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Sterile aspiration/reinjection systems

  • US 20030069543A1
  • Filed: 10/23/2001
  • Published: 04/10/2003
  • Est. Priority Date: 07/10/2001
  • Status: Active Grant
First Claim
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1. A sterile container assembly for delivering repeated precisely controlled volumes of a liquid therefrom in a sterile condition;

  • said sterile container assembly comprising in liquid-tight arrangement;

    a liquid-tight housing with an opening of reduced size relative to the housing;

    wherein the interior of the housing is maintained in a sterile condition and has a maximum internal volume in the range of about 3 ml to about 70 ml;

    a self-sealing puncturable sterile barrier covering the opening for receiving a hollow needle cannula, and a pressure actuator in liquid-tight connection with the interior of the housing, wherein the pressure actuator repeatedly exerts a positive pressure on liquid in the interior of the housing so as to repeatedly expel a precisely controlled volume of the liquid therefrom via the opening without septic contamination of the liquid and without uncontrolled loss of liquid therefrom.

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