Patent ID: 8678051

Claim:
An instrument for filling, from a storage reservoir, a substance supply container of a device for personal care treatment, wherein the substance supply container comprises a refill socket and, a passage in the refill socket, and a valve body that closes off the passage, the passage having an inlet end, and the valve body having a recess, and wherein the instrument comprises: a filling needle having a proximal end which is suitable for connection to the storage reservoir, and having a distal end having a frontal face, a substance transport conduit extending from the proximal end to at least one outlet provided in a surface portion of the filling needle facing in a radial direction of the filling needle closely adjacent the distal end of the filling needle; and a sleeve around the filling needle movable between a first position, in which the sleeve closes off the at least one outlet, and a second position, in which the sleeve is moved away from the first position and the at least one outlet towards the proximal end; wherein the sleeve has a distal end face arranged for sealingly contacting the inlet end of the passage in the refill socket, and wherein the frontal face of the distal end of the filling needle has at least one projection extending in an axial direction of the filling needle for releasable engagement with the recess of the valve body that closes off the passage.