| 摘要 |
Pipettes for infusing the uterus are disclosed, each pipettes being generally comprised of a proximal end, a mid-section and an enlarged distal tip. The proxi mal end has a coupling portion for engagement with a fluid-expressing syringe. Distal ti ps 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 gene rally frusto-conical distal zone, with a similarly expanding diameter. Each tip also h as a frusto-conical proximal zone, decreasing in diameter in a distal to proximal dir ection. One embodiment includes a generally cylindrical medial zone between its distal and p roximal 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, d riving the pipette through the cervix until a decrease in resistance is sensed, and, then p ulling back on the pipette such that its enlarged distal tip effects a sealing action against t he rim of the inner cervical opening. Once the fluid is infused into the uterus, the pipette i s withdrawn.
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