Medical bag and method for preparing the same.

摘要

A medical bag made from a thermoplastic resin and having a mouth portion (2) and a receiving portion (3) is here disclosed, and the medical bag is prepared by positioning a ferromagnetic heating element (7) between the mouth portion and the receiving portion, and causing the heating element to generate heat by radiofrequency induction heating, whereby the mouth portion and the receiving portion are melted and bonded together. This technique can also be suitably utilized for thermoplastic resins, for example, polyolefin resins to which high-frequency bonding cannot be applied.