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12 条记录 (耗时 0.01 秒)

    Pipette device constructed to prevent contamination by aerosols or overpipetting
    3.
    发明公开
    Pipette device constructed to prevent contamination by aerosols or overpipetting 失效
    移液采取措施防止污染气溶胶或overpipetting。

    公开(公告)号：EP0631817A1

    公开(公告)日：1995-01-04

    申请号：EP94108752.0

    申请日：1994-06-08

    申请人： POREX TECHNOLOGIES CORP.

    发明人： Smith, Michael W.

    IPC分类号： B01L3/02

    CPC分类号： B01L3/0275

    摘要： In a pipette device, a suction device applies suction to a pipette tip to draw liquid into the pipette tip. A porous plastic plug is mounted in the pipette tip to prevent contamination of the suction device by the liquid sample. The median pore size in the porous plastic plug ranges from 3 microns to an upper limit which varies with the hydrophobicity of the material of the plug.

    Device for separating serum from blood sample
    4.
    发明公开
    Device for separating serum from blood sample 失效
    用于从血液样品中分离血清的装置

    公开(公告)号：EP0096375A3

    公开(公告)日：1985-12-27

    申请号：EP83105473

    申请日：1983-06-02

    申请人： POREX TECHNOLOGIES CORP.

    发明人： Dojki, Kassim H.V.M. ,  Haldopolouis, Iaokim

    IPC分类号： B01L03/14 ,  B01D33/00

    CPC分类号： B01L3/5021 ,  B01D33/01

    摘要： In a serum separator, a sampling tube (13) fits inside of a test tube (11). The sampling tube is provided with an elastomeric piston head (15, 25) at the lower end thereof having an annular lip (21) to engage and form a seal with the inner sidewalls of the test tube. The upper side of the lip is provided with irregularities (23) to break the seal between the lip and the test tube wall upon removal of the sampling tube from the test tube. A porous plastic filter body (17) is mounted in a cavity (20) in the piston head (15, 25). The piston head defines a one-way valve in the form of a ball chamber (27) containing a ball check. When the sampling tube (13) is pushed into the test tube (11) with a blood sample in the test tube, serum will pass through the filter body (17) and valve into the interior of the sampling tube. The valve is constructed so that the serum cannot squirt toward the top of the sampling tube. When the sampling tube has been inserted, the valve will close. When the sampling tube is withdrawn, the reduced pressure in the bottom of the test tube will cause the ball (29) to wedge in sealing engagement in the closed position to retain the serum sample in the sampling tube and isolate it from the residue in the bottom of the test tube.

    Device for separating serum from blood sample
    5.
    发明公开
    Device for separating serum from blood sample 失效
    装置用于血液的血清分离。

    公开(公告)号：EP0096375A2

    公开(公告)日：1983-12-21

    申请号：EP83105473.9

    申请日：1983-06-02

    申请人： POREX TECHNOLOGIES CORP.

    发明人： Dojki, Kassim H.V.M. ,  Haldopolouis, Iaokim

    IPC分类号： B01L3/14 ,  B01D33/00

    CPC分类号： B01L3/5021 ,  B01D33/01

    摘要： In a serum separator, a sampling tube (13) fits inside of a test tube (11). The sampling tube is provided with an elastomeric piston head (15, 25) at the lower end thereof having an annular lip (21) to engage and form a seal with the inner sidewalls of the test tube. The upper side of the lip is provided with irregularities (23) to break the seal between the lip and the test tube wall upon removal of the sampling tube from the test tube. A porous plastic filter body (17) is mounted in a cavity (20) in the piston head (15, 25). The piston head defines a one-way valve in the form of a ball chamber (27) containing a ball check. When the sampling tube (13) is pushed into the test tube (11) with a blood sample in the test tube, serum will pass through the filter body (17) and valve into the interior of the sampling tube. The valve is constructed so that the serum cannot squirt toward the top of the sampling tube. When the sampling tube has been inserted, the valve will close. When the sampling tube is withdrawn, the reduced pressure in the bottom of the test tube will cause the ball (29) to wedge in sealing engagement in the closed position to retain the serum sample in the sampling tube and isolate it from the residue in the bottom of the test tube.

    Diagnostic system employing a unitary substrate to immobilize microspheres
    8.
    发明公开
    Diagnostic system employing a unitary substrate to immobilize microspheres 失效
    使用单位基底进行固定微孔的诊断系统

    公开(公告)号：EP0299299A3

    公开(公告)日：1991-03-13

    申请号：EP88110558.9

    申请日：1988-07-01

    申请人： POREX TECHNOLOGIES CORP. OF GEORGIA

    发明人： Smith, Michael W. ,  Pierce, Robert S.

    IPC分类号： G01N33/543

    CPC分类号： G01N33/54366 ,  C09J2203/102 ,  G01N33/54386

    摘要： In a diagnostic apparatus system, a one piece porous substrate (31) is provided in a container (33). The substrate serves both to extract an antigen in or on a top layer (36) thereof with the remainder of the substrate serving as a reservoir. The pores in the top surface (38) of the substrate are microscopic for entrapment of microspheres carrying antibodies. A target antigen in a test sample attaches to the antibodies when the test sample is poured through the top layer. The pores in all but the top layer of the substrate have a much greater pore size to comprise the reservoir portion of the substrate.