Abstract: An adhesion-preventive film is provided that is excellent in flexibility and can prevent cracks from occurring. The adhesion-preventive film contains a copolymer of lactide and caprolactone. The lactide and the caprolactone of the copolymer has a mole ratio in the range of 65:35 to 80:20. Even when this adhesion-preventive film is used in a curved state in vivo or is wound around an affected part such as a tendon, for example, it can provide an adhesion-preventive function for a sufficiently long period without cracking.

Abstract: A syringe-type cell handling device for storing and subsequently transplanting, into a living body, cells harvested from a living body or cells obtained by culturing harvested cells. The syringe-type cell handling device includes a vessel having a closed mouth and being at least partially composed of a main body, and a plunger that is slidably insertable into the main body such that the handling medium can be transplanted into a living body by applying a pushing force to the plunger. At least a part of the device that contacts the fluid handling medium, when the vessel holds the handling medium, is a gas permeable region for passing a quantity of gas necessary for survival of the cells. It is preferable that at least a part of the storage vessel inner wall in contact with the cells is formed from a cell non-adhesive material.

Abstract: An adhesion-preventive film is provided that is excellent in flexibility and can prevent cracks from occurring. The adhesion-preventive film contains a copolymer of lactide and caprolactone. The lactide and the caprolactone of the copolymer has a mole ratio in the range of 65:35 to 80:20. Even when this adhesion-preventive film is used in a curved state in vivo or is wound around an affected part such as a tendon, for example, it can provide an adhesion-preventive function for a sufficiently long period without cracking.

Abstract: A process for producing a porous object is provided that makes it possible to control pore sizes, particularly not only smaller pore sizes but also larger pore sizes. The pore sizes are controlled by: preparing a mixed solution containing a polymer including a copolymer of lactide and caprolactone, a solvent in which the polymer has a relatively low solubility, and a solvent in which the polymer has a relatively high solubility and that is compatible with the solvent in which the polymer has a relatively low solubility; varying the content of the solvent in which the polymer has a relatively low solubility in the mixed solution, when the mixed solution is frozen and dried to produce the porous object; and cooling the mixed solution at a rate of 300° C./hr or lower in freeze-treating. Thus a porous object with a pore size of 30 to 1800 ?m can be obtained.

Abstract: The main objects of the present invention, which relates to regenerative medical treatments, are to enable (i) storage and conveyance of harvested or cultured cells without contamination occuring (ii) simple injection of the cells into a living body. To achieve these objects, cells harvested from a living body, or cells obtained by culturing harvested cells, are stored in a syringe-type storage vessel and subsequently transplanted into a living body. It is preferable that at least a part of the storage vessel inner wall in contact with the cells is formed from a cell non-adhesive material. Besides enabling cells in the vessel to take in the oxygen they require to survive, the present invention also enables cells quick and easy transplantation of cells into a living body without a cell detachment process, because cells are prevented from adhering to the inside of the vessel.