Body cavity sealing member, method for manufacturing the same, and corpse treatment device

A body cavity sealing member to be inserted into a body cavity of a corpse to absorb body fluids, expand, reside in the body cavity, and seal a passage of the body cavity to prevent leakage of the body fluids, comprising

• a molded object formed of a plurality of fiber elements of double-layer structure molded into a substantially columnar shape, and the sealing member is formed such that at least one end part of the molded object is tapered toward the end thereof,
• a surface of the tapered end part being formed of distal ends of the fiber elements fused to another,
• each of the fiber elements including an inner layer which is a core made of an acrylic fiber and an outer layer which is formed to surround the inner layer and has a higher water-absorbability and higher swellability than the inner layer, and has the property of absorbing body fluids in the body cavity to expand up to approximately 2.5 or more times the diameter thereof, and
• wherein the surface of the tapered end part with fused distal ends of the fiber elements has a higher hardness than the surface of the remaining columnar part.