31.
    发明专利
    未知

    公开(公告)号:DE3650075D1

    公开(公告)日:1994-10-27

    申请号:DE3650075

    申请日:1986-12-03

    Applicant: BAXTER INT

    Abstract: The apparatus is particularly suitable for controlling rotational speed of an inner housing (26) relative to an outer housing (12) in a centrifuge in which both housings rotate about a common axis. A reflector (58) is provided on the inner housing offset from the axis and an optic fibre (52) extends through the outer housing along the axis and terminates in the outer housing at a position offset from the axis to transmit radiation from a source (42) to impinge on the reflector. Reflected radiation is transmitted back down the optic fibre and is sensed by a sensor (66) as an indication of rotational velocity of the inner housing. A second sensor (74) senses the rotational speed of the outer housing (12) and a control system (70) compares the outposts of the sensors and controls the relative rotational velocities of the housings.

    Systems and methods eradicating contaminants in fluids

    公开(公告)号:AU649095B2

    公开(公告)日:1994-05-12

    申请号:AU9172391

    申请日:1991-12-20

    Abstract: A system and method for treating a fluid carrying a contaminant to which a photoactive material has been bound include a treatment device that defines a flow passage with a gap. The system and method operate to establish a flow of fluid from the inlet end of the gap to the outlet end of the gap. The system and method also channel the flow of fluid in the gap in succession through one or more flow paths. The system and method establish at least two discrete sources of radiation in the flow path at spaced apart locations along the direction of fluid flow. At least one of the radiation sources comprises a photodiode. The system and method further include a control for operating each discrete source of radiation at a selected wavelength within the prescribed range to activate the photoactive material bound to the contaminant. Upon activation, the material eradicates the contaminant. The system and method provide extracorporeal treatment of fluids like blood to quickly and effectively eradicate infection agents at relatively high flow rates.

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