Crawford J S
Can J Ophthalmol. 1977 Oct;12(4):289-92.
It maybe difficult to maintain the patency of the lacrimal system in some cases of congenital obstruction after chronic infection or after trauma. Intubation is carried out using silicone tubing to which is attached a stainless steel wire probe which has a knob on the end. This is engaged by a special hook which is used to draw the wire out from under the inferior turbinate. After leaving the tubes in place for 4 to 6 months the obstructed area is usually epithelialised.
在某些先天性阻塞病例中，慢性感染后或外伤后，维持泪道系统通畅可能会很困难。插管时使用硅胶管，硅胶管上连接有一根不锈钢丝探针，该探针末端有一个旋钮。通过一个特殊的钩子将其钩住，该钩子用于将钢丝从下鼻甲下方引出。将管子留置4至6个月后，阻塞区域通常会被上皮化。
