Patent ID: 8617106

Claim:
A surgical system for preventing collapse of a body chamber being operated upon, due to a vacuum surge following a clearing of an occlusion in an aspiration path ( 23 ) of said surgical system, comprising: an occlusion-break sensor ( 300 ) for sensing said clearing of said occlusion, wherein said occlusion-break sensor ( 300 ) is located proximate a distal end of said aspiration path ( 23 ), said aspiration path ( 23 ) further comprising a collapsible chamber ( 290 ) in fluidic connection therewith; wherein: following said clearing of said occlusion, said collapsible chamber ( 290 ) rapidly expands, thereby increasing the rate of pressure drop, and thereby increasing the sensitivity and response time of said occlusion-break detector sensor ( 300 ); and a normally-closed venting valve ( 57 ) temporarily opening in response to said occlusion-break sensor ( 300 ) sensing said clearing of said occlusion, to reduce the vacuum thereby preventing said vacuum surge and consequent body chamber collapse.