Particle prevention adapter system for injection pen

Abstract

An adapter system for a pharmaceutical dispensing device having a connector that receives a septum of a pharmaceutical cartridge includes an adapter body and an adapter needle. The adapter body is configured to be slideably received within the connector of the pharmaceutical dispensing device. The adapter body includes a neck portion and a head portion extending from the neck portion, the neck portion has a first diameter and an end surface configured to face the septum of the pharmaceutical cartridge when the adapter body is received within the connector. The head portion has a second diameter different than the first diameter. The adapter needle extends from the end surface of the neck portion, away from the adapter body, and is configured to pierce through the septum of the pharmaceutical cartridge when the adapter body is received within the connector.

Dependencies are inferred from the claim text.