Disclosed is a nutrient from nutrient bag efficiently and stable flow rate continuously can be pushed out to the last , and to provide a novel medical gavage implanter. A (a) and discharging the pressurized air from the bag pressing means and (b) a pressurized air to the pressurized air chamber and the electric pump 74 supplies (c) pressurized air chamber with a pressurized air chamber the oN-OFF and the pump switch 94 (f) pressurized air to operate the exhaust valve 78 (d) and the electric pump 74 exhaust valve 78 the pressure line to be connected to the pressurized air chamber (e) and the electric pump 74 to a pressure sensor 76 for measuring the pressure chamber (g) the pressurized air chamber of the pressure control means 86 for switching the pump switch 94 depending on the pressure and (h) pressurized metered time means to measure the elapsed time when the compressed working 104 and (i) pressurized air chamber medical tube feeding infusion apparatus provided with means for determining the pressure increase speed. [ Selection Figure Figure 6【課題】栄養剤バッグから栄養剤を効率的に且つ安定した流量で継続的に最後まで押し出すことが出来る、新規な医療用経管栄養注入装置を提供する。【解決手段】(a)加圧空気室を備えたバッグ加圧手段と(b)加圧空気室に加圧空気を供給する電動ポンプ74と(c)加圧空気室から加圧空気を排出する排気弁78と(d)電動ポンプ74と排気弁78を加圧空気室に接続する空気圧管路と(e)電動ポンプ74の作動をON-OFFするポンプスイッチ94と(f)加圧空気室の圧力を計測する圧力センサ76と(g)加圧空気室の圧力に応じてポンプスイッチ94を切り替える加圧制御手段86と(h)加圧作動時に経過時間を計測する加圧計時手段104と(i)加圧空気室の圧力上昇速度を求める手段とを設けた医療用経管栄養注入装置。【選択図】図6
