BLOOD PURIFICATION APPARATUS
    2.
    发明公开

    公开(公告)号:US20240245842A1

    公开(公告)日:2024-07-25

    申请号:US18562401

    申请日:2022-03-22

    申请人: NIKKISO CO., LTD.

    摘要: In draining liquid in an AV-coupling-type blood circuit, it is determined that the blood circuit is in an AV-coupled state. A blood purification apparatus can switch between an open state in which fluid can flow through a blood removal side circuit and a blood return side circuit and a closed state in which the fluid cannot flow therethrough. The apparatus generates a difference in pressure between the blood removal side circuit and the blood return side circuit by rotating a blood pump in the case of the closed state. The apparatus then determines whether the blood circuit is the closed circuit by switching to the open state and monitoring the difference in pressure from detecting pressure inside the blood circuit. The apparatus drains liquid remaining in the blood circuit to a predetermined drainage destination with the blood circuit forming the closed circuit.

    Tube connector, extracorporeal circulation circuit, and blood purification device

    公开(公告)号:US11865292B2

    公开(公告)日:2024-01-09

    申请号:US17284079

    申请日:2019-08-01

    申请人: NIKKISO CO., LTD.

    发明人: Sumiaki Matsuo

    摘要: A tube connector is configured to connect between a main tube and a peristaltically-actuated tube. The tube connector includes a first connection part configured to be connected to the main tube; a second connection part configured to be connected to the peristaltically-actuated tube; a communication part being provided between the first connection part and the second connection part and having a communication flow path for communicating between a first flow path through which fluid flows in the first connection part and a second flow path through which the fluid flows in the second connection part; and a main body section. The first flow path and the second flow path are formed to have a constant diameter and are formed so as to extend along the axial direction of the main body section. A diameter of the first flow path is smaller than a diameter of the second flow path. The communication flow path is formed so as to gradually enlarge in diameter from a first flow path side to a second flow path side. A central axis of the first flow path and a central axis of the second flow path are shifted toward the radial direction of the main body section.

    EXTRACORPOREAL PLASMA SEPARATION, ADSORPTION, AND DELIVERY SYSTEMS AND METHODS

    公开(公告)号:US20240082475A1

    公开(公告)日:2024-03-14

    申请号:US18254272

    申请日:2021-11-22

    申请人: CytoStorm, Inc.

    发明人: Lon Howard Stone

    摘要: A blood processing system includes a collection line for carrying blood, a blood separation device for separating the blood into first and second fractions, a plasma delivery line for delivering the first blood fraction to an adsorption device, and a peristaltic pump. The adsorption device adsorbs plasma of the first blood fraction. Portions of the collection and plasma delivery lines are positioned in a channel of the peristaltic pump, and the peristaltic pump causes the blood to flow through the collection line at a first flow rate and causes the first blood fraction to flow through the plasma delivery line at a second flow rate that is less than the first flow rate. In some implementations, the collection and plasma delivery lines are tubes having different internal diameters facilitating such differential flow rates. In some implementations, the peristaltic pump is the only pump in the blood processing system.