Detachable pump for negative pressure wound therapy system, has diaphragm element that is propelled to vibrate when resilience of top and bottom elastic elements are balanced

摘要

The detachable pump comprises a top module (800a) with a top elastic element (809) and a bottom module (800b) with bottom elastic element (811). The resilience of the top elastic element and the bottom elastic element is balanced when the elastic element are pressed opposite to each other, so that a diaphragm element (820) is propelled to vibrate.