Infusion Set and Inserter Assembly Apparatuses, Systems, and Methods

An inserter assembly comprising:

• a casing having an open end and a closed end;
• a first unit at least partially within the casing movable relative to the casing comprising:
• an interior housing defining a pocket having a shelf most proximate the open end;
• a device base;
• a sharp bearing body, displaceable between a raised state, a forward state, and a retracted state;
• a retractor, the sharp bearing body being at least partially disposed within the retractor;
• a spring positioned to displace the retractor from an initial position to a retracted position when released from a distorted state;
• and
• a spring release latch having an engaged state and a released state, the spring displacing the retractor and the sharp bearing body to a retracted state when the spring release latch is transitioned from the engaged state to the released state;
• and
• wherein one of the casing and the retractor includes a protrusion disposed out of alignment with the axis of the casing which blocks displacement of a portion of the sharp retractor, rotationally displacing the retractor and sharp bearing body as the retractor is displaced to the retracted state, a tip of a sharp of the sharp bearing body disposed in the pocket when the sharp bearing body is in the retracted state.

An inserter assembly comprising:

• a casing having an open end and a closed end, at least one protuberance extending toward the open end disposed opposite the closed end;
• a guide body disposed within the casing defining at least one guide and at least one pocket having a ledge at a point most proximate the open end;
• a patient care assembly base;
• a sharp holder including an insertion sharp, the sharp holder displaceable between a raised state, a forward state, and a retracted state;
• a sharp retractor, the sharp holder being at least partially disposed within the sharp retractor;
• a retraction spring configured to drive the sharp retractor from an initial position to a retracted position;
• and
• a retraction spring release latch having an engaged state and a released state, the retraction spring displacing the sharp retractor and the insertion sharp along a retraction stroke when the retraction spring release latch is transitioned from the engaged state to the released state;
• and
• wherein the sharp retractor displaces along the at least one guide in a first portion of the retraction stroke and is unguided for a second portion of the retraction stroke, the at least one protuberance impeding displacement of a portion of the sharp retractor during at least a part of the second portion of the retraction stroke, a tip of the insertion sharp disposed in the pocket at the conclusion of the retraction stroke.