| 摘要 |
A vaso-occlusive delivery device includes an actuating member disposed at or adjacent to the distal end of a delivery member, the actuating member including an electroactive polymer that can be selectively biased to an expanded or non-expanded state by application of direct current of different polarities. A vaso-occlusive device such as a coil may be detachably secured to the delivery device by expanding the actuating member within a proximal end of the coil to form an interference or friction fit using a first direct current polarity, whereby the coil may be disengaged from the delivery member by application of direct current of a second, opposite polarity. |
