SEALING BODY, CAP WITH THE SEALING BODY, AND MEDICAL CONTAINER

摘要

A generally disk-like sealing body (10) formed of two or more types of thermoplastic elastomers with different hardnesses, comprising a needle stick part (11) at least continued in the axial direction and an outer edge part (12) formed by surrounding the needle stick part. The sealing body is characterized in that the hardness of the outer edge part (12) is higher than that of the needle stick part (11), specifically, for example, a difference in hardness between the outer edge part and the needle stick part is 5 to 15 in accordance with JIS A Hardness. The sealing body can be used as a cap (15) by closely fitting it into a generally cylindrical outer frame body (16) formed of a hard plastic. Also, the sealing body can be used as a medical container by welding the cap (15) to the mouth part of the plastic container or plugging the sealing body (10) into the mouth part.