Patent ID: 6884158
Filing Date: 2005-04-26
Classification: A61B,A61G

Abstract:
1. A placing unit, comprising: a work table having a support base and a non-perforated work surface having a plurality of airflow slots in a middle portion thereon, a peripheral edge, a plurality of airflow slots on said peripheral edge, an emitting unit supported above said work surface, said emitting unit having a plurality of vanes for providing a laminar airflow through said plurality of airflow slots on said work surface and said plurality of airflow slots on said peripheral edge, a filter screen disposed on said emitting unit, a filter unit, a suction tube having a first end and a second end, said first end of said suction tube is operatively connected to said filter unit, and said second end of said suction tube is operatively connected to said plurality of slots on said work surface and said plurality of slots on said peripheral edge.