Patent ID: 9566390
Date: 2017-02-14
CPC Classifications: A61M

Claim:
1. A medication delivery device configured to contain a drug to be delivered, the medication delivery device comprising: a housing, a cap configured to be: (i) removed from the housing and set aside during delivery of the drug and (ii) reattached to the housing after delivery of the drug, a moveable element, and a locking portion configured to lock the cap and to function based on an amount of the drug that the medication delivery device contains when the cap is reattached, wherein the housing comprises an aperture, wherein, in a first state in which the medication delivery device contains more than a predetermined amount of the drug, the cap is removable from the housing if the cap is reattached, and wherein, in a second state in which the medication delivery device contains equal or less than the predetermined amount of the drug, the moveable element is configured to push the locking portion radially outward through the aperture in the housing such that the locking portion is configured to lock the cap if the cap is reattached over the locking portion.