TISSUE PIECE PINCHING DEVICE AND CULTURE KIT

摘要

Under a state where the zipper (22) of a culture bag (20) is opened, an operator depresses the operating button (43) of an arm (40) with one finger. Consequently, a force for oscillating the arm (40) to separate a retaining portion (49) upward from the culture surface (32) around a pin (42) acts against the urging force of a leaf spring (50). Consequently, the tip (52a) of an extended portion (52) ascends to a predetermined position while resisting against the urging force of the leaf spring (50). Since the lower surface (20a) of the culture bag (20) is retained by a base (31) and the upper surface (20b) is raised upward by the tip (52a) of an extended portion (52), opening (24) of the culture bag (20) is widened. Since the width of the base (31) is larger than that of the arm (40), upper space of the culture surface (32) is not occupied by the arm (40) and a sufficiently wide work space is provided in the culture bag (20).