| 摘要 |
PCT No. PCT/SE92/00032 Sec. 371 Date Jul. 6, 1993 Sec. 102(e) Date Jul. 6, 1993 PCT Filed Jan. 21, 1992 PCT Pub. No. WO92/12686 PCT Pub. Date Aug. 6, 1992.An extractor for extracting by suction dust and vapor generated during dental treatment. The device includes a hood-like member (1) which is intended to be placed over the patient's teeth, and a suction device (2) having a suction nozzle located within the hood-like member (1). The hood-like member (1) has a part which faces towards the free ends of the teeth and which is provided with an opening (10) through which dental work can be carried out. The hood-like member is made from a readily-shapable and/or resilient material. Bendable inserts (11, 12, 50) can be placed in or on the walls (41, 42) of the hood-like member, on opposite sides of the opening (10). The part of the suction device located nearest the hood-like member includes a handle (63) by means of which the hood-like member can be placed over and held in position on the patient's teeth. |
