A disposable wearable infusion device comprises a body arranged to be adhered to a patients skin and to receive a cannula to extend from the infusion device to beneath the patients skin, a reservoir for holding a liquid medicament to be infused into the patient, and a pump that displaces a volume of the liquid medicament from the reservoir to the cannula for delivery to the patient. The body has a port aligned with the cannula that permits the cannula to assume a deployed position to extend from the infusion device to beneath the patients skin. The device further comprises a cover that blocks the port to preclude direct access to the cannula through the port after deployment.
