1. A device with a retractable needle for sampling a fluid, comprising: a body having a proximal end, a distal end and a sidewall extending therebetween, forming an internal passage elongate plunger having a proximal end and a distal end, the distal end of the plunger forms a cavity in the interior passageway to receiving the fluid and a plunger adapted for sliding movement in the interior passageway between a rest position and a retracted position ioporny member mounted at least partially in the internal passage and at least partially retaining the cannula, the distal end of the elongate plunger has an opening through which passes the cannula, wherein the support member is adapted to automatically move from the initial position, in which at least part cannula is outside the body, to a retracted position in which the cannula is completely closed casing, after the transfer of the elongated plunger from an initial position to a retracted polozhenie.2. Apparatus according to claim. 1, wherein the support member is held in the interior passageway by the force treniya.3. Apparatus according to claim. 1, wherein the support element comprises a disk holding kanyulyu.4. Apparatus according to claim. 1, wherein the plunger is formed in the elongate channel through which may pass kanyuli.5 part. Apparatus according to claim. 1, in which the plunger comprises an elongate locking portion connected to its distal end, wherein the channel is formed with the possibility of passing therethrough part kanyuli.6. Apparatus according to claim. 1, in which the cannula has a hole surrounded by a part of the side wall of the housing, so that Adv1. Устройство с убирающейся иглой для отбора текучей среды, содержащее:корпус с проксимальным концом, дистальным концом и проходящей между ними боковой стенкой, формирующей внутренний проходудлиненный плунжер с проксимальным концом и дистальным концом, причем дистальный конец плунжера формирует полость во внутреннем проходе для размещения в ней теку