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公开(公告)号：US20240269358A1
公开(公告)日：2024-08-15
申请号：US18583836
申请日：2024-02-21
发明人： Dirk A. van der Merwe , Kevin L. Grant , Michael J. Wilt , Todd A. Ballantyne , Jonathan P. Rosse , Catharine N. Flynn , Brian K. Yee
IPC分类号： A61M1/16 , A61K33/00 , A61M1/14 , A61M1/26 , A61M1/30 , A61M1/34 , A61M1/36 , A61M5/172 , A61M60/113 , A61M60/268 , A61M60/37 , A61M60/427 , A61M60/43 , A61M60/837 , A61M60/847 , A61M60/851 , A61M60/892 , A61M60/894 , G16H20/40
CPC分类号： A61M1/1601 , A61K33/00 , A61M1/14 , A61M1/1524 , A61M1/154 , A61M1/155 , A61M1/156 , A61M1/15625 , A61M1/15632 , A61M1/1565 , A61M1/16 , A61M1/1605 , A61M1/1613 , A61M1/1619 , A61M1/1654 , A61M1/1656 , A61M1/1658 , A61M1/166 , A61M1/1664 , A61M1/1666 , A61M1/1668 , A61M1/1692 , A61M1/267 , A61M1/301 , A61M1/34 , A61M1/341 , A61M1/3413 , A61M1/3609 , A61M1/3621 , A61M1/362227 , A61M1/36224 , A61M1/36225 , A61M1/36226 , A61M1/362264 , A61M1/362265 , A61M1/362266 , A61M1/3627 , A61M1/3672 , A61M5/172 , A61M60/113 , A61M60/268 , A61M60/37 , A61M60/427 , A61M60/43 , A61M60/837 , A61M60/847 , A61M60/851 , G16H20/40 , A61M1/1561 , A61M1/362261 , A61M1/3638 , A61M60/892 , A61M60/894 , A61M2205/12 , A61M2205/15 , A61M2205/18 , A61M2205/3306 , A61M2205/3313 , A61M2205/3317 , A61M2205/3324 , A61M2205/3331 , A61M2205/3334 , A61M2205/3368 , A61M2205/3379 , A61M2205/3569 , A61M2205/3584 , A61M2205/50 , A61M2205/502 , A61M2205/52 , A61M2230/65 , Y02A50/30 , Y02A90/10
摘要： Dialysis systems are disclosed comprising new fluid flow circuits. Systems may include blood and dialysate flow paths, where the dialysate flow path includes balancing, mixing, and/or directing circuits. Dialysate preparation may be decoupled from patient dialysis. Circuits may be defined within one or more cassettes. The fluid circuit fluid flow paths may be isolated from electrical components. A gas supply in fluid communication with the dialysate flow path and/or the dialyzer able to urge dialysate through the dialyzer and urge blood back to the patient may be included for certain emergency situations. Fluid handling devices, such as pumps, valves, and mixers that can be actuated using a control fluid may be included. Control fluid may be delivered by an external pump or other device, which may be detachable and/or generally rigid, optionally with a diaphragm dividing the device into first and second compartments.
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公开(公告)号：US20240181141A1
公开(公告)日：2024-06-06
申请号：US18528418
申请日：2023-12-04
发明人： Oskar Erik Frode Styrbjörn Fallman , Michael Pettersson , Jimmie Marcus Axel Hansson , Per-Olof Borgqvist
CPC分类号： A61M1/1601 , A61M1/362265
摘要： Systems and methods are disclosed for reducing noise in solenoid valve activation and deactivation in peritoneal dialysis (“PD”) systems. In at least one embodiment, the PD system operates with solenoid valves under the control of a control unit. The control unit takes measures to control the movement of the solenoid valve to minimize the amount of sound that occurs at impact during activation and deactivation of the valve. The measures include the slowing of the movement of the valve plunger within the valve coil. In one aspect, the valve plunger may be slowed down by applying voltage to the valve coil through pulse width modulation (“PWM”).
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公开(公告)号：US11793915B2
公开(公告)日：2023-10-24
申请号：US17493758
申请日：2021-10-04
CPC分类号： A61M1/1601 , A61M1/154 , A61M1/155 , A61M1/1561 , A61M1/1565 , A61M1/15625 , A61M1/16 , A61M1/1621 , A61M1/1654 , A61M1/1694 , A61M1/267 , A61M1/3401 , A61M1/341 , A61M1/3413 , A61M1/3424 , A61M1/365 , A61M1/3609 , A61M1/3621 , A61M1/3638 , A61M1/3643 , A61M1/3644 , A61M1/3646 , A61M1/3649 , A61M1/3652 , A61M1/3672 , A61M1/36224 , A61M1/362261 , A61M1/362263 , A61M1/362265 , A61M1/362266 , A61M2205/07 , A61M2205/12 , A61M2205/123 , A61M2205/128 , A61M2205/15 , A61M2205/16 , A61M2205/3317 , A61M2205/3324 , A61M2205/3331 , A61M2205/3334 , A61M2205/3368 , A61M2205/36 , A61M2205/505 , A61M2205/82 , A61M2205/8218 , A61M2205/8225 , Y10T137/87893
摘要： The present invention generally relates to hemodialysis and similar dialysis systems, including a variety of systems and methods that would make hemodialysis more efficient, easier, and/or more affordable. One aspect of the invention is generally directed to new fluid circuits for fluid flow. In one set of embodiments, a hemodialysis system may include a blood flow path and a dialysate flow path, where the dialysate flow path includes one or more of a balancing circuit, a mixing circuit, and/or a directing circuit. Preparation of dialysate by the preparation circuit, in some instances, may be decoupled from patient dialysis. In some cases, the circuits are defined, at least partially, within one or more cassettes, optionally interconnected with conduits, pumps, or the like. In one embodiment, the fluid circuit and/or the various fluid flow paths may be at least partially isolated, spatially and/or thermally, from electrical components of the hemodialysis system. In some cases, a gas supply may be provided in fluid communication with the dialysate flow path and/or the dialyzer that, when activated, is able to urge dialysate to pass through the dialyzer and urge blood in the blood flow path back to the patient. Such a system may be useful, for example, in certain emergency situations (e.g., a power failure) where it is desirable to return as much blood to the patient as possible. The hemodialysis system may also include, in another aspect of the invention, one or more fluid handling devices, such as pumps, valves, mixers, or the like, which can be actuated using a control fluid, such as air. In some cases, the control fluid may be delivered to the fluid handling devices using an external pump or other device, which may be detachable in certain instances. In one embodiment, one or more of the fluid handling devices may be generally rigid (e.g., having a spheroid shape), optionally with a diaphragm contained within the device, dividing it into first and second compartments.
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公开(公告)号：US20230211059A1
公开(公告)日：2023-07-06
申请号：US17920331
申请日：2021-04-21
CPC分类号： A61M1/1647 , A61M1/36225 , A61M1/362265 , A61M1/3643 , A61M2205/3331
摘要： The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.
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公开(公告)号：US11666690B2
公开(公告)日：2023-06-06
申请号：US16901897
申请日：2020-06-15
CPC分类号： A61M1/1601 , A61M1/15 , A61M1/1565 , A61M1/1566 , A61M1/16 , A61M1/1621 , A61M1/1635 , A61M1/1694 , A61M1/267 , A61M1/341 , A61M1/3462 , A61M1/3622 , A61M1/3626 , A61M1/3644 , A61M1/3652 , A61M1/3672 , A61M1/36225 , A61M1/362223 , A61M1/362227 , A61M1/362261 , A61M1/362265 , A61M1/362266 , A61M5/172 , G16H20/40 , A61M1/1613 , A61M1/1619 , A61M1/1696 , A61M1/3427 , A61M1/3441 , A61M1/3465 , A61M1/365 , A61M1/3609 , A61M1/3646 , A61M2205/12 , A61M2205/123 , A61M2205/128 , A61M2205/15 , A61M2205/18 , A61M2205/3317 , A61M2205/3324 , A61M2205/3331 , A61M2205/3334 , A61M2205/3379 , A61M2205/502 , Y10T137/87893
摘要： Dialysis systems comprising actuators that cooperate to perform dialysis functions and sensors that cooperate to monitor dialysis functions are disclosed. According to one aspect, such a hemodialysis system comprises a user interface model layer, a therapy layer, below the user interface model layer, and a machine layer below the therapy layer. The user interface model layer is configured to manage the state of a graphical user interface and receive inputs from a graphical user interface. The therapy layer is configured to run state machines that generate therapy commands based at least in part on the inputs from the graphical user interface. The machine layer is configured to provide commands for the actuators based on the therapy commands.
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公开(公告)号：US11992588B2
公开(公告)日：2024-05-28
申请号：US17046069
申请日：2019-04-08
CPC分类号： A61M1/1601 , A61M1/16 , A61M1/267 , A61M1/30 , A61M1/301 , A61M1/305 , A61M1/34 , A61M1/3413 , A61M1/3427 , A61M1/3434 , A61M1/3622 , A61M1/36224 , A61M1/36225 , A61M39/105 , A61M39/28 , A61M1/362262 , A61M1/362265 , A61M2205/12 , A61M2205/3331
摘要： The present disclosure relates to a blood hose set, or to an extracorporeal blood circuit, for a single-needle treatment. In some embodiments, the set includes: a patient hose line and a Y-shaped connector or three-way connecter, which is connected to the patient hose line. In some embodiments, the blood hose set does not include any single-needle chamber in a blood path or on a blood side, nor is it connected to any single-needle chamber provided in a blood path or on a blood side. The present disclosure further relates to a control device or closed-loop control device, a blood treatment apparatus, a method for the single-needle treatment, a digital storage medium, a computer program product and a computer program.
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公开(公告)号：US11975133B2
公开(公告)日：2024-05-07
申请号：US18069451
申请日：2022-12-21
申请人： NextKidney SA
发明人： Didier Vecten , Ricardo Allendes , Paul Vescovo
CPC分类号： A61M1/3644 , A61M1/1524 , A61M1/154 , A61M1/155 , A61M1/1561 , A61M1/1565 , A61M1/1603 , A61M1/1621 , A61M1/267 , A61M1/362227 , A61M1/36224 , A61M1/36225 , A61M1/362261 , A61M1/362265 , A61M1/3627 , A61M39/10 , A61M39/22 , A61M1/1566 , A61M1/362266 , A61M1/3646 , A61M2205/3337 , A61M2205/50
摘要： A dialysis system may include a blood circuit, a cassette, a subsystem having a processor, a sensor, and a blood pumping mechanism, a housing in which the subsystem is arranged, a movable support arranged in the housing and configured to hold the sensor and/or the blood pumping mechanism of the subsystem, a cassette holder configured to removably receive the cassette, and a loading system. The loading system may be configured to move the movable support, e.g. by an axial movement, to a first position and to a second position relatively to the housing while the cassette holder is fixedly arranged in the housing. The loading system may have an electric motor controlled by the processor, a drive assembly coupled to the electric motor, and a guiding assembly configured to cooperate with the drive assembly.
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公开(公告)号：US20240115777A1
公开(公告)日：2024-04-11
申请号：US18391085
申请日：2023-12-20
申请人： Fenwal, Inc.
发明人： Benjamin E. Kusters , Kyungyoon Min
CPC分类号： A61M1/029 , A61M1/362227 , A61M1/36224 , A61M1/36225 , A61M1/362261 , A61M1/362265 , A61M1/3693 , A61M1/3696 , B04B5/0442 , B04B11/02
摘要： Systems and methods are provided for separating blood into two or more components for collection of red blood cells, plasma, or both red blood cells and plasma. A blood separation system includes a blood separation device and a fluid flow circuit configured to be mounted to the blood separation device. The blood separation device includes a centrifugal separator and a spinning membrane separator drive unit, with the blood being separated into its constituents by the centrifugal separator. Separated plasma may be collected following separation by the centrifugal separator or may first be conveyed from the centrifugal separator into the spinning membrane separator drive unit to separate cellular blood components from the plasma prior to collection of the filtered plasma. The cellular blood components filtered from the plasma may be retained in the circuit as a waste product or may be flushed out of the circuit to a recipient.
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公开(公告)号：US11931492B2
公开(公告)日：2024-03-19
申请号：US17363554
申请日：2021-06-30
发明人： Michael E. Hogard , Donald D. Busby , Robert W. Childers , Yuanpang Samuel Ding , Katherine M. Holian , Mark E. Jablonski , Thomas D. Kelly , Shincy J. Maliekkal , Rodolfo G. Roger , Donald A. Smith , Atif M. Yardimci , Ying-Cheng Lo
CPC分类号： A61M1/14 , A61M1/1522 , A61M1/153 , A61M1/154 , A61M1/155 , A61M1/1561 , A61M1/15625 , A61M1/15632 , A61M1/1565 , A61M1/16 , A61M1/1605 , A61M1/1613 , A61M1/1635 , A61M1/166 , A61M1/1696 , A61M1/28 , A61M1/284 , A61M1/288 , A61M1/3401 , A61M1/341 , A61M1/3413 , A61M1/3417 , A61M1/342 , A61M1/3427 , A61M1/3434 , A61M1/3437 , A61M1/3441 , A61M1/3444 , A61M1/3458 , A61M1/3465 , A61M1/3468 , A61M1/362223 , A61M1/36224 , A61M1/362261 , A61M1/362262 , A61M1/362264 , A61M1/362265 , A61M2205/12 , A61M2205/3334
摘要： A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
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公开(公告)号：US11896746B2
公开(公告)日：2024-02-13
申请号：US16495893
申请日：2018-03-20
发明人： Masatsugu Igarashi
CPC分类号： A61M1/0222 , A61M1/3496 , A61M1/3672 , A61M1/3696 , A61M1/36222 , A61M1/362261 , A61M1/362264 , A61M1/362265 , A61M1/38 , A61M1/36224 , A61M2205/125 , A61M2205/7545 , A61M2207/00
摘要： A blood component collection cassette that can trap a foreign object such as a blood-coagulated clot from blood components to be returned to a blood donor and a manufacturing method of the blood component collection cassette are provided.
A sheet-shaped filter member (60) is arranged on a flow path (42) in a cassette main body (40) of a blood component collection cassette (28). A first tube (66) and a second tube (68) are arranged in the cassette main body (40). An inner space (51) of a filter housing unit (54a) is separated by the filter member (60) into a first space (51a) on the side of the first tube (66) and a second space (51b) on the side of the second tube (68).
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