| 摘要 |
Pipettes for infusing the uterus are disclosed, each pipette being generally comprised of a proximal end, a mid-section and an enlarged distal tip. The proximal end has a coupling portion for engagement with a fluid-expressing syringe. Distal tips disclosed are of two primary shapes, one having a generally hemispherical distal zone of expanding diameter in a distal to proximal direction; and, another having a generally frusto-conical distal zone, with a similary expanding diameter. Each tip also has a frusto-conical proximal zone, decreasing in diameter in a distal to proximal direction. One embodiment includes a generally cylindrical medial zone between its distal and proximal zones. The method of the invention includes using a guide hand in the anal canal above the cervical area to align the enlarged distal end of the pipette with the cervix; driving the pipette through the cervix until a decrease in resistance is sensed; and then, pulling back on the pipette such that its enlarged distal tip effects a sealing action against the rim of the inner cervical opening. Once the fluid is infused into the uterus, the pipette is withdrawn. |
