Blood monitoring system for detecting occult hemorrhages

    公开(公告)号:US12090257B2

    公开(公告)日:2024-09-17

    申请号:US17132710

    申请日:2020-12-23

    IPC分类号: A61M1/16 A61M1/36

    摘要: A method for detecting occult hemorrhages is provided. The method includes obtaining a first hematocrit concentration prior to infusing a saline solution into a bloodstream of a patient. The method further includes infusing the saline solution into the bloodstream of the patient and obtaining a second hematocrit concentration after infusing the saline solution into the bloodstream. The method also includes determining a first absolute blood volume based on the first hematocrit concentration and the second hematocrit concentration. In addition, the method includes generating a notification indicating a potential occult hemorrhage based on the first absolute blood volume and a pre-defined absolute blood volume threshold, and providing the notification indicating the potential occult hemorrhage.

    SYSTEM AND METHOD FOR COLLECTING PLASMA
    3.
    发明公开

    公开(公告)号:US20240293604A1

    公开(公告)日:2024-09-05

    申请号:US18606761

    申请日:2024-03-15

    发明人: Michael Ragusa

    IPC分类号: A61M1/38 A61M1/34 A61M1/36

    摘要: A method for collecting plasma includes determining the weight, height, and hematocrit of a donor, and calculating a donor plasma volume and a target plasma collection volume. The target plasma collection volume is based on the donor plasma volume and a target percentage of plasma. The method then withdraws blood from the donor through a line connected to a blood component separation device, and introduces anticoagulant into the withdrawn blood. The blood component separation device separates the blood into a plasma component and a second blood component, and the plasma component is collected from the blood component separation device and into a plasma collection container. The method may then calculate the volume of pure plasma collected within the plasma collection container, and continue processing/collecting until the calculated volume of pure plasma equals the target plasma collection volume.

    SYSTEM AND METHOD FOR IMPROVED FLUID FLOW CONTROL WITHIN A FLUID CIRCUIT CASSETTE

    公开(公告)号:US20170239403A1

    公开(公告)日:2017-08-24

    申请号:US15436369

    申请日:2017-02-17

    申请人: Fenwal, Inc.

    IPC分类号: A61M1/02 A61M1/36

    摘要: A fluid processing system for controlling fluid flow comprises a cassette having a defined passageway on a first side. The first side includes flexible sheeting disposed over the passageway. The system comprises a durable processing device configured to engage the first side of the cassette, the durable processing device comprising a valve actuator configured to engage the flexible sheeting at a valve location along the passageway. The system comprises a first pump configured to draw fluid away from the valve location along the passageway. The first pump is disposed downstream of the valve location. The system comprises a second pump configured to pump fluid towards the valve location along the defined passageway. The second pump is disposed upstream of the valve location. The first and second pumps are configured to operate in concert and configured to provide pressure to prevent collapsing of the flexible sheeting against the passageway during operation.