A sensor wire system with an integrated power source and wireless transmission is provided. A sensor wire includes a distal end that is inserted into a blood vessel of a patients body. A sensor that is mounted at the distal end of the sensor wire and an electronics unit of the distal end of the sensor wire transmit information generated by the sensor to a receiver unit outside of the patients body wirelessly. The system further includes a power source, which in one example is mounted to the distal end of the sensor wire, that supplies power to the electronics unit. Preferably the wire body functions as an antenna for the wireless broadcasting.
