METHOD AND APPARATUS FOR SUPPLYING ENERGY TO A MEDICAL DEVICE
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Abstract
In a method and apparatus for supplying wireless energy to a medical device (100) implanted in a patient, wireless energy is transmitted from an external energy source (104) located outside a patient and is received by an internal energy receiver (102) located inside the patient, for directly or indirectly supplying received energy to the medical device. An energy balance is determined between the energy received by the internal energy receiver and the energy used for the medical device, and the transmission of wireless energy is then controlled based on the determined energy balance. The energy balance thus provides an accurate indication of the correct amount of energy needed, which is sufficient to operate the medical device properly, but without causing undue temperature rise.
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Citations
288 Claims
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1-268. -268. (canceled)
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269. An apparatus for controlling the transmission of wireless energy supplied to an electrically operable medical device adapted to be implanted in a mammal patient, comprising:
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an external energy source adapted to be located outside the patient, comprising a primary coil adapted to transmit wireless energy, an internal energy receiver located inside the patient, comprising a secondary coil adapted to receive the wireless energy inductively, the internal energy receiver being connected or connectable to the electrically operable medical device for directly or indirectly supplying received energy thereto, and at least one stabilizing unit to stabilize the energy in the electrically operable medical device, wherein the electrically operable medical device is adapted to transfer feedback control information to external energy source encoding the feedback control information, wherein the feedback control information is related to the energy for operating the medical device, adapted to be used to control the transmission of wireless energy from the external energy source, and wherein the electrically operable medical device is adapted to consume, store or consume and store the energy after it has been stabilized in the at least one energy stabilizing unit of the electrically operable medical device, wherein the apparatus is configured to, first transmit the wireless energy with a predetermined energy rate and second transmit the wireless energy based on an energy balance, adapted to be determined by detecting the direction and rate of change in the current amount of accumulated energy in the at least one energy stabilizing unit, wherein the rate of change is the speed of change of the energy balance, measured as energy in the stabilizing unit, wherein the apparatus is adapted to repeatedly detect the direction and speed of change in the current amount of accumulated energy in the at least one energy stabilizing unit, intermittently at certain intervals during ongoing energy transfer executed on a continuous basis during the transmission of wireless energy, and wherein the feedback control information is related to the direction and speed of change in the current amount of accumulated energy in the at least one energy stabilizing unit. - View Dependent Claims (270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287)
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288. An apparatus adapted to control the transmission of wireless energy supplied to an electrically operable medical device implanted in a mammal patient, and further adapted to transmit said wireless energy by means of a primary coil in an external energy source located outside the patient and comprising a secondary coil adapted to receive energy inductively in an internal energy receiver located inside the patient, the internal energy receiver being connected to the medical device for directly or indirectly supplying received energy thereto, the apparatus being adapted to:
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transfer feedback control information relating to the energy for operating the medical device, generate the feedback control information requiring artificial intelligence store the transferred feedback control information in a internal control unit switch the secondary coil on and off controlling the switching by the internal control unit, use the transferred feedback control information to control the transmission of wireless energy from the external energy source, and consume, store or consume and store the energy after it has been stabilized in at least one energy stabilizing unit of the medical device, the wireless energy being first transmitted with a predetermined energy rate, and then transmitted based on an energy balance, which is determined by detecting the direction and rate of change in the current amount of accumulated energy in the at least one energy stabilizing unit, where the rate of change is direction and speed of change of the energy balance measured as energy in the stabilizing unit, repeating intermittently at certain intervals during ongoing energy transfer executing on a continuous basis during the energy transfer.
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Specification