| 摘要 |
This invention is methods, and devices for occlusion of the fallopian tubes of a woman. The method involves thermally damaging the lining of the uterus tub al junction with relatively low power, followed by the placement of a reticulat ed foam plug (34). In one embodiment, vascularized tissue (36) grows into the plug, and prevents or discourages formation of scar tissue around the plug. Another embodiment with a relatively small foam pore size encourages formati on of a vascularized capsule (38) around the plug. The presence of this vascularized capsule limits the patient's foreign body response, so that the capsule does not constrict around the plug. Also presented is a catheter (51 ) designed for wounding the epithelial layer of the uterus tubal junction, and a method of using the catheter to form a long yet shallow lesion in the uterus tubal junction.
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