drop lock การใช้

The drop lock is automatically released when the applier is compressed.
The applier grasps the clip and holds the legs open by way of a drop lock on its proximal end.
A drop lock can consist of two conventional lock chambers leading to a sump pound, or a single long chamber incorporating the sump-although the term properly applies only to the second case.
While the concept has been suggested in a number of cases, the only example in the world of a drop lock that has actually been constructed is at Dalmuir on the Forth and Clyde Canal in Scotland.