US 11,744,986 B2
Catheter having an expandable lumen and method of manufacture
Michael Sansoucy, Wrentham, MA (US)
Assigned to Mozarc Medical US LLC, Minneapolis, MN (US)
Filed by MOZARC MEDICAL US LLC, Minneapolis, MN (US)
Filed on Feb. 8, 2019, as Appl. No. 16/270,678.
Application 14/748,392 is a division of application No. 12/826,795, filed on Jun. 30, 2010, abandoned.
Application 16/270,678 is a continuation of application No. 14/748,392, filed on Jun. 24, 2015, granted, now 10,238,836.
Claims priority of provisional application 61/222,561, filed on Jul. 2, 2009.
Prior Publication US 2019/0167946 A1, Jun. 6, 2019
Int. Cl. B29C 48/00 (2019.01); B29C 48/11 (2019.01); B29C 48/21 (2019.01); B29C 48/88 (2019.01); B29C 48/91 (2019.01); D01D 5/24 (2006.01); B29C 48/15 (2019.01); B29C 48/10 (2019.01); B29L 31/00 (2006.01); A61M 25/01 (2006.01); A61M 25/09 (2006.01); B29C 48/12 (2019.01); A61M 25/00 (2006.01)
CPC A61M 25/0102 (2013.01) [A61M 25/0009 (2013.01); A61M 25/0026 (2013.01); A61M 25/09 (2013.01); B29C 48/001 (2019.02); B29C 48/10 (2019.02); B29C 48/11 (2019.02); B29C 48/12 (2019.02); B29C 48/15 (2019.02); B29C 48/21 (2019.02); B29C 48/91 (2019.02); B29C 48/912 (2019.02); B29C 48/9105 (2019.02); D01D 5/24 (2013.01); A61M 2025/0024 (2013.01); A61M 2025/0025 (2013.01); A61M 2025/0031 (2013.01); A61M 2025/0035 (2013.01); A61M 2025/0037 (2013.01); B29L 2031/7542 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of manufacturing a multi-lumen catheter, the method comprising:
extruding a catheter body having a first lumen and at least one additional lumen, the catheter body being formed of a first material having a first melting temperature;
providing a second material on an inner surface of the first lumen, the second material having a melting temperature greater than the first material;
directing a fluid through the at least one additional lumen to move the first lumen to a collapsed configuration;
melting the first material without melting the second material while the first lumen is in the collapsed configuration; and
cooling the first material to allow the first material to set with the first lumen in the collapsed configuration,
wherein after cooling the first material, the first lumen is configured to receive a guidewire, and
wherein to receive the guidewire, the first lumen is configured to expand.