Implantable biocompatible immunoisolatory vehicle for delivery of selected therapeutic products

[Subject] The piece function of a transplant which attains to a long period of time is secured, and the adequate amount of a required substance, for example, enzyme, and hormone is emitted, or finish crossing other required metabolism to a long period of time. [Solution means] The core containing the useful cell which is a vehicle of immunity interception nature transplantable in order to give activity output or function biologically to an individual, and was distributed in the biocompatibility matrix made from (a) hydrogel, (b) The vehicle of the immunity interception nature containing a jacket with the surface of the external diffusibility which surrounds this core made from biocompatibility hydrogel material that does not contain the above-mentioned cell projected outside from this core. As this raw きた cell, an insulin production cell, adrenal gland enterochromaffin cells, an antibody secretory cell, a fibroblast, a nerve glue astrocyte, a beta cell, and the ovarian cells of a Chinese hamster are desirable, and the alginic acid salt over which the bridge was constructed with the multivalent ion is desirable as a material of this hydrogel. [Selection figure] Nothing