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36 条记录 (耗时 0.024 秒)

    Filtration System for Preparation of Fluids for Medical Applications
    23.
    发明申请
    Filtration System for Preparation of Fluids for Medical Applications 审中-公开

    公开(公告)号：US20190275226A1

    公开(公告)日：2019-09-12

    申请号：US16423214

    申请日：2019-05-28

    申请人： NxStage Medical, Inc.

    发明人： Jeffrey H. BURBANK ,  Dennis M. TREU ,  Goetz FRIEDERICHS ,  Brian C. GREEN ,  Christopher S. MCDOWELL ,  James M. BRUGGER

    IPC分类号： A61M1/16 ,  A61M1/14 ,  A61M1/28 ,  A61M1/34 ,  C02F1/44

    摘要： A fluid preparation system has a sealed sterilized fluid circuit with a sealed sterilized container with a conductivity sensor in communication with an interior of said container. Further, at least one sealed connector is adapted for adding fluid to said container, and at least one sealed connector is adapted for removing fluid from said container. The conductivity sensor is contained in a test line in communication with said interior and is adapted to be connected to a source of suction thereby to draw a sample of contents of said container. Furthermore, the test line may have a check valve to prevent ingress of contaminants into said container, and the sealed connector is adapted for adding fluid to said container and may have an inline sterile filter. Furthermore, the system may have a controller that controls pumping actuators.

    Electrical Isolation Devices, Methods and Systems
    26.
    发明公开
    Electrical Isolation Devices, Methods and Systems 审中-公开

    公开(公告)号：US20230201431A1

    公开(公告)日：2023-06-29

    申请号：US17922207

    申请日：2021-06-23

    申请人： NxStage Medical, Inc.

    发明人： Goetz FRIEDERICHS

    IPC分类号： A61M1/14

    CPC分类号： A61M1/14 ,  A61M1/28

    摘要： A method of reducing leakage current from a patient to a ground potential through an applied part of a medical device includes defining a maximum permissible leakage current Amax from the patient to the ground potential when the patient is energized to an electric potential V and supplying the medical device with water having a resistivity value ρ through a fluid line having a length L and an inner diameter ID. The value of L and ID is selected to cause the fluid conduit filled with water of resistivity ρ to have a resistance of R high enough to maintain the leakage current from the patient to the ground potential below Amax.

    Medicament Preparation Devices, Methods, and Systems
    28.
    发明申请
    Medicament Preparation Devices, Methods, and Systems 有权

    公开(公告)号：US20220296796A1

    公开(公告)日：2022-09-22

    申请号：US17696546

    申请日：2022-03-16

    申请人： NxStage Medical, Inc.

    发明人： Goetz FRIEDERICHS ,  Gregory YANTZ

    IPC分类号： A61M1/28 ,  A61M60/279 ,  A61J1/10

    摘要： A system for preparing a medicament for use by a medicament user includes a proportioning machine with a controller and pumping and clamping actuators to engage a fluid circuit having pumping and clamping portions that engage with respective actuators of the proportioning machine. The fluid circuit includes a mixing container that is initially empty and later filled with a concentrated medicament from a concentrate container. The proportioning machine is configured to receive purified water and to mix it with the concentrated medicament to produce a medicament and to output the medicament to a medicament consumer in such a way that to the medicament consumer the medicament appears to be provided from a bag of medicament.

    Medicament Preparation Devices, Methods, and Systems
    30.
    发明申请
    Medicament Preparation Devices, Methods, and Systems 有权

    公开(公告)号：US20220241478A1

    公开(公告)日：2022-08-04

    申请号：US17612747

    申请日：2020-05-21

    申请人： NxStage Medical, Inc.

    发明人： Goetz FRIEDERICHS ,  Kevin HUGHES

    IPC分类号： A61M1/16 ,  B01F23/45 ,  B01F25/50 ,  B01F35/71 ,  B01F35/83 ,  B01F35/00

    摘要： A system for mixing a batch of medicament has a pump actuator, control valve actuators, a source of concentrate, and a purified water source, all connected by a fluid circuit. A controller controls various control valves to open fluid channels from the source of concentrate and from the purified water source to connect a junction of the fluid circuit to the concentrate container and the purified water source. The controller also controls the pump actuator and a water pump to flow water and concentrate through the junction into a mixing container, such that the mixture of the concentrate and the water requires additional dilution to form a ready-to-use medicament. The controller samples the mixture and calculate an additional quantity of water to add based on the sampling.