公开(公告)号：EP0026992B1

公开(公告)日：1984-05-16

申请号：EP80303248.1

申请日：1980-09-15

申请人： Erickson, Norman R

发明人： Erickson, Norman R

IPC分类号： A61C17/04

CPC分类号： A61C17/043

公开(公告)号：EP0026992A1

公开(公告)日：1981-04-15

申请号：EP80303248.1

申请日：1980-09-15

申请人： Erickson, Norman R

发明人： Erickson, Norman R

IPC分类号： A61C17/04

CPC分类号： A61C17/043

摘要： A dental appliance for evacuating debris and liquid from the mouth during dental operations comprising a collector member (10) having a semi-rigid bite block portion (47) and a combination tongue guard and a collector membrane holder (49) connected to the bite block portion (47) and carrying a flexible collector membrane (24) detachably secured to the bite block portion (47). the collector membrane (24) in use engaging the tissues of the mouth so as to separate the mouth into two compartments. a forward compartment for working in and a rear compartment.