System, apparatus, and method for in-vivo assessment of relative position of an implant
First Claim
1. A method for providing an in-vivo assessment of relative movement of an implant in a living being, the method comprising:
- positioning a first assembly comprising a passive electrical resonant circuit within the living being; and
positioning a second assembly within the living being spaced from the first assembly;
selectively electromagnetically coupling the first assembly to an ex-vivo source of RF energy; and
generating an output signal from the first assembly, in response to the electromagnetic coupling, characterized by a frequency that is dependent upon a distance between the first assembly and the second assemblywherein the characterized frequency is the resonant frequency of the first assembly dependent on the distance between the first assembly and the second assembly.
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Abstract
A method for providing an in-vivo assessment of relative movement of an implant that is positioned in a living being is provided wherein a first assembly and a second assembly are positioned within the living being. The first assembly includes a passive electrical resonant circuit that is configured to be selectively electromagnetically coupled to an ex-vivo source of RF energy and, in response to the electromagnetic coupling, generates an output signal characterized by a frequency that is dependent upon a distance between the first assembly and the second assembly at the time of the electromagnetic coupling.
377 Citations
26 Claims
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1. A method for providing an in-vivo assessment of relative movement of an implant in a living being, the method comprising:
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positioning a first assembly comprising a passive electrical resonant circuit within the living being; and positioning a second assembly within the living being spaced from the first assembly; selectively electromagnetically coupling the first assembly to an ex-vivo source of RF energy; and generating an output signal from the first assembly, in response to the electromagnetic coupling, characterized by a frequency that is dependent upon a distance between the first assembly and the second assembly wherein the characterized frequency is the resonant frequency of the first assembly dependent on the distance between the first assembly and the second assembly. - 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, 25, 26)
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Specification