US 12,133,958 B2
Deploying split-tip hemodialysis catheter in a right atrium
Michael Gabriel Tal, Tel Aviv (IL); Ron Livne, Tel-Aviv (IL); and Rotem Neeman, Nirit (IL)
Assigned to Pristine Access Technologies LTD., Franklin Lakes, NJ (US)
Filed by Pristine Access Technologies LTD, Tel-Aviv (IL)
Filed on Aug. 28, 2020, as Appl. No. 17/005,586.
Application 17/005,586 is a division of application No. 15/598,009, filed on May 17, 2017, granted, now 10,758,663.
Application 15/598,009 is a continuation in part of application No. 14/895,975, granted, now 10,363,390, issued on Jul. 30, 2019, previously published as PCT/US2014/040935, filed on Apr. 4, 2014.
Claims priority of provisional application 61/939,158, filed on Feb. 12, 2014.
Claims priority of provisional application 61/831,024, filed on Jun. 4, 2013.
Prior Publication US 2020/0390960 A1, Dec. 17, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 25/00 (2006.01); A61M 1/28 (2006.01); A61M 1/36 (2006.01); A61M 25/01 (2006.01); B29C 67/00 (2017.01); B29L 31/00 (2006.01)
CPC A61M 25/003 (2013.01) [A61M 1/285 (2013.01); A61M 1/3661 (2014.02); A61M 25/001 (2013.01); A61M 25/0029 (2013.01); A61M 25/0194 (2013.01); A61M 2025/0031 (2013.01); A61M 2025/0034 (2013.01); A61M 25/0071 (2013.01); A61M 2025/0073 (2013.01); A61M 2205/0216 (2013.01); A61M 2210/125 (2013.01); B29C 67/0022 (2013.01); B29L 2031/7542 (2013.01)] 13 Claims
OG exemplary drawing
 
1. 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; and
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 toward an anterior wall portion of the right atrium.