System comprising a secondary device with a piezoelectric actuator wirelessly supplied and controlled by a primary device
First Claim
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1. A system comprising:
- an implantable medical or non-medical device comprising at least one piezoelectric actuator; and
an external device having a primary set with at least one primary coil and an electronic supply driver for supplying primary signals to said primary set for wireless transfer of energy and control commands between said external device and said implantable device for remote power and control of said piezoelectric actuator;
said implantable device including a resonant circuit comprising a secondary set with at least one secondary coil, a capacitor and electronic components powered by said secondary set, said piezoelectric actuator being powered and controlled through said secondary set of secondary coils and said electronic components;
wherein a direction of displacement of said piezoelectric actuator depends on the phase and/or on the amplitude and/or frequency of at least one first signal supplied to at least one coil in said at least one primary set;
wherein the direction of displacement of said piezoelectric actuator depends on a direction of a phase shift between one first current supplied to one first coil of said primary set and a second current supplied to one second coil of said primary set.
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Abstract
A system for contactless transmission of energy and control signals between a primary device and a secondary device. The primary device has a primary set with at least one primary coil and an electronic supply driver for supplying primary signals to the primary set of primary coils. A secondary device has a secondary set with at least one secondary coil, at least one piezoelectric actuator, and electronic components including a resonant circuit powered by the secondary set. The piezoelectric actuator is powered and controlled through the secondary set of secondary coils and the electronic components.
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Citations
27 Claims
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1. A system comprising:
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an implantable medical or non-medical device comprising at least one piezoelectric actuator; and an external device having a primary set with at least one primary coil and an electronic supply driver for supplying primary signals to said primary set for wireless transfer of energy and control commands between said external device and said implantable device for remote power and control of said piezoelectric actuator; said implantable device including a resonant circuit comprising a secondary set with at least one secondary coil, a capacitor and electronic components powered by said secondary set, said piezoelectric actuator being powered and controlled through said secondary set of secondary coils and said electronic components; wherein a direction of displacement of said piezoelectric actuator depends on the phase and/or on the amplitude and/or frequency of at least one first signal supplied to at least one coil in said at least one primary set; wherein the direction of displacement of said piezoelectric actuator depends on a direction of a phase shift between one first current supplied to one first coil of said primary set and a second current supplied to one second coil of said primary set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A medical system comprising:
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a medical implant comprising at least one piezoelectric actuator, exclusively passive electronic components including a resonant circuit and arranged for powering and controlling said actuator, and at least one secondary coil; and an external device having at least one primary coil and an electronic supply driver for supplying primary signals to said primary coil for wireless transfer of energy and control commands between said external device and said medical implant for remote power and control of said piezoelectric actuator; wherein a direction of displacement of said piezoelectric actuator depends on the phase and/or on the amplitude and/or frequency of at least one first signal supplied to said primary coil, wherein the direction of displacement of said piezoelectric actuator depends on a direction of a phase shift between one first current supplied to one first coil of said primary set and a second current supplied to one second coil of said primary set. - View Dependent Claims (26, 27)
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Specification