Bone-penetrating intraosseous access device

An intraosseous access device for accessing an intraosseous space, the intraosseous access device comprising:

• a penetrator assembly having a sharp penetrating end operable to penetrate a bone and associated bone marrow;
• a housing having an internal cavity and an outer sleeve, the outer sleeve defining a handle operable to manually drive the penetrator assembly into the bone and associated bone marrow;
• a retainer having a distal retainer end and a proximal retainer end, the retainer slidably coupled to the outer sleeve;
• and
• a protective shield having a distal shield end, a proximal shield end, and a longitudinal hollow passageway extending between the distal shield end and the proximal shield end, the protective shield slidably coupled to the outer sleeve;
• where the penetrator assembly is operable to provide intraosseous access to the intraosseous space at a sternal insertion site by manually driving the penetrator assembly into the intraosseous space when the intraosseous access device is in a first mode of operation in which the retainer is locked in a deployed position;
• and
• where the penetrator assembly is operable to provide intraosseous access to the intraosseous space at a peripheral insertion site by manually driving the penetrator assembly into the intraosseous space when the intraosseous access device is in a second mode of operation in which the retainer is unlocked from the deployed position and manually slid in a proximal direction relative to the outer sleeve into the internal cavity of the housing to an undeployed position.