| 摘要 |
<p>The childbirth-assisting device uses an automatically synchronized expandable pneumatic girdle to externally augment the secondary force of labor. The pneumatic girdle is fitted around the abdomen of the woman and the girdle is inflated to create a downward pressure on the abdomen when a contraction occurs. The synchronization of the girdle's inflation and the contractions is provided by an electronic controller which receives a signal from an intra-uterine monitor indicating a contraction and causes the girdle to inflate at a certain rate until a preset intra-uterine pressure is attained. Once the intra-uterine pressure reaches the pre-set pressure, the girdle pressure is maintained until the offset of the contraction is detected, at which time the girdle is deflated.</p> |
