Biological fluid separation device

    公开(公告)号:US11305241B2

    公开(公告)日:2022-04-19

    申请号:US16658350

    申请日:2019-10-21

    Abstract: A biological fluid separation device adapted to receive a biological fluid sample having a first portion and a second portion is disclosed. The device includes a housing having a first chamber having a first chamber inlet for receiving the biological fluid sample therein and a first chamber outlet. The housing has a second chamber having a second chamber inlet and a second chamber outlet, and a separation member separating at least a portion of the first chamber outlet and the second chamber. The separation member is adapted to restrain the first portion of the biological fluid sample within the first chamber and to allow at least a portion of the second portion of the biological fluid sample to pass into the second chamber. An actuator, such as a vacuum source, draws the biological fluid sample into the first chamber and the second portion into the second chamber.

    CATHETER SYSTEM FOR ARTERIAL BLOOD DRAW AND RELATED METHODS

    公开(公告)号:US20240415432A1

    公开(公告)日:2024-12-19

    申请号:US18677619

    申请日:2024-05-29

    Abstract: An arterial catheter system may include a catheter assembly, which may include a catheter hub and an arterial catheter. The arterial catheter system may include a needle assembly, which may include a needle hub and an introducer needle. The arterial catheter system may include an extension tube coupled to the catheter assembly and a fluid pathway extending through the arterial catheter, catheter hub, and the extension tube. A first fluidic resistance within a portion of the fluid pathway within the extension tube may be greater than a second fluidic resistance within the fluid pathway distal to or proximal to the portion of the fluid pathway. The extension tube may have a length L and an inner diameter D. A geometric factor Gf of the portion of the fluid pathway may equal L/D4 and may be selected to reduce hemolysis during blood draw from an artery.

    Biological fluid separation device

    公开(公告)号:US11344851B2

    公开(公告)日:2022-05-31

    申请号:US16658350

    申请日:2019-10-21

    Abstract: A biological fluid separation device adapted to receive a biological fluid sample having a first portion and a second portion is disclosed. The device includes a housing having a first chamber having a first chamber inlet for receiving the biological fluid sample therein and a first chamber outlet. The housing has a second chamber having a second chamber inlet and a second chamber outlet, and a separation member separating at least a portion of the first chamber outlet and the second chamber. The separation member is adapted to restrain the first portion of the biological fluid sample within the first chamber and to allow at least a portion of the second portion of the biological fluid sample to pass into the second chamber. An actuator, such as a vacuum source, draws the biological fluid sample into the first chamber and the second portion into the second chamber.

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