Deploying split-tip hemodialysis catheter in a right atrium
AssigneePristine Access Technologies LTD.
InventorsMichael Gabriel Tal, Ron Livne, Rotem Neeman
Life of this patent
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Abstract
A split-tip catheter and methods for deploying a split-tip catheter in a right atrium are provided. The catheter is configured with a distal portion including a first and a second distal end regions elastically divergable from alignment along a splitting plane to regain a relaxed configuration. The first distal end region terminates in a first tip having a first forward opening, and the second distal end region terminates in a second tip having a second forward opening. Catheter deployment may include directing the first forward opening generally towards an anterior right atrium wall portion and applying the first forward opening to withdraw blood from the right atrium.
Claims11
A method comprising:
- providing a split-tip catheter comprising a first lumen and a second lumen having a shared boundary from a proximal junction to a distal junction, the first lumen and the second lumen split at the distal junction into a first distal end region terminating in a first tip and a second distal end region terminating in a second tip, wherein the split-tip catheter is configured to have the first distal end region and the second distal end region elastically diverge from alignment along a splitting plane to regain a relaxed configuration;
- delivering the first distal end region confined to alignment with the second distal end region in a superior vena cava opened to a right atrium of a subject;
- releasing the first distal end region from alignment with the second distal end region, in the right atrium, by allowing the first distal end region to diverge along the splitting plane with the first tip shifting towards an anterior wall portion of the right atrium;
- and
- withdrawing blood from the right atrium through a first forward opening provided at the first tip, wherein the first distal end region is configured for withdrawing blood only from the first forward opening.
A split-tip catheter for hemodialysis comprising:
- a first lumen extending along a first longitudinal axis and a second lumen extending along a second longitudinal axis, the first lumen and the second lumen having a shared boundary from a proximal junction to a distal junction, wherein:
- the first longitudinal axis and the second longitudinal axis are aligned with a shared boundary longitudinal axis from the proximal junction to the distal junction;
- the first lumen and the second lumen split at the distal junction into a first distal end region terminating in a first tip and a second distal end region terminating in a second tip,
- the first distal end region and the second distal end region elastically diverge from alignment along a splitting plane to regain a relaxed configuration, and
- in the relaxed configuration the first longitudinal axis is directed away from the shared boundary longitudinal axis along the first distal end region and the second longitudinal axis is directed away from the shared boundary longitudinal axis along the second distal end region.
Dependencies are inferred from the claim text.