| 摘要 |
A controller for a suction instrument used in medicine to remove mucous, secretions or blood, consists of two one-piece components: a body (1) with a through channel (3) and a nozzle (4) and a rotary control knob (2) with a shutter (5) which opens or closes the channel and a seal lip (7) which fits into an annular groove (8). The body and control knob of the suction controller are made from a rigid plastic, preferably polyethylene, and can be made in the same mould. |
