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Injection device

  • US 9,895,493 B2
  • Filed: 05/27/2005
  • Issued: 02/20/2018
  • Est. Priority Date: 05/28/2004
  • Status: Active Grant
First Claim
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1. An injection device comprising:

  • a housing adapted to receive a syringe having a discharge nozzle and a boot that covers the discharge nozzle, the housing defining a first axis and having a first end and a second end, wherein the discharge nozzle is capable of extending from the first end of the housing through an exit aperture, the housing further having a camming surface at the first end; and

    a housing closure member adapted to completely enclose the discharge nozzle and boot when positioned on the housing and having a camming surface for communicating with the camming surface on the housing so that rotation of the housing closure member about the axis causes the housing closure member to move axially away from the housing;

    the housing closure member further comprising means for connecting to the boot of the syringe so that removal of the housing closure member from the housing causes removal of the boot from the syringe, and wherein the means for connecting comprises a pressed grip washer with a profiled internal diameter, and wherein, upon connecting the boot of the syringe to the housing closure member, the grip washer is bent into a frustroconical shape.

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