Patents Represented by Attorney Gary M. Crandell & Polumbus Polumbus
  • Patent number: 4257426
    Abstract: A syringe device has a hollow tubular body that receives a resilient sealing member rotatably connected to a hollow plunger. A vacuum pump is connected through a flexible tube to the hollow plunger to thereby withdraw blood using the vacuum created. Once in the syringe body, blood is automatically exposed to an anti-coagulant stored within the syringe body. The anti-coagulant is in flake form and premanufactured from a heparin solution which is allowed to evaporate on a non-stick surface.
    Type: Grant
    Filed: June 22, 1979
    Date of Patent: March 24, 1981
    Assignee: Marquest Medical Products, Inc.
    Inventor: Donald L. Bailey