US 12,144,937 B2
Catheter systems and methods
Jeremy B. Wiygul, Flushing, NY (US); Simon Dunham, New York, NY (US); and Bobak Mosadegh, New York, NY (US)
Assigned to CORNELL UNIVERSITY, Ithaca, NY (US)
Appl. No. 17/630,785
Filed by Cornell University, Ithaca, NY (US)
PCT Filed Jul. 31, 2020, PCT No. PCT/US2020/044526
§ 371(c)(1), (2) Date Jan. 27, 2022,
PCT Pub. No. WO2021/026003, PCT Pub. Date Feb. 11, 2021.
Claims priority of provisional application 62/882,196, filed on Aug. 2, 2019.
Prior Publication US 2022/0288353 A1, Sep. 15, 2022
Int. Cl. A61M 25/00 (2006.01); A61M 25/10 (2013.01)
CPC A61M 25/0074 (2013.01) [A61M 25/0017 (2013.01); A61M 25/0097 (2013.01); A61M 25/1011 (2013.01); A61M 2025/0037 (2013.01); A61M 2025/0079 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A catheter system comprising:
a main tubular structure having an interior lumen, a proximal end, and a distal end;
an actuation balloon located closer to the distal end than to the proximal end; and
an eyelet, located proximate to the actuation balloon, that extends through the main tubular structure from an exterior surface through to the interior lumen, wherein the eyelet is configured to be closed when the actuation balloon is in a deflated configuration and to be opened by inflation of the actuation balloon to an inflated configuration; and
an outer layer disposed on the exterior surface of the main tubular structure, wherein the outer layer comprises a fenestration aligned with the eyelet, wherein the outer layer is configured to be pulled by the inflation of the actuation balloon, and wherein the fenestration is configured to be pulled open by the pull on the outer layer to open the eyelet.