An indirect calorimeter for measuring the metabolic rate of a subject includes a disposable portion and a reusable portion. The disposable portion includes a respiratory connector configured to be supported in contact with the subject so as to pass inhaled and exhaled gases as the subject breathes. The...http://www.google.com.au/patents/US20030065275?utm_source=gb-gplus-sharePatent US20030065275 - Metabolic calorimeter employing respiratory gas analysis
