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220 条记录 (耗时 0.032 秒)

    Drain Electrical Devices, Methods, and Systems
    2.
    发明申请
    Drain Electrical Devices, Methods, and Systems 有权

    公开(公告)号：US20230003209A1

    公开(公告)日：2023-01-05

    申请号：US17836164

    申请日：2022-06-09

    申请人： NxStage Medical, Inc.

    发明人： Jerome JAMES ,  Douglas DIONE

    IPC分类号： F04B43/12 ,  F04B17/03 ,  F04B53/16 ,  F04B49/02

    摘要： A peristaltic pump that reduces electrical current flowing through a pumping tube segment includes a central rotor mounted on a central rotation axis, a shoe with a curved surface facing toward the central rotor, multiple rollers mounted along the circumference of the central rotor and the pumping tube segment positioned between the curved surface and the central rotor. Each roller of the plurality of rollers is a member of a roller group, each roller group includes at least two rollers, rollers in a particular roller group are physically located closer to each other than to rollers in other roller groups, and at least two rollers pinch a portion of the pumping tube segment against the curved surface through a full rotation of the central rotor.

    Medicament Preparation Devices, Methods, and Systems
    3.
    发明申请
    Medicament Preparation Devices, Methods, and Systems 有权

    公开(公告)号：US20220305179A1

    公开(公告)日：2022-09-29

    申请号：US17701944

    申请日：2022-03-23

    申请人： NxStage Medical, Inc.

    发明人： Goetz FRIEDERICHS ,  Gregory YANTZ

    IPC分类号： A61M1/16 ,  A61M1/28 ,  B01F35/71 ,  B01F25/60

    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 two different concentrated medicaments from different concentrate containers and with purified water. The proportioning machine is configured to receive purified water and to mix it with the concentrated medicaments 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. Custom mini batches of medicament may be produced by varying the amount of the concentrates and water.

    Dialysis systems, devices, and methods
    5.
    发明授权
    Dialysis systems, devices, and methods 有权

    公开(公告)号：US11433169B2

    公开(公告)日：2022-09-06

    申请号：US17403600

    申请日：2021-08-16

    申请人： NxStage Medical, Inc.

    发明人： Jeffrey H. Burbank ,  James M. Brugger ,  Dennis M. Treu ,  Mark T. Wyeth

    IPC分类号： A61M1/28 ,  A61M1/16 ,  A61M25/00

    摘要： A treatment device system includes a treatment machine for performing a therapy on a patient, the treatment machine including at least one fluid conveyor and a controller, the controller having a first memory, to cause the at least one fluid conveyor to produce a therapeutic fluid by mixing purified water and at least one concentrate. The system also includes a water purifier with an internal central controller, in fluid communication with and providing the purified water to the treatment machine. A wired or wireless control line provides two way communication between the controller of the treatment machine and the internal central controller of the water purifier, the controller of the treatment machine transmitting data via the control line to the internal central controller of the water purifier for control of the water purifier, the data provided based on at least one of the operator inputs received via the user interface.

    Leakage Current Management Systems, Devices, and Methods
    7.
    发明申请
    Leakage Current Management Systems, Devices, and Methods 有权

    公开(公告)号：US20220196708A1

    公开(公告)日：2022-06-23

    申请号：US17529819

    申请日：2021-11-18

    申请人： NxStage Medical, Inc.

    发明人： Mark F. SMITH

    IPC分类号： G01R15/18 ,  G01R31/52 ,  G01R19/145 ,  A61M1/36 ,  A61N1/16

    摘要： A sensor/transducer for use in reducing leakage current from a patient fluidly connected to a medical device by tubing filled with a conductive fluid (e.g., blood or dialysate (a “fluid line”)) includes a magnetically conductive core with 1) a centrally located support for a coil of fluid line, and 2) coiled electrical conductors located at positions that are spaced from the centrally located support, on opposite sides of the centrally located support. The sensor/transducer can be used to measure leakage current carried by the conductive fluid in the fluid line, or it can be used to induce current in the fluid line in a manner that reduces the leakage current.

    Medical Device Loading Systems, Devices, and Methods
    8.
    发明申请
    Medical Device Loading Systems, Devices, and Methods 有权

    公开(公告)号：US20220193391A1

    公开(公告)日：2022-06-23

    申请号：US17602614

    申请日：2020-04-09

    申请人： NxStage Medical, Inc.

    发明人： Garrick C. ADOLF ,  Joseph A. HOELL, Jr. ,  Jacob A. CLARK ,  Derek Bruce ELDRIDGE

    IPC分类号： A61M60/847 ,  A61M1/36 ,  A61M60/113 ,  B01L9/00

    摘要： A cartridge insertion system includes a chassis supporting a fluid circuit, the chassis having a forward end with key pins projecting from the forward end and a rear end. The system also includes a medical treatment device with a slot opening closed by doors having a major dimension and having key openings spaced apart a same distance as the key pins on the chassis, such that when the chassis is pushed toward the slot opening, the key pins enter the key openings before the forward end meets the doors. The key pins push against latches that hold the door locked shut, so that the doors will not open if a cartridge without key pins is pressed against the door. When a cartridge with key pins is used, the doors unlock and allow the cartridge to be inserted.

    Fluid circuit priming methods, devices, and systems
    9.
    发明授权
    Fluid circuit priming methods, devices, and systems 有权

    公开(公告)号：US11344658B2

    公开(公告)日：2022-05-31

    申请号：US16392743

    申请日：2019-04-24

    申请人： NxStage Medical, Inc.

    发明人： James M. Brugger ,  William J. Schnell

    IPC分类号： A61M1/36

    摘要： According to embodiments, priming systems, methods, and devices are disclosed which allow medical treatment devices which pump fluid to be primed with minimal operator intervention and a high level of convenience. A blood circuit with a filter fitted with one or more air vents on a non-blood compartment is attached to a treatment system and priming fluid pumped slowly through the blood circuit in a loop. The source of fluid may be elevated, or the pumping may generate pressure, such that priming fluid is forced through the membrane of the filter and out the air vent(s). In embodiments, the vents are hydrophobic which prevent fluid from being ejected, so the priming system can run without intervention.

    Body temperature measurement devices, methods, and systems
    10.
    发明授权
    Body temperature measurement devices, methods, and systems 有权

    公开(公告)号：US11090423B2

    公开(公告)日：2021-08-17

    申请号：US16387695

    申请日：2019-04-18

    申请人： NxStage Medical, Inc.

    发明人： Scott W. Newell ,  Dennis M. Treu ,  Jerome James

    IPC分类号： A61M1/36 ,  G05D23/19

    摘要： A core temperature measurement may be made by varying the heat transfer dynamics of a blood circuit and fitting parameters of a blood circuit heat transfer configuration to measurements under the varied conditions. Then the input temperature of the patient core can be extracted from the model and a current temperature measurement remote from the patient core and optionally other measurements such as blood flow rate.