公开(公告)号：US20220143288A1

公开(公告)日：2022-05-12

申请号：US17520840

申请日：2021-11-08

Applicant: SHIBUYA CORPORATION

Inventor： Kosho MATSUZAKI ,  Takashi MISHIMA

IPC: A61M1/36

Abstract: A dialysis apparatus has a connection channel that communicatively connects a dialysate circuit and a blood circuit, and circulates dialysate from the dialysate circuit to the blood circuit via the connection channel during a priming operation. A blood pump has a tube attachment device that switches from an unattached state in which a tube is positioned outside a housing and permits liquid to circulate thereinside, to an attached state in which the tube is in the housing and a rotor compresses the tube. At the time of priming, the liquid feeding pump feeds dialysate from the dialysate circuit to the blood circuit via the connection channel. With the blood pump being in the unattached state, the dialysate is circulated past the blood pump, and then, with the blood pump in the attached state, the dialysate is circulated in a direction opposite to the blood pump.

公开(公告)号：US20240075192A1

公开(公告)日：2024-03-07

申请号：US18455006

申请日：2023-08-24

Applicant: SHIBUYA CORPORATION

Inventor： Yosuke MATSUBARA ,  Takashi MISHIMA ,  Kosho MATSUZAKI ,  Yuki NAKAMURA

IPC: A61M1/16

CPC classification number: A61M1/1654 ,  A61M2205/3331

Abstract: A dialysis apparatus has a replenisher passage selectively connectable to an arterial side passage (pre-replenishment) or a venous side passage (post-replenishment) in a blood circuit. A supply side pressure sensor measures a pressure of a dialysate supply passage and a collection side pressure sensor measures a pressure of a dialysate collection passage. The connection passages each have one end communicating with the arterial side passage or the venous side passage of the blood circuit and another end connected to the dialysate collection passage. It is determined whether the replenisher passage is connected to the arterial side passage or the venous side passage, based on a differential pressure of pressures measured by the supply side pressure sensor and the collection side pressure sensor, in a state where a dialysate pump (liquid delivery device) causes dialysate to flow into the blood circuit from the replenisher passage.