公开(公告)号：US20240238491A1

公开(公告)日：2024-07-18

申请号：US18014772

申请日：2021-06-07

Applicant: Nikkiso Co., Ltd.

Inventor： Takumi Homma ,  Kazuya Tsuji ,  Hikaru Chiaki ,  Yuya Menjoh ,  Kunihiko Akita

IPC: A61M1/16

CPC classification number: A61M1/1603

Abstract: Provided is a blood purification apparatus that returns blood in a blood circuit to a body. A blood purification apparatus includes: a blood circuit and a dialysate circuit coupled to each other through a blood purifier; an air introduction route coupled to the dialysate circuit; an air introducer provided to any of the dialysate circuit and the air introduction route and configured to set the dialysate circuit to a positive pressure by introducing air into the dialysate circuit through the air introduction route; and a controller configured to control the air introducer in such a way as to feed a dialysate from the dialysate circuit to the blood circuit, and to control the blood circuit and the dialysate circuit in such a way as to return blood in the blood circuit and the blood purifier to a body by feeding the dialysate from the dialysate circuit to the blood circuit.

公开(公告)号：US20230398277A1

公开(公告)日：2023-12-14

申请号：US18033825

申请日：2021-07-27

Applicant: Nikkiso Co., Ltd.

Inventor： Hikaru Chiaki ,  Takumi Homma ,  Yuya Menjoh ,  Kazuya Tsuji ,  Kunihiko Akita

IPC: A61M1/30 ,  A61M1/16 ,  A61M60/37 ,  A61M60/113 ,  A61M60/258 ,  A61M60/457

CPC classification number: A61M1/30 ,  A61M1/1601 ,  A61M1/1621 ,  A61M60/37 ,  A61M60/113 ,  A61M60/258 ,  A61M60/457

Abstract: Provided is a blood purification apparatus configured to keep a blood pump from being driven until a puncture needle is removed. The blood purification apparatus includes a blood circuit which is coupled with a puncture needle punctured into a patient and through which blood from the patient flows; a blood pump that is provided to the blood circuit and delivers liquid in the blood circuit by being driven; a needle removal detector that detects removal of the puncture needle from the patient; and a controller that starts a blood return process to return the blood in the blood circuit to the patient and puts the blood pump in a non-active state in response to determination that the blood return process ends.

公开(公告)号：US20230270923A1

公开(公告)日：2023-08-31

申请号：US18014620

申请日：2021-06-07

Applicant: Nikkiso Co., Ltd.

Inventor： Hikaru Chiaki ,  Yuya Menjoh ,  Kazuya Tsuji ,  Kunihiko Akita

IPC: A61M1/16

CPC classification number: A61M1/1647 ,  A61M1/1605 ,  A61M1/165

Abstract: A blood circuit and a dialysate circuit bidirectionally circulate a fluid through a blood purification membrane of a blood purifier, and include a first flow route that causes a dialysate to flow from the dialysate circuit into the blood circuit through a connection flow route connecting the dialysate circuit to the blood circuit while bypassing the blood purifier, and a second flow route that causes the dialysate to flow from the dialysate circuit into the blood circuit through the blood purification membrane. The controller performs control such that blood in the blood circuit is returned to the body by feeding the dialysate to one of these flow routes, determine if a flow amount of the dialysate reaches a predetermined flow amount, and control such that the blood in the blood circuit is returned to the body by feeding the dialysate to the other one of these flow routes.