Patent ID: 11931072
Assignee: COVIDIEN LP
Field: Chemical engineering (Chemistry)
Classification: CPC A  B | IPC A  B

Claim 0:
1. A surgical access device comprising:
a housing;
an elongate tubular member extending distally from the housing, the elongate tubular member having an open distal aperture;
a first electrode circumferentially disposed about a first region of the elongate tubular member, the first electrode electrically coupled to an anode of a power supply and configured to provide airborne particulate matter with a negative electric charge;
a second electrode circumferentially disposed about a second region of the elongate tubular member that is proximally spaced from the first region of the elongate tubular member, the second electrode electrically coupled to a cathode of the power supply and configured to attract the airborne particulate matter; and
a source of vacuum coupled to the housing to, in operation of the surgical access device, evacuate the airborne particulate matter through the elongate tubular member.