The invention relates to a nasogastric tube feeder.Including: a feeding connector and a nasogastric tube,The feeding connector is connected with one end of the nasogastric tube.The feeding joint is a tube made of elastic material.A channel is arranged inside the feeding connector.The passage is provided with a ring-shaped closed rib.The central part of the annular closed rib forms a communicating hole smaller than the channel.In addition, the passage is provided with a spherical seal.Under normal condition, the spherical seal closes the communicating hole in the center of the annular seal rib by gravity.And press the feeding joint outside to the position where the rib should be closed circularly.The feeding joint is elastically deformed, and the ball seal is pushed upward from the communicating hole in the center of the ring seal rib.The connecting hole can be opened.本創作一種鼻胃管餵食器，包含：一餵食接頭及一鼻胃管，該餵食接頭與該鼻胃管一端組接，餵食接頭為彈性材質製成之管狀體，該餵食接頭內部設有一通道，該通道上設有一環狀封閉凸肋，該環狀封閉凸肋中央形成一小於通道之連通孔，另該通道內裝設有一球狀封閉件，該球狀封閉件常態下藉由重力封閉該環狀封閉凸肋中央之連通孔，而按壓餵食接頭外部對應該環狀封閉凸肋的位置，使餵食接頭彈性變形將球狀封閉件往上頂離環狀封閉凸肋中央之連通孔，即可使連通孔導通。
