| 摘要 |
<p>An adjustable speculum includes a base rotatably supporting a pair of shafts, and a pair of dilating members. Each dilating member has a distal end for contacting and restraining a wall of the orifice and a proximal end for detachably engaging a respective shaft. The base includes a mechanism for adjusting the distance between the shafts whereby the distance between the proximal ends of the dilating members is adjustable. Each shaft includes a portion for preventing the dilating member from rotation with respect to the shaft. The distance between the distal ends of the dilating members is also rotatably adjustable.</p> |
