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    CENTRIFUGE ASSEMBLY
    1.
    发明专利
    CENTRIFUGE ASSEMBLY 未知

    公开(公告)号：ZA783523B

    公开(公告)日：1980-02-27

    申请号：ZA783523

    申请日：1978-06-20

    Applicant: IBM

    Inventor： KELLOGG R ,  MULZET A

    IPC: G01N33/48 ,  B04B5/00 ,  B04B5/04

    Abstract: An improved centrifuge assembly comprising a channeled rotor assembly and a fluid container disposed in the channel, whereby the centrifugal separation effects in the fluid container are determined by the geometry of the channel in the rotor. This arrangement is particularly useful for two-stage blood platelet separation. The fluid container is preferably formed from semirigid plastic material and is considered a disposable item to be discarded after a single use. The rotary assembly preferably includes a removable filler piece or center piece formed from a single piece of material, such as rigid plastic, as by machining or molding, and having therein an open-topped channel having dimensions appropriate to receive the semirigid container, which is suitably curved and placed in the channel. Fluid connections are provided from each end of the container and an intermediate point to an axially located multichannel rotating seal. The connections lie in a plurality of radial slots in the filler piece. The channel is divided into two distinct portions, the first portion of the channel being circular with a constant radius, and the second portion being spiral and having a plurality of radiuses, each measured from a different center, the spiral increasing radially outward from its juncture with the first stage. The intermediate fluid connection is established near the junction of the first stage and the second stage. The spiral portion of the channel and container may have an outward slope from bottom to top.

    CENTRIFUGE ASSEMBLY
    3.
    发明专利
    CENTRIFUGE ASSEMBLY 未知

    公开(公告)号：ZA782114B

    公开(公告)日：1979-11-28

    申请号：ZA782114

    申请日：1978-04-12

    Applicant: IBM

    Inventor： KRUGER V ,  MULZET A ,  KELLOGG R

    IPC: B04B5/04 ,  G01N33/48 ,  B04B1/00 ,  B04B5/00

    Abstract: An improved centrifuge assembly comprising a channeled rotor assembly and a ring-like fluid container disposed in the channel, whereby the centrifugal separation effects in the fluid container are determined by the geometry of the channel in the rotor. The fluid container is preferably formed from semirigid plastic material in the form of a tube having a rectangular cross section and is considered a disposable item to be discarded after a single use. The rotor assembly preferably includes a removable filler piece or center piece formed from a single piece of material, such as rigid plastic, as by molding, dimensioned to form, with the wall of the centrifuge bowl, a circular channel having dimensions appropriate to receive the semirigid container, which is suitably bent and placed in the channel. Fluid connections are provided from each end of the container to an axially located multichannel rotating seal. The connections lie in a plurality of radial slots in the filler piece. Alternatively the entire assembly may be molded as a single entity, with a suitable channel and fluid line grooves being cast therein.

    CENTRIFUGE
    4.
    发明专利
    CENTRIFUGE 未知

    公开(公告)号：ZA782115B

    公开(公告)日：1979-11-28

    申请号：ZA782115

    申请日：1978-04-12

    Applicant: IBM

    Inventor： MULZET A ,  KELLOGG R

    IPC: G01N33/48 ,  A61M1/36 ,  B04B5/00 ,  B04B5/04 ,  B04B1/00

    Abstract: An improved collecting chamber for use with centrifuges for separating particles of different density suspended in a fluid, especially for separating the various fractions in human blood.

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