| 主权项 |
1. A method for controlling wireless transmission of energy supplied to an electrically powered medical device when implanted in a patient, the method comprising powering the medical device by an internal energy receiver of the medical device, wirelessly supplying energy to the internal energy receiver by an external energy source located externally to the patient, wherein the external energy source is equipped with a primary coil from which the external energy source inductively transmits said energy to a first secondary coil in the energy receiver, the method further comprising: determining, by measurements, one or more parameters related to a first coupling factor between the primary coil and the first secondary coil,
transmitting, by the external energy source, a first amount of energy to the energy receiver for enabling the medical device, to detect, information related to the first coupling factor,
sending wirelessly feedback information related to said first coupling factor to the external energy source, receiving, at the external energy source, said feedback information from the medical device,performing, by the external energy source, a predetermined action based on said feedback information, and at least one of;letting the first secondary coil be substantially without electrical load when measuring the parameters related to the first coupling factor, and providing an electronic component connected to said first secondary coil, for preventing or substantially reducing the flow of electrical current between the first secondary coil and the medical implant during the measurements of parameters related to the first coupling factor. |
