Patent ID: 6585791
Filing Date: 2003-07-01
Classification: A61B,B01D

Abstract:
Apparatus for smoke plume evacuation arising from operation of laser-surgical, electrosurgical, radiosurgical, and electrocautery devices, comprising:a) a housing having an air inlet and an air outlet, b) a removable odor-removing main filter having an air inlet and an air outlet inside the housing, the main filter comprising an annular odor-removing member defining an outer channel and an inner channel connected for air flow only through the odor-removing member, the main filter air inlet being connected to one of the outer and inner channels, the main filter air outlet being connected to the other of the outer and inner channels, whereby incoming air must flow through the odor-removing member to reach the main filter air outlet, c) means connecting the main filter air inlet to the housing air inlet, d) motor means in the housing for forcing air to flow between a motor air inlet and a motor air outlet establishing a suction at the motor air inlet, e) means connecting the motor air outlet to the housing air outlet, f) means connecting the motor air inlet to the main filter air outlet, g) a vacuum hose connected to the housing air inlet whereby suction is available at the hose when the apparatus is activated, h) an external viral pre-filter assembly removably connected to the vacuum hose in series with air flow through the hose, i) a wand connected to the viral filter assembly, j) first means for monitoring the air pressure main filter inlet, k) second means for monitoring the air pressure at the main filter inlet.