US 12,350,447 B1
Catheter construction
Brian B. Martin, Santa Cruz, CA (US)
Assigned to Maduro Discovery, LLC, Los Gatos, CA (US)
Filed by Maduro Discovery, LLC, Campbell, CA (US)
Filed on Jan. 9, 2024, as Appl. No. 18/407,826.
Application 17/173,003 is a division of application No. 16/902,154, filed on Jun. 15, 2020, granted, now 11,077,285, issued on Aug. 3, 2021.
Application 18/407,826 is a continuation of application No. 18/455,191, filed on Aug. 24, 2023.
Application 18/455,191 is a continuation of application No. 17/303,833, filed on Jun. 8, 2021, granted, now 11,865,273, issued on Jan. 9, 2024.
Application 17/303,833 is a continuation of application No. 17/173,003, filed on Feb. 10, 2021, granted, now 11,179,546, issued on Nov. 23, 2021.
Claims priority of provisional application 62/862,035, filed on Jun. 15, 2019.
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 25/01 (2006.01); A61M 25/00 (2006.01); A61M 25/09 (2006.01)
CPC A61M 25/0141 (2013.01) [A61M 25/005 (2013.01); A61M 25/0144 (2013.01); A61M 2025/09133 (2013.01); A61M 2210/0693 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A medical tubing comprising:
a plurality of polymer sections forming a composite layer, the plurality of polymer sections extending spirally along an axial length of the composite layer, where each polymer section of the plurality of polymer sections is located next to at least one adjacent polymer section;
wherein each polymer section of the plurality of polymer sections comprises a structural property respectively and where the structural property of at least two polymer sections is different;
wherein a first axial region of the composite layer comprises a first sequence of polymer sections including at least a first polymer and a second polymer, and wherein a second axial region of the composite layer comprises a second sequence of polymer sections including at least the first polymer and a third polymer, such that the first sequence of polymer sections is different than the second sequence of polymer sections causing a structural property of the first axial region to be different than a structural property of the second axial region.