US 12,453,842 B2
Catheters adapted for agent delivery
Thomas Roewer, Sunnyvale, CA (US); and Michael P. Allen, Los Altos, CA (US)
Assigned to Embolx, Inc., Sunnyvale, CA (US)
Appl. No. 18/043,873
Filed by EMBOLX, INC., Sunnyvale, CA (US)
PCT Filed Jun. 29, 2022, PCT No. PCT/US2022/035545
§ 371(c)(1), (2) Date Mar. 2, 2023,
PCT Pub. No. WO2023/278594, PCT Pub. Date Jan. 5, 2023.
Claims priority of provisional application 63/202,989, filed on Jul. 2, 2021.
Prior Publication US 2023/0226328 A1, Jul. 20, 2023
Int. Cl. A61M 25/10 (2013.01); A61M 25/00 (2006.01); A61M 25/09 (2006.01)
CPC A61M 25/1018 (2013.01) [A61M 25/0023 (2013.01); A61M 25/09 (2013.01); A61M 2025/0042 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A catheter for delivering an agent into a patient, the catheter comprising:
an outer shaft comprising one or more agent delivery ports;
a guidewire channel within the outer shaft, the guidewire channel defining a guidewire lumen sized and configured to receive a guidewire in the guidewire lumen;
a balloon inflation channel within the outer shaft, the balloon inflation channel defining a balloon inflation lumen in fluid communication with an internal volume of an inflatable balloon; and
an agent delivery lumen defined by an inner surface of the outer shaft, an outer surface of the guidewire channel and an outer surface of the balloon inflation channel,
the agent delivery lumen in communication with the one or more agent delivery ports, and the one or more agent delivery ports proximal to at least a portion of the inflatable balloon, and
wherein a proximal portion of the guidewire channel is deformable between an open guidewire configuration and a collapsed, agent-delivery configuration.