×

Needle-less injector

  • US 20080281261A1
  • Filed: 05/03/2005
  • Published: 11/13/2008
  • Est. Priority Date: 05/03/2005
  • Status: Active Grant
First Claim
Patent Images

1. A needle-less injector device comprising:

  • an inner housing having a leading and a trailing end, the leading end adapted for receiving a vial that includes a nozzle for delivering a fluid held within the vial, the inner housing having a spring powered ram movable from a cocked position to an unloaded position;

    an outer housing supporting the inner housing, the inner housing moving within the outer housing between a safe position and a firing position;

    a tensioning spring between the inner housing and the outer housing, the tensioning spring biasing the inner housing away from the firing position towards the safe position, wherein the tensioning spring is configured to provide force to the vial such that a tip of the vial pulls adjacent skin taut when the inner housing is in the firing position; and

    a trigger in the outer housing, the trigger being operable through the outer housing when the inner housing is in the firing position, the trigger cooperating with the spring powered ram to release the spring powered ram from the cocked position when the inner housing is in the firing position.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×