System And Device Implantable In Tissue Of A Living Being For Recording And Influencing Electrical Bio-Activity
First Claim
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1. A device for implantation in a living being for detecting electrical bioactivity comprising:
- two measuring electrodes for detecting a voltage difference representing bioactivity of tissue of the living being;
a wireless transmitter for transmitting information outside the tissue, the information relating to the bioactivity as represented by the voltage difference detected by said two measuring electrodes;
a wireless energy receiver for receiving energy from outside the tissue to supply said transmitter with electrical energy, said transmitter and said energy receiver operating in parallel in time; and
a voltage sensitive switch connected between said two measuring electrodes and said transmitter, said voltage sensitive switch being positioned for switching said transmitter such that information relating to changes in electrical bioactivity can be coded in analog fashion in the form of a change of at least one transmission property of said transmitter, and information relating to the identity of said transmitter can be coded in analog fashion in the form of at least one transmission property of said transmitter.
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Abstract
Devices are implantable in tissue of living beings for detecting and influencing electrical bioactivity.
36 Citations
27 Claims
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1. A device for implantation in a living being for detecting electrical bioactivity comprising:
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two measuring electrodes for detecting a voltage difference representing bioactivity of tissue of the living being;
a wireless transmitter for transmitting information outside the tissue, the information relating to the bioactivity as represented by the voltage difference detected by said two measuring electrodes;
a wireless energy receiver for receiving energy from outside the tissue to supply said transmitter with electrical energy, said transmitter and said energy receiver operating in parallel in time; and
a voltage sensitive switch connected between said two measuring electrodes and said transmitter, said voltage sensitive switch being positioned for switching said transmitter such that information relating to changes in electrical bioactivity can be coded in analog fashion in the form of a change of at least one transmission property of said transmitter, and information relating to the identity of said transmitter can be coded in analog fashion in the form of at least one transmission property of said transmitter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for implantation in a living being for influencing electrical bioactivity comprising:
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two electrodes for applying an electric voltage in tissue of the living being to influence bioactivity;
an energy receiver for receiving energy from outside the tissue to supply the two electrodes with electrical energy;
a control information receiver for receiving wireless control information signals from outside the tissue, said energy receiver and said control information receiver operating in parallel in time;
a voltage-sensitive switch connected between said control information receiver and said two electrodes, said voltage-sensitive switch being positioned for switching a flow of electric current from said energy receiver to said electrodes under the control of said control information receiver; and
the identity of said control information receiver and the magnitude of the influence on the electrical bioactivity being coded in analog fashion by at least one of the frequency and amplitude of the control information signals. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification