Intrauterine crushing device

A medical device may include an elongate outer member and an elongate inner member in the elongate outer member. The elongate outer member defines a first lumen and includes a lateral suction port in fluid communication with the first lumen. The elongate inner member is rotatable relative to the elongate outer member and defines a second lumen. The second lumen includes an opening at the distal end of the elongate inner member to provide access to fluid into the second lumen. The elongate inner member has a first lateral passage, where the first lateral passage is rotatable into partial alignment with the lateral suction port to provide or control suction or other fluid communication between the lateral suction port and the second lumen. The medical device also has an electrode at the distal end of the inner member. 一种医疗装置可以包括细长外构件和在细长外构件中的细长内构件。细长外构件限定第一管腔并且包括与第一管腔流体连通的横向抽吸端口。细长内构件能够相对于细长外构件旋转，并且限定第二管腔。第二管腔包括在细长内构件的远端处的开口，以给出流体进入第二管腔中的通路。细长内构件具有第一横向通路，其中，第一横向通路能够旋转到与横向抽吸端口部分对准，以提供或控制横向抽吸端口与第二管腔之间的抽吸或其他流体连通。该