PERCUTANEOUSLY RETRIEVABLE STENT ASSEMBLY WITH FLUID DRAINING CAPABILITY

摘要

The present invention provides a stent assembly (10) for expanding a bodily passage in a patient and draining a fluid therefrom. The assembly (10) comprises at least on expandable stent (12) and an elongated carrier (11) for delivery or retrieval of the stent (12). The stent (12) is circumferentially attached to a distal end (2) of the carrier (11). The carrier (11) defines at least two concentric lumens (17, 19) therethrough, a drainage lumen (17) in fluid communication with the bodily passage for drainage of the flui and an inflation lumen (19) in fluid communication with the expandable stent (12). The invention also provides a method of expandin a bodily passage in a patient and draining a fluid therefrom. The method comprises providing a stent (12) assembly of the present invention; inserting a guidewire into the bodily passage through the drainage lumen (17) of the carrier (11); advancing the assembly (10) along the guidewire until the assembly (10) reaches a desired location; expanding the stent(12); and draining the fluid through the drainage lumen (19) of the carrier (12).