Hi im asked to make 40 page report about a new total knee replacement with wireless technology as a final assignment. This is what i thought of: The total knee replacement will have 5 sensors on each part of the knee upper part and lower part(femoral and tibial) each of the 5 will be connected to a microchip. The microchip has a lithium/iodine battery connected right next to it. also the microchip has two wires connected to each sensor. One that transmit power and the other that receives signals from the sensor. This may seem silly but i was going to say the wire that is going to receive signals is a nano fibre optic cable. The knee replacement will be made from polyurethane instead of the ones used today like titanium and cobalt chromium. the upper part of the knee is made by this process: 1. connect all the sensors and wires. 2. leave a gap between the sensors and wires by something....... 3. put the system in a housing 4. pour polyurethane in there (potting) 5. leave dent to place microchip and battery during surgery 6. use surface grinding to make the part as smooth as possible. same procedure for lower part of the knee so they will slide on each other It doesnt have to be practical but i want something fancy. so is the fibre optic embbeded in the polyurethane a good choice to transmit data from the sensors? since polyurethane is sterilizable. The fibre optic will be totally embbeded in the knee replacement ( no contact with body parts and fluids). or is there another better material to transmit signals? Also the data collected by the microchip will be sent to a monitor that is encased in a brace by RFID. This brace can be wrapped around the knee. then the monitor will send this data to the users device via bluetooth.