A device implantable into a blood vessel having a filter to prevent particles from passing into a blood vessel, and having bows extending from a horizontal plain of the device, such bows to hold such device in place in a blood vessel. The control system comprises a communications port for interconnection of the control system with a network for sending outgoing addressed data to other devices on the address-based network and for receiving incoming addressed data from other devices. The daemon process recursively compresses directories of content while instances of the servlet process, in parallel, serve content. A seal member and a metal plate are fixed to one surface of the thermal body.