Endoprosthesis

An aid used in medicine that is intended for permanent incorporation into the body. These can be joint prostheses, heart valve prostheses, vascular prostheses, breast and dental implants. The advantage over transplants is that endoprostheses consist of inert substances and are not rejected.

https://de.wikipedia.org/wiki/Gefäßprothese _{(Wikipedia CC-by-sa-3.0)}

https://de.wikipedia.org/wiki/Endoprothese _{(Wikipedia CC-by-sa-3.0)}