Single access flow-reversal catheter devices and methods
First Claim
Patent Images
1. A single-access catheter device comprising:
- a first catheter having a proximal and distal opening with a lumen therethrough;
a first occluder located within a distal region of the first catheter;
a second occluder located proximal to the first occluder;
a return port located proximal to the second occluder; and
a conduit connecting the distal opening of the first catheter to the return port,wherein the distance between the first occluder and the second occluder is adjustable, andwherein when the first occluder is expanded in a vessel, a pressure gradient causes blood to flow into the conduit through the distal opening of the first catheter;
wherein the conduit routes blood outside the vessel.
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Accused Products
Abstract
Embodiments herein include devices and methods directed toward creating reverse flow within a vessel and thereby providing protection against embolic debris. Embodiments comprise a catheter and a plurality of occluders that are expandable and adjustable within a lumen to create low-pressure areas that reroute blood flow and embolic debris therein.
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Citations
24 Claims
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1. A single-access catheter device comprising:
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a first catheter having a proximal and distal opening with a lumen therethrough; a first occluder located within a distal region of the first catheter; a second occluder located proximal to the first occluder; a return port located proximal to the second occluder; and a conduit connecting the distal opening of the first catheter to the return port, wherein the distance between the first occluder and the second occluder is adjustable, and wherein when the first occluder is expanded in a vessel, a pressure gradient causes blood to flow into the conduit through the distal opening of the first catheter; wherein the conduit routes blood outside the vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 23, 24)
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13. A single-access catheter device comprising:
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a first catheter having a proximal and distal region with a lumen therethrough; a first occluder located within the distal region of the first catheter; a second occluder located proximal to the first occluder; a return port located proximal to the second occluder; and a conduit connecting the distal end of the first catheter to the return port, and an introducer sheath having a lumen through which the first catheter passes through, wherein when the first occluder is expanded in a vessel, a pressure gradient causes blood to flow into the conduit through the distal end of the first catheter; and wherein the conduit comprises at least a portion of the interstitial space between the introducer sheath and the first catheter. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification