Reduced aperture biological specimen collection and transfer device

Reduced aperture biological specimen collection and transfer device

  • CN 101,043,931 B
  • Filed: 10/10/2005
  • Issued: 07/03/2013
  • Est. Priority Date: 10/21/2004
  • Status: Active Grant
First Claim
Patent Images

1. biological specimen filter device comprises:

  • Body, its have the first axial arranged axial end portion and second axial end portion and be formed on described first axial end portion and described second axial end portion between vacuum cavity;

    Annular flange flange, be arranged on described first axial end portion and define hole with described vacuum cavity fluid connection, described annular flange flange has the surface of installation, and the wall of wherein said body terminates in the described second axial end portion place of complete opening and is arranged in the described first axial end portion place of described annular flange flange;

    AndThe biological specimen filtration barrier film is configured for and collects the microcosmic biomone that carries in the liquid thereon, and described filtering diaphragm has and invests the described peripheral edge margin that the surface is installed and across the middle section in described hole,Wherein, described device further comprises;

    Annular ridge, it upcountry is arranged on the described annular flange flange and gives prominence to away from described second axial end portion vertically from described installation radial surface;

    AndEdge, the smooth location of far-end, it is arranged on the described annular ridge, and wherein, described filtering diaphragm places on the described edge.

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