1. Intravenous pump comprising: a housing, the permanent magnet coupled to the housing, wherein the permanent magnet is arranged to generate a magnetic field, an electromagnet coupled to the housing, wherein the electromagnet is adapted to generate the power-on, the magnetic field that suppresses the magnetic near field of the permanent magnet ipereklyuchatel coupled to the electromagnet, wherein the switch is configured to optionally include power or power off elektromagnita.2. . Intravenous pump according to claim 1, wherein: a housing configured to receive a cassette which contains a portion of the intravenous set cassette contains magnetically attached member ipostoyanny magnet adapted to attract magnetically element and thereby attach and hold the cassette in the housing when the electromagnet power vyklyucheno.3. Intravenous pump according to claim. 2, further comprising a spring member attached to the housing, wherein the spring element is adapted to apply a force to the cassette to throw out the cassette from the housing, the force of the spring member is sufficient to overcome the residual attracting force between the intravenous pump and cassette, which is present when the electromagnet power vklyucheno.4. Intravenous pump comprising: a housing an electromagnet fixed to the housing, wherein the electromagnet is adapted to generate the power-on, the magnetic field of a first polarity or the second polarity, the second polarity opposite the first polarity ipereklyuchatel attached to1. Внутривенный насос, содержащий:корпуспостоянный магнит, соединенный с корпусом, причем постоянный магнит выполнен с возможностью генерировать магнитное полеэлектромагнит, соединенный с корпусом, причем электромагнит выполнен с возможностью генерировать, при включении питания, магнитное поле, которое почти подавляет магнитное поле постоянного магнита ипереключатель, соединенный с электромагнитом, причем переключатель выполнен с возможностью по выбору включать питание или выключа
