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Sampling device of suction effusion fluid

  • US 5,782,871 A
  • Filed: 02/25/1997
  • Issued: 07/21/1998
  • Est. Priority Date: 02/28/1996
  • Status: Expired due to Fees
First Claim
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1. A sampling device of a suction effusion fluid including:

  • (a) a cell having a vacuum suction port and a skin suction port;

    said vacuum suction port being designed to be connected to a vacuum source on operation;

    said skin suction port being designed to be opposite to a skin surface on operation;

    (b) a slide valve formed in said cell to be movable in a plane approximately parallel to said skin surface;

    said slide valve being used for opening or closing a communication path communicating said skin suction port with said vacuum suction port without releasing the vacuum source of said vacuum suction port to maintain an airtight condition; and

    (c) a plurality of fluid reservoirs formed in said slide valve;

    each of said fluid reservoirs being alternately communicated with said skin suction port and said vacuum suction port through said communication path by sliding movement of said slide valve;

    each of said fluid reservoirs being used for storing an effusion fluid acquired from said skin surface by vacuum suction through said skin suction port;

    wherein said fluid reservoirs are formed in said slide valve; and

    wherein when said slide valve is located at a position where one of said fluid reservoirs is communicated with said skin suction port and said vacuum suction port, at least one of said remaining fluid reservoirs is exposed to the outside of the cell.

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