Delivery and exchange catheter for storing guidewire
First Claim
Patent Images
1. A support catheter comprising:
- a catheter body having a length in the range from 100 cm to 180 cm, a proximal region, a distal region, and a single contiguous lumen extending through the proximal and distal regions, the single contiguous lumen having a proximal portion through the proximal region of the catheter body and a distal portion through the distal region of the catheter body;
wherein the proximal region with the proximal portion of the single contiguous lumen and the distal region with the distal portion of the single contiguous lumen are configured to extend into a blood vessel through a vasculature access site;
wherein a cross-sectional area of the proximal portion of the single contiguous lumen is larger than a cross-sectional area of the distal portion of the single contiguous lumen so that two or more devices can be held in the proximal portion of the single contiguous lumen while the distal portion of the single contiguous lumen is large enough to accommodate only one of the devices; and
wherein the proximal portion of the single contiguous lumen of the catheter body is configured to simultaneously accommodate the two or more devices therein while positioned within the blood vessel.
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Abstract
A support catheter for stowing and exchanging guidewires and other working elements comprises a catheter body having a proximal region and a distal region. A single, contiguous lumen is formed from the proximal region through the distal region and has a larger proximal cross-sectional area than distal cross-sectional area.
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Citations
24 Claims
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1. A support catheter comprising:
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a catheter body having a length in the range from 100 cm to 180 cm, a proximal region, a distal region, and a single contiguous lumen extending through the proximal and distal regions, the single contiguous lumen having a proximal portion through the proximal region of the catheter body and a distal portion through the distal region of the catheter body; wherein the proximal region with the proximal portion of the single contiguous lumen and the distal region with the distal portion of the single contiguous lumen are configured to extend into a blood vessel through a vasculature access site; wherein a cross-sectional area of the proximal portion of the single contiguous lumen is larger than a cross-sectional area of the distal portion of the single contiguous lumen so that two or more devices can be held in the proximal portion of the single contiguous lumen while the distal portion of the single contiguous lumen is large enough to accommodate only one of the devices; and wherein the proximal portion of the single contiguous lumen of the catheter body is configured to simultaneously accommodate the two or more devices therein while positioned within the blood vessel. - 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 for exchanging devices in a body lumen, said method comprising:
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introducing a support catheter to a target location in the body lumen, the support catheter including a catheter body having a single contiguous lumen having a proximal portion through a proximal region of the catheter body and a distal portion through the distal region of the catheter body; simultaneously accommodating first and second elongate devices in the proximal portion of the single contiguous lumen of the support catheter with the proximal region of the catheter body positioned in the body lumen; and selectively advancing one of the first and second elongate devices at a time through the distal portion of the single contiguous lumen of the support catheter to the target location, wherein a cross-sectional area of the distal portion of the single contiguous lumen is less than a cross-sectional area of the proximal portion of the single contiguous lumen. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification