Sensing, interrogating, storing, telemetering and responding medical implants

(57) Are the concentration of summary pressure, a fluid style, and an analysis thing, PH, and a sensor that answers other variables, and Feedback loop, After the piece of a transplant has been arranged to a patient's inside of the body, the measurement performed by using a sensor is answered, and the piece of a transplant equipped with the sensor including a means to change the piece of a transplant is developed. The feedback from a sensor tells change of expansion of the piece of a transplant which it is required and is obtained, etc. , when the diameter of a container changes temporally, or when use of the piece of a transplant becomes impossible or it moves. In another enforcement form, the piece of a transplant contains an activity medicine, a preventive medicine, a diagnostic product, or pH change agent biologically. The piece of a transplant is formed of temperature or pH response material, and thereby, if temperature or pH changes, the above-mentioned medicine will be emitted.