Provide a kind of medical material, for save one of property be intrinsic polyanionic polysaccharide be raw material, have high safety because do not need using chemical cross-linking agent agent produce in, and moderate strength with one suture etc. high energy conduct. Medicinal material is reinforcing material and a film section to penetrate at least part of reinforcing material be to want and reinforcement material. In medical material, film section composition does not dissolve the first polyanionic polysaccharide that water soluble salt is contained by raw material in film precursor part by water and contains the first acid anhydrides with treatment fluid, with reinforcing material be woven fabric or adhesive-bonded fabric includes biodegradable/absorbing polymeric material, or sponge-like vector, or 1/10th seconds polyanionic polysaccharide of water soluble salt are contained by raw material in the carrier water insoluble original material form ontology that felted is formed and contain second of acid anhydrides with treatment fluid.
