thereby causing the occlusion to dislodge. Emboli generated in the process are directed into an emboli removal catheter for removal.
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Citations
31 Claims
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1. Apparatus suitable for disrupting a vascular occlusion adhered to a vessel wall, the apparatus comprising:
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an infusion catheter having proximal and distal ends and a lumen extending therebetween, an atraumatic tip disposed at the distal end, and at least one delivery port disposed proximal of the atraumatic tip in fluid communication with the lumen, wherein the infusion catheter is configured to infuse fluid into the occlusion so that the fluid reduces adhesion of the occlusion to an intima of the vessel wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. Apparatus suitable for treating an occlusion adhered to a vessel wall, the apparatus comprising:
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an infusion catheter having proximal and distal ends and a lumen extending therebetween, an atraumatic tip disposed at the distal end, and at least one delivery port disposed proximal of the atraumatic tip in fluid communication with the lumen; and
a centering device having proximal and distal ends and a lumen extending therebetween, the centering device comprising a plurality of deployable struts disposed at the distal end, the lumen adapted to permit the infusion catheter to pass therethrough, wherein the infusion catheter is configured to infuse fluid into the occlusion so that the fluid reduces adhesion of the occlusion to an intima of the vessel wall. - View Dependent Claims (17, 18, 20, 21, 22, 23, 24)
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19. The apparatus of 16 wherein the deployable struts comprise a nickel-titanium alloy.
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25. A method for treating an occlusion adhered to a vessel wall, the method comprising:
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providing an infusion catheter having proximal and distal ends, a lumen extending therebetween, an atraumatic tip disposed at the distal end, and at least one delivery port disposed proximal of the atraumatic tip in fluid communication with the lumen;
advancing the atraumatic tip through the occlusion;
positioning the delivery port at a desired location within the occlusion; and
infusing fluid into the occlusion via the delivery port so that the fluid reduces adhesion of the occlusion to an intima of the vessel wall. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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Specification