Systems and methods for platelet filtration using an additive

    公开(公告)号:US12090256B2

    公开(公告)日:2024-09-17

    申请号:US16488724

    申请日:2017-04-20

    申请人: Fenwal, Inc.

    IPC分类号: A61M1/02 A61J1/10 A61M1/36

    摘要: Systems and methods are provided for collecting a platelet product from a fluid including platelets and plasma. Platelet-rich plasma is separated from at least a portion of another constituent of the fluid and then may be further separated into concentrated platelets and platelet-poor plasma, with the concentrated platelets being resuspended. Separated platelets are conveyed through a size exclusion filter and into a platelet storage container. The size exclusion filter is configured to remove platelet clumps and/or particles larger than a platelet from the separated platelets. Subsequently, an additive is conveyed through the size exclusion filter and into the platelet storage container. Conveying additive through the size exclusion filter improves platelet recovery in the platelet product by displacement of separated platelets with the additive and may also break up any platelet clumps that are present in the size exclusion filter.

    SYSTEMS AND METHODS FOR PLASMA COLLECTION

    公开(公告)号:US20220400992A1

    公开(公告)日:2022-12-22

    申请号:US17861437

    申请日:2022-07-11

    申请人: FENWAL, INC.

    IPC分类号: A61B5/15

    摘要: A plasmapheresis system and a method for operating a plasmapheresis system are provided by which a volume of plasma product (i.e., anticoagulated plasma) so that that the targeted volume of pure plasma in the plasma product is determined based on donor-specific characteristics. In particular, the targeted amount of pure plasma to be collected is based on the weight, or the weight and the height, of the donor. The targeted volume of pure plasma to be collected, TVP, may be a multiple of the donor's weight. Alternatively, TVP may be a multiple of the donor's total blood volume, TBV, with the TBV of the donor being determined based on the donor's weight and height. A target volume for the plasma product to be collected, TVPP, is established, and separation of whole blood into a plasma component and a second component continues until the volume of plasma product in a collection container equals TVPP.

    Adjustment of target interface location between separated fluid components in a centrifuge

    公开(公告)号:US11484891B2

    公开(公告)日:2022-11-01

    申请号:US16878650

    申请日:2020-05-20

    申请人: Fenwal, Inc.

    摘要: A fluid separation device includes a centrifuge in which a fluid is separated into at least two components, with an interface therebetween. At least a portion of one of the separated fluid components is removed from the centrifuge and flows through a vessel. Light is reflected off of the separated fluid component in the vessel and received and analyzed to determine its main wavelength. If the main wavelength is higher than a maximum value, a target location of the interface is changed. If the main wavelength is less than the maximum value, then the location of the interface is compared to the target location. When the interface is sufficiently close to the target location, the optical density of the separated fluid component in the vessel is compared to a minimum value. If the optical density is less than the minimum value, the target location of the interface is changed.

    PROCESSING BLOOD DONATION DATA FOR PRESENTATION ON OPERATOR INTERFACE

    公开(公告)号:US20220262506A1

    公开(公告)日:2022-08-18

    申请号:US17732073

    申请日:2022-04-28

    申请人: Fenwal, Inc.

    摘要: A system and method processes blood donation data for presentation on an operator interface. A handheld computing device has a touch screen display and a processing circuit to provide an icon associated with an executable application on a first display screen, the icon configured to be positioned along with icons for other executable applications on the first display screen. The processing circuit is to retrieve an indication of a need for a particular blood component, wherein the particular blood component is selected from the group comprising whole blood, double red cells and plasma. The processing circuit is to provide the indication of the need for a particular blood component to the display. The processing circuit is to provide to the touch screen display a remaining time or a date the blood donor is next eligible to donate a blood component based on a donation eligibility guideline.

    Systems and methods for plasma collection

    公开(公告)号:US11412967B2

    公开(公告)日:2022-08-16

    申请号:US17306099

    申请日:2021-05-03

    申请人: Fenwal, Inc.

    IPC分类号: A61B5/15

    摘要: A plasmapheresis system and a method for operating a plasmapheresis system are provided by which a volume of plasma product (i.e., anticoagulated plasma) so that that the targeted volume of pure plasma in the plasma product is determined based on donor-specific characteristics. In particular, the targeted amount of pure plasma to be collected is based on the weight, or the weight and the height, of the donor. The targeted volume of pure plasma to be collected, TVP, may be a multiple of the donor's weight. Alternatively, TVP may be a multiple of the donor's total blood volume, TBV, with the TBV of the donor being determined based on the donor's weight and height. A target volume for the plasma product to be collected, TVPP, is established, and separation of whole blood into a plasma component and a second component continues until the volume of plasma product in a collection container equals TVPP.