Systems, devices, and methods for treating a tissue site on a patient with reduced pressure are presented. In one instance, a reduced-pressure treatment device to treat a tissue site with reduced pressure may include a pump control unit fluidly separate from a collection unit. Pump energy may be provided by the pump control unit to deflect one or more diaphragms within the collection unit to create reduced pressure. Other systems, devices, and methods are presented.本發明提供用於藉助減壓治療一患者上之一組織部位之系統、裝置及方法。在一個實例中,用以藉助減壓治療一組織部位之一減壓治療裝置可包括與一收集單元流體分離之一泵控制單元。可藉由該泵控制單元提供泵能量以使該收集單元內之一或多個隔板轉向以形成減壓。本發明提供其他系統、裝置及方法。