PROBLEM TO BE SOLVED: To provide an organ storage device capable of ensuring a flow rate of a liquid in an organ while suppressing an increase in pressure of the liquid flowing in the organ when the organ is stored while perfusing the liquid outside the body. SOLUTION: For an organ container 10 capable of forming an organ housing space 13 closed inside, an organ holder 20 for holding an organ 9 in the organ housing space 13, and an organ 9 held by the organ holder 20 The organ storage space 13 is provided with a liquid supply pipe 40 for supplying a liquid, a drainage pipe 50 for discharging the liquid from the organ 9 held by the organ holding portion 20, and an air pressure adjusting portion 60 for adjusting the air pressure of the organ housing space 13. An organ storage device capable of adjusting the pressure of a liquid flowing through the organ 9 by adjusting the atmospheric pressure of the liquid to suppress the increase in the pressure of the liquid and ensuring the flow rate of the liquid in the organ. [Selection diagram] Figure 1【課題】体外において臓器に液体を灌流させつつ臓器を保存する際に、臓器内を流れる液体の圧力上昇を抑えつつ、臓器内における液体の流量を確保することができる臓器保存装置の提供。【解決手段】内部に閉鎖された臓器収容空間１３を形成可能な臓器収容器１０、臓器収容空間１３において臓器９を保持する臓器保持部２０、臓器保持部２０に保持された臓器９に対して液体を供給する給液管４０、臓器保持部２０に保持された臓器９から液体を排出する排液管５０、及び臓器収容空間１３の気圧を調整する気圧調整部６０を備え、臓器収容空間１３の気圧を調整することにより、臓器９内を流れる液体の圧力を調整し、液体の圧力上昇を抑えつつ、臓器内における液体の流量を確保することができる臓器保存装置。【選択図】図１
