Abstract: Uterine sounds are provided including an insertion member having a distal end, a proximal end, and a lumen, wherein the insertion member is configured for insertion through an endocervical canal. A measurement member is provided having a distal end and a proximal end, the measurement member configured to move within the lumen of the insertion member, where the distal end can protrude from the distal end of the insertion member and is configured for insertion to approximately the fundus of a uterine cavity. An expansion member is also provided transitionable between an unexpanded and expanded state, wherein the unexpanded position is configured to pass an internal cervical os, and the expanded position is configured to prevent passage. Once the expansion member is positioned, the measurement member is positioned relative to the insertion member to establish a measurement of a depth of the uterine cavity.

Abstract: A rotor assembly includes an actuator moveable between a first position and a second position. The rotator assembly also includes an engagement mechanism connected and moveable relative to the actuator, wherein the engagement mechanism engages a portion of a centrifuge when the actuator is in the first position and disengages from the portion of the centrifuge when the actuator is in the second position. Also, a method of connecting a rotor assembly to a centrifuge.

Abstract: A rotor assembly includes an actuator moveable between a first position and a second position. The rotator assembly also includes an engagement mechanism connected and moveable relative to the actuator, wherein the engagement mechanism engages a portion of a centrifuge when the actuator is in the first position and disengages from the portion of the centrifuge when the actuator is in the second position. Also, a method of connecting a rotor assembly to a centrifuge.