Patents Assigned to Tri/West Systems, Inc.
  • Patent number: 5490842
    Abstract: A syringe device has a vial for medicaments having a first open end at a scaled second end. The first end having a plunger tip for sealing the end and has a finger grip means mounted adjacent the first. The needle and hub is slidably mounted on a needle on the second end in axial alignment with the sealed end to position said needle for access to the vial. The plunger rod has a first engagement on one end for engagement with the plunger tip and mounting means for detachably mounting the plunger between the finger grip and the hub to prevent access to the vial when the plunger is mounted thereon.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: February 13, 1996
    Assignee: Tri/West Systems, Inc.
    Inventors: John F. Volk, Thomas Michaels
  • Patent number: 5067947
    Abstract: A syringe device has a vial for medicaments having a first open end at a sealed second end. The first end having a plunger tip for sealing the end and has a finger grip means mounted adjacent the first. The needle and hub is slidably mounted on a needle on the second end in axial alignment with the sealed end to position said needle for access to the vial. The plunger rod has a first engagement on one end for engagement with the plunger tip and mounting means for detachably mounting the plunger between the finger grip and the hub to prevent access to the vial when the plunger is mounted thereon.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: November 26, 1991
    Assignee: Tri/West Systems, Inc.
    Inventors: John F. Volk, Thomas Michaels