US 12,268,802 B2
Oxygenator for use with extracorporeal support of premature fetus
Marcus Graeme Davey, Philadelphia, PA (US); and Alan Flake, Philadelphia, PA (US)
Assigned to The Children's Hospital of Philadelphia, Philadelphia, PA (US)
Appl. No. 17/603,173
Filed by THE CHILDREN'S HOSPITAL OF PHILADELPHIA, Philadelphia, PA (US)
PCT Filed Apr. 8, 2020, PCT No. PCT/US2020/027137
§ 371(c)(1), (2) Date Oct. 12, 2021,
PCT Pub. No. WO2020/210275, PCT Pub. Date Oct. 15, 2020.
Claims priority of provisional application 62/831,311, filed on Apr. 9, 2019.
Prior Publication US 2022/0193318 A1, Jun. 23, 2022
Int. Cl. A61M 1/16 (2006.01); A61G 11/00 (2006.01); A61M 1/36 (2006.01)
CPC A61M 1/1698 (2013.01) [A61G 11/00 (2013.01); A61M 1/3623 (2022.05); A61M 1/3666 (2013.01); A61M 2240/00 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An oxygenator for use with an extracorporeal circuit, the oxygenator comprising:
a housing defining a cavity therein, the cavity being configured to receive blood from a fetus; and
a gas exchanger disposed within the cavity, the gas exchanger being configured to receive a sweep gas and to contact the blood within the cavity, such that at least oxygen gas and carbon dioxide gas is permitted to diffuse between the blood and the gas exchanger, the gas exchanger including a plurality of fibers,
wherein each fiber has a receiving end, an emitting end opposite the receiving end, and a channel extending between the receiving end and the emitting end, and
wherein each fiber is configured to receive a sweep gas at the receiving end and pass the sweep gas through the channel and out of the emitting end
wherein the gas exchanger is substantially cylindrical having two opposing end planes; the oxygenator has a direction of flow of blood through the gas exchanger; and
wherein each of the plurality of fibers extends between the two opposing end planes and is arranged perpendicular to the direction of flow of blood.