A drainage catheter includes a tubular member with an anchor at a distal end and suture threads extending from the anchor to the proximal ends of the tubular member. A locking mechanism attaches to the proximal end of the tubular member and includes a body with an extension of the lumen. A displaceable...http://www.google.com/patents/US6159177?utm_source=gb-gplus-sharePatent US6159177 - Drainage catheter anchor locking mechanisms
