A surgical sponge detection system includes a plurality of surgical sponges (2) having radio frequency identification tags (1) securely attached thereto and a non-optical hand-held reader (40) for detecting the sponges by detecting the tags (1). Also disclosed is a device (30) for automatically counting,...http://www.google.com.au/patents/US8105296?utm_source=gb-gplus-sharePatent US8105296 - Automatic surgical sponge counter and blood loss determination system
