公开(公告)号：US20240139391A1

公开(公告)日：2024-05-02

申请号：US18384326

申请日：2023-10-26

申请人： Beihang University

发明人： Zengsheng CHEN ,  Yubo FAN ,  Xiaoyan DENG

IPC分类号： A61M1/16 ,  B01D63/04

CPC分类号： A61M1/1698 ,  A61M1/1625 ,  A61M1/1629 ,  B01D63/04 ,  A61M2202/0007 ,  A61M2202/0028 ,  A61M2202/0208 ,  A61M2205/02 ,  Y10S261/28

摘要： Disclosed is a blood oxygenator. The blood oxygenator includes a blood inlet chamber, and a housing. A hollow cavity is arranged in the housing, and includes a heat exchange zone and a gas exchange zone. Multiple heat exchange filaments are arranged in the heat exchange zone. Multiple hollow fibrous membrane fibers are arranged in the gas exchange zone. The blood inlet chamber includes an inverted conical side wall and an end surface hermetically connected to an opening at one end of the inverted conical side wall, an opening at the other end of the inverted conical side wall is hermetically connected to one end of the housing, and the other end of the housing is hermetically connected with a cover body. The cover body is provided with a blood outlet, and the end surface is provided with a spiral liquid inlet pipe coaxial with the blood inlet chamber.

公开(公告)号：US20230347032A1

公开(公告)日：2023-11-02

申请号：US17993285

申请日：2022-11-23

申请人： Beihang University

发明人： Zengsheng CHEN ,  Xingji FU ,  Yubo FAN ,  Xiaoyan DENG

IPC分类号： A61M1/16

CPC分类号： A61M1/1698 ,  A61M1/1621

摘要： Disclosed is a membrane oxygenator, comprising a housing, and a blood-oxygen exchange chamber arranged in the housing. A liquid inlet side of the housing is provided with at least two blood inlets, and a liquid outlet side of the housing is provided with at least two blood outlets. The liquid inlet side and the liquid outlet side are respectively located at either side of the housing. Projections of blood inlets at the liquid outlet side do not coincide with blood outlets. By designing the shape of the blood-oxygen exchange chamber, blood inlets and blood outlets, and a blood inlet porous baffle of the membrane oxygenator in a mode fits to the shape design of the blood-oxygen exchange chamber and blood inlets, the effects of evenly distributing the blood flow to enable full blood-gas exchange, relieving the blood stasis and the like are achieved, and thus reduce the clinical thrombosis risk.

公开(公告)号：US20230310831A1

公开(公告)日：2023-10-05

申请号：US17993363

申请日：2022-11-23

申请人： Beihang University

发明人： Zengsheng CHEN ,  Yuan LI ,  Yubo FAN ,  Xiaoyan DENG

IPC分类号： A61M60/232 ,  A61M60/113 ,  A61M60/419 ,  A61M60/806 ,  A61M60/38

CPC分类号： A61M60/232 ,  A61M60/113 ,  A61M60/419 ,  A61M60/806 ,  A61M60/38

摘要： A centrifugal impeller for a blood pump, and a blood pump are provided. The centrifugal impeller comprises a circular base plate, centrifugal blades, and a supporting structure. A through hole is formed in the middle of the base plate to form a secondary flow path. The centrifugal blades are arranged on the upper surface of the base plate, each centrifugal blade is a banana-shaped blade which is thick in middle and thin at both ends, and a wrap angle of each centrifugal blade is greater than or equal to 90°, and the centrifugal blades extend radially from the outer edge of the through hole to the periphery of the base plate. The supporting structure comprises a supporting shaft arranged at the center of the through hole and supporting blades, one end of each supporting blade is connected to the supporting shaft, and another end is connected to the base plate.