Pad base for transdermal administration and needle

摘要

The object of the present invention is to provide a pad base for endermism which hardly causes bad influence on organism even if a needle fractures in the skin and remains in the MicroPatch method. It is the pad base for endermism in which a minute needle 1 is installed upright on the skin side of a patch base 2 for skin. The minute needle 1 is formed from a biodegradable resin and is composed so as to be able to be injected an administering drug in a hollow center of an axle portion (a hollow portion 3 ). Even if the injection needle fractures and remains in the skin, the minute needle 1 is decomposed in vivo because it is made of a biodegradable resin; therefore, there is little bad influence is to organism.