Patent ID: 8221348
Filing Date: 2012-07-17
Classification: A61B,A61M

Abstract:
1. An evacuation sheath assembly comprising: a first elongate tubular member having a distal end, a proximal end and an evacuation lumen extending therebetween, wherein the evacuation lumen is configured to be placed in fluid communication with a bloodstream; a second elongate tubular member having a distal end, a proximal end and an inflation lumen extending therebetween; an expandable sealing member mounted on the distal end of the first elongate tubular member and having a chamber in fluid communication with the inflation lumen; a gas inflator having a pressure regulating mechanism comprising a vacuum chamber, a pressure chamber, and a shuttle configured to move between a first position in which the pressure chamber is in fluid communication with a high pressure gas source, a second position in which the pressure chamber is in fluid communication with the inflation lumen, and a third position in which the vacuum chamber is in fluid communication with the inflation lumen.