SEALING DEVICE FOR DRY ANALYZER ELEMENT

PURPOSE: To prevent the deterioration of the performance of an element by positively discharging gas or the like generated by this processing when heat fusing is performed at the specified part of a dry analyzer element and sealing is performed. CONSTITUTION: The lower surface of a surrounding means 12 is opened. Gas outside the surrounding means 12 flows into the surrounding means 12 through this opening due to the gas sucking operation by a gas intake part. At the same time, the gas or the like generated from heat fused part 16 of a web 10 is sucked into the surrounding means 12 together with the inflow gas. The gas or the like sucked into the surrounding means 12 is lifted up between the outer wall of the tip part of a laser torch 11 and the inner wall of the surrounding means 12 and sucked into the direction of the sucking part through an exhaust tube part 13 and a duct 14. A part of the gas is removed by a filter and the like. Furthermore, the web part other than the heat fused part 16 of the web 10 of a dry analysis film is coated with a light screening mask 15.