SINGLE ACCESS FLOW-REVERSAL CATHETER DEVICES AND METHODS
First Claim
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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 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, blood will flow into the conduit.
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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
42 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 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, blood will flow into the conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for providing embolic protection comprising the steps of providing a single access catheter device comprising:
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a catheter having a proximal and distal region with a lumen therethrough; a first occluder located within the distal region of the 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 catheter to return port; locating a first occluder in a vessel proximate to a treatment site; locating a second occluder in an aorta downstream of a renal artery; expanding the first occluder and the second occluder whereby blood flows through the conduit from a distal end of the catheter to the return port. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. 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 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, blood will flow into the conduit; and wherein the conduit comprises at least a portion of the interstitial space between the introducer sheath and the first catheter. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. 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; an introducer sheath having a proximal and distal region with a lumen through which the first catheter passes; a second occluder located on the introducer sheath and 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 return port. - View Dependent Claims (38)
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39. 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 within proximal of the first occluder; a return port located proximal to the second occluder; and a conduit connecting the distal end of first catheter to return port, wherein the return port comprises an opening located in a wall of the first catheter. - View Dependent Claims (40)
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41. 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 within the proximal region of the first catheter; a return port located proximal to the second occluder; and a conduit connecting the distal end of catheter to return port, wherein the second occluder is located on the first catheter. - View Dependent Claims (42)
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Specification