US Patent 6878151 Medical retrieval device

Compositions comprising devices for retrieving objects from a subject, for example the subject's vasculature, are described. In particular, devices including a catheter shaft having a lumen through which a core wire extends are provided. Proximal and distal junction members are disposed around the core wire and at least one junction member is permanently and slidably attached to the core wire. In addition, the device includes a retrieval element as well as a stop element that is attached to the core wire distal to the catheter shaft. Also described are methods of making and using these devices.