In accordance with embodiments of the present invention, a debris removal system is provided for a body-space drainage system having one or more body tubes with a body tube lumen disposed therein. The debris-removal system comprises a cleaning member, a collapsible sheath, and a coupler. The cleaning...http://www.google.ca/patents/US7854728?utm_source=gb-gplus-sharePatent US7854728 - Body-space drainage-tube debris removal
