Abstract: An apparatus to establish access into the uterus and the fallopian tubes of a female for diagnostic or therapeutic procedures includes a cervical access catheter, an ostial access catheter insertable through the cervical access catheter, and a fallopian access catheter insertable through the ostial access catheter. The cervical access catheter incorporates a distally located intrauterine balloon which is inflatable after insertion into the uterus. The cervical access catheter also incorporates a cervical retention disk which can be slid into position against the anterior lip of the cervix to anchor the cervical access catheter into the cervical canal between the intrauterine balloon and the cervical disk. Once the cervical access catheter is properly anchored, the ostial access catheter is inserted through the cervical access catheter.

Abstract: A catheter system comprises a flexible catheter tube or body having a housing secured to its distal end. A plurality of structurally distinct terminal components are provided to attach to the forward end of the housing, while a plurality of interchangeable interventional elements are provided to attach to a drive member within the catheter. By properly selecting the terminal components and the interventional elements, a wide variety of specific therapeutic and diagnostic capabilities may be provided.