| 摘要 |
<p>An apparatus including an aspiration conduit (1), a pump (2) and a pressure transducer (3) and logic console (4) which determines vacuum level fluctuations in the aspiration conduit. The aspiration conduit is connected to a surgical cavity. The pump (2) creates a vacuum in the aspiration conduit (1) downstream and transports the fluid and/or tissue material from the surgical cavity, through the aspiration conduit and into a collection container (11). The logic console (4) responds to a predetermined rate of decrease in vacuum in the aspiration conduit (2) and causes an electric signal to be sent to the pump (2), which upon receipt of the signal reverses its action and/or to an electromechanical valve located along the aspiration conduit (2) that in response to receipt of the signal occludes the aspiration conduit and terminates the removal of tissue or fluid from the surgical cavity. The reversal of rotation prevents the occurrence of a fluid surge that would result in the collapse of a surgical cavity. In addition, a surgical tool (24) is disconnected from its source of power when the temperature of the surgical tool is above a predetermined value.</p> |
