中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

67 records (took 0.02 seconds)

    61.
    发明专利
    未知

    公开(公告)号：DE69736974D1

    公开(公告)日：2007-01-04

    申请号：DE69736974

    申请日：1997-09-22

    Applicant: BAXTER INT

    Inventor： PRINCE R ,  PEKKARINEN O ,  BELLAMY DAVID ,  STERNBERG SHMUEL

    IPC: B01D65/02 ,  A61M1/26 ,  A61M1/34 ,  B01D39/16 ,  B01D61/14 ,  B01D61/22 ,  B01D63/16 ,  B01D65/08 ,  B01D69/00 ,  B01D69/02

    Abstract: A method and apparatus for filtering suspensions of medical and biological fluids, one aspect of which is separating a suspension comprising at least two types of particles which are differently sized or shaped and in which the first type of particle may be deformable at a relatively lower force and/or faster rate than the second type of particle. A filter member is provided having substantially precisely dimensioned pore sizes, with the pores being dimensioned to allow passage of the first type of suspended particle without distortion or only minimal distortion and passage of the second type of particle only with substantial distortion. Because the filter membrane has precisely dimensioned pores, with spacing between the pores being maintained despite the smaller interval between the pores, the porosity of the membrane may be much greater than nominal pore size membranes, allowing faster filtration rates and/or smaller membranes for a given filtration rate, while reducing the exposure time of the cells within the shear environment, and consequently reducing particle damage. Various methods for preventing clogging of the membrane are also disclosed.

    Device and method for pathogen inactivation of therapeutic fluids with sterilizing radiation
    63.
    发明专利
    Device and method for pathogen inactivation of therapeutic fluids with sterilizing radiation 未知

    公开(公告)号：AU4142801A

    公开(公告)日：2001-08-07

    申请号：AU4142801

    申请日：2001-01-26

    Applicant: BAXTER INT

    Inventor： WOO LECON ,  BOGGS DANIEL R ,  STERNBERG SHMUEL ,  SANDFORD CRAIG ,  KHARE ATUL ,  BREILLATT JULIAN

    IPC: A61L2/00 ,  A61L2/10 ,  A61M1/02 ,  A61M1/36 ,  A61L2/02

    Abstract: A device and method for inactivating pathogens in therapeutic fluids with sterilizing radiation in a continuous thin fluid flow arrangement that exhibits radiation dose uniformity for fluids having high optical densities. Radiation dose uniformity is achieved in part through a "carrying" mechanism that moves or carries the fluid, thereby eliminating a channel flow velocity profile where flow volumes near the channel walls run the risk of overexposure to the radiation due to very large residence times within the channel. The device comprises a relatively flat belt chamber (22) connected to a fluid flow through an inlet (24) and an outlet (26) on the belt chamber (22). The belt chamber (22) has a top surface (28) and a bottom surface (30). A radiation permeable plate (32) is disposed adjacent the top surface (28) of the belt chamber (22) and is in contact with the belt chamber (22). A radiation source (42) is provided adjacent to the plate (32) adjacent to a side opposite the belt chamber (22). A belt (34) having a plurality of flexible vanes (36) is disposed adjacent the bottom surface (30) of the belt chamber (22) such that the vanes (36) make contact with the belt chamber (22). The belt is driven by a roller mechanism (38) in the direction of the fluid flow. As the fluid flows through the belt chamber (22), the flexible vanes (36) provide a squeegee-like mechanism to move the fluid through the belt chamber (22) in discrete packets (40) defined by a pair of vanes (36). As the packets of fluid move through the belt chamber, they are exposed to sterilizing radiation passing through the plate (32).

Patent Agency Ranking