PEN STYLE INJECTOR WITH AUTOMATED SUBSTANCE COMBINING FEATURE

摘要

A pen-style injector (20) includes an automated mover (70) that completes a combination of two substances such as a reconstitution process to reconstitute a lyophilized medicament prior to making an injection. The automated mover (70) is preloaded and selectively released to automatically reconstitute the medicament at a controlled rate. The illustrated embodiment includes a mechanical spring (70) that provides the necessary movement of components within the injector (20) to complete the automated reconstitution process. The injector also has safety features (100) to prevent an injection prior to completing the automated combination of the substances.