APPLICATOR AND APPLICATOR ASSEMBLY FOR MEDICAL DEVICE

An applicator according to the present invention is an applicator for a medical device, for attaching a medical device to a user's skin, and comprises: an applicator body; an insertion unit installed on the applicator body to insert into the user's skin an insertion part of the medical device including the insertion part of which at least a part is inserted into the user's skin; an actuating part installed on the applicator body to allow at least a part thereof to move from an inactive position to an active position at which the insertion unit can be actuated; and a backstop part which locks at least a part of the actuating part to the active position to prevent the at least a part of the actuating part from returning to the inactive position from the active position.