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Variable stop syringe

  • US 4,278,086 A
  • Filed: 01/28/1980
  • Issued: 07/14/1981
  • Est. Priority Date: 01/28/1980
  • Status: Expired due to Term
First Claim
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1. A method of aspirating and dispensing one of a plurality of predetermined fluid volumes from a fluid supply comprising:

  • selecting one of the fluid volumes;

    moving a plunger stop corresponding to said selected fluid volume into a fully aspirated position;

    driving a syringe plunger coupled to the fluid supply from a rest or fully dispensed position to the fully aspirated position defined by said plunger stop to aspirate said selected fluid volume; and

    driving said plunger from the fully aspirated position to said fully dispensed position to dispense said selected fluid volume.

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