Abstract: A uterine length measurement device includes a first elongate member having a distal end, a proximal end, and a lumen, the elongate member configured for insertion into an endocervical canal where the distal end is configured for insertion to approximately an internal cervical os of the endocervical canal. A second elongate member is provided having a distal end and a proximal end, the second elongate member configured to move within the lumen of the first elongate member, where the distal end can protrude from the distal end of the first elongate member and is configured for insertion to approximately the fundus of a uterine cavity. Moving the second elongate member relative to the first elongate member to position the distal end of the second elongate member at approximately the fundus of the uterus provides a direct measurement of a length of the uterine cavity.

Abstract: A medical device and procedure is described for occluding a fallopian tube. A tubal occlusion device is inserted into a uterine cavity. The device includes an RF applicator head including an electrode carrier with one or more bipolar electrodes thereon. During insertion, the RF applicator head can be in a closed position. The RF applicator head is positioned at a tubal ostium of a fallopian tube, such that a distal tip of the RF applicator head advances into the tubal ostium. The RF applicator head is deployed into an open position such that the RF applicator head approximates the shape of the uterine cavity in a region of the tubal ostium. Current is passed through the one or more bipolar electrodes to the tubal ostium to destroy tissue to a known depth, which precipitates a healing response in surrounding tissue that over time scars and occludes the fallopian tube.

Abstract: A uterine sound is configured having an open and a closed position. Under normal operating conditions, the uterine sound is in the closed position for insertion into a uterus to measure the length of the uterus. Under conditions where there is a risk of the uterine sound perforating a uterine wall, the uterine sound switches into an open position. The open position provides an enlarged surface area of a distal end of the uterine sound that is in contact with a uterine wall and resists perforation by the uterine sound of the uterine wall.