The liquid is extracted from the patient, and/or it is the medical device in order delivery to do the liquid in the patient, the particular medical device, pump unit in order to send the liquid (1), the entrance (3) and has the exit (4), and the heating element in order to heat the particular liquid the heat chamber which (5) is included, liquid level measurement expedient (13 - 18) and the particular pump and heating unit (1 and 2) includes the fluid line which is passed, in order the particular heating element (5), the particular heat chamber to be soaked completely in the liquid which (2) is passed, fact, and the particular liquid that is applied,In order measurement expedient, at least to measure liquid temperature in the separate point of 2, it includes the electric parameter measurement expedient in order to measure at least 1 among electric parameters such as thermometry expedient, and are applied to the particular heating element electric current, electric power or the frequency which are applied it regards the aforementioned medical device which is characterized by the fact that. This invention includes usage of the particular device.患者から液体を抽出し、及び/又は患者に液体をデリバリーするための医療装置であって、当該医療装置が、液体を送り込むためのポンプユニット(1)、入口(3)及び出口(4)を備え、そして当該液体を加温するための加熱要素(5)を含む加温チャンバー、液量計測手段(13~18)及び当該ポンプ及び加熱ユニット(1、2)を通過する流体ラインを含み、当該加熱要素(5)が、当該加温チャンバー(2)を通過する液体中に完全に浸漬されるように適用されるという事実、並びに当該液体計測手段が、少なくとも2の別々の点で液体温度を計測するように適用された温度測定手段、及び当該加熱要素に適用される電流、電力又は周波数などの電気パラメーターのうちの少なくとも1を測定するための電気的パラメーター計測手段を含むという事実により特徴付けられる前記医療装置に関する。本発明は、当該装置の使用方法も含む。
