Centrifuges And Centrifuge Inserts For Fluid Processing Systems

    公开(公告)号:US20250144642A1

    公开(公告)日:2025-05-08

    申请号:US19003321

    申请日:2024-12-27

    Applicant: Fenwal, Inc.

    Abstract: Fluid separation chambers are provided for rotation about an axis in a fluid processing system. The fluid separation chamber may be provided with first and second stages, with the first and second stages being positioned at different axial locations. In another embodiment, at least one of the stages may be provided with a non-uniform outer diameter about the rotational axis, which may define a generally spiral-shaped profile or a different profile for fractionating a fluid or fluid component. One or more of the stages may also have a varying outer diameter along the axis. The profile of the chamber may be provided by the chamber itself (in the case of rigid chambers) or by an associated fixture or centrifuge apparatus (in the case of flexible chambers).

    Fluid Separation Chambers For Fluid Processing Systems

    公开(公告)号:US20240424502A1

    公开(公告)日:2024-12-26

    申请号:US18814491

    申请日:2024-08-24

    Applicant: Fenwal, Inc.

    Abstract: Fluid separation chambers are provided for rotation about an axis in a fluid processing system. The fluid separation chamber may be provided with first and second stages, with the first and second stages being positioned at different axial locations. In another embodiment, at least one of the stages may be provided with a non-uniform outer diameter about the rotational axis, which may define a generally spiral-shaped profile or a different profile for fractionating a fluid or fluid component. One or more of the stages may also have a varying outer diameter along the axis. The profile of the chamber may be provided by the chamber itself (in the case of rigid chambers) or by an associated fixture or centrifuge apparatus (in the case of flexible chambers).

    Dynamic adjustment of algorithms for separation and collection of blood components

    公开(公告)号:US11957828B2

    公开(公告)日:2024-04-16

    申请号:US17019397

    申请日:2020-09-14

    Applicant: Fenwal, Inc.

    Inventor: Brian C. Case

    CPC classification number: A61M1/3696 B01D21/262 B01D21/30 B01D63/16

    Abstract: Blood is conveyed from a source into a separator, which separates at least one target blood component from the blood. The target blood component is then conveyed out of the separator, with the procedure continuing until an initial target amount of blood to be processed has been conveyed from the source into the separator and the target blood component separated from the initial target amount of blood to be processed has been conveyed out of the separator as an actual yield of the target blood component. An adjusted target amount of blood to be processed is then determined based at least in part on the difference between a target yield of the target blood component and the actual yield. The initial target amount of blood to be processed is then replaced with the adjusted target amount of blood to be processed when next executing the procedure.

    Dynamic Adjustment Of Algorithms For Separation And Collection Of Blood Components

    公开(公告)号:US20210077708A1

    公开(公告)日:2021-03-18

    申请号:US17019397

    申请日:2020-09-14

    Applicant: Fenwal, Inc.

    Inventor: Brian C. Case

    Abstract: Blood is conveyed from a source into a separator, which separates at least one target blood component from the blood. The target blood component is then conveyed out of the separator, with the procedure continuing until an initial target amount of blood to be processed has been conveyed from the source into the separator and the target blood component separated from the initial target amount of blood to be processed has been conveyed out of the separator as an actual yield of the target blood component. An adjusted target amount of blood to be processed is then determined based at least in part on the difference between a target yield of the target blood component and the actual yield. The initial target amount of blood to be processed is then replaced with the adjusted target amount of blood to be processed when next executing the procedure.

    Stationary optical monitoring system for blood processing system

    公开(公告)号:US10561784B2

    公开(公告)日:2020-02-18

    申请号:US15609382

    申请日:2017-05-31

    Applicant: Fenwal, Inc.

    Abstract: A blood processing system includes a centrifuge and an optical monitoring system mounted at a stationary radial position with respect to the centrifuge. A flow circuit may be mounted within the centrifuge, with an umbilicus of the flow circuit extending outside of the centrifuge. A midsection of the umbilicus is orbited around a rotational axis of the centrifuge at a uniform first speed, which causes the centrifuge to rotate at a non-uniform second speed that is approximately double the first speed. The monitoring system is configured to view the flow circuit through a radial window of the centrifuge to determine a characteristic of the flow circuit. The yoke and/or umbilicus may occasionally move into position between the monitoring system and the window, so a controller of the monitoring system is configured to determine when unobstructed light reflected through the window by the centrifuge is received by the monitoring system.

    Performing an apheresis procedure on a human subject with identity confirmation

    公开(公告)号:US10431334B2

    公开(公告)日:2019-10-01

    申请号:US16162867

    申请日:2018-10-17

    Applicant: FENWAL, INC.

    Abstract: A system for performing an apheresis procedure on a human subject includes an apheresis treatment device and a remote data storage device. The remote data storage device communicates with the apheresis treatment device over a network. The remote data storage device is programmed with a plurality of subject data entries, each subject data entry comprising subject-specific information. The remote data storage device downloads subject-specific information comprising a name and a birth date from the subject data entry and programs the apheresis treatment device with a plurality of parameters for the apheresis medical procedure. The apheresis treatment device includes a touch screen and a controller, the controller confirming an identity of the human subject based on an input. Based on the result of the confirmation access is provided to an apheresis procedure operated according to the programmed parameters on the apheresis treatment device.

    Using physiological data in a medical device

    公开(公告)号:US10286148B2

    公开(公告)日:2019-05-14

    申请号:US13743922

    申请日:2013-01-17

    Applicant: Fenwal, Inc.

    Abstract: Systems and methods for using physiological data in a medical device are disclosed. The physiological data may be measured by a vital sign reader and received by a processing circuit associated with the medical device. The processing circuit may automatically adjust the operation of the medical device during a medical procedure based on the physiological data. In some implementations, the processing circuit may mirror a memory partition to a redundant storage device, allowing for uninterrupted execution of the medical procedure in the event of a memory failure condition.

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