A flexible mixing pouch with aseptic burstable internal chambers for storing a plurality of substances in isolated, hermetically sealed aseptic chambers therein in order to maintain the freshness and integrity of each pre-measured substance until ready for combining into a desired solution. The interior...http://www.google.com/patents/US6935492?utm_source=gb-gplus-sharePatent US6935492 - Flexible mixing pouch with aseptic burstable internal chambers