Patent ID: 8439838

Claim:
An inserter for a transcutaneous sensor comprising: a housing, the housing comprising housing guiding members on an internal surface of the housing; a carrier body, the carrier body comprising carrier body guiding members on an external surface of the carrier body, wherein the carrier body guiding members and the housing guiding members guide movement of the carrier body relative to the housing between a retracted and an advanced position; a needle hub comprising an insertion needle for piercing of the skin and an unreleasable locking member for interacting with a corresponding locking member on the carrier body; a sensor housing comprising a sensor part configured for subcutaneous placement, the sensor housing and the needle hub being releasably connected to each other, wherein the insertion needle is adjoined to the sensor part when the sensor housing and the needle hub are connected, wherein the insertion needle has a proximal and distal end along a longitudinal axis, wherein the sensor part has a proximal and distal end along the longitudinal axis therebetween, and wherein the needle at least partly surrounds the sensor part along the longitudinal axis; and a spring unit connected to a release member, the release member being activatable so that the spring unit moves the sensor housing, the needle hub and the carrier body to an advanced position for subcutaneous placement of the needle and sensor part.