Medical device for detecting at least one analyte in a body fluid

A medical device for monitoring an analyte in a body tissue or fluid, the medical device comprising:

• a housing defining a sealed sensor compartment, the housing comprising an upper cap, a lower cap, and an intermediate component,
• the housing comprising an electronics compartment at least partially receiving an electronics unit;
• and
• an analyte sensor comprising an insertable portion adapted for at least partially being inserted into the user's body tissue,
• the upper cap comprising a cannula, the insertable portion of the analyte sensor being received inside the cannula,
• the intermediate component defining a sealed opening, and the analyte sensor extending from the sealed sensor compartment through the sealed opening to the electronics compartment,
• the analyte sensor being operably connected to the electronics unit,
• the intermediate component defining a cannula aperture extending from an upper surface opening to a lower surface opening,
• the lower cap sealing with the lower surface opening of the intermediate component, the lower cap comprising an interior volume receiving the cannula and the insertable portion of the analyte sensor,
• the lower cap comprising an end opening sealing against the intermediate component, the end opening of the lower cap sealing around the lower surface opening,
• the lower cap being configured for removal prior to insertion of the analyte sensor,
• the upper cap sealing the upper surface opening of the intermediate component, the upper cap and cannula being configured for removal after insertion of the analyte sensor,
• the cannula extending downwardly from the upper cap, through the cannula aperture, and beyond the lower surface opening, the insertable portion of the analyte sensor extending downwardly beyond the lower surface opening, and the lower cap extending downwardly from the intermediate component,
• the upper cap and the lower cap thereby forming with the intermediate component the sealed sensor compartment surrounding and sealing the insertable portion of the analyte sensor from an external environment,
• the lower cap being attached to a lower cover, the lower cover being configured for removal prior to insertion of the analyte sensor, removal of the lower cover removing the lower cap and opening the sealed sensor compartment,
• the upper cap being fixedly attached to an upper cover,
• the upper cap and the intermediate component being configured to move together to insert the cannula and the insertable portion of the analyte sensor into the skin,
• the cannula being configured to be removed from the skin after insertion of the insertable portion of the analyte sensor, leaving the analyte sensor implanted in the skin,
• the cannula being configured to be withdrawn into the upper cover after insertion of the analyte sensor,
• the upper cover being configured for removal after insertion of the analyte sensor, and
• the lower cover being attached to the upper cover.