Patent ID: 7892821

Claim:
A culture chamber which cultivates a culture object by circulating a culture liquid, comprising: a main body part; a culture space part that is formed in said main body part, houses said culture object, and circulates said culture liquid; blockading plates that are detachably attached to said main body part, and open and close said culture space part; an introducing part that is opened in a wall part of said main body part, and introduces said culture liquid into said culture space part; a discharging part that is opened in said wall part of said main body part, and discharges said culture liquid from said culture space part; and a flow arrangement part that is placed in said culture space part, said flow arrangement part causing said culture liquid, which is introduced into said culture space part from said introducing part, to diffuse from inner wall surfaces of said culture space part toward a direction which intersects a virtual line connecting said introducing part with said discharging part, wherein said culture space part includes a first inner wall surface that is formed in said main body part and surrounds said culture object, and second inner wall surfaces that are formed by said blockading plates and constitute said flow arrangement part, wherein said flow arrangement part includes: a vertical wall that has a wall surface opposite to a flow of said culture liquid introduced into said culture space part from said introducing part, and reduces flow velocity of said culture liquid; a small space part, at a side of said introducing part, that is surrounded by said vertical wall of said culture space part and an inner wall surface of said culture space part, said small space part being divided in said culture space part; and slit portions that are formed by said vertical wall and said second inner wall surfaces, and introduce said culture liquid, which is introduced into said small space part at the side of said introducing part, into said culture space part, wherein laminar flows along said second inner wall surfaces of said culture space part, respectively, are generated by said culture liquid passing through said slit portions from said small space part at the side of said introducing part, to diffuse said culture liquid from said laminar flows along said second inner wall surfaces, respectively, in said culture space part.