×

Blood collector

  • US 4,595,021 A
  • Filed: 06/04/1985
  • Issued: 06/17/1986
  • Est. Priority Date: 02/15/1982
  • Status: Expired due to Term
First Claim
Patent Images

1. A blood collector, comprising:

  • a cylindrical body having a closed end an open end;

    a hollow body which is arranged at the closed end of said cylindrical body and which has a hole communicating with an interior of said cylindrical body;

    collection means for communication with the hole of said hollow body;

    a columnar body which is arranged within said cylindrical body to be in tight contact with an inner wall thereof and a distal end of which defines a blood collection space with the closed end of said cylindrical body, said columnar body having a hole which allows said blood collection space to communicate with the outside atmosphere;

    a freeze-dried blood anticoagulant mass which is secured inside said blood collection space and tightly fixed to an inner surface of the closed end of said cylindrical body to block and close the hole of said hollow body, so that jet currents of blood entering the hole of said hollow body under pressure are buffered by said mass, said mass being capable of being dissolved by the entering blood as the blood fills said blood collection space and, said mass having a permeability such that it allows gases to permeate therethrough; and

    a filter which is arranged to laterally cross the hole of said columnar body, said filter being permeable to gases and impermeable to blood at least before being brought into contact with the blood which fills said blood collection space.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×