Patent ID: 7896835

Claim:
A method of measuring fluid flow from a fluid source to a baby's mouth through a nipple comprising: providing at least one feeding pathway for fluid flow from the fluid source to the baby's mouth, wherein the feeding pathway has a first opening adapted to be in communication with the fluid source and a second opening adapted to be in direct communication with the baby's mouth; and providing at least one indicator pathway having a different length from the feeding pathway for indicating an amount of fluid provided to the baby's mouth through the feeding pathway, wherein the indicator pathway has a first opening adapted to be in communication with the fluid source and a second opening adapted to be in direct fluid communication with the baby's mouth, receiving suction from the baby's mouth; providing the suction to the feeding pathway and the indicator pathway; and measuring the amount of fluid drawn into and retained in the indicator pathway, whereby the amount of fluid drawn into and retained in the indicator pathway is indicative of the amount of fluid drawn into the feeding pathway.