Patent ID: 8235930

Claim:
A fluid loss detection device, comprising: a patch; a central opening through said patch so that said patch surrounds said central opening; a boundary edge of said patch circumnavigating said patch; a slit through a portion of said patch, wherein said slit originates at said boundary edge of said patch and terminates approximately at said central opening of said patch; a primary loop circuit within said patch and defining a first perimeter therein, wherein said primary loop circuit surrounds said central opening, which forms a target for receipt of a return access site, and wherein said primary loop circuit is a complete loop; an early warning alarm circuit loop within said patch and defining a second perimeter therein, wherein said first perimeter is contained within said second perimeter, and wherein said early warning alarm circuit loop is a complete loop; an emergency shut-down circuit loop within said patch and defining a third perimeter therein, wherein said second perimeter is contained within said third perimeter, and wherein said emergency shut-down circuit loop is a complete loop; and an alarm activated by a status change in properties of said early warning alarm circuit loop, wherein said early warning alarm circuit loop is activated by a small fluid leak and wherein said emergency shut-down circuit loop is activated by a larger fluid loss.