Patent ID: 7377913

Claim:
A plug-on body positioned on a device to administer an injection, the device having an outer casing, a rotatable dosing mechanism to select a dose amount to be administered, an activating element to initiate administration of the injection, and a protrusion formed on the surface of the outer casing, the plug-on body comprising: a) a first plug-on body section positioned on the outer casing of the device and having an elongated groove extending the length of the first plug-on body section along a longitudinal axis of the device, wherein the elongated groove has a narrow portion to slide on the protrusion formed on the surface of the outer casing of the device and a widened portion to accommodate the protrusion to lock the plug-on body to prevent axial and rotational movement of the plug-on body in relation to the outer casing of the device; b) and a second plug-on body section fixedly attached to the first plug-on-body section and positioned proximal to the activating element of the device, wherein the second plug-on body section extends over the rotatable dosing mechanism of the device, to prevent adjustment of the rotatable dosing mechanism of the device.