Abstract: Disclosed is an artificial trachea comprising: a hollow tubular base material whose cross-section in a direction orthogonal to the central axis of the tube has an approximately circular shape.

Abstract: Provided are a scaffold material that functions as a scaffold material for two weeks or more in vivo and causes substantially no foreign-body reaction, and a method for producing the scaffold material. Specifically, a porous scaffold material comprising collagen fibers is provided.

Abstract: Provided are a scaffold material that functions as a scaffold material for two weeks or more in vivo and causes substantially no foreign-body reaction, and a method for producing the scaffold material. Specifically, a porous scaffold material comprising collagen fibers is provided.

Abstract: A structure made of collagen for improving promotion of nerve tissue regeneration, curing and regeneration of a defective part of a soft biological tissue and so on without using laminin or nerve growth factor (NGF), and a member for tissue regeneration including the same. The structure made of collagen has a thin film multilocular formation and is therefore a structure different from a colloid form, a gel form, and a fiber form. When the new structure made of collagen is used as a member for tissue regeneration, surprisingly, promotion of regeneration, shortening of a treatment period, functional recovery, or the like of bodily tissue such as nerve tissue, subdermal tissue, submucosal tissue, membranous tissue, fat tissue, muscle tissue, skin tissue, and gingival tissue can be improved. When the structure is used in a patient having neuropathic pain, the member has an effect on the disappearance of the pain.

Abstract: A new structure made of collagen for improving promotion of nerve tissue regeneration, curing and regeneration of a defective part of a soft biological tissue and so on without using laminin or nerve growth factor (NGF), and a member for tissue regeneration including the same. The structure made of collagen has a thin film multilocular formation and is therefore a new structure different from a colloid form, a gel form, and a fiber form. When the new structure made of collagen is used as a member for tissue regeneration, surprisingly, promotion of regeneration, shortening of a treatment period, functional recovery, or the like of bodily tissue such as nerve tissue, subdermal tissue, submucosal tissue, membranous tissue, fat tissue, muscle tissue, skin tissue, and gingival tissue can be improved. When the structure is used in a patient having neuropathic pain, the member has an effect on the disappearance of the pain.

Abstract: The present invention provides a new structure made of collagen for improving promotion of nerve tissue regeneration, curing and regeneration of a defective part of a soft biological tissue and so on without using laminin or nerve growth factor (NGF), and a member for tissue regeneration including the same. The structure made of collagen according to the present invention has a thin film multilocular formation and therefore a new structure different from a colloid form, a gel form, and a fiber form. Therefore, when the new structure made of collagen according to the present invention is used as a member for tissue regeneration, surprisingly, promotion of regeneration, shortening of a treatment period, functional recovery, or the like of bodily tissue such as nerve tissue, subdermal tissue, submucosal tissue, membranous tissue, fat tissue, muscle tissue, skin tissue, and gingival tissue can be improved.